Windows Support Forum

Power supply Architecture ?

Q: Power supply Architecture ?


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Preferred Solution: Power supply Architecture ?

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Hey, i'm building a computer but i haven't realized that the power supply i need is an atx 2.0. What power supply should i get??

I was orignally looking at the Ultra X-connect but it doesn't support atx 2.0 Damn.

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Toshiba Satellite L305-5955, Ive taken apart and replaced power jack. Not directly soldered to motherboard. While still apart, and battery out/in, connected power supply and still absolutely no response. Power supply is NOT original, and slightly different specs, i.e original 19v..6.3A

current 19v..3.1A

A:Toshiba Satellite L305-5955 does not respond to power supply, new power jack

Almost certainly the problem is that the current rating is wrong, if the laptop needs
6.3 A of current, it won't function on less (just as you can't use a 3A fuse for a kettle!)
Unfortunately it must be the right current rating, I know, I've been caught that way too!
Maybe you can exchange it?
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Yesterday in my house,electric fuse was switched to turn on cooker in my kitchen. During this power delivery was stopped for 4-5 second only.
When power back on then pc automatically turns on and just before bios show me :"?Power supply surges detected during the previous power on ASUS anti-surge was triggered to protect system from unstable supply unit.
Press F1 to continue.? And then pc booted fine to Windows.

Is this normal ? Did it damage something? Why i get that message is this normal?

6700K stock
Asus Z170-P
Corsair 750 RM
Gtx 1080
SSD 1x
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Ever since i got this new motherboard and CPU ive been having a bit of a nightmare Wont Gigabyte Power up ga-ma790fx - Phenom AMD 9850 Supply & Power with it Gigabyte ga-ma fx-ds -Latest Bios AMD Phenom Black Edition gigs PC ram Corsair XMS CM X - ATI Radeon The problem is that the motherboard will NOT power up at all with the of the latest power supplies watt i have It wont work at all with Nothing happens its just dead Arctic watt Jeantech PSU brand new and working Corsair watt HX PSU working It only seems to work with my Jeantech Watt PSU and i cant for the life of me figure out why Ive tried everything to get the board to work with the new PSU s I had thought that the PSUs i got were dodgy but after testing out one in an older PC it worked fine Ive removed all parts and tried powering up and i cant get it to boot up But the PC seems to work fine with the oldish watt PSU which i find just unbelievable Can anyone help with this nightmare Now on the Gigabyte site the CPU i have isnt listed as supported by this motherboard which is kinda worrying could this be the reason If so how the old Power Supply Wont Power up - Gigabyte ga-ma790fx & AMD Phenom 9850 PSU boots up I just want to have the fracking thing working with the right PSU nbsp

A:Power Supply Wont Power up - Gigabyte ga-ma790fx & AMD Phenom 9850

if I read the specifications right on your mobo... it implies that it has the 4 pin PCI-e input(power) but it also has the 8pin ATX power conector. (it may be simply removing a cap that is actually right next to the 4 pin connector, thus making it an 8 pin connector (thats how it was on my mobo)

Try using the 8pin power with your new PSU, see if that works.
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I m interested in the Toshiba G laptop but have heard that you can t use it on airplane seat power It comes with a W AC power supply Vx A but I ve been told that most airlines limit seat power to - W max Lind sells a V car adaptor for the G but specifically won t include an airline plug for this reason which I can get independently of course I ve read some interesting electrical discussions on this board Can ya ll comment on the following or provide any general advice about power consumption Given that the voltage of the laptop and airline seat power pretty much match up - V if the amp draw on the laptop exceeds what the airline power supply can deliver what will happen Will it damage the laptop to feed it insufficient current Will it shut down Supply, Power Airline 120W limitations Toshiba Power G25-AV513, the laptop altogether Merely dim the screen If I remove the laptop battery which requires power to charge it how much will that reduce the power Toshiba G25-AV513, 120W Power Supply, Airline Power limitations need of the laptop I m not sure how to work the Toshiba G25-AV513, 120W Power Supply, Airline Power limitations math but the spec sheet states the battery supplies mAh at A output Does it require the same to charge it Most importantly on my hour transpacific flights will the DVD player work with that ultrabrite screen at the low airline power supply A nice feature of the laptop is that you can watch DVDs without powering up the Windows operating system it has a small linux OS for the DVD player Granted the DVD drive and screen are probably of the most power hungry devices Has anyone used a G or a similar W laptop on a plane The ToshibaDirect support staff were mum on the issue probably for legal reasons Thanks nbsp
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I picked up this Alienware 5700 off ebay to hopefully refurbish for my son but I'm new at this and still learning and so this thing has me baffled. The laptop is in pristine condition but shows no signs of life. When I plug in the power supply the green light on the power supply goes from solid green to blinking rapidly to the point you can barely see it. To me that would mean a short somewhere right ? If so where ? Has anyone else ever had experience with something like this ? I just don't want to go buying a new battery for a laptop that maybe fried already. Any help would be greatly appreciated.

A:No power, no lights but green light on power supply blinks rapidly

Remove the laptops battery and try the AC power only. If the green light does the same, it still could only be a bad AC adapter, or at worst, a shorted laptop motherboard
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I have a Dell 8600 about two years old. When I plug in the AC adapter, it intermittently fades to the battery as though the plug was pulled out (its not) and of course the screen fades in an out when every time it swithces--it does it every 30 to 60 seconds or so. I switched to a different AC adapter (I have a Dell 600M with the same AC adapter)-same thing so I know it is something internally. Any ideas?

A:Dell Laptop Power Supply Fading In and Out--power jack is bad or loose?
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Hi, I just bought an HP pavilion e9300 a few week ago. And I am going to upgrade the power supply so that I can get a new graphic card--ATI 4870 which requires at least 500 watt power supply. My current computer is shipped with a 350 watt power supply. I will probably get a 650 watt considering the 70% effeciency of power supply.
However, when I talked to an HP technician, he insisted that I could go for a power supply with no more 450 watt. Because the system I just got has a motherboard which has a max power limit 450 watt. He said if I go beyond that, the motherboard will burn out.
So what shall I do? I really want to get ATI 4870 work well on my computer.
Thx very much.

A:Does power supply with higher power rating really burn motherboard?

The long answer is "No".
Just be sure of the dimensions of the power supply before you order a replacement, as HP uses some pretty strange sizes sometimes, and you want the new one to fit with room to spare.
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Sorry I don't know the proper terms, but basically the pin inside the jack where the power cord gets plugged into on my laptop was bent so that it's really hard for me to plug in my power cord and have it stay in place. My warranty with best buy has expired, so I need to figure out how to solve this problem on my own. I can't just leave it like this because the cord comes out really easily and I can't continue to work with such a tenuous setup. Anyway, is this just a matter of replacing the entire unit inside my laptop? I know you probably need more information, but I'm not sure what to provide, so please ask any questions. The laptop is a Toshia M-45, about 3-4 years old. Thanks in advance

A:Bent power supply pin - Hard to plug in power cord

umm.. bend it back so it's closer to normal? That's all I can say about it. usually works for me.
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It's been a while since I built a system from scratch and have a... errr... simple question

gfx: Sapphire HD3850 512MB Ultimate (passive)

MB: MSI P35 Neo2 FIR

PSU: Seasonic M12II 500W

The motherboard has a power connector for the graphic card next to the slot.

Is there any reason I should connect the power for the card to the power connector on the board instead of directly to the power supply?

A:Graphic card power to power supply or connector on motherboard?

First time I have ever seen that feature. I like it. I'm thinking that is a neat/easy way to partially eliminate cable clutter from the PSU. Give it a shot, you can always revert to PSU cable if you wish.
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Hello guys.  Can anyone help me understand the power supply on the HP Envy Phoenix 860-019?  The PCIE connector 6 pin connected to the GTX 960 has black and white wires.  Shouldn't there be yellow and black wires?  Yellow is usually 12 volt and black wires ground.  Is the 6 pin connected to my GTX 960  supplying a standard 75 watts of power or something else?  I want to install a GTX 1070 but the 6 pin wire colors are not the industry standard color scheme.  Also there is a 2 pin power connector with a white and black wire.  Usually a 6 pin and a 2 pin can be used together to connect into a 8 pin socket on a GTX 1070.  Will my connectors supply the needed power and connect properly because the color scheme on the wires make no sense. Thank you
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I have a Sony VGC-RB42G computer. I recently moved my computer, cleaned off all the dust, and when I plugged everything back in, it won't power up. The light on the power supply blinks green, inside the motherboard also has a green light that blinks as well. It has a ticking sound too, but I am not sure if it is coming from the power supply or the motherboard. Any idea what could be wrong.

FYI, I have already unplugged everything from the power supply, pulled out the ram, checked the battery, and put everything back together and still no change. One thing I thought was strange was after I unplugged everything, I pulled the power into the power supply again and this time the green light came on but did not blink. It stayed solid.


A:No Power, Blinking green light on power supply and motherboard

Sounds like a Power Supply problem.
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I shut down my Pavilion Elite for 1 week while away and now it will not turn on. The power supply light is on, I replaced the CMOS battery and the power switch is ok.

A:Pavilion elite power supply light on, won't power up

As you did not mention any message or display on the screen, I would use this tutorial for a step by step diagnostic.  It also helps to remove the side panel, and visually watch the CPU and rear case fan movement(s).  As you press the power button, pay attention to the fans. Also does the Power Supply LED stay ON? Or did it go OUT when you pressed the power button?
Relevancy 53.75% we finally got my girlfriends new PC up and running. The problem im having...or more of a concern really. Is when you flip off the power supply, and then flip it back on, the PC gets a short burst of power. IE the lights and fans all come on for a second or two. Then you can press the power button and turn it back on.

Any ideas guys?

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Working on a dell dimension 2400,think may have bad power supply.Anybody know if that model uses a proprietary PSU? or will a regular industry standard one work?

A:Dell Power Dimension 2400 power supply

Should be a standard ATX PS.
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Ok so it's time again for me to pick a new power supply however I'm in need of some help determining the appropriate wattage for my hardware setup AMD Phenom II X nm AM GSkill Ripjaw X GB Dual-Channel DDR MHz - - - new a Consumption-Picking Supply Hardware Power Power Corsair TX w I dont think its the V ASUS M A AM r here are the voltages listed on speccy if they are of any use V V V V CPU CORE V VIN V VIN V V V VIN Hardware Power Consumption-Picking a new Power Supply V VIN V VIN V ASUS ATI Radeon HD x in Crossfire w ea GB Patriot Pyro SE SSD GB OCZ OCZ-ONYX SSD LG HL-DT-ST DVDRAM GH NS ATA I have terrible luck with random bsod's and power supplies pooping on me I want to pick one this time that will last me Also I have my power running through a Monster Power HT I live in a new apartment so the wiring should be ok I've dusted out all Hardware Power Consumption-Picking a new Power Supply of the components inside the case double checked my connections all that jazz I've got a cooler over my memory I am still using my stock cpu cooler but thats changing soon I get crashes idle too Any help I could recieve I would appreciate thanks Andrew

A:Hardware Power Consumption-Picking a new Power Supply

You have pretty much the same problem as me (getting BSOD's randomly). For me it's bulging capacitors on motherboard. You should take a closer look for capacitors on your motherboard. Dead capacitors look something like that:
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Hi forum and pc gurus My problem is specified down to my PSU at least I think so W Logisys PSU - maybe the quality has something to do with it I paid for it from NEW EGG I have A Gigabyte GA- P-DS Motherboard a Intel Core DUO Conroe GHz processor with heatsink and get I HELL! POWER FROM PC built HELP! custom power to on! cannot SUPPLY my Fan Sapphire ATI X Pro GIGS of WINTEC DDR PC RAM SATA Maxtor GIG HD inch SATA Gig HD and two DVD Burner Optical Drives both IDE I have it hooked up like this two Optical Drives connected to IDE connector cable which POWER SUPPLY FROM HELL! I cannot get my custom built PC to power on! HELP! is hooked into the IDE input on the motherboard both are set to slave Two CD outs connected one to each Optical Drives to one CD input on the motherboard Both HD s are connected to SATA inputs on the motherboard one is set for master one is set for slave I heard that it did not matter but wanted to state that anyway then my ATI RADEON X is hooked directly into my only PCI Xpress slot The power connectors are then all hooked into their respective inputs on the drives and Video Card ANd last but not least all the Power button and LED connectors are hooked into their input on the motherboard wich I set up exactly as the motherboard diagrams and directions directed I turned the switch on the PSU to on and I only got a faint mouse like squeek then nothing not even the fan So I figured it was DOA so I had newegg send me another I got it today installed it hooked all the power connectors to the hardware then popped the switch to on nothing again and the same little squeeky mouse like noise I have no idea what went wrong and this is my first custom built computer for me so any help would be great In relation I did not wear a ESD protective wristband but I did constantly touch metal to keep myself grounded but I couldnt rule out ESD to the motherboard I hope not but it is a possibility AND what is the possibility that both PSUs were DOA and what is the possibility that W is not enough to power my entire system THANKS GUYS FOR ANY HELP IN ADVANCE Oh and yeah I have it set to V nbsp

A:POWER SUPPLY FROM HELL! I cannot get my custom built PC to power on! HELP!
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Hi everybody I tried to search on google about this but it s not really help and it never happen to me before so I post here My PC was running normally for a long time just couple weeks ago I sent supply or button problem? power Power my faulty video card xfx nvidia ultra to get warranty service and they sent me back another The new one works fine but Power supply or power button problem? a week later I tried to turn on my computer and there s no power at all No lights on Power supply or power button problem? no fan running just no sign of power So I check inside if there s any wire from the PSU is unplugged but everything looks good nothing seems wrong I m sure the power from the wall is good and the power switch on the back is on So I tried to check the wired again push the power cable to the mother harder and press the button it worked But that doesnt solve the problem if I put something heavy near the PC or the desk is vibrating a little bit the power turns off I press the power button again it would not turn on until I open the case and press the power cable to the motherboard harder it s on I then close the side panel it s off no power This is really annoyed me I dont know what else to do What caused this problem The power supply or the power button Can somebody help me My system specs ECS G T-M mobo Intel E Duo x GB RAM x SATA HD nVidia ultra video card ULTRA s watt PSU nbsp

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Finally broke down and started building a new system - I m too old to game this all started out as a home video project Anyway - gathered all my components now I m working to assemble them The case power plug. fan power New for supply, no schematic, looking came with New power supply, no schematic, looking for power fan plug. an Okia Model -ATX power supply But no wiring schematic I m trying to identify the power supply fan plug - what New power supply, no schematic, looking for power fan plug. seems to be it doesn t at all match the connector on the board And I ve got that positively identified by the board manual The board has a small male pin connection The only thing I can find that might be the fan connector coming from the supply is a small pin plug at the end of of the New power supply, no schematic, looking for power fan plug. strings of drive power harnesses Nothing tucked up behind the supply case or anything Is that likely to be it Or would that be for a floppy or something I tried to Google for a wiring schematic but could find nothing In fact nothing much at all on this brand of supply - just a couple places that sell them Please don t tell me I got an el cheapo that isn t worth having At the risk of getting ahead of myself in case I need to adapt something like that to the different style male connector on the board in this case or something else I may find as i progress is there some type of source for adapters or what would I do Bear with me this probly won t be the last question I ll dream up - just getting started While I m at it - the board manual talks about a connector for a power supply that senses board temps - that s another reason I d like to find a schematic or some sort of instructions for the power supply OH The connectors for the fans in the case don t match the connector on the board either The board has another small male pin connector for the case fan s but these have a larger bigger pin pin connector Again - I suppose it s adapter time Guess I ll need that source Thanks for helping an quot old quot computer student still and probly always in a definite learning curve nbsp

A:New power supply, no schematic, looking for power fan plug.

There are basically two voltages available to you: 5V and 12V. Doesn't really matter where you get it from - some pin on the mobo or some wire from the PSU.

From the PSU the yellow wires are 12V and red ones 5V, black is ground. The fan voltages should be written on the fan itself, the black fan wire is ground, red may be 12V or 5V depending on the fan voltage.

Fan headers on the motherboard should be labelled so, check with a voltmeter what pin gives out what.
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My first post I received my new DVD DL -RW drive today and eagerly installed it I of course unplugged my computer s power supply while doing it After plugging the power back in the green up power disconnecting after power supply Computer won't LED on the back of the CPU started blinking never noticed this before and when I hit the power button NOTHING happen No fan Computer won't power up after disconnecting power supply turns no lights nothing When I unplug the power supply the green LED blinking gets slower and slower and after about minutes it totally stops I plug the power suppply back in and it starts blinking all over again and still the power won t turn on All I did was replace a CD-ROM drive with a DVD Multi drive I didn t mess with anything else so there should be no power supply shortage or problem Any thoughts as to what could Computer won't power up after disconnecting power supply be happening By the way I have a year old Compaq computer with ghz Athlon gig RAM no problems thus far nbsp

A:Computer won't power up after disconnecting power supply

While installing the new optical drive, you might have inadvertently loosened one or more connectors. Recheck all data and power cables to make sure they are tight, including all those to the motherboard.
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I have a generic MB (P-120 CPU ) which I just switched to a different case and power supply. It has an extra "six pin power type connection" in the middle of the board. Only one supply that I have matchs this and the wires are three green and three black. What is the funtion of this connector, it looks from the wire colors to be some form of switch.

Its a case of not wanting to swap out the power suppy from my other unit unless necessary. I have 4 other supplies and none have the extra wire, which is listed as P10.

Many thanks in advance.

A:extra power leads on power supply?

Sounds like typical extra +5V lead and can be used for any number of things...(riser cards,backplanes,to drive extra slots, etc.)
Without knowing the specs. on your motherboard this question is impossible to answer...Post Mobo identification (make/model) or obtain FCC ID and post that. Perhaps we can find a more definitive answer for you...BOL
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I have a server that I would like HD Power Supply Question Power Consumption & to upgrade to TB Hitachi HD s They claim max startup current of A and idling down in the A range The platform will be a -series X with a Core Duo Graphics card is small does not even require aux power connector Not needed to just supply the KVM with x No other signficiant sources of V drain exist other than the MB CPU a slim CD-Drive for installs a slim floppy and one additional GB Power Supply Question & HD Power Consumption SSD startup drive W when active I am looking at an W Corsair I ve heard these are quality supplies and I don t want Power Supply Question & HD Power Consumption multiple rails since no one really knows what sort of Voodoo goes on as to how they divide multiple rails up And I don t want to get into that I will be using a single-rail V PS I can add a second if I need to but I d rather not Do you think this will be sufficient for handling Hitachi hard drives quot Green quot drives are a non-starter since they will drive my Raid controller and then me off the deep end with TLER issues I do have staggered spin-up control of the drives with the controller Thanks for any help nbsp

A:Power Supply Question & HD Power Consumption

Power Supply Question & HD Power Consumption, Pt. 2 - Laptop vs. 3.5"

My second question is this - I have a BTV server that needs to be on at all times during the season to record shows during day and evening.

Suffice it to say that you CANNOT reliably put one of the critters into sleep/hibernate mode and expect it to wake up and reliably record a show. It just won't happen.

Now, this is one case where I can use "Green" 3.5" drives, but I am also considering banking 500GB 7200RPM or even 5400RPM laptop drives. These will all be on a raid controller, but since they will be in pass-thru mode or RAID 0 mode the controller won't freak over TLER like it would with RAID 5/6 and mark the drives bad. The controller also has more than adequate cache to handle a 5400RPM spindle as OTA HDTV generates little more than 2.5MB per second per channel. Even 4 channels at once is 10MB/s and that should not tap the ability of a 3Ware controller with cache on 5400 RPM RAID 0 or even pass-thru drives.

My question is this - 2 500GB laptop drives burn much less startup and idle current than a single 1TB 3.5" drive. Has anyone tried running multiple laptop drives on a RAID controller, and what sort of luck have you had? What sort of sustained throuput can you obtain?

Electricity is a huge factor here, at 12 cents per KWh. I can recover the marginal cost of 2 500GB laptop drives vs. 1 1TB 3.5 drive.

Case construction and drive cages are not the issue here.
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So I hooked my pc up after I took it w/ me to work becuase I though I was going to a lan tonight. But when I came home and plugged it back. I noticed the power supply box light was blinking. And it wont turn on. No power or what so ever. I need help BADLY


A:Power Supply Light Blinking. No Power :(!

Have you opened case to make sure all connections are secure? Something may have come loose while you were transporting it. Give us more info about your computer (e.g. make and model, cpu, ram, name of psu, etc.)
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My power supply died a few days ago and I have replaced it. My PC will now boot but will not send a signal (turn on) the monitor. Everything on the PC seems to work but it just will not turn on signal to the monitor. I have tried two different monitors with the same result.




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was watching dvd and pc cut out completely... high pitch beeping comming from my power supply on hp 110 desktop... when i unplug from tower beeping stops .. plug it back in and it resumes.  No power, no flashing leds ... just constant beeping... no pattern ... just beeps continuously.

A:constant beep from power supply... no power to pc at all.

let me be clear.... beeping not coming from tower.... it comes from the plug in power supply... the square box part of it.
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Hi All Happy New Year to all members and technical assistants I have a little issue in which I require some help and guidance I have a PIII MHZ replaced power Pc supply after wont power on MB Pc wont power on after power supply replaced memory with a ASUS MB- Recently it died on me and assumed that the reason Pc wont power on after power supply replaced I could not get to power it up is due to my power supply I went out and spent the money and bought a brand new power supply from a computer retailor I saw him remove it from a brand new case I Pc wont power on after power supply replaced installed the power supply trying to power it up I can see the fan rotate a little bit but not enough to power on Changed socket and it power on It booted up but after sec it shut itself off and now I cannot power it back on until min later when I went and change power socket once more This time the power did not stay up very long As soon it powered up no more than min later while it was loading windows Xp it shut itself off nad now again can t power it back on I have a power extention and power bar in which I used and both shuts the computer off Anything else plugged to it doesn t seem to do any affect This is the second new power supply I m trying What else can it be I have not tried to place the computer in a different room on a different plug yet I will try that tonight but in the meantime what else can I try Thanks for your help and listening Cheers nbsp

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Ok so lately I have been getting a BSOD at very random times and it looks like a Diver Power State failure. SO all of my friends and every website I go to makes it seem like I need to get a PSU. Right now I have a Quad Core and a 8800GT and 375W PSU. So my friend told me to get a new 700W PSU.

So, if the only fix is to get a new PSU? I tried to rollback my GPU driver but it didn't help.

So any ideas?

A:Driver Power Failure = New Power Supply?

You're greatly risking the health of your whole computer while running with such underpowered power supply. Do yourself a favour and get a quality PSU. That's the cheapest one that is enough and of good quality that I could find with a quickish search.
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Hi I m currently a computing student so I rely won't up power (poss. Computer supply) power on my computer a lot for my studies and was hoping I could get some quick advice troubleshooting on here So here goes I ve had a problem with my computer recently it s been working fine Computer won't power up (poss. power supply) for a year or so with no problems and then one day i tried switching it on and nothing happened I tried once more and then the power short circuited I then had to turn the power back on from the mains switch The strange thing is my housemate had exactly the same problem and after searching for the answer he was told it was due to a static buildup and the solution was to take out components graphics card RAM e t c and put them back in I tried this and no luck I was thinking due to the short circuit there may be a problem with a fuse in the power supply other then that I m completely stumped and would appreciate any help given Many Thanks for all help received nbsp

A:Computer won't power up (poss. power supply)

Does it happen with any other appliances? as in does using the toaster while using the kettle While your mate is in the Electric shower, telly on, or ironing?

Possibly a static build up, it is possible, Wher are you situated??
What voltage are you on?

What is the make and model of your comp? is it the same as your friends?

is your machine custom built or is it a brand?
Answer a few of them and we will try to narrow it down 4 you..

Mean while if you could get your hands on a spare PSU that would be handy. And remember when dealing with PSU's alway leave them to sischarge for at least 24hrs,
the 3 D'S, Disconect, discharge, dismantle.
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Hello everyone - I have just assembled a new build It will not power up I need a suggestion to figure out if the problem is the case or the motherboard This is a mini-itx build power-up: power New or Build MB? no supply case's The case is New Build no power-up: case's power supply or MB? Linkworld LC - B This case comes with a volt watt external laptop-style power supply that plugs into the rear of the case just like New Build no power-up: case's power supply or MB? a laptop power supply plugs into a laptop - a barrel connector Inside this power connection connects to a power supply component that is not like a regular ATX power supply but is on a printed-circuit board New Build no power-up: case's power supply or MB? mounted on the case This has several capacitors and other stuff From that comes the -pin and -pin power supply lines for the motherboard I assume the -volt power supply for this external power supply unit is right since it came with the case It was watt The processor is an IBM t with TDP of watts Lower-powered CPUs can be put in a small so I assumed the power supply might be under-powered I ordered a -watt volt power supply with the right size barrel - and same polarity pos inside The MB is an ASRock H MV-ITX It is mini-itx form factor Still same problem Everything is connected correctly When I press the power-on button an external CD drive I have plugged-in spins up for a while But no power light comes on in the front of the case there are no POST beeps the fan for the CPU does not spin up No other signs of life So power is getting into the MB - the external CD drive is plugged into a USB socket in the rear panel of the MB After trying a watt and watt power supply I believe the problem cannot be the power supply cord Can it be that I have too little load I don t think so I plugged in another mm fan and an ol-fashion floppy drive just the power connection to add more load - same thing no power-up no POST nothing but the CD drive will spin up when I open-then-close it yet again So here is the help I need what else can I try -assuming the MB and case are fine is it more likely the case power supply is bad or the MB --Thanks nbsp

A:New Build no power-up: case's power supply or MB?

Well, I figured out the problem.
I am planning to re-do the older mini-itx system I have; it has gotten riddled with Trojan software for kids downloading games; it basically has been de-commissioned already.

So, I took the pico-psu power supply from that older computer, and hooked it up to the one I am making. Everything went perfectly.

So, I un-did that, removed the MB from case, disconnected the barrel-power connection from the case, unscrewed and removed the power supply that had been mounted in the case, put the pico-psu power supply back in place (I had to drill the hole for the barrel-connection out to be a little bigger since the pico-psu internal/external connection is threaded and held in place by nut with lock washer), and routed wires to be clear of cpu fan, screwed MB to stand-offs, and closed it all up.

now, everything is great. I like this linkworld case, but the power supply is worthless. I may try to get a few dollars back from the ebay vendor, to make me happy with a case that is less than what I should have gotten, but is working for me; I don't want to wait on returns, etc.
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Hey, got quite a problem with my laptop.. It's a Medion Erazer X7813, worked well for ~2 years.
I was doing a graphics card benchmark yesterday and it stopped in the middle of it(monitored temperature, it was at ~80 degrees Celsius when it turned off). No bluescreen or anything just off and I couldnt restart after that(no fans nothing). I thought it might be the power supply, so I tested it, but it was doing 19v when not plugged in, but when I plugged it in and unplugged it again it was at 1v. When testing I unintentionally shorted the power supply and it showed 1v after that just as it did after plugging it in, is it shorting inside the laptop? Could it be the battery or something more serious like the MB? Any ideas are welcome!

A:Laptop gets no power, power supply seems to be working

The charging circuits on the laptop motherboard may be shorted...
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Went to dinner left PC running Came back PC shut down Would not restart no power lights fans LEDs nada zip zilch We had a brown out a few days back I figured the power supply finally crapped out supply...still no power power!? new installed Tonight installed a new power supply Antec Smartpower w No installed new power supply...still no power!? change I push start button absolutely nothing I have checked a power at outlet OK b changed power cords original is installed new power supply...still no power!? cord OK but I notice when I insert the plug into the recepticle there is a spark Now I m not much of an electrician but I don t think there should be a spark for just plugging it in c I have plugged my backup PC this one into the same outlet on the surge protector and it s running fine soooo the problem is in the computer If I plug the power supply in shouldn t the PS fan run It doesn t Can there be something bad on the shudder mobo like maybe the start switch or something Also confusing me I have sata HD this new PS has power plugs for sata My old power supply only had the regular pin plug that I plugged into the sata HD yet it ran fine Do I need to use the sata plugs on the new PS Cripes I m so freakin computer impared Please need help this is my gamer PC and I m a BF junkie Thanks for viewing this thread AMD GA K NS ATI XT mb Turtle Beach Santa Cruz gig PC XP Home sp nbsp

A:installed new power supply...still no power!?

Is the LED lit on the MB? Try bypassing the front case switch by putting the blade of a small screwdriver across the pins on the MB that the switch connects to.
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I have a Delta DPS-150GB B Power Supply out of an Apple Macintosh Power Mac computer. I would like to use it as a 12v/5A power supply for my model train layout. I have a couple important questions:

1) I need to know the pin-outs of the connectors (1-4pin, 1-14pin, 1-5pin on ribbon wire), specifically which ones control start-up and various voltage outputs.

2) Being a Switching Power Supply, I think there must be a load on at least one of the output rails. Can I create this with a simple resistor of some sort? if so, how exactly what would I need to do.

I can email photo of the connectors if that would halp. I would appreciate any help. Thanks.

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Came home walked in and noticed my PC was off monitor was on speakers on modem everything on as if the power had blinked out for a sec and my system had shutdown No Supply, lights no to Power power I pressed the power button on the front and got nothing i checked the power supply s own power on off switch on the back and got nothing no light that its on or anything thought maybe it was the cable so i plugged it into my other pc and the No power to Power Supply, no lights cable No power to Power Supply, no lights works so i m thinking maybe the psu went bad or took a hit Im guessing i just need to replace it How difficult is it to replace it by yourself i ve never done that before and do you think that its the psu at fault I m thinking that if there is not power on light then something is wrong big with it my heat temps stay down between C and C at the highest Also can i replace it with just any other w power supply or does it need to be a specific kind company i bought it from online listed it as dual core certified w psu no mention of v rail or anything else i guess i can get that from them if they have it on file nbsp

A:No power to Power Supply, no lights

Well sounds like your power supply took a power surge. Well to start with i would try a power supply. Now about replacing the power supply cheap is not the best way to go, learned from experience. Here is my recommendation:
And for replacing a PSU not hard. If you need help removing it Post back i will walk you through step by step if need be.
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Would a 500W power supply power this

AMD Phenom II X4 955 Black Edition


Nvidia Geforce GTS450 1GB PNY

Gigabyte SKT-AM3 GA-880GM


DVD RW Drive

A:Would a 500W power supply power this

Hi QGamez,

I reckon a 500W wouldn't be enough but a 750W may be the right one. I had a look in a few forums and they had 650W & 750W etc but not 500W.

But wait for more input from the others and see what they have to say
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Somebody, please tell me what this is and what's it used for?

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My PC suddenly shut off and wouldn't turn on, but the mouse and motherboard lights were still on. A tech took my PC and ran some tests. I assumed that either my Power supply or my Motherboard was unfunctional but he called me back telling me that it was neither, and that the problem was coming from "a part" that gave power to the motherboard. The replacement of this part would cost $80.

Am I getting ripped off? What part could possibly cost $80 and isn't the Power supply?

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I have a Windows XP Home Edition SP computer GHz MB Ram GB HDD Last week I installed SP on my computer because I had SP and decided to upgrade A couple days later when I click on quot turn off quot my computer restarts NOT shutdown When I click on quot stand by quot The screen goes black then I get a quot blue screen quot Like in Windows But it Power Supply Power or Strip? s dark blue and stays up for only a second Then the computer resets The next day my computer stopped Power Supply or Power Strip? that but Power Supply or Power Strip? then As soon as I press the power button the TV in the living room goes all fuzzy I turn it off I remove the power strip thinking that it went bad I do use every plug but other power strips in the house are full too I plug it directly into the wall The restart stops still fuzzy I unplug ALL the connections in the back of my PC except the Power and monitor It stops Plug it all back in Put it in another outlet in my room Does it again Change HDD power cable motor could be causing this I finally realize that it s the TV tuner card The cable connection is already being split into ths I had a bad plug on the TV splitter so the fuzziness got fixed I put the power strip back on and the restart is going on again I tried on a outlet too Why is my computer restarting when I click quot Turn Off quot Is the quot shutdown exe quot corrupted nbsp

A:Power Supply or Power Strip?

Check your power management settings (and reinstall software if needed, from the manufacturer website). I've run across many problems with SP2 messing with power management settings...
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hey I have an interesting problem supply jumper power and power When I plug the atx power supply into my motherboard as soon as it makes contact the psu fan spins about times then power supply and power jumper stops which i suspect means its testing to see if it works or something But i have a computer out of the case and i power supply and power jumper might have made the fatal mistake of useing a paper clip to quot jump start quot the motherboard by contacting the power jumpers now whenever and metal contact is made paper clip the actual start mechanism anything it won t cut on Well me thinking i must have messed up the jumpers cut the psu green and red cord i double checked to make sure they were the power on cords and twisted them togeather and put electrical tape around them I know its not the best job but i was just testing a theory When I plug in the psu and its plugged into the motherboard the psu fan becomes turned on because of the twisted on wires and spins But the cpu fan and motherboard remain powerless I am wondering if i ve done something wrong or have screwed something up any help would be appreciated ps before the problems begain i installed the motherboard into a case because it was just components and i founnd a cheap case When I installed the motherboard I screwed metal screws into the contace points where the motherboard is supposed to rest I heard somewhere metal is bad for the bottoms of motherboards so that could be it thanks nbsp

A:power supply and power jumper

Disconnect External Power To The Wall Socket Before Messing Around In The Box!!!!!!!!!!!
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HP Palvilion m c Motherboard IPIBL-LA Berkeley http h www hp com ewfrf wc lc en amp lang en amp lc en amp product amp task N Power Supply DPS- ab- a http www itwinkle com hp posu html Hello all this is my power Is NO motherboard? it or supply POWER, first post First let me thank all NO POWER, Is it power supply or motherboard? for being here and sharing your vast knowledge My PC and power supply is above web-links included for more accurate description Also I have scoured this forum internet attempting to resolved and yes there is a ton of info The problem is the I cannot find specific details quot similar quot to my problem regarding how they determined the repair action other than replaced power or mobo So hopefully when this is resolved this will help someone with my similar problem - Problem gt PC will not turn-on just as if not plugged into power source -- Sypnopsis gt Nothing unusual happened as far as I know Shut-down PC for the evening as usual next day went to turn it on nothing - Troubleshooting accomplished -- Checked power outlet amp cords checked good -- Green light on back of power supply is steady green normal indication -- Removed power supply to test with multi-meter Strapped jumpered pins green wire with ground blk wire All appears normal everything is in range of specifications values below pin pin pin pin pin pin pin pin pin pin pin - pin pin pin -- Tested my power button wires for continuity on PC case properly shorts -- Reassemble everything still nothing -- Disassemble entire PC motherboard is sitting on cardboard box --- Items plugged into motherboard -pin atx plug and from NO POWER, Is it power supply or motherboard? power supply -pin plug volt from power supply gig ram stick CPU amp CPU fan - Goal gt power-on motherboard -- Tried shorting power button pins nothing -- Tried shorting reset pins nothing -- Jump-started NO POWER, Is it power supply or motherboard? atx plug with paper clip POWERS ON See link below for example http www youtube com watch v FCspIGgBV amp feature related Unfortunately unlike the youtube video when I remove the paper clip I lose power and back to square one - Back to the PS tested PS with strap jumper on when I remove the strap the ATX loses power through its plugs though the green light stays constant green There is no external on off switch on the power supply -- Should the power supply lose power once the strap is removed -- If so how does the power supply know to stay on -- Any help is much appreciated trying to determine if power supply is bad MOBO etc and if I can repair it Also I cannot swap items I do not have any additional parts laying around ADDITONAL NOTES - When powered on the mobo pwr-btn pins and the reset pins have voltage accross them volts dc pwr btn pins though has quot NO quot effect when shorted volts dc reset pins resets when shorted it works the way it should - Attached additional items to see if I could fully boot PC System Fan note will not boot without this fan plugged-in quot ERROR System Fan Has Failed Service PC to prevent damage to the System Press F to continue quot video card geforce gt hp pn- key board plugged into PS keyboard port mouse plugged into PS mouse port Hard drive When strapped I can boot competely up and log-on to desktop When I choose quot restart quot via windows soft button it resets properly When I choose quot shutdown quot it will shutdown but then I have to remove the strap and reset the cmos I get no display unless I reset the CMOS to boot up properly again I m guessing ultimately its the power supply Since the problem directs back to losing power The PC boots properly when I make the conditions right so that would most likely eliminate a motherboard or cpu problem What I don t understand nor can I find any info on is how does the power supply stay activate I m aware of the shorting of the power button pins on the mobo Probably thinking too much into it but the power supply seems to be working accept for the mystery quot no po... Read more

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Ok so i do know what the no Power and supply 100%, mobo are power problem is this is more about what i can do to use my computer until i can fix the problem Ill start off with what the problem is My computer wont turn on from the get go i knew the power supply was okay Power supply and mobo are 100%, no power because the mother board has a green light on it showing that its getting power of course just in case i tried putting a new supply in but there were no changes At first glance the mother board looked good No blown resistors or anything of that sort i sent it to a friend to check it out though once again just to be thorough and sure Finally after Power supply and mobo are 100%, no power hours of tedious searching i found the problem The chip that the power button plugs into has blown out Very happy thats all it is Now my question to all of you is is there anyway to bypass using that board so i can run my computer until i replace it if i just unplug the little board that the button is a part of the computer obviously does not turn on when i attach the computer to power and i dont know how i can trick it into turning on without having the use of the power button Any info would be greatly appreciated Thanks Ryan nbsp

A:Power supply and mobo are 100%, no power

There are some motherboards that have a power on button directly on the motherboard. I don't suppose you have one of those? There are some BIOS' that can enable the keyboard to power on the PC by pressing any key. I'm using one of them now. Of course, the problem with that is to get the PC started in the first place so you can change the BIOS setting (if it has that setting).

What motherboard do you have?
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hi guys as per one of my friend I could replace my memory RAM up to GB so I ve ordered Power Light Motherboard/Power 8300 AMBER Green XPS - Supply - Light a couple sticks of Kingston HyperX nbsp so I ve took slot and replaced GB Hynix RAM by GB HyperX Now I have a good old CPU that doesnt work plus it smell like burnt plastic with no apparent damage to XPS 8300 - AMBER Motherboard/Power Light - Green Power Supply Light the board or RAM nbsp Startup x BEEP No BIOS Motherboard Light Solid AmberBootup Light Flashing AmberPower Supply Light Solid Green I ve tried booting from nbsp a single RAM unit on slot one then slot two and nothing has changed anyone can help Motherboard Y MRGhttp www findlaptopdriver XPS 8300 - AMBER Motherboard/Power Light - Green Power Supply Light com specs- y mrg-dell Processor i Primary SSD Kingston HyperX Savage added Secondary Seagate TB TB added Barracuda New RAM nbsp ts HX C FK http www kingston com dataSheets HX C FK pdfOld RAM nbsp HMT U CFR C-H https www amazon com PC - - MHz-Hynix-HMT U CFR C-H -Unbuffered dp B BTRAS
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For the last two weeks every time I start my Dell INSPIRON E while using the power supply I am greeted with the following message quot The AC power adapter type cannot be determined Your system will operate slower and the battery will not charge Please cannot Supply power - AC type be determined....." "The adapter Power connect a Dell W AC adapter or higher for best system operation quot I press the F Key and everything works fine I ve read about this on other websites and most say it s a design Power Supply - "The AC power adapter type cannot be determined....." flaw in the power supply after the cord has been properly wound around the supply as designed Apparently a few of the cords internal wire strands Power Supply - "The AC power adapter type cannot be determined....." become broken and cause this message My computer is from June and shouldn t be having this issue so early or ever This seems like a flaw that should have created some type of manufacturers recall since so many people are having this issue I m of course out of warranty will Dell replace this free of charge nbsp

A:Power Supply - "The AC power adapter type cannot be determined....."

You are correct, the failure is due toloss of the power supply ID signal. Sometimes this happens because of strain on the plug, which breaks the signal wire. Some even are so severe that the insulation breaks away from the plug; this is due to rough handling. The other cause is one or more of the power socket solder connections to the system board become broken. This also is related to severe handling. I have seen one case where all three power connections and three of four mechanical connections were disconnected. If the power supply is bad, a replacement will cure the problem. If not, then the socket is bad, and this will require a system board replacement. If you are experienced, you can try to resolder the connections. I am experienced and was not able to get my daughter's E6000 to work by resoldered. More recent Dells are using a replacable power connection board which is a much cheaper repair.
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I just purchased a new Dell PC.  I now get this message when I turn on my speakers:
power surge on the USB port. Unknown USB device needs more power than the port can supply. I have no idea why or how to fix it. Can anyone help me?

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I have to buy a power supply for my desktop PC. Considering that I have to do it online, so I wont be able to see it, my broken one is an ATX 250W, Im not sure about the characteristics to look for, I think my PC has ATA connections, so:
- would it be ok to buy a power supply with SATA connections?
- Is there a standard shape for these power supply? My case is the most standard PC so nothing special
- What other characteristics should I look for?
- I have found one with these characteristics: ATX 400 W 20+4PIN PREMIER 12CM SILENT FAN TEMP.CONTR SATA PCI-E P6P

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Will a 20 pin ps work in place of a 24 pin If not, what will not work properly? Thanks! I plugged the 20 pin into the 24 socket and everything seemed to work but no graphics? The graphics card gets it's power from the motherboard so, could the missing 4 pins be why I have no graphics on the monitor?

A:power supply 20 pin vs 24

Hello p5200,

It's not recommended to use a 20 pin PSU cable on a 24 pin motherboard power connector. It would be recommended to update your PSU to one that has a 24 pin power cable.

All about the various PC power supply cables and connectors

You can plug a 20 pin cable into a 24 pin motherboard and it will work just fine. At least, it will for a while. They added those extra 4 pins for a reason. When you plug a 20 pin cable into a 24 pin connector you're not providing the extra current carrying capacity which may be needed by the motherboard. If your motherboard's current requirements are low enough then it will work properly with only a 20 pin power cabled plugged in. But if the motherboard draws enough current, then you can overheat the 20 pins you're using on the 24 pin connector.

Hope this helps,
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For a while now turning on my computer has been a chore So lately it has started taking more than one push of the start button to turn ot on Once it took over pushes of the button for it to fire up The button does not feel broken so maybe it s gotta be some thing else It does have a very Do power I new supply? short whirr sound like it wants to start but it stops and I push the button again m n S Do I new power supply? N CN MR Part number GN AAR ABA Tech Support Guy System Info Utility version OS Version Microsoft Windows Ultimate Service Pack bit Processor AMD Phenom tm Quad-Core Processor AMD Family Model Stepping Processor Count RAM Mb Graphics Card ATI Radeon HD Mb Hard Drives C Total - MB Free - MB Motherboard ASUSTeK Computer INC M A -M Antivirus Lavasoft Ad-Aware Disabled Do I new power supply? As suggested by adviser flavallee I am asking for thoughts and recommendations as to what brand and wattage if you Do I new power supply? all think that a power supply is warranted Thanks for all your help Ron nbsp

A:Do I new power supply?

For those of you who reply, his request is associated with this thread.

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Hi guys new here I m setting up a new pc sooo a few questions here I m planning on getting an Asus A XM-plus motheboard Amd X K cpu and Sapphire R GB video card so how much power supply would be enough - W would be an overkill Is all of this fully compatible Do I do supply here? need much power How I need a sound card modem or special cooling or something I How much power supply do I need here? already have gb Ram sticks and HDD don t really need DVD drive I m also thinking in between Antec V case and a lot cheaper LC Power Gaming b Air wing Midi how much quality difference is there in between these two Also how much improvement is there in between this card and my current one sapphire r gb Are there any parts that you would exchange for something else I m on a tight budget but I don t mind spending a few extra bucks if it be worth in the long run Thanks in advance nbsp

A:How much power supply do I need here?

Power supply: 500+ should be adequate. However, the quality is MUCH more important than the size rating. Look at a brand such as Sea Sonic.

Other hardware depends on your requirements. The onboard audio chipset should be fine in most uses, but it largely depends on your output device (ie: speakers or headphones).

I've not used with of those cases. A case is a matter of personal preference. I've used cheap generic models and high end models over the years. They all work fine. The difference is usually in options and features. My personal brand preference is Cooler Master. Good quality, and average to excellent features based on model.

Quite a bit of difference between those two cards.
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Hi. I just found out after three years of owning the Inspiron 560 that I could install a second hdd. I proceeded to install it but the clip that connects the hdd broke. I have the PC attached to the second clip. Can I repair the primary clip(not the data cable) or do I need a new PSU. Where do I buy a PSU for the Inspiron 560? Any suggestions will be appreciated. deanie44

A:power supply

If the SATA power connector is broken, you can use a power "Y" cable from the good SATA power connector for both hard drives. That is is cheaper than buying a new power supply.

Here is a sample of what you need, from CLICK ME

Although you won't need a new power supply with the adapter cable, if you have the full size case model 560 and not the 560S model, it uses a standard ATX style power supply. If its the compact case model 560S, a TFX style power supply will fit.
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I recently built a new computer and it has been running fine without any problems. Although, whenever I play games like BF4 or CSGO the exhaust fan at the back seems to slow down a bit and has a little bit of clicking. Is my power supply enough for these components?
Gigabyte R9 290 Windforce 3X
Intel core i7 4770 3.4 ghz
Asus Z87-C motherboard
8GB G-Skill RAM 1600Mhz
128GB SSD/640GB hard drive
700 Watt Cooler Master PSU
Zalman Z11 Case

A:Power supply not enough?

700 watts seems plenty to me
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i have had my power supply for around 4 months, but when i use asus probe to monitor temps and fan speed i get these values

cpu temp = 43c/ 109f
mb temp = 41c/105f
cpu fan = 4115
power fan = below threshold
chassis fan = below threshold

i have been having green/purple flickering while playing games recently and i have been told it is most likely a overheating problem, can anyone help me.

A:power supply fan

Open cpu, get rid of ALL dust in fans etcm with compressed air.


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Hi guys

My power supply on my PC died a few days ago. It's an 8 year old PC so I'm not lookin to spend too much. How do I know what power supply to get? I've go no idea where to start.


A:Need a new power supply

No matter how old the computer, I recommend never skimp on power supplies, they are the life blood of the whole system and can be used if/when you build a new system. I always recommend Seasonic, Corsair, Antec or XFX.
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I was given a computer that was not working, they said it just stopped, so I tested the power supply by jumping it and it did nothing. I had a lower wattage supply I tried and it still wouldn't start, although when I jumped it the fans started up. It had a 520 watt supply in it and I used a 250 watt to try it, would this affect it, or am I looking at another problem.

A:Power supply or?

If the 1st power supply failed, then there is a good possibility that when failure occurred it may have taken out the motherboard and/or other components.
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I recently purchased a computer that will not start.
As per the revcommendation,I checked all connections for loosening during shipping. i connected the unit to my keyboard monitor and mouse and power supply. When I press the switch,the LED Flickers and the cooling fans start. then everything shuts off .The seller tech rep syas it is the power supply and says to return it. could this also be a faulty switch? Please advise. Thank you


A:Power Supply

Was this a fully assembled PC or did you put it together? If it was assembled and is under warranty, then by all means return it - do not void the warranty.
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I bought the following PSU a few days ago its from a UK based website. When I recieved the PSU it said on the box that it was only to be used in the USA. Should I be concerned because the Volts in the UK and USA differ. Also on the back of the PSU it has only a on off swiitch and not one of thse red slide switch things, if you know what i mean. I've emailed the company about the prob, but have posted it here as well, for some more info.

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I am going to buy this graphics card:

I have this computer:
My power supply has an output of 250W, will that be enough to power my new graphics crad until I buy a new one, or will it not be enough? I haven't added any other hardware.

A:Will I Need A New Power Supply?

No way I would bet the minimum would be 350 watts.
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I own an Canon Optura 20 and live in the states. I'm originally from England and will be travelling back and forth over the years wanting to take my camera with me. What's the best way to charge my camera if I was over there? (taking into account the difference in the power supply) Could I just get the British version of the CA570 charger? would that be compatible with the American camera/battery?
Thanks for any response.

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My neighbor brought her laptop over its dead (HP Pavilion g series)I think maybe her charging brick is bad, can I try my charging brick (Asus G75) to see if its takes a charge. The numbers are different on the brick than hers will that make things worse ?

HP---input 100-240V 1.7A
output 18.5V 3.5A 65W

ASUS---- input 100-240V 2.25A
output 19V 9.5A ?W

I don't want to blow it up or fry it she is a nice neighbor and I like to keep it that way

A:Power Supply

That's not such a good idea. You are taking your chances.
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I just bought a 400W PSU about 6 months ago. I had to upgrade from a 240W when I upgraded my videocard and MB and CPU. My PC was making a noise like I had pushed the power switch. Once I replaced the PSU everything was fine. It would make this noise about every 30-60 seconds.

Now it is making hte same noise again, but only when I start a large application or game. I assume this is becuase at startup the programs need more power?

Does this mean my PSU is dying, I don;t think it is because it is not big enough. It has been fine for 6 months and I have not changed any of the hardware.

I did experience some unusually problems with McAfee auto-scan and had to disable it. This was just a few days ago before the noise(sounds like power flicker) started.

Any ideas? Where should I start?

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There are so many options nowadays with PSU's, I was wondering what are the best features to look for and what do they all mean?

Some examples:
ATX12V/ MicroATX
Active PFC
Passive PFC
Dual 12V

A:What to look for in a power supply

Active PFC

The preferable type of PFC is Active Power Factor Correction (Active PFC) since it provides more efficient power frequency. Because Active PFC uses a circuit to correct power factor, Active PFC is able to generate a theoretical power factor of over 95%. Active Power Factor Correction also markedly diminishes total harmonics, automatically corrects for AC input voltage, and is capable of a full range of input voltage. Since Active PFC is the more complex method of Power Factor Correction, it is more expensive to produce an Active PFC power supply.

Passive PFC

The most common type of PFC is Passive Power Factor Correction (Passive PFC). Passive PFC uses a capacitive filter at the AC input to correct poor power factor. Passive PFC may be affected when environmental vibration occurs. Passive PFC requires that the AC input voltage be set manually. Passive PFC also does not use the full energy potential of the AC line.

As for the rest or your question, go HERE and scoll down to this question. "Q. What is the difference between ATX, ATX12V, EPS12V, SFX and SFX12V power supply?"

You might also want to take a look at this excellent article on psu`s. The psu thread.

Regards Howard :grinthumb
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i got 1st my computer in 98, it was a P2 233mhz, 4 gig HD, 32 mb sdram, win 95, 250 watt PS and so on. ive been upgrading it myself ever since (see my spec in signature). the one thing i havent replaced has been my power supply, i suspect its starting to become insufficent. so i figured, what the heck, i should get a new power supply. im looking for the cheapest 400 watt out there, any suggestions?

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How do I locate my power supply?
I'm thinking about upgrading my Video Card to an nVidia GeForce 6800 GT.
I have a Dell 8200, 3.0 Ghz CPU, 1GB RAM, FX 5200 GPU.
I tried looking in device manager but I never saw a component called 'power supply' or something like that.
Thank you,

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hi i have Power supply an amd athlon x processor at ghz with gb of ram im getting an ti because for the price i can get a used but Power supply really good condition on for around bucks which is an incredible deal i just want to be able to play games like counterstrike global offense and some of the newer games coming out it doesnt need to be at ultra setting so i firgured this a good choice for the price but no i need a psu because all i got is an offbrand w in there now tell me what you guys think about the choiices i have so far or if u got something better http www ebay com itm Ultra-X -AT l-Intel-AMD- hash item ea e dc http www ebay com itm Black- -W pt LH DefaultDomain amp hash item c b d http www ebay com itm Thermaltake U-OCZGXS - hash item a a http www ebay com itm OCZ-Technol U-OCZGXS - hash item a a http www ebay com itm Thermaltake sFire-Ready- hash item cffa f http www ebay com itm CORSAIR-CX- CMPSU- CX- hash item a nbsp

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Hey guys i been having many problems when i try to play some games they all been crashing lately and everything is pointing to my PSU.

So i need to know if my Psu can hold all my hardware while playing heavy games on High settings, or if theres any software that can help me solving that. (srry for bad english)

My Specs:

OS:Windows 7 Ultimate x64

CPU: Intel Core I5-3330 3.00 ghz

Motherboard: H61M-A/BR

Memory: DDR3 1333mhz 8GB

Graphics Card: GTX 760

Sound: Onboard

Monitor(s) Displays: Samsumg B1930N

Hard Drives: an old 320GB Samsumg

PSU: Thermaltake Smart 550W

Cooling: 3 Cooling fans

Keyboard: A very cheap one

Mouse: Rappo V2

A:Need help with my power supply

Your graphics card is rated at 170 watts.

I think that Thermaltake is made by Channelwell. I couldn't find a review on it, but I've seen bad reviews for some Thermaltakes.

A 550 watt supply is certainly enough if it's a quality unit. I'd be suspicious of that PSU, but I can't find anything definitive about it.


Here's a review

which has this comment:

Bottom line: a no-nonsense power supply that is capable of powering most mid-range PCs for today and tomorrow.

The Good

Solid performance
Nice cabling
Attractive price

The Bad

Voltage regulation droops at extreme load

Here's another review:


3 Year Warranty
Good voltage regulation
Good modular cables
Relatively quiet
High Efficiency


Disappointing ripple suppression relative to competition
Poor Crossload performance – voltage droop and high ripple
Could benefit from more PCIe connectors
Read page 10 and make your own conclusions.
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Hey there, so, recently I purchased this computer

Shortly after purchasing it I installed dual channel sticks of 512 Corsair memory (for a total of 1 gig plus the existing). I also installed a Geforce 6600 GT, a medium performance graphics card. So my question is this, do I need more than the 300 watt power supply that came with the computer? Also my upgrades are not finished I am also installing a 24 bit audio card and possibly a few other things as well. So how much power do you guys think I will need?

A:Do I need a better power supply?

YES, with a fast cpu like that, and all the goodies your're throwing in, i would highly recommend a new one, try around 450-500 watts for flexibility. Make sure you dont buy a crappy generic brand either, you wouldn't want to risk frying anything.
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alright i found 3 psu's that I'm stuck between. I wanna buy it tongith before I go to sleep. Heres what I got.
Ultra X-finity 600 Watt

Cooler Master 650 Watt

Coolmax 600 watt

Its down to those 3. They give me the wattage I need (a 500 or 550 just wont suffice for my projected full upgrade)
I CANT SPEND MORE THAN THE MOST EXPENSIVE ONE I LISTED. DO NOT give me links with PSU's more than that unless there are rebates.

Thank you guys.


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A comp tech recently replaced my 200W power supply in my HP Pavilion tower. I asked him what he replaced it with and he said "A better one." I don't know what the wattage is on the new unit, but since then, I notice that the screen desktop is slower responding (opening programs from desktop icons) and also Windows Explorer (not Internet Explorer) is also slow to copy, move, delete or open folders and files. However, once I get a program to open, it runs normally. I've tried all the usual tweaks, even a system restore. I also tried to reset the setting priority for explorer.exe to "high" through Task Manager, but it always resets itself back to "normal". Nothing seems to improve the slow performance. I wanted to know if replacing the power supply could have anything to do with slowing the desktop and explorer responses?

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Sounds like the power supply has gone on hubby's computer, but I just wanted to see what you folks think. Smelled something burning a minute or two after turning it on - that unmistakable electrical smell. Computer shut off, and there's no response when you try to turn it on. It's an EMachine T2885. It's about four years old.

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Hi guys; I once had to put a battery into my computer had a lot of help from Gateway to do so.. But I don't remember anything about it now? Does it just go, does it take time and slow down your machine? When you replace it do you lose everything on your machine?Is there a test you can do to see if you are losing power? Any help Thanks Ellen

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OK i was wondering if any of you could help me out.
I currently have a 230v power supply for my pc. would i need to upgrade my power supply to support this hardware:

ATI Radeon 9600XT
2GB Ram
Pentium 4 3.0GHz HT

i do get VPU errors alot and lag in games. I was told getting a better power supply would resolve this.

A:New Power Supply

Check this site: put in your specs and it will tell you what you need!!
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I am looking to replace my power supply and was going to go with an Antec Smart Power 2.0 but when reviewing it i noticed that it does not have a -.5V wire/input. How can I tell if my motherboard needs a -.5V?

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I recently bought a new power supply for my sony vaio vgc ra840g the old supply has a 3 pin connector with blue white black wires there is --12 on the blue black is ground white is all over the place -3v to 5v the new supply don't have this connector I tried to splice into new supply but not sure what voltage to hook to white wire.turned on computer without plugged in screen says power fan abnormal. Any advice?


A:power supply

Just the obvious, find and use the correct power supply.
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Ok so I had a messed up psu in my pc for a while that was pushing 1.1power I got new psu that was the same brand new and my post screen timing was still slow still when I got the new psu is it possible to messup the voltage capasity on the mobo a bit if a messed psu has been in for a while maybe bust a capasitor

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I have a 1000W power supply, and I'm wondering if I added an additional nVidia 780 Ti if I would have enough power? Yes, I have already tried a couple of those online power calculators but I got a wide range of responses so I'm a bit confused.

Highlights of my PC...

i7-4770K @ 3.5 GHz (not OC as of now)
Nvidia 780 Ti video card
2 x 8 GB DDR3 RAM
1 SSD Drive
3 USB peripherals

Anything other info I can provide I'd be more than willing

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My computer was shut off last night about 6:30PM and left off until about 3AM this morning. It worked fine until this morning and it wouldn't turn on at all. Later on in the day I tried it again and the same thing. I checked the power wire on the back of the computer to make sure it wasn't loose, it was fine, I tried different power outlets, that wasn't it, I even tried a completely different power cable, and it still didn't work. The only thing I can think is that the power supply just quit working. Can anything else cause it to just not switch on?


A:Did the power supply go bad?

No fans >lights ect And all connections are good it is probly the power supply or board. Have you tried changing the power cable?Check the reset on back of the pc
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hey fellas/fellaess's
Was hoping for some advice, my mate has a dell pentium 4 and is running with 128mb of Ram so I suggested he upgraded it

I offered to do it, so bought a 512mb from ebuyer, unplugged the power supply pressed the on/off button to discharge any electric still left and then removed the old ram and installed the new one, when I switched the computer back on there was nothing its dead as tank tops, does anybody know what has happened? wheather its the motherboard or the power supply?

A friend in work said if you short out the green and black cables on the 20 pin plug from the power suppy, it should start the power supply up, but it does not,ive checked the on/off button and it appears to be working?

anybody got a clue what may have happened

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hi every body
i have my old power supply of p3
it has a problem i couldn't solve
there is no o/p on the terminals
some times it works and most of the time it doesn't
i want to use it in supplying my electronics circuit
so i want to repair it
it's type is CODEGEN 250W model:250x
i searched for catalogs and data sheets for it so i can trace the voltage nodes and measure them and see how difference they are from the catalogs and data sheets o/p
can any body help me ??!!!

A:need help in power supply

First of all, what is O/P?

Secondly, about the only part in a power supply that is user replaceable is the fan, unless you are extremely skilled in electronics.

If it's an old power supply, in my opinion you are just better offer replacing the unit that trying to repair.
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I have the following computer parts below and I have no idea how many watts I need to be able to have a stable power supply for my computer.

Intel Core i7-4790K Processor (8M Cache, up to 4.40 GHz) (BX80646I74790K)

EVGA G-SYNC Support GeForce GTX 770 DUAL SuperClocked 4GB 256-bit GDDR5 PCI Express 3.0 SLI Support Video Card 04G-P4-3774-KR

WD Blue 1 TB Desktop Hard Drive: 3.5 Inch, 7200 RPM, SATA 6 Gb/s, 64 MB Cache - WD10EZEX

Samsung Electronics 840 EVO-Series 250GB 2.5-Inch SATA III Single Unit Version Internal Solid State Drive MZ-7TE250BW

Asus 24x DVD-RW Serial-ATA Internal OEM Optical Drive DRW-24B1ST (Black)

Gigabyte GA-Z97X-UD5H LGA 1150 Z97 with Killer E2200 and Intel Gaming Networking SATA Express M.2 SSD ATX Motherboard

Those are all my computer parts I assumed that a corsair HX650 would supply enough power to these parts to run the computer fluently. But I have no idea how much I need.

A:Power supply

Approximately 413 watts, so the corsair HX650 should be fine.
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So I had put my computer to sleep before work today I came home and couldn't get it to quot wake up quot So I powered it down with the button on the front However now it will not turn back on It worked fine yesterday I played some D and surfed the web Tonight after work nothing So I laid it down and opened the case and the green LED indicating supply? power Bad power is ON LIT UP on both my MOBO and my power supply However hitting the power button gets nothing no fans no blinks beeps etc So I completely disconnected my tower and took both Bad power supply? sides and the front off and checked every connection Twice then I booted my Gf's desktop and started surfing I stumbled across a few different articles How To Fix a Computer That Won't Turn On Now Bad power supply? I don't know my thought is that my power supply is bad and is only sending enough juice to signal its got power but not enough to boot but I don't really know and that's why im on here asking for youre help Thanks guys

A:Bad power supply?

I preach having a spare power supply to all my clients.

You should purchase a replacement anyway. Go for a Corsair with an 80+ rating with enough wattage (I'm thinking you need 800 to safely work with the gpu) to satisfy your needs. Swap out the questionable existing psu; see if that's it. Don't try to be frugal with those. Corsair, Seasonic, and Antec are the favorites with we hardware geeks.
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Hi All, I've got a fan on a power supply making a racket on start up! It's an older machine, 750mghz. Is it possible to replace the fan, or is it necessary to replace the entire power supply?
Thanks, Ynotwilly

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During a recent thunderstorm I was not using my computer but heard a pop noise Since I wasn t using the computer it was Hello Thanks. help. Everyone power need & supply I in screen saver mode which is a blank screen I went to the computer shortly after and it had no power It is connected to a surge protector along with my printer desk lamp and clock The computer had no power at all The printer desk lamp and clock all worked fine I first replaced Hello Everyone & Thanks. I need power supply help. the power cord connecting it Hello Everyone & Thanks. I need power supply help. directly into the wall power socket Still wouldn t turn on Next I removed the power supply and took it to a computer repair shop for testing The technician said it worked perfectly I reconnected the power supply making sure to secure the connections properly Still wouldn t turn on I did notice that when I reconnected the power supply and flipped the power switch a green light on the motherboard beside the -pin connector the power supply connects too turned on But the fans would not turn on the power supply or the fans used to cool the chip Can anyone suggest what I should test next or what may be the culprit I see no indication on the motherboard that it has been fried by a lightning strike Thank you in advance and thanks for the opportunity to search for help in this forum nbsp

A:Hello Everyone & Thanks. I need power supply help.

If it has made a pop sound then something has definitely blown, it can be a long winded process to figure out exactly what has gone wrong.

The best thing to do would be to remove all but the bare essentials and see if it will boot. Remove hard drive, all optical drives (cd, dvd drives), all cards bar the graphics , and have only 1 memory stick if you have more than 1 that is.

Let me know if you have any joy.
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I have a HP Pavilion A610Y, and it wont boot. I just plug it in, and It sort of "clicks" (i am sure its not the hard drive). The HDD light blinks every second, along with the power supply light on the back. The CPU fan doesnt start, the system and power supply fans dont start either. The powre supply fan "twitches" and it seems like the system is in some kind of loop. I called the tech support, and they told me I needed another power supply. This is a fairly new computer though... (1 1/2 years). It doesnt go to the post screen, and no display on the monitor... I think it could just be a jumper for the power button or something similar.... please someone tell me what is going on

A:Power supply??

edit: here are the specs for it:
2.6 GHZ Intel P4 Procesor
80 GB Seagate HDD
Intel Extreme Graphics 82845G Chipset
MSI Motherboard
Realtek AC'97 Audio
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I' m not sure if this is the right place to put this but, I can't seem to find the P/S requirement for this video card, do any of you happen to know?

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hi i was wondering if anyone can help me with this question i have a just pc p dfsata watt power supply and i m wondering if my going bad? is supply power its going bad i haven t had any rebooting problems or whatever but i m running my abitEQ and my and voltages are all below the normal during idle i print screened the the graphs from the abitEQ http www angelfire com vt djfoolio images abitEQ txt here are the specs for the psu FEATURE Complies with ATX PFC optional V Standby at A V Remote sensing Energy Star is my power supply going bad? Green Power Vac switch-able New for ATX V as Compared with ATX Power Supply PS Form Factor L W H mm Electrical Specification Input Input range Vac or Vac Frequency Hz Input current A A for Vac Efficiency gt at full load nominal line is my power supply going bad? Inrush current A A for V Vac Output Max W Hold up time gt ms at full load nominal line Rise time lt ms at full load nominal line Over voltage protection V V V Over power protection - Short circuit Latch Off Output Voltage Regulation Min Load Max Load Ripple V V - A A mV V V - A A mV V - V - A A mV V - V - A A mV V V - A A mV V Vsb - A A mV Combined V and V rail shall not exceed W Total power shall not exceed W any feedback greatly appreciated thanks nbsp

A:is my power supply going bad?

Those voltages look like they are right on the mark. They are going to dip and dive a little bit. That's to be expected. If there was serious sagging or something you might have something to worry about.
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Hello! I've problem with my PC. My Power Supply overheated and now I'm using another.
PC restarted rarely then often and now I can turn on PC for 3 sec. Problem is: this new Power Supply starts do the same thing. I don't why. Can someone please help?

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got home tonight hit power button got nothing.hit power button a few more times finally i see a faint blue light on front and hear fans try to start and then shut off.look insde and see motherboard has two lights on so i figure its getting power.try again hit button a few more times it powers up and then dies 10 minutes later.unplug pc now and went out for three hours came back tried again and it started up and is now running for about a hour with no problems.i see all fans running and no odd noises.any ideas thanks

A:possible bad power supply?

Hello BLK depending on how confident you are and if you have a dektop more to the point (no specs mate) try this

PSU - Jump Start

then Troubleshooting Windows 7 Failure to Boot
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Okay I was reading through the forums earlier then left computer still on to make a store run I get home about minutes later put my groceries away then head to my computer It hit the mouse and keyboard it doesn't respond at first then it pops up literally I supply out Power went suddenly see smoke look right to my tower and see a very light amount of smoke rolling out of the case I instantly remove the power and take the computer apart I thought oh did my motherboard fry I check everything after a complete disassembly and see no visible damage or burns any where I recheck the motherboard again everything is normal I then carefully look at the power supply and give it a sniff yep there is the culprit a light burnt smell I don't have the best smell so I missed it at first I then unplug all the modular cables the pci express pin has a pin that came out when disconnecting and looks slightly black Did it take out my card too I wonder I took apart my spare computer removed the psu and benched it on my Power supply went out rig Powers right up no issue I didn't hook up the video card as the spare PSU isn't powerful enough I bought everything at fry's in Feb can I take the PSU back there or would I have to go through corsair Do you think my vid card is gone It has no visible damage and doesn't smell burnt I just want to cry please give me any advice on whether I might have lost Power supply went out the card too

A:Power supply went out

I would contact Fry's in the first instance to see what they say. Can you phone the branch where you got it from? As regards the graphics card, it's hard to say. It does, however, seem as it could indirectly be the cause of the PSU failure, given that the 6-pin connector had a pin failure. More than likely, this was one of the yellow wires (12V), meaning all the load was placed on the other 12V wires and thus potentially exceeding the power capacity on that/those line(s).
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hey guys i need new power supply greater than W I currently Which I Supply buy? should Power have W which is not that good because I can t run my cpu on full speed Should I go for generic one which is cheap its only bucks What do u guys think I also looked for quot Which Power Supply should I buy? OptiMax quot which is W and only for bucks Is that better than generic Should I be concerned about the volts or rails I don t know anything about powersupplies please help my Which Power Supply should I buy? specs Operating System Windows XP Professional Sp installed Case NETLINK IN W ATX CASE W FRONT USB PORT P READY Motherboard ASUS A V SOCKETA KT DUAL DDR AGP PCI SATA SOUND LAN MOTHERBOARD CPU AMD ATHLON XP K FSB SOCKET A RETAIL BOX running at CPU Heatsink VANTEC AEROFLOW SOCKETA cpu cooler TMD RPM CFM Memory GB PC DDR SAMSUNG RAM Video Card ABITR - CDT RADEON MB DDR AGP X Hard Drives X WD CAVIAR GB INT ATA HD LP MS MB RPM OEM cASE FANS FANS INFLOW OUTFLOW thanks guys nbsp

A:Which Power Supply should I buy?

U dont need a high end one
buy one for around 60$ from antec, enermax or viewsonic
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i'm running about 6-7 usb devices scanner, printer, web cam, palm connectio, cell connection, keyboards, mouse, attached to a
4 connector hub. and my keybrd also has 2 other usb presently
in use.

i'm running win x/p pro amd athlon xp 2gig 256mb ram pc133
266 fsb. with a 250watt pwr sup... should it get one with more

A:power supply

A higher wattage ps could not hurt if you want to replace your unit. If your computer is stable and running with no problems, I would leave it alone. If you do decide to get a more powerful ps, go with a good quality unit such as one made by Antec, Enlight, or Enermax. Stay away from no name units or units made by foxcon / deer even though they are cheaper. Cheap ps cause a lot of problems. With ps, quality is more important than wattage.
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Just read about another fella's problem with freezing and how he discovered his power supply wasn't what it was cracked up to be.

Perhaps that IS my problem after all. Here is what I have in the way of a Power Supply

Power Win
Model 450 ATXE
Max output 220 W all output is Extend to 450 W Max

Here is what it is powering
Asus A7V333 MB
Athelon 1400 XP
Radeon 9600 Pro Vid card
Soundblaster Live Vid Card
Network card
WD 120 Gb hard drive
1.4 floppy
several case fans

If this is likely the problem of my crash/reboot crash to desktop and screen freeze problem then how about the names of a few good brands of Power Supplys and a recommendation for how big to get it to allow for some additional upgrades in days to come. This computer is for gaming, not extreme but
Max Payne 2
Colin McRae 3

you get the idea.


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i wanted to know if Antec Neo HE430 High Efficiency 430W ATX12V V2.2 power supply is compatible with 8800gts and olso what are the dimensions of the product.