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PC sometimes turns on, sometimes not

Q: PC sometimes turns on, sometimes not

My problem with a pc is that sometimes it powers up sometimes it doesn't. Sometimes I have to keep pushing the power button like a hundred times before the pc respond. On some days it only takes a few attempts to power it up. Actually this is my neighbor's pc -- in fact, two of them exactly the same make on the hardwares (power supply, motherboard, casing, cpu, fan, memory, etc.) and both have the same problem. They are clones by the way. Anybody who can help me please?

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Preferred Solution: PC sometimes turns on, sometimes not

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After getting a couple blue screens I am having the following issue When I turn my computer on the fans and drives all start up After approx seconds the computer shuts itself off After another seconds the computer turns itself back on again This time it stays on but i have no monitor output I don t hear a beep video Computer on has turns then turns no output off back on, turns but which tells me it is probably not posting I have read a few other threads that have a similar issue but not the same I am thinking it is either the mobo GPU or PSU I would like any guidance and assistance that you guys can give me on this specifically what i should look at first and how to diagnose Thanks system specs below ASUS P Q Pro ATX Intel Motherboard Intel Core Duo E GHz LGA W Dual-Core Processor EVGA GeForce GTX Core -P - -AR Video Card Antec EA W Power Supply OCZ GB x GB -Pin DDR PC Dual Channel Kit Memory nbsp

A:Computer turns on, turns off then turns back on but has no video output

Motherboard Short

I have helped somebody who had a similar issue and it was the motherboard being shorted out by the case. We took the motherboard out of the case and it booted up just fine. Something you might want to try before purchasing new components.
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A:External DVD CDRW Drive turns off, turns on, turns off...etc.

Did the unit ship with drivers? ?
It also might be a cable issue. Inspect that cable or try a new one and or another USB port. If you have it on the front of the case try it on a rear USB port. I've seen machines where the front ports carried less power than the rear ones.

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Hi I m having trouble with two of my desktops Desktop Problem When all cords and such are plugged in I press the power button The desktop turns on for about - seconds and then HELP! restarts turns repeatedly, black turns on to on and screen Desktop other restarts The bios doesn t flash the os doesn t boot As far as I can tell the desktop restarts indefinitely Any ideas what s going on here --Desktop Type HP Pavilion a W I found someone with a similar problem here Desktop Problem HELP! Desktop turns on and restarts repeatedly, other turns on to black screen I bought some M Dust Remover a few days ago I disconnected power along with everything else from a desktop of mine Pulled the cover off and started blowing the dust out of the case I put everything back together plugged it in and the desktop doesn t work It boots to a blank screen with the the power and hard drive led s stuck on on the front of the desktop The led on the back of the power supply turns on I can hear the hard drive spin up it detects the cd dvd drives floppy drive and then just hangs with the led s stuck on Anyone have an idea what might be going on here --Desktop Type Compaq Presario S NX Thanks for the help I m hoping to get atleast one of these back online w o buying a whole new desktop -Chris nbsp

A:HELP! Desktop turns on and restarts repeatedly, other turns on to black screen


Desktop 1:

Do you see anything on your screen at all while this is happening?

Have you tried to press the setup key to see if the BIOS will come up and make changes?

Do you have any USB devices (other than keyboard or mouse) hooked up? If so, try disconnecting them and see if it will at least POST or attempt to go into the OS.

WARNING: Before checking the capacitors, disconnect the power cord on your system and press & hold the POWER button to allow the power to discharge! Also, you should always ground yourself before touching computer components to prevent static discharge!

Just FYI, some of the motherboards in this series of HP’s have issues with the capacitors.

You should take a look at the capacitors to see if the tops of them are raised or discolored. Also, if you put your finger on the top of the capacitors, they should feel as if they are INDENTED and not flush or raised. Raising or discoloration (up to and including a black tar looking substance on the tops indicate a leaking capacitor).

Desktop 2:

Any POST sounds (beeps) produced at all?

Have you tried the monitor from Desktop 1 on this one?

Anything at all displayed on the monitor, to include CHECK CABLE message?

Recommendation: Open the case again and ensure that all the cards, memory, drive cables and so forth are all connect properly and not loose or dislodged.

Do you know how to RESET your BIOS to default using the onboard jumpers?

Here is a detailed link on troubleshooting this issue:

Thanks and keep us up-to-date!


Found another good link:
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People were saying heatsink but I have tried it on 2, one is the ALK-800A, then some CoolerMaster one. I have to admit the CoolerMaster was originally from my 2100+ setup but still, it's all copper.

I do notice when I remove the CPU, it stays turned on. I know pretty sure this CPU works as I tested like hours before I put it in my brothers. Cant do that now since it was a quite a drive back home from college.

Jumpers? Settings? Anything?

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A:My comp turns on for 5seconds and turns off or dosnt turn on at all

Have you tried checking on the fan/ ventilation? i use to have this problem with my P3. fan was jam with debris/ dust. when i boot up, it was fine, once i go in to window it freeze. After i got the fan moving (cleaning the dust) it works fine.

Hope it works for you.

Oh, Zenosincks mght have a point there too. Thought my experience was on the CPU. Cheers,
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I HAVE READ OTHER SIMILAR THREADS ------ My PC actually has the fans turns few shuts after on off seconds, PC retarded, back turns lights AND can t even get anywhere on the BIOS gb ram GT GHz Intel Pentium D gb HD CD ROM Foxconn P A mobo My mom took my PC away from me I got it back and it is retarded now I start the PC the fans come on lights are all good then PC turns retarded, shuts off after few seconds, turns back on about - seconds it shuts off and then comes back on by itself When I turn the power on the monitor does not show anything at all I have tried many of different things Different PSU problem is not the PSU D C the CD ROM HD so it can t be one of those as PC turns retarded, shuts off after few seconds, turns back on a failure stick of RAM my memory is fine Checked ALL of my cables they are connected properly checked many of times unconnected then reconnected alot Replaced the grease between heat sink CPU can t be my CPU or overheating problem Heat sink Fan is properly mounted not loose at all and is flat All of the aluminum capacitors on the mother board are perfectly fine not leaking and PC turns retarded, shuts off after few seconds, turns back on are on proper Reset the mother board a few times well thats MOST of the stuff I have done there is probably more but I can t think of what else I have tried at the moment And BTW can t access BIOS so don t ask if I can get into it Any help would be appreciated nbsp

A:PC turns retarded, shuts off after few seconds, turns back on

Reset the mother board a few times....Click to expand...

Do you mean you have tried resetting the bios jumper, on the Motherboard?
If not do that.

Also, have you tried disconnecting all HDD; Floppy; CD data cables (from the motherboard end (actually I'd do case fan too and front USB connection to motherboard)
If this works, you will need to put one back in at a time, until you find the problem

Usually this fault is related to faulty Ram or CPU
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Referring to a Toshiba Tecra 9100, model no: PT910E-602SF-EN

The power button normally doesn?t turn it on at all, though occasionally it boots up normally, starts to load windows, then always cuts out after 5-15 seconds anyway.

It still charges up the batteries fine, but won?t turn on. I?ve checked the ram, hard-drive, and I re-set the bios to defaults - nothing stops it from cutting out if you can get it to turn on.

Any ideas what could be the problem? Any help appreciated, it?s the second time one I?ve had - the same problem last time!


A:Tecra 9100 turns on intermittently, and turns off after 10-15 seconds


Have you already tried cleaning the fan? Maybe a lot of dust is blocking the fan so the notebook can?t start and turns off itself due a higher temperature. It would be worth a try cleaning it.

But in my opinion you have everything done what you can do and it looks like a mainboard malfunction. If cleaning the fan doesn?t help I think the mainboard is defective or something else. If you are familiar with notebook disassembling you can try to repair it yourself with second hand parts. Otherwise it?s time for a new notebook I think?
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My friends computer turns on for 5 seconds and turns off and during that 5 seconds preiod the computer makes a weird noise like beping sound.
His computer is Dell and its XP iam affarid i dont have much of his computers specs. If any one can suggest how he could solve it.

thank you for reading and helping

A:my friends computer turns on for 5 seconds and turns off again automaticly plz help
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My computer turns off then pressed again and turns on fine. This maybe due i went cheap and got a psu with case but i believe it needs to warm up for it to turn on.

Thanks for the help!

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So, I installed Vista yesterday and it was working like a charm and last night I turned the computer off.

I woke up this morning, pressed the power button, lights/fans/computer came on for a few seconds (3 seconds approximately) and then the computer just shut off instantly, then another 3 secondsish later it turned back on and did the same thing, and it keeps doing it.
The only way I could fix it was by unplugging the power cable and turning off the switch at the power socket, I thought it may was a one-off thing.

I left the computer on, got back about 6 hours later and the computer was off (nobody turned it off, no power blackouts etc), I turned it on and it did the same thing. So I had to turn it off at the power etc and it boots up fine and it works.

This wasn't happening until I installed Vista.

Thanks in advance.

A:Computer turns on for a few seconds then turns off [loop]

I just realised, I haven't been shutting the computer down, just been clicking the power button in the Start Menu (which I have just realised isn't shut down - hovered over it: Keeps your session in memory and puts the computer in a low-power state so that you can quickly resume working). I'm fair sure this is "Sleep" (Vista noob).
I just went into Power Options and saw that Sleep was set to 1 hour, so I'm assuming:

* Last night I put my computer into sleep
* Today it went into sleep by itself (after 1 hour)

Therefore it's a problem with the sleep mode?
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so i turn her on an the fan starts for about 3 seconds the lights
turn on too but then she turns off the screen stays black because
it turns off so quick has anybody had this issue before ?Im going
to take her apart and make sure everything is ok inside but im allways
looking for advised.

Thanks for any help in advanced
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A:Firewall turns off and upon startup and then turns back on

That's normal, in my experience.

Not just with Windows firewall but any other firewall I've played with...the network connection is the last line of system defense when the system boots.

The firewall won't allow contact with the Internet...until the system is totally setup and out of danger. The firewall activates (along with the other startup items), then the network connection is made.

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Seems I have the same issues as "someonedying" had,

here's my spec.

CPU - Intel Core i5 760 - LGA1156
RAM - 2pcs of Corsair Dual-Channel DDR3 2GB
VidCard - NVIDIA GeForce GTX 470
PSU - Fortron/FSP Everest 80Plus 800

when I turn my computer on, all the lights, the fans together with the MoBo lights turns on for 1 second, then it turns off for 3-4 seconds then turns on again until the OS loads..

when I restart my computer, this doesn't happen anymore.. It only occur when I completely turn the computer and UPS off..

I bought this system a month ago. I have to option to bring this to the shop where I bought it but I want to know what the possible issues are.. Most of computer shops here in our country replaces some parts w/o the owner's knowledge.. >.<

Please help.. Thanks =)

A:My PC, turns off for 3 seconds after turning on then turns back on

Seriously, I'd take this back to the shop and have them fix this at their expense. I would also take note of the parts you have now and compare them when it is returned.
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Immediatlty after I turn on my laptop, it turns off and turns on again after few seconds with no apparent reason.

Should I worry about this?
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A:Lan Card Turns off When computer turns on?!

Make and model of computer?
Make and model of the LAN card?

What, if any, error messages are you getting?
Have you gone into Properties for the LAN card to see if it has any diagnostics?
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I leave my computer on for a long times like 1-4 weeks at a time so that may be part of the problem but it doesn't get really hot (it has 7 fans so yea) but back to the problem when its started i turned it on and i wasn't looking and then it turned off (still not looking) and it turned off again and then it on (looking this time) and i saw it booting up then i saw it froze at the windows 7 logo and then either i turned it off or it turned its self off then. Now when i turn it on it turns its self off after few seconds. but when i leave it alone for a day it stays on for 5-15 seconds.
If you can please help me!
my specs:

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A:laptop turns on for 1-2 seconds then turns off

Welcome nabbed_clones.

Could you mention the make and model of your laptop please and explain what the odd beeping noise is (e.g., is it a quick one beep noise, or long beep noise, or many different beeps?) Any other sounds?

(Have you tried turning on the laptop with the mains power plugged in and the battery out?).
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any ideas on how i can fix this?

i've tried manually reducing the clocks on my cpu even though they were already at stock clocks and that didnt work

system specs:
windows 7 ultimate 64bit
intel core 2 quad q6600 @ 2.4ghz standard clocks
4gb ddr2-800 ram
ati hd 4760 1gb ddr3

please and thank you

A:computer turns on for a few seconds then turns off

Try resetting the bios on the motherboard.

You can do this by opening up the computer and remove the battery and then reinstall. There are also a jump to do the samething, but you have to look at your motherboards manual /user guide to see where it's located.
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A:computer turns on and then turns right back off

Processor: AMD FXClick to expand...

You didn't fully describe the AMD FX processor you have. Here is the supported list of FX processors for that motherboard.
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A:Monitor turns on for a second and turns off

maybe electric power cable is loose connettion. Pls check and change power cable
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A:my computer turns on but then it turns off

Don't worry - This is a common issue - I ask, can you boot into the OS using SAFE MODE?
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Please help, i am so frustrated

A:HELP - my pc turns on for 1 second, lights up and then turns off.

I don't know if this would be it but I have seen this type of problem on a computer that turned out to have a bad power and reset switch. One way to check to see if this is the case pull off the wires for the power switch and reset button going to your board. Then you would want to find something like a screw driver or something that you could cross the power pins with and see if the machine does the same thing.
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A:My PC turns on and off on by itself

I'd start by turning off power management options and confirm the auto on/off problems don't occur

1) In Device Manager, rt click Properties for EACH of your network adapters. Click the power management tab. UNCHECK "Allow computer to turn this device off to save power" - which btw will also prevent it from waking up from standby mode

2) In Control Panel->Power Options, disable and settings allowing for sleep/standby or hibernation modes
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A:My Pc Turns On By Itself!

Have you install any software or hardware lately? Do you have any USB devices?
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A:Pc turns itself on

hello try this
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I have a home computer with XP Home Edition.
Sometimes I find the computer on in the morning.

What up here?
Has this happened to anybody else?


A:XP turns on by its self???

Do you have an NIC installed? Look through your BIOS settings for something like "wake on LAN".
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A:It turns on, but that's it

So when you turn this laptop on now, you get no Acer logo or BIOS screen?  Absolutely nothing...? If that's right, then try disconnecting the mains adaptor power lead which plugs into the laptop.  Remove the battery from the laptop, then hold down the laptop's on/off switch for 10 seconds, then release it.  Leave the battery out for the moment, but now plug the mains adaptor power lead back into the laptop.  Switch on, and see what happens. If it works, then switch off, remove power lead from laptop, replace battery in laptop, connect power and restart.
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ill give as much info as poissible....

i turn my computer on i didnt have my fan on the computer so it did its normal overheat and turn off.. i did it twice then realized it

but now when i turn it on i gives start with system repair or normal...
i did system repair it took 1 hr to fix a "disk" error...

i try to start up and it goes to loading.. all that and right before you hear the noise when ur computer turns on i get a blue screen for half a second and my computer turns off

it repeats if i try to turn back on

i do system repair again and it says can not fix problem but wont show what the problem is...

am on my dads laptop atm fml)

A:turns on then turns off

If you create a recovery DVD, you may be able to boot to recovery options
Create Recovery DVD.
Hard Disc Controller must be set to IDE in BIOS and Bios must be set to boot from the CD Boot Priority - Change

The Vista recovery disk is used to boot Vista when it won't boot - to run Startup Repair, System Restore, access a Command Line, Recover using a Vista Backup Image, etc.
System Recovery Options. Choose an option tht will not cause you to lose your stuff.

If Vista will not start now, boot the Recovery CD to run Startup Repair which automates System Restore as well as numerous other tests including System File Checker which can repair system files which are not corrupted beyond repair.

If Vista still will not start, try booting into Safe Mode to run sfc /scannow to repair System files.
Special Thanks Given to Seven Forums.

Below is a bulletin distributed by MS to explain the start up procedure when Windows will not boot.
Startup Repair. Startup Repair is a Windows recovery tool that can fix certain problems, such as missing or damaged system files, that might prevent Windows from starting. Startup Repair is located on the System Recovery Options menu, which is on the Windows Vista installation disc. If your computer has preinstalled recovery options, it might also be stored on your computer's hard disk. For more information, see Startup Repair: frequently asked questions and What are the system recovery options in Windows Vista? If your computer does not include Startup Repair, your computer manufacturer might have customized or replaced the tool. Check the information that came with your computer or go to the manufacturer's website.Change restart settings in safe mode. If your computer is stuck in a loop where Windows fails, attempts to restart, and then fails again repeatedly, restart your computer in safe mode and select the Disable automatic restart on system failure checkbox. For more information, see Advanced startup options (including safe mode).Reinstall. If no other options have solved the problem, and you are sure that your computer's hardware is functioning normally, you might need to reinstall Windows. A custom (clean) installation of Windows will permanently delete all of the files on your computer and reinstall Windows, so only use this option if all other recovery options have been unsuccessful. After the installation, you will need to reinstall your programs and restore your files from backup copies. For more information, see Installing and reinstalling WindowsSee if you can get to System Restore, by using this procedure. If So go back 2 days before the initial problem of the fan.
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Sometimes at night, I leave the pc running for downloads. The last 2 nights, when I come down in the morning, the pc is off. I have to physically disconnect and reconnect the power cord before it will turn back on. Then it automatically runs the XP disk check, signalling an illegal shut-down.

Any ideas?

Windows XP Pro

A:PC Turns Off by Itself

What brand/watts power supply do you have? If it's not labeled in the back, then open the case and take a look -- it's the box with a fan and is connected to the power cord.

Check to see if you have the Sasser worm.

Check your memory using Memtest. Put the unzipped file onto a floppy disk or burn the ISO image onto a CD. Put the CD or floppy disk in the computer, reboot the computer and it should run after reboot (if the computer is set to boot from floppy and/or CD on start up). Now let it check for errors.
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We got a quot new quot computer and it is driving me nuts Dh bought it to be the server for his computers at work and it gave him a lot of problems there and the guy he bought it from told him that he heeded a more expensive computer that was built to be a server Instead of replacing the one that wasn t working dh turns It off! just bought the new one works fine and brought the old one home to me I formatted it and installed WinME The problem is that it occasionally just turns it self off I thought it was because maybe it got too hot running some of the kids big games but it has done It just turns off! it while no one was running anything on it or while I was just reading help files We took it back to the shop it came from but the guy there said he had it on quot all day quot and there was no problem He thinks it is a problem with the power at the house but my old computer is often running at the same time and doesn t turn off I can t find any problems in the power settings and don t know what to look at next Any ideas It s a Pentium GH Also I tried to put the modem from another computer in it and PnP says it finds a new PCI card and not a modem I tried it in different slots What am I doing wrong Thanks nbsp

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A:PS3 turns on only sometimes

Power supply is probably going out. Bad thing about consoles is you can't open them up and look or it will void any factory repairs. Only option you have is to send it to Sony and hope they can fix it. PC is really the way to go if you want to game, you can't customize or self repair your consoles when they mess up.
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i just bought a new motherboard for my computer becuase the last one broke. but anyway it is a k7s5a motherboard. everything is installed correctly but when i hit the the power button the cpu fan turns for a couple seconds, but thats it, nothing else happens.
so if anyone knows what up just leave a reply

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hi can any one help me i have dell Pentium 4 1.7 ghrz running window xp sp2 without video card.. i reformatted and it turns 4 bit it looks like windows 98! i check the properties and it give only 4 bit no other choices.. can anyone help?

A:32 bit turns 4 bit!

You made the mistake of formatting the hard drive and doing a clean install of Windows XP SP2 without first identifying the devices in that computer and obtaining the Windows XP drivers for them and burning them off to a CD-R.


What's the model name and model number of that Dell?

Look on the sticker and advise what the 7-character service tag number is.


Right-click MY COMPUTER, then click Properties - Hardware - Device Manager, then click the + in

Display Adapters

IDE ATA/ATAPI Controllers

Network Adapters

Other Devices

Sound Video And Game Controllers

Advise what's listed in each heading.

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hi every one the problem that i have is that my pc turns itself off for one reason or another,after 3-5 hours of being on my computer it just dies on me
and the only way it will start again is by taking the plug out of the socket putting it back in and starting it up again can any one out there help me i would be grateful

A:pc turns it self off

could be overheating (maybe):
take the cover off, blow out all the dusk from the inside, move the box to a non-enclosed space, run the pc w/o the cover on...
[in general try to keep the box cool]- then see if it still shuts down
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Can anybody tell me what this can be? i also tested psu, and it does give me correct voltage.
I have also check Motheboard for blown capacitors, there is no blown capacitors they just a bit fat. The numbers on them are c391, c395,c396, What are this capacitors do?

A:XPs 710 turns off after 1 second.

Capacitors are used in circuits to regulate voltage - prevent sags and spikes.  If any of them have bulging tops (which is what your description sounds like) they have failed, whether or not they've outrigt blown out - you will need to replace the mainboard (and it would be a good idea to replace the power supply as well, since they've been on the downward spiral for some time, and may have caused damage to it as well).
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Any suggestions about this problem ??

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I am using windows XP with McAfee McAfee detected and removed a trojan Then right itself Turns off? PC after that removal detected another one I think it had the same file name It was JS something or another Then computer restarts itself After the reboot I start getting DLL and WIN errors All the sudden I now have new Anti-virus spyware programs One was PC Turns itself off? Windows Police and the other was called Total Security PC Turns itself off? No matter how many times i close and try to uninstall these programs they re-appear Im getting tons of errors Pop up after Pop up from the un-solicited progams My McAfee antivirus software wouldn't even start up So at this point I'm at a loss and dont know what to do I get out all my discs that came with computer and decide to try to reinstall the Mcafee the drivers and diagnostic tools I cant even run a program from my CD drives Next I try to get the software via internet from the McAfee and Dell websites but guess what My internet connection has limited or no connectivity I restart in one of the safe modes To my relief I now have internet accsess and feel a glimmer of hope So I try to download and re-install the McAfee It starts out ok but then locks up when its close to completion So I have to turn off the computer It boots back up and my background has changed Its text explaining my computer is infected and that everyone I have contacted is at risk It says I should install and run-antivirus software right then Not to wait One of the two programs puts a quick launch icon that looks exactly like the Windows Security Center icon in my tray So i have two icons down there that look the same I dont even trust Windows Security Center at this point So I battle for hours and finally get McAfee back up I scan and remove several cookies PUP's and trojans I can now get to my files but I cant run anything but Internet Explorer and McAfee I try acsessing diagnostic tools through DOS get some programs to run but then the computer turns itself off While in DOS mode I see whats been done to the files Many of them are missing the last character in the extension ex instead of exe for example So go through a lot of dirs and look to see if I can figure it out Im not bold enough to try to change anything in here so I give up I do CTRL F and im gonna start all over but every time System Restore runs the comp turns its self off After countless hours I finally manage to do a system restore I held down an F key after and managed to get it completed I dont know if that helped or not but that was the only way I ever got past completion Cool its done right NOPE Im reinstalling and updating windows and McAfee and it all looks good Im noticing how fast the PC is now I go to my email and various websites where I spend money and find out all my passwords have been changed I start reinstalling my ZUNE software and it locks up at I leave it there for like mins waiting No luck I turn the PC off again restart it and then I cant even get in safe mode The computer turns it self off several times in a row Three or four seconds after restart it would shut off Safe mode didnt work Safe mode with command prompt didnt work revert to last known settings that worked did not work My computer seems to be run fast Maybe I'm just trippin now but I think something STUCK even after my system restore Im hoping one of you will be willing to help me out THANKS P S Sorry for the wall of text DDS Ver - - - NTFSx Run by DKC at on Sun Internet Explorer Microsoft Windows XP Home Edition GMT - AV McAfee VirusScan On-access scanning enabled Updated B EE - - CDE-A A-DD BA FAD FW McAfee Personal Firewall enabled B - C F- -BDA - CA DA E Running Processes C WINDOWS system svchost -k DcomLaunch svchost exe C WINDOWS system svchost exe -k WudfServiceGroup C WINDOWS system svchost exe -k netsvcs svchost exe svchost exe C WINDOWS Explorer EXE C WINDOWS system spoolsv exe C Program Files Java j re bin jusched exe C WINDOWS system igfxpers exe C Pro... Read more

A:PC Turns itself off?

Hello,We apologize for the delay in responding to your request for help. Here at Bleeping Computer we get overwhelmed at times, and we are trying our best to keep up.My name is Syler and I will be helping you to solve your Malware issues. If you have since resolved your issues I would appreciate if youwould let me no so I can close this topic, if you still need help please let me no what issues you are still having, in your next reply.Download random's system information tool (RSIT) by random/random from here and save it to your desktop.Double click on RSIT.exe to run RSIT.Click Continue at the disclaimer screen.Once it has finished, two logs will open. Please post the contents of both log.txt (<<will be maximized) and info.txt (<<will be minimized)Then please post back here with the following: log.txt info.txtThanks
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A:My pc turns itself off

You should check if your pc is running hot. The ambiant temperature has been high.
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A:Turns on but nothing there

It is a bad power supply or motherboard. Do you see any bulging or leaking capacitors on the motherboard near the CPU fan. Here's what bad capacitors look like:
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The PC in question nbsp Gateway FX Windows i processor GB DDR RAM TB HDD Blu-ray Super-Multi combo drive DVD-Super Multi drive ATi Radeon HD MB video Integrated LAN no modem USB optical mouse no web cam will normally turns day until the PC on then once; next not BIOS PC turns on normally once; then will not until the next day P -A Logitech stereo speakers Manufactured nbsp Power cord is plugged into a Monster power control strip nbsp Power switch on PC works normally when PC is turned on about a m each day nbsp HISTORY nbsp Worked normally until the day after I uninstalled Apple Quick Time nbsp A system restore to just before that did not fix the problem nbsp The PC turns on normally early in the morning about a m however is totally unresponsive after either Hibernate or Shutdown nbsp Next morning it is normal again until after either Hibernate or Shutdown Since it turns on normally first time each day which occurs early in the morning I suspect some setting or instruction in Windows is causing and controlling this nbsp But I have not found anything suspect in the Power setting and have exceeded my knowledge level with regard to other settings instructions

A:PC turns on normally once; then will not until the next day

Your PC is now about six or seven years old. Right? There are a number of things that can 'wear out' in time.  First, try another video card. Next remove and swap out memopry sticks. If that does not help, the motherboard may have some component that has gone bad.Most common are the electrolytic capacirtores. The is no esy way to test them other tahn intgrusive  testing.(Whaich menas yhou remove one and replace it with a new one.)Do you have some test erqkuipment?for what it is worth, here is a video albout testing motherboard cpaciltors. you find the problem.,155865.0.html
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HP Pavilion d6770Z laptop
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My Computer show the optical drive (D as DVD-RAM

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Worse, My Computer now says the device is a CD-ROM.

I have removed the drivers and let them by re-installed after reboot.

The drive is an LG GSA-T20N (Lightscribe).

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I have just re-formatted my HD and re-installed XP Pro using the setup CD. After a successful installation and within a few minutes of starting up the computer turns itself off. After re-starting the same happens or the system freezes during startup. Device manager indicates no hardware conflicts.
XP was originally installed and functional, I re-formatted as the HD was cluttered, running slow and error report messages were virtually always sent when opening my computer etc.

Please help.

A:XP turns PC off by itself

After starting XP Run DRWATSON, which may capture some data of the problem and post it. Good luck.
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A:pc turns its self off

Heat? Bad connections? New or old problem? More when hot from use?
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A:Turns off

does it completely turn off or you just do not see a screen

any error messages

what are you running
video card
power supply

check the listings in the bios for voltages and temperatures and post them
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A:PC turns itself off

Hi there, and welcome to Techspot.

Your problem could be any number of things, and the best thing to do is start troubleshooting one component at a time.

Here is a guide to help you try and find out what is going on.
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A:pc turns on but nothing

Reseat the video card...reseat the RAM...check all connections for all devices...that would be my start.

Then, if necessary, I would try a different video card (first) and monitor (second).

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A:PC turns off

please mention which operating system u r using.
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Windows Vista 64-bit
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Thanks for any help in advance.

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A:PC turns on then off then on and does nothing

Unplug your PSU from the back and click the power button 5-10 times to discharge. Open your case and, after grounding yourself, take out the battery that looks like a watch battery from your motherboard. Wait 10 min. and put it back in. Boot your computer without the keyboard and mouse plugged in.

Id your SSD a boot or cache drive?
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I turn my pc on, the fans on cpu, video card, a little on the motherboard, power suply fan everything turns on but no video signal and no beep when you first turn it on, what is up?

A:PC turns on nothing happens.

no beep usually means system board and or power supply issue following link may be of use you need to re post your computer specs back computer type etc etc
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A:Turns On But Then Nothing

i am having same problem with my computer. I got my computer from a friend knowing what the problem was and i tried several monitors and same thing turn it on and same thing tower runs but nothing on the screen someone told me it was the video card. I dont know though. Thats why im here because i know i can get a better answer here. Please help us guys. I start school august 1st need my computer for classes. I cant do school work on my phone.
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What would you do in this situation?:

You leave your computer on all the time, and all this time you have had no problems. Starting last month you have found the computer off. This has happened about 10 times. Sometimes you must reach around the case and turn the power switch off and then on before the main boot-up button will work. A few times lately you have found Windows XP in a semi-frozen state (the screen is black and you can do no more than see and move the mouse pointer).

Perhaps I might have a virus? My only antivirus is AVG and my modem is NetZero dial-up. I have backed up my files - next step?
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I have no idea why, but the volume turns down by itself. I always keep it at 50, but the thing drops to 48, then 46, and then lower and so on. Is there any explanation for this?

A:Volume turns down by itself

Quote: Originally Posted by Revol

I have no idea why, but the volume turns down by itself. I always keep it at 50, but the thing drops to 48, then 46, and then lower and so on. Is there any explanation for this?

What keyboard are you using? Does it have volume buttons? I've seen bad keyboard drivers do that on 7.
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Why would cause my computer to turn off by itself? It's not hot. I bought the cooling fans. Help

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Hey all I have strange problem at my work place the computer turns on and off by it self I'm at lost has what is problem and the computer techy at my work place is at lost as well ..

Anyone know why or how fix it ..

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My computer turns off when ever it wants to. I have no control over it. sometimes it will run for 2 hours, then some days it runs for 10 minutes. Is updating the bios a possible fix?

A:computer turns off when ever it wants to

how long has this been going on? did you make any h/w or software changes at about the time when this anomaly started?
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Hello, I'm new here so I hope I am putting this question in the right place.

In the past week my computer has developed a mind of its own. It will come on all by itself, even when turned off. When I attempt to shut it down I get a message that "other users are using this computer, do you still want to shut down?" Of course I reply YES, the computer shuts down, but then about 5-10minutes later it will startup again. The only way I am able to prevent this from happening is to switch off the power strip that my processor is plugged into.

What gives? Thanks!!

A:Computer turns on by itself

make sure acpi is enabled in your bios. what supply is installed?
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Hi guys,

After starting the computer, at no specific time, the mouse will stop working+the screen will turn off and on, sometimes it will turn off completely and you cant turn it back on. 80% of the time pressing the reset button will solve the problem and the computer will work fine again but sometimes like tonight ill have turn the computer off completely at the wall.

The computer is quite old now, about 5 years. Its running XP with AMD Xp1700 and a crappy Nvidia GF4 MX 64mb graphics card. The sound card is a Hurcules Game Theater XP with external control hub. 512mb RAM.

Can anyone shed any light on what might be the problem??


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when i play zdaemon or duke 3d and i play music on the comp and sometimes even when i dont the computer just fully goes off, its a laptop. when i turn it back on i have to hold down the on/off button and it goes on than back off than i do it again and it turns on like normal. this sometimes also happens when i watch a video on the net. any help of why and how to stop this would be great

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My computer does this
1 press switch at plug to on, lights flash on the keyboard
2 Press power on switch on tower
3 Computer starts up for about three seconds
4 Turns itself off
5 pressing power button now does nothing
6 press switch at wall to off
7 Go back to one
I have tried a new power supply unit and this made no difference

I have also noted that if i keep reset pressed whilt i press the power on button the computer runs for around ten seconds before it turns itself off

Any suggestions?


A:computer turns itself off

You might wanna try the following.
Only connect the mb,cpu,cooler,minimal RAM & vga. So no HD or cd-rom or other pci cards.

Try resetting your CMOS

If you still have it then, (IMO) i think its the motherbord that shortcircuits something.

Greets Crazy,
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Somebody got EZ Eyes keyboards. Now I need help terminating the Power button to the right of F12. I tried changing it to = with SharpKeys. Then I went into Control Panel>Power Options like mentioned below. Its a desktop and the option of "ask me what to do" isn't there. Just Shut down , Do nothing , Sleep or Hibernate.
I've heard about mapping keys but never did it without SharpKeys.

All help is appreciated especially before my cat finds that button. LOL

I did have to go into my Windows properties settings and set it to "ask me what to do" when the power button on my computer is pressed as otherwise hitting the "power" button on the keyboard will cause the computer to be turned off, and I don't want to even accidentally turn off my computer from the keyboard.

A:EZ Eyes turns PC off with 1 key

It was nice seeing the letters on the keys again. But I had to remove EZ Keys and go back to my hard to see MS keybpoard.
THe cat turned pc off twice and I did too because I'm use to that being my Prnt Scrn key.

In a perfect world those 3 keys (Power , Sleep , WakeUp) could be changed to (= , @ , &)

Every suggestion is appreciated.
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Seems my standby turns on by itself I put it in standby and went to cut the grass Came back in and it was on Again put it in standby went to the store and when I came back it was on Possible virus trojan infection Sometimes it has a bubble above itself? turns on Standby by the internet icon in the taskbar saying the internet connection is not on Just out of curiosity left it on again a few hrs later it turned on by itself Never did it before no new programs in months ran spybot adware norton antivirus CWshredder have spywareguard and spywareblaster installed All updated and nothing was found file of HijackThis v Scan saved Standby turns on by itself? at PM on Platform Windows XP SP WinNT MSIE Internet Explorer v SP Running processes C WINDOWS System smss exe C WINDOWS system winlogon exe C WINDOWS system services exe C WINDOWS system lsass exe C WINDOWS system svchost exe C WINDOWS System svchost exe C WINDOWS Explorer EXE C WINDOWS system spoolsv exe C Program Files Common Files Symantec Shared ccProxy exe C Program Files Common Files Symantec Shared ccSetMgr exe C Program Files Norton Personal Firewall ISSVC exe Standby turns on by itself? C Program Files Common Files Symantec Shared SNDSrvc exe C Program Files Common Files Symantec Shared SPBBC SPBBCSvc exe C Program Files Common Files Symantec Shared ccEvtMgr exe C windows system hpsysdrv exe C HP KBD KBD EXE C WINDOWS System spool drivers w x hpztsb exe C PROGRA DATACA FLashKsk exe C Program Files Common Files Symantec Shared ccApp exe C WINDOWS System RUNDLL EXE C Program Files MSN Messenger msnmsgr exe C Program Files Messenger msmsgs exe C Program Files SpywareGuard sgmain exe C Program Files SpywareGuard sgbhp exe C Program Files Norton AntiVirus navapsvc exe C Program Files Norton AntiVirus IWP NPFMntor exe C WINDOWS System nvsvc exe C WINDOWS system slserv exe C WINDOWS System svchost exe C Program Files Common Files Symantec Shared CCPD-LC symlcsvc exe C Program Files Norton AntiVirus SAVScan exe C Program Files Internet Explorer iexplore exe C Program Files Common Files Symantec Shared AdBlocking NSMdtr exe C Program Files HiJack this HijackThis exe R - HKCU Software Microsoft Internet Explorer Main Default Page URL http us hpwis com R - HKCU Software Microsoft Internet Explorer Main Default Search URL http srch-us hpwis com R - HKCU Software Microsoft Internet Explorer Main Search Page http srch-us hpwis com R - HKCU Software Microsoft Internet Explorer Main Start Page http www pa net R - HKLM Software Microsoft Internet Explorer Main Default Search URL http srch-us hpwis com R - HKLM Software Microsoft Internet Explorer Main Search Bar http srch-us hpwis com R - HKLM Software Microsoft Internet Explorer Main Search Page http srch-us hpwis com R - HKLM Software Microsoft Internet Explorer Main Start Page http us hpwis com O - BHO AcroIEHlprObj Class - E F-C D - D -B D- B D BE B - C Program Files Adobe Acrobat Reader ActiveX AcroIEHelper dll O - BHO SpywareGuard Download Protection - A E - F- - B - B DDD DB - C Program Files SpywareGuard dlprotect dll O - BHO no name - - F - D - - D F - C PROGRA SPYBOT SDHelper dll O - BHO Freedom BHO - E D-C B- D -B C- E A - C Program Files Zero Knowledge Freedom FreeBHOR dll O - BHO Norton Personal Firewall - ECB - F - bbc- D- DDF E - C Program Files Common Files Symantec Shared AdBlocking NISShExt dll O - BHO NAV Helper - BDF E -B - AD-A -FADC B - C Program Files Norton AntiVirus NavShExt dll O - BHO no name - FDD B - D - ffb- - B AD ACC - c Program Files Microsoft Money System mnyviewer dll O - Toolbar amp Zero-Knowledge Freedom - FA B -F - - C - E ED - C Program Files Zero Knowledge Freedom BandObjs dll O - Toolbar amp Radio - E - F- D - E- A C - C WINDOWS System msdxm ocx O - Toolbar Norton Personal Firewall - B EAC - D - b e- B -A C A A - C Program Files Common Files Symantec Shared AdBlocking NISShExt dll O - Toolbar Norton AntiVirus - CDD BF- FFB- - AD - DF B D - C Program Files Norton AntiVirus NavShExt dll O - HKLM Run ... Read more

A:Standby turns on by itself?

See this link -
about this item in your log - O4 - HKLM\..\Run: [USB] C:\WINDOWS\system32\usb.exe
I use my USB a lot and haven't got that entry.
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Yesterday afternoon I turned my PC off, then tonight when I got home I found that my PC had turned itself on.
Anyone know how this happenned? I have a Gigabyte GA-7S748 Motherboard, Athlon 2600XP, WinXP.
If this is some setting on the PC, Is there a way to configure when it turns itself on? This would be a handy featue that I would be able to utilise if configured to turn on at the right time.

A:Computer turns on by itself

Some BIOS do have a power on timer setting.

Also if the Wake On Ring is enabled, the phone ring is detected by the modem and wakes the computer.
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My laptop is an HP Pavilion dv I know OLD This problem only USUALLY happens once or twice a month Before I believed that the computer had froze and would just restart it Today while streaming an archived webcast the screen went blank It did not go completely black seeing how the back light was still on and During off Turns Display Use I was still able to adjust the back light intensity The webcast was still playing the laptop was still on making same old sounds that it was indeed still running I was reading about similar problems online but did not get a chance to test any of the simple fixes Instead of turning the laptop off this time I merely closed my laptop lid and waited for it to switch to Display Turns off During Use standby mode After a few seconds I opened it back up and my screen was back to normal Does this sound like something is only l ose within the chassis and is affecting the connection for the screen Thanks in advance nbsp

A:Display Turns off During Use

have you made sure that your video card drivers are up to date? also can you post the Product number on the white label on underneath of the laptop?
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Hello, when ever I turn on my computer it always turned off right after it passes the bios screen. I'm trying to install Xp it boots off the cd and gets to the part where you choose the spot to install it then without me doing anything it turns off. It is fine when you are in the bios settings it never shuts off in the bios. Any Ideas?
History: Just replaced the DC Jack. Before that I have not used the computer for a year. Has vista installed on the hard drive because I was using it in another computer but I want to install xp on it. bios settings are default

A:Computer Turns Off

Does the hard drive still have Vista installed?
Have you tried formatting the hard drive with a 3rd party utility (to include deleting all the partitions and then recreating them)?
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Hi everyone, I was working on my sony pc when all of the sudden it just restarted as if i had just turned it on. I remember it had happened before, so i just waited for it to restart but this time it would get to my wallpaper and then the blue screen where it says windows is loading and it keeps restarting. it wont let me log in. I am running on windows XP and have not installed any programs or hardware lately. I have also tried running in safe mode but it gives a lot of directory lines. I dont know what they mean. i also just tried to started up again right now and it gave me a dark blue screen that said error : Bad_Pool_Caller. Can someone please help me??? I dont know much about computers


A:Computer Turns off

Hi Happy1323, and welcome to BleepingComputer.Do you have the installation disk for this computer, it you do use the disk to access the Recovery Console.Note: You may need to change the boot order in the BIOS so that the CD-ROM is the first device in the boot order to be able to boot from the Windows installation disk.To run the Recovery Console from the Windows XP startup disks or the Windows XP CD-ROM, follow these steps:1. Insert the Windows XP startup disk into the floppy disk drive, or insert the Windows XP CD-ROM into the CD-ROM drive, and then restart the computer.Click to select any options that are required to start the computer from the CD-ROM drive if you are prompted.2. When the "Welcome to Setup" screen appears, press R to start the Recovery Console.3. If you have a dual-boot or multiple-boot computer, select the installation that you must access from the]Recovery Console.4. When you are prompted, type the Administrator password. If the administrator password is blank, just press ENTER.5. At the command prompt, type chkdsk /r , and then press ENTER. 6. To exit the Recovery Console and restart the computer, type exit at the command prompt, and then press ENTER.
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This is one of the strangest things I have ever seen I have an HP Elitebook p and recently updated my Windows to Windows Now when I have certain windows open and focused it's always different sometimes it's chrome sometimes it's the control-panel and so Backlight turns off on there is no clear pattern the backlight of the screen is completely turned off - when I take a torch and point it to the screen or hold it to a bright-light source I can see there is still a picture there you can even work or better said you cuold if you'd see anything When Backlight turns off I tab to certain other windows the screen goes back to normal back light - I can then tab back to the other window and the backlight will be turned off again I have no idea what's going on and also no idea what information you need The display-adapter I got is the AMD Radeon HD M - I tried updating to the newest driver but that didn't help Any help is appreciated Here's a video of the whole thing

A:Backlight turns off

It almost sounds like a switchable graphics issue and that would point towards a graphics driver issue in general. So, I did some research and I noticed the latest driver download (directly from AMD) is not compatible with a switchable graphics configuration:

Moreover, I was really confused when I tried to locate your graphic drivers and I found they were all Intel versions based on your model number.

Select a product - HP Support Center

Anyway, good luck in resolving your issue.
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My computer turns off and on and off and on I thought I needed some utilities or something so I bought Norton Systemworks I have scanned for viruses etc Fixed lots and on and turns off off on Computer and of stuff But when I try Norton WinDoctor Wizard and scan the Windows Registry ActiveX com sections the scanning seems to get stuck on a CLSID A -D - - - BOD CA Then the computer shuts down and goes to a black and white screen that says Reboot with CD If I turn the computer off manually at that point then back on Windows XP will start up Then I get a message about quot Computer turns off and on and off and on Error Computer turns off and on and off and on loading C Windows Bxxs dll quot If I say OK sometimes I then get or three of those Microsoft Computer turns off and on and off and on send don t send messages Finally this whole process takes about minutes I am able to log on The other scans work fine and as long as I am actively using the computer it doesn t seem to shut down But if I go answer the phone or take a break for too long again the computer turns off and on and off and on Can anyone help me nbsp

A:Computer turns off and on and off and on


I would suggest you download a copy of Grisofts FREE Anti-Virus program.

More than once it has found problems on my system that Nortons missed.
You can also do a free virus scan here,

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Well i start the laptop up, and it decides to turn it self back off, it does this about 1-5 times, and sometimes it doesnt do it at all, im not sure if my battery is low, and it turning it off. Any idea's on how to fix this?

My laptop is:
Windows xp - Professional
Service pack 2
Version 2002
Make - Packard Bell

A:Laptop Turns It Self Off.

Look in the Event Viewer and see what errors are showing up at the time that this is happening. Each error will have its own date and time shown.Start> right click on My Computer> Manage> Event Viewer.On the right side of the page you will see the options Applications, Security, and Systems, double click on Systems. There are eight columns on this page, the three that you will want are Type, Date, Time, and Event.The errors will appear in the Type column, they are red dots with a white X inside of them.Warnings will appear as a yellow trinangle with an exclamation mark inside.When you see an error, double click on it and see what the description is.Please post the error code/s found in the Event column and the descriptions back in this topic.
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every time i tried to play a game after a few second (10-15) of loading the game my monitor turn off n the only way to get it back is to restart my pc .......any ideas off how to change the settings in control panel to fix the issue???


A:monitor turns off

If all games and not just one
Lots of possible reasons in no particular order

Does your system meet the specs for the game?
Do you have latest drivers for your motherboard and video card?
Adequate power supply?
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I have noticed recently that the main computer in my house is turning itself on. I tried shutting it down normally, and holding the power button to turn it off, but 5-10 minutes later, it's back on again. It's a Compaq, running windows XP. It's connected to a wireless router.

A:Computer Turns Itself On

Go into thew BIOS, and make sure that 'wake on lan' or something similar is disabled. Otherwise, everytime it gets a ping from the router, it will start up. Wake on lan is used to remotely start a machine, but can't be used these days really by the home type computer exactly because of that reason.

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hi all,

just bot a dell optiplex gx110. when i hit "start", then "shut down", the computer automatically turns itself off. therefore my power strip (which worked fine with my prior towers) can neither turn off nor turn on my dell. any ideas?

A:dell turns itself off

Thats the way ATA power supplys work. All the newer systems work the same way. You will need to use the front power button on the system to turn it on.
You can try setting the AC power recovery setting in the systems bios to ON. Then the system should boot up when power is supplied.
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I am using Windows XP sevice pack 2 and my computer just shuts off when I use certain programs (virus scan etc.)
Can someone please help me in finding the problem?

A:Computer Turns Off By Itself

Can you be a little more specific on what programs and a little more descriptive? Are there any error messages, does the screen go blank or just freeze?
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Hi all I hope you can help with this problem I bought a new laptop a Dell with a K screen but a CPU and GPU that aren't really powerful enough to be in a laptop with a K screen This was a week ago I used it last weekend laptop itself off turns New and it turned itself off twice on Sunday -- both when trying to New laptop turns itself off launch a game New laptop turns itself off I haven't switched it on all week but did tonight and watched a little Netflix then left it idle A few minutes later it just died again this wasn't a power saving option automatically turning it off Looking at event viewer there are critical instances of shutting off without a clean shutdown One was on Sunday night which I don't remember But I have a vague memory that it completely locked up and I held the power button down And I think when it came back on the desktop layout was a bit different Any ideas on what I can do to find out the problem It was bought brand new from Dell and I am planning on returning it anyway as I find the K a pointless and counterproductive gimmick at this spec and I wonder if the strain on the CPU GPU is what's causing the dying It's an Inspiron i - U Windows my first experience with Windows I'm not a fan AM Radeon M GB GPU Intel HD Graphics onboard GB RAM TB HDD This may be a problem for a separate thread Also today I made a Dell factory settings restore disk on USB mostly to return it without my stuff on it and left it connected after completion After a while the USB disconnection sound played and I get a message saying the device has malfunctioned and cannot be read I have disconnected and reconnected it a couple of times and same thing

A:New laptop turns itself off

Hi mediahero& Welcome to the forums ^_^,
Kindly follow the instructions below and upload the ZIP file so that the problems could be analysed -
Let us know how it goes ^_^
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So I brought my computer back from school and it wasn t working It looked like a motherboard problem so I replaced it and it started working for awhile Then it started to work intermittently Soon on... Computer turns sometimes it wouldn t start at all Computer turns on... sometimes My next step was to test the power supply which was dead I bought a new one and hooked it and everything was working again After a day or two the computer would only turn on every once in awhile For example I ll play games on it for a couple of hours and it ll be fine Then I ll turn it off and come back to it the next day except it wouldn t Computer turns on... sometimes turn on at all I ll leave for an hour or two and won t touch it come back and it s working like normal again What the hell is up with my computer Components replaced Motherboard RAM PSU I also shorted the power switch to ensure that wasn t the problem either The only thing I can think of at this point is that the power supply or motherboard failed AGAIN nbsp

A:Computer turns on... sometimes

CPU fan, power switch, wiring harness, defective optical drive interfering with the rest of the system, defective case fan, defective cable socket... Could be something simple and inexpensive if you find a tech experienced with tracking down weird problems in a computer.

Good luck. Let us know how it all comes out.
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Hello there I ve had a problem lately with my computer turning itself off at seemingly random intervals I ve had it suggested to me that my problem may be Mobo heat-related GPU or funky RAM Having looked at each of these issues in detail I cant single out a possible cause for my situation I can go between five minutes and two days without a turn-off its truly random My CPU AMD Athlon X Processor my Video card Nvidia GT Gigs of ram in four MB sticks My psu is a Dynex -Watt ATX All drivers up to date I was told by a friend that it sounds like graphics Computer turns self off card Computer turns self off failure However I have noticed no artifacts or other hints that my video card may be failing I investigated each ram stick and reseated it My GPU is running at a modest celsius under load And overall my case temperatures are well within safety shutoff limits The shutoffs seem very random in nature as mentioned and occur during anything from opening a Youtube video to a crash during Starcraft installation I ll be glad to give any more information as needed I ve had this problem for about two weeks now Thank you in advance nbsp

A:Computer turns self off

Have you had a look at the Event Viewer Logs? May be they can offer some clues.
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Ok this one has me completely stumped. My computer does this neat trick in which it can turn itself on and off at random. Yeah it's old and probably senial at this point. It's a Pentium 2, 350 mhz. I tried replacing the power cord, plugging it directly into the wall, replaced the power supply, replaced mobo and processor and still nothing has solved it. I don't know what else I can do or what could even be causing it.

Any ideas what could be causing it???