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Lcd lights at power on but no display

Q: Lcd lights at power on but no display

When I power on my Toshiba equium a200-151, the screen lights up but no display at all - even though there is loading activity. I rigged up to my PC monitor and everything is fine - see bios and windows loading etc. Borrowed a spare compatible working screen but same problem. I'm not 100% sure if its the inverter or the ribbon connector - any ideas before I buy a new inverter? Thanks for looking.

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Preferred Solution: Lcd lights at power on but no display

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A: Lcd lights at power on but no display

I would say that the video cable (ribbon cable) is bad based on what you have tried so far. This cable goes from the motherboard to the LCD display. Did you use the old inverter off the suspect Toshiba when you tried the compatible spare LCD panel?
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My Lenovo Thinkpad T450s will not power on. It has been charging overnight after being on hiatus for a month but does not seem to be responding. (I've also tried a different charger.) The power button green light and the red light on the cover above the "i" have been unresponsive and will not light up. I have tried...Unplugging and taking out battery and then holding power button for 30 seconds.I've tried utilizing the reset button on he underside of the laptop. HELP?!?!?!?
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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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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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Hi friends
I have a computer with following config:
-Acorp Motherboard 6zx86
- with intel PIII 500.
- SDRAM-128MB,
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-sound card creative soundblaster 128
-OS win 98 SE

I shut down my PC on this monday normally, but it did not start again. only keyboard lights flash, and the green LED comes up. i have stripped down to processor and motherboard but still no beeps. I tried pluggin my CD-Drive with power from SMPS and it was able to play audio CD sometimes but not every time, on different restarts. i tried with different battery but no change in status.

what may be the problem?

please help.

Vipin Agrawal.

A:No Display, No Beeps, only Lights

So, you aren't able to get to the Windows desktop in any event, correct?
Do you have another power supply to test?
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A:No Power Lights

Hi Howard598, welcome to TSG.

I would say it's time for the repair shop unless you want to attempt to take it apart and check things. I'm assuming it's out of warranty?
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A:Some Lights no power

Not sure what you can do with this other than have a repairer look at it. If the fan had stopped it has most probably cooked the CPU.
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Thanks for answer!

A:NB250-10R - no power no lights

You can try to remove battery pack and try to start it with AC power supply only. If this will not work maybe is there some problem with power supply electronic placed on the mainboard.

When you connect AC power supply is AC IN indicator on?
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will it be my power suply and should i take my power suply out of another pc to check it or is it something eles do you think.thankyou

A:Solved: please help no power no lights on etc

mains power suply gone.had a spare and checked it.thanks guys
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I bought a gaming PC, and I am wondering if my graphics cards and the computer itself are pulling to many watts, Will the lighting inside the box put a demand on the power supply??? I am debating about taking them out, I don't even have the lights on anyways I find them a waste they came with the computer I bought

A:Will lights draw too much power?

Josh86 said:

I bought a gaming PC, and I am wondering if my graphics cards and the computer itself are pulling to many watts, Will the lighting inside the box put a demand on the power supply??? I am debating about taking them out, I don't even have the lights on anyways I find them a waste they came with the computer I boughtClick to expand...

Josh*^ - the lights could not possibly be pulling more that 10 watts, at an extreme. Probably they are actually pulling a level that you could not notice before-and-after if you used an actual measurement, such as with the Kill-A-Watt.

Same for fans, and most anything else you plug in or on except video cards.

Everyone: you will spend all kinds of money to have powerful components, and a suitable power supply - so go ahead and get an ACTUAL power draw measurement -

The kill-a-watt is simple to use and read, very simple. it costs $20 or $25.

You can use it on anything you plug into a 120 volt outlet. Vacuum cleaner, hair curler, radio, anything. It tells you exactly how much power is being used. Exactly.

For over a decade, these power calculators have been estimating power needs, and they have been over-estimating by 100% the entire time.
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A:Power on, lights up, screen does nothing.

It sounds initially like a bad Motherboard, But that's only a guess as many other things could be causing this. First, I would want to know if you had any Viruses lately, or if the unit was dropped recently. Sometimes viruses can wipe the Boot Sector of the Hard drive, while this is rare it's worth considering. Does the screen appear to be illuminated at all? If it illuminates without booting, the screen is probably not bad and this is what I expect from what you're describing.

You'll want to approach the issue as an over system problem at the motherboard level, possibly at the hard drive level. The main thing is, you want to see the familiar boot screen before moving forward.

It's possible too that your laptop has a bios reset Jumper on the motherboard, yes that's inside the case of the laptop. Don't try to fix it yourself unless you're comfortable trying this. And, if you do, make sure to properly ground yourself.

If it were me, I'd try disconnecting the hard drive and attempt to boot from a CD. If you still get no screen activity it could be the Motherboard or screen. Motherboard would
be likely bad if this method proves that the system continues to reboot. Keep in mind that Bad ram may cause the unit to reboot also. If it's bad Ram then you might just have to replace that for a low cost without having to pay for service.

Check out these things and report back.
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A:HP G60 no power up with 3 blinking lights

Hi,          Since the light blinks 3 times its related to memory issue, you can have a check from the below link
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Does anyone have any suggestions?

A:No power, strange lights

Hi mooseo,
Thank you for reaching to Dell Community Forum.
Please try to run the on-board diagnostics <F12> and capture any error codes or message you receive.
We would also suggest you to drain the residual power from the laptop:
* Disconnect any external peripherals (flash drives, printers, external hard drives) from the computer.
* Remove the adapter and then the battery.
* Press and hold the power button for 10-15 seconds.
* After draining the residual power, try reseating the memory and see if the system is able to boot.
Please private message us the service tag of the system along with your email id.
(Note: please don't mention the service tag or email id on the public forum as it contains your personal information).
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Hi I am connecting wirelessly through a Linksys WAG G v yes and internet display router odd Intermittent lights on quite old This has been fine I always seemed to have green lights on my router and could connect with good speed After a week of not using the computer I switch on my router and often Intermittent internet and odd display lights on router get a red 'internet' light come on The last time this happened it was a problem with the line but I have been in touch with my ISP and they insist the line is OK this time Then even when I have all green lights and I do connect very often the connection drops out and have to manually reconnect - sometimes it will let me reconnect other times not I have not changed any of my settings but my router is and always has been quite hot - i wondered if this is Intermittent internet and odd display lights on router the problem but why have i had no problems before I have been using this router now for about years Some people have mentioned the microfilter Do these suddenly go after a while I thought the filter was just cabling so if it has not been touched why would there be a problem Don't want to buy a new one to find this isn't the answer Any help would be greatly appreciated

A:Intermittent internet and odd display lights on router

Originally Posted by maxboyes

I am connecting wirelessly through a Linksys WAG54G v1.2 (yes quite old). This has been fine, I always seemed to have green lights on my router and could connect with good speed.
After a week of not using the computer I switch on my router and often get a red 'internet' light come on. The last time this happened it was a problem with the line, but I have been in touch with my ISP and they insist the line is OK this time.
Then even when I have all green lights and I do connect, very often the connection drops out and have to manually reconnect - sometimes it will let me reconnect, other times not.

I have not changed any of my settings, but my router is, and always has been, quite hot - i wondered if this is the problem, but why have i had no problems before? I have been using this router now for about 5 years! Some people have mentioned the microfilter? Do these suddenly go after a while? I thought the filter was just cabling so if it has not been touched why would there be a problem? Don't want to buy a new one to find this isn't the answer!

Any help would be greatly appreciated

I have experienced similar problems with a very old Netgear Router. I solved the problem by resetting it to factory settings using the button on the back.

This may work for you too.

Make sure you know all the logins for your ISP etc. before you do this.

There is a chance it could be a genuine hardware fault, I mean broadcasting near non stop at a high frequency, generating immense heat for 5 years+ will take a toll on anything.

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A:Gateway MX6124 won't power up - no lights

Hi this was all I could find hope it is of some help
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A:Nothing has power except fans and lights? New build.

Welcome to the forum. A daft one but this often happens is there any jumper on clear cmos pins I have know boards come with them set on normally you only put that jumper on for a second or so. Failing that disconnect hd,cd and any addon cards that are not needed with keyboard plugged and try then. If it still doesnt work try it out of the case often its a short when putting it in the case
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A:Black screen, no lights, no power

Hello @Khelm2701, Thank you for visiting the HP Forums! The Forums are a great place where you can find solutions for your issues, with help from the community! I read your post about the notebook not starting, and wanted to assist you!  I understand that the fan was running very loud, and now the notebook is not responding at all. First, try reviewing the following document, and let me know how it goes:HP Notebook PCs - Computer Does Not Start (Windows 10) Please let me know if this information helps you resolve the issue by marking this post as "Accept as Solution", this will help others easily find the information they may be looking for.  Also, clicking the Thumbs up below is a great way to say thanks! Have a great day!
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Any sugestion please.


A:HP Pavilion DV1000 power lights comes on and then it goes off again

I had a Mobile phone that did that replaced battery and it became fully functioning again. Is there any way to run without battery attached? power source only or could you borrow a battery from someone to check results?
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A:No Power to PC but green LED lights up on Motherboard

Thanks for quick reply, i do appreciate it. ok now for a stupid question, how do i determin the motherboard type so i can search for a new 1, i know it is an intergrated 1 but thats about it
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A:T450 and T460 won't power on (no lights)

Did you already try to insert the end of a straightened paper clip into the emergency reset hole on the bottom of the T460 after removing the AC adapter and the external battery?
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A:Compag Presario Has Power But All Lights Are Off

You may want to open the case and Look for a BIOS Jumper. These are small connectors for special features to work, usually black or blue.

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BTW make sure the power is OFF before you try this.

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I'm just confused how I was using it 9 hours prior without any problems, shut it down and went to bed and then this morning it's dead, completely dead.  Can anyone offer any assistance please??

Thanks in advance.

A:Inspiron 1545. No power at all, no lights, nada

Hi ak47bwood,
Welcome to the Community,
Try to release flea power and see if that helps.To release flea power disconnect the charger,remove the battery and press and hold down the power button for 30 seconds(with battery and charger disconnected).Now put back the battery and reconnect the charger  and turn on the system.
If this does not work,would like to ask you few question to find out the problem.
Does the charger light ( light on the charger brick) come on when its plugged in to the main power outlet?
Have you tried different power outlet?
If the charger light comes on,does it stay on when its plugged in to the system?
What is the status of the light on the power button of the system?
Please post back for further help.
Thank You,
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A:my laptop is not powering up the power button lights but the...

It sounds like a hardware issue.Try to take a look at the caps lock light on the PC keyboard.If this light blinks ina pattern. Check what kind of patter it is.for e.g., 2 flashes, 3 flashes, 4 flashes, 5 flashes and so on.
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A:Power led, motherboard LED, lights for ethernet cable all on but nothing else
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many thanks
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A:Dell Inspiron 17R-5720: No Power - No Lights

Did you try with AC adapter only (battery back removed), I have run into few laptops that would not start with bad battery. ?
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Mod's Edit: Additional information added to Subject line for clarity of issue.
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A:Dell Latitude E6520 won't power up (no lights at all)

Did you try removing the battery and AC adapter and holding down the power button for 30 seconds. Then re-installing the battery and try booting again?
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A:Satellite NB10T-A-102 wont power up - no lights

If the power LED isnt lighting up when the AC is plugged in, its most likely a Mainboard problem.
ASP can repair it
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A:Homebuilt system; fans and lights work, but no display or POST

There is no onboard video on that board. Not sure why your friend told you that, cpu has nothing to do with it. You will need to add a graphics card to fix your problem. Here are the board specs.. If you can exchange the board for it's z68 counterpart (paired with your i3) you could than get onboard graphics and not need a GPU.
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Did some troubleshooting as mentioned in the comment on my video.

I am unable to  copy the comments from that video which has all findings done so far.
Please help.

A:Dell t5500 workstation diagnostics lights 2 3 4 blinking no display

Thank you for writing to Dell Community Forum.
What is the led status on the power supply unit found at the back of the system?
Most of the troubleshooting steps indicate an issue with the motherboard.
Please private message us the service tag of the system along with the result from the above step.
Regards,DELL-Akshatha MSocial Media and Community Professional#IWork4Dell
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A:Laptop lights (power/charging) - Dell Inspiron

What is the exact system model?
The power led and the leds on front are also used as diagnostic indicators. If there is any hardware issue on the machine, these leds help isolate the source of the issue. Hence, there is no way to disable the leds from turning on, as they would be connected to a cable soldered to the motherboard.
Download the service manual / specifications for a better understanding of the machine - - enter the service tag and download it from the Manual section.
Write me a private conversation with the service tag and your contact details(Name and Email) for case records.
Let us know if you have any other queries.
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Also, it's an ASrock p67 extreme 4 mobo
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A:PC turns on lights but shows nothing -- won't turn off with power button

The motherboard is most likely bad now... CPU's rarely fail. I wonder why you have had to change so many
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Hi there:

My satellite A300 fell from my desk. It was disconected.
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Ive opened it to check if there was anything broken but it seems all good.
What can i do?

My battery is dead so i cant do anything with it.

A:Satellite A300 - no power lights and doesnt turn on

on this virtual way it is not easy to say what is wrong there but if there is no reaction and DC led is also not on I presume there is some problem with power supply electronic placed on the mainboard.

Visually everything can be OK but some connectors are probably damaged.
Repair (mainboard exchange) is pretty expensive so I think you should sell it on eBay and obtain other machine.

Satellite A300 is nice machine and you can get another used A300 on eBay for about 100- 150 Euros.
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A:Aspire 7520 Power & Computer on lights both flashi...

Hello, Sometimes it all works correctly, the lights do not flash, and I can continue as normal, Most times it fails. Did you straighten lightly the contact springs of the DC-IN socket (laptop side)?
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A:Aspire 7520 Power & Computer on lights both flashi...

Hello, Sometimes it all works correctly, the lights do not flash, and I can continue as normal, Most times it fails. Did you straighten lightly the contact springs of the DC-IN socket (laptop side)?
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A:Netbook dead - no lights, no boot, odd power noises

My guess and it is only a guess is that the pw supply on the mb failed. With the price of netbooks so cheap, even if it were repairable, it makes no sense to spend the money to fix it when a replacement would cost less than the cost of repair.
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When battery is in and you first plug in power cord the light for the power indicator blinks blue then the light for the battery charge blinks then nothing else.
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A:E4310 won't turn on. Battery and power lights blink once

Hi Rodeoqueen13,
I would suggest you reseat a few components, like memory, hard drive and optical drive and see if that makes a difference. In the link below punch in the system service tag or express service code and you can access the user manual for removing and reseating components. Please let me know if this helps.
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I've replaced both the battery and the mother board and it remains dead.

I've removed both discs and the memory and optical drive - still dead.

Any help to restore this great laptop would be appreciated

Thanks Ray - aka mihd

A:Satellite X200 PSPBUA - No power, no lights, dead!

> I've replaced both the battery and the mother board and it remains dead.

Are you sure that the new motherboard is ok?
There are no many parts which could be affected: motherboard, CPU or RAM?
If one of these parts would be faulty, the notebook would not power on.
But usually the power indicator should flashes even if the CPU or memory would malfunctions.

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A:Computer can't POST, turn off - flashing power, keyboard lights

Do you have a multimeter or a friend that does so you can test the power supply?
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My old precision M6500 was turned on then it shutdown without any warnings.
My battery was dead since a while ago, the battery light was blinking all the time but I did not care about using the battery.
Now if I press the power button the battery light above the keyboard and on the left side rapidly blink orange for about 2-3 seconds.
If I remove the battery and press the power button it does the same.
I tried removing the battery and pressing the power button for 30 seconds without battery. Then I pugged the power cord and pressed the power button but still the same blinking.
Is there a way to force it on or is completely dead?

A:Precision M6500 blinking lights when pressing power button

Try another adapter if possible.
Download the service manual here -
Disconnect the adapter and battery and press and hold the power button to release any static power.
Remove and reseat the memory modules and check if the system powers on only with the adapter connected.
Disconnect the HDD / ODD and check.
As a last resort, remove and reseat the CMOS battery and check if the system powers on.
If nothing works, then I would suspect a failing motherboard.
Also, please click my DELL-username and write me a private conversation with the service tag and your contact details(Name and Email) for case records.
Let us know if you have any other queries.
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The mobo DPN is 088DT1 but I can't find its manual.
Here's a picture of closeups of my mobo connectors, and my case connection cables.
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Hello Forum Summary Weird burning smell for or boots -- gt Doesn t turn on no sounds or lights from comp -- gt replaced power supply -- gt worked for a few boots replaced lights, Solved: no Won't Turn power Computer on, supply -- gt back to completely nonresponsive state mins later details follow I do not know the system specs and I can t find them out without posting this issue at this Solved: Computer Won't Turn on, no lights, replaced power supply time It may not be that necessary to know the details but I can find out soon if necessary Let s just say it is NOT a new computer - the motherboard is large - I could tell you the model in a later post - the processor is x GHz something like MB RAM I have HDs I am running Win XP Old Power supply Was pretty old up to years old but maybe a few years younger or W I haven t seen the computer much for years since I started using and it was upgraded in the meantime One day I turned on my computer and shortly afterwards the room started smelling like burning metal rubber or something acridly foul Opened the case and nothing seemed to be boiling or noticeably hot though I didn t really touch around The only thing that was reasonably warm was the P S I thought I noticed the smell coming from it but it was only slightly smellier in that area at most Didn t add anything special or change anything in comp recently beforehand Played loud music on in the night before but the speakers have their own power supply So I decided to replace the P S - I purchased an hec HP D W ATX V Power Supply says something like ORION on the actual P S label It is a generic brand it seems and cheap limited budget and figured no reason to spend a lot on P S for this comp So I replaced the power supply and connected everything and it worked My friend helped me connect the power supply and said it didn t really matter what I connected to which cable The first few boots there were some error messages that the floppy drive was not recognized even though it was hooked up The system booted once in spite of the startup message but then I would get to the blue WinXP background and freeze startup would freeze The message disappeared after completely disconnecting power and mboard connection the floppy and the computer booted up and I got into Windows once or twice perfectly fine THEN I tried to boot the computer again after about min and it didn t budge Since then nothing has worked I have nothing connected but a keyboard and monitor ABSOLUTELY NO SOUNDS OR LIGHTS following these steps Unplugging flipping P S switch both pressing down power button - secs plugging back in Unplugged flipped voltage switch back and forth pressing power down plug in and turn on Unplugged drained power repeat MBOARD power connection try again Unplugged grounded hands Removed memory cards drain power plug in -- gt NOTHING AT ALL Replaced memory cards unplugged both power amp data connections from everything except the power to MBOARD from P S plugged in power cord -- gt NOTHING The only things I haven t tried that I have read about Another power cord this one seemed to work for those few recent boots Removing all nonessential PCI devices and reseting BIOS Does anyone have any ideas Thanks Michael nbsp

A:Solved: Computer Won't Turn on, no lights, replaced power supply

It's extremely likey that when your PSU blew it damaged your mobo as well. If you have removed and replaced everything else and nothing works then it's either your mobo or cpu. In this case it's likely your mobo.
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My Optiplex 780
- will not post
- will not beep
- will not output any video

When I push the power button, 
- Diagnostic lights 1 & 4 flash
- Power button is of solid amber

When I turn the computer off:
- if I press the Power Supply test button, it illuminates green
If I disconnect the power cable
- A tiny LED on the circuit board (next to AUX PWR label) stays amber for a minute or two.

Diagnostic lights 1 & 4 are not documented in the Dell manual. I have tried to disconnect all peripherals, all drives, all cards, even all RAM, still no POST no beep, no video: just the fan running, and diagnostic lights flashing.

Any hope for this computer? 

A:Optiplex 780 diagnostic lights 1 & 4 with solid amber power light

Thanks for writing to us. 
Diagnostics led 1 & 4 indicate power connector faulty. Please reseat the PSU connector if not yet done. 
If issue still the same, then consider replacing the PSU . Sometimes the PSU connector on the motherboard to be faulty. 
Do let us know how it goes post reseating the PSU connector.
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Been a long time since I ve been around here but I ve gotten help here in the past so hopefully you guys can shed some light on my issue I m a little stumped and a little frustrated on this one Basically nothing happens when I hit the power button on my computer except that for just an instant the fan lights and everything comes on but then nothing Hitting the power button again immediately will do nothing at all until I unplug and replug the and Computer lights Solved: power an fans won't instant flash up, for power cable This all started a few weeks ago when my computer just shut itself off randomly After that happened the first time it did come back up and the first thing I checked was CPU temp which looked OK It shut itself down again soon after booting it and never came back up again after that Here s what I ve tried so far Like I said this happened a few weeks ago and the reason it has been so long is because I sent my motherboard out for an RMA because I thought I determined that to be the root of the problem Well I got the replacement mobo today hooked Solved: Computer won't power up, lights and fans flash for an instant everything all excited and ready to go hit the power button same damn problem Hence my frustration The reason I didn t think - and still don t really think - it s the power supply is because I have a pretty good quality power supply tester has an LCD screen and everything and when I hook the PSU up to the tester it powers up just fine and shows proper voltages for the v and v lines as well as the graphics card power cords I ve tried little things like different power cables different wall outlets thinking my battery backup is faulty its not everything else plugged into it works fine tried each stick of RAM by itself tried taking out unnecessary peripherals cards hard drives etc So now I m stumped I guess my real questions are is it possible to have a bad PSU that tests out fine I don t have another power supply to test with unfortunately but I need to try and get my hands on one before I submit an RMA for that Would a bad CPU prevent the computer from powering up like this I don t think I ve ever dealt with a bad CPU but I would assume the computer would at least power up and throw blue screens or something if it was indeed a bad CPU Man that turned out to be a lengthy post Sorry about that Here s my system Intel core i ASUS P X D-E Corsair w power supply Corsair gb ddr eVGA GTX lots of hard drives lots of fans Any advice would be greatly appreciated nbsp

A:Solved: Computer won't power up, lights and fans flash for an instant
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I push the power button and it lights and nothing screen. I push it again to turn it off, then I am constantly pushing the button on and off. After about ten minutes it will go right into the normal boot mode. Not sure why it is taking longer to get into this normal boot mode I have windows 7 and I have a Toshiba Satelite T 115-S1100. I would be so grateful for any help. Thanks.
Mike in St. Louis

A:Power button lights, but laptop does screen, no boot
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My Levono ideapad Y700 no longer turns on when I press the power button. The power light turns on and the keyboard backlight turns on when I press buttons on the keyboard, but the screen remains black no matter what I do. Also the small lights on the front of the laptop light up (ones next to the power light and the battery light). Please advise on solution. Thank you.

A:Y700 Laptop Power Button Lights Up but Black Scree...

Thats a power issue, simply "Hard Reset"  by removing the power cable from the laptop and then press and hold the power button for more than 20 seconds. Then wait a few seconds and turn it on simply! If it doesn't work, do it 2-3 times, for me it worked the 3rd time.After that, go to a service centre cuz then it might be a hardware issue!
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My machine runs as normal, all the fans are working. My PSU and Video Card is quite new, I upgraded them over a year ago. No problems since today my computer wont boot up.

My moniter is blank, there is no light on the keyboard, so Im assuming it has something to do with the MOBO. But the there is a GREEN LIGHT on in the MOBO

Already tried unplugging the Jumpers, the CMOS battery, RAM, the 4pin and 24pin connectors. Holding the Power button for 30-60 secs(with Power cord off)

I tried everything I could think of.

Any help Folks?

CPU: Intel? Core?2 Quad Processor Q9400 at 2.66 GHz
GPU: GTX 760 4GB DirectCU II
Memory RAM: 6GB
OS: Windows 7 64-bit
PSU: Corsair CX750M

A:No LED lights on Power button, PC wont boot.Fans working and MOBO

Have you tried having different Ram setups like only having 4GB?
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I bought this a couple of years ago from a local computer store. It's been very reliable and I run Ubuntu 16.04 Linux on it. This afternoon I had a power drop of a second or so and since then when trying to boot the issue in the subject happens. I can get to boot as usual by pressing the power supply test button which gives me a green light on the power supply and then pressing the power button will let it boot normally. I don't have any version of Windows installed so it's not possible to run any diagnostic unless there are some Linux based ones.
Thanks for any help

A:Dell Optiplex 780 MiniTower, power light flashes amber diagnostic lights 1 & 3 flash

Blinking Amber power: Initial state of light at power up. Indicates system has power, but the POWER_GOOD signal is not yet active. If the Hard Drive light is off, it is probable that the power supply needs to be replaced. If the Hard Drive light on, it is probable that an onboard regulator or VRM has failed. Look at the diagnostic lights for further information.
1+3:  Memory modules are detected, but a memory configuration or compatibility error has occurred.
You could try resetting BIOS to see if you can clear the error.

Reboot and press F2 to open BIOS setup
Copy down all current BIOS settings
Power off, unplug
Press/hold power button for ~15 sec
Open case and remove motherboard battery
Press/hold power button for ~30 sec
Reseat RAM modules in their slots
Reinstall battery- good time for new CR2032 coin cell, if this one is old
Close case and reboot

If that helps, go back into BIOS setup, and confirm that all settings match what you wrote down. Be sure to save any changes before exiting setup.
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A:screen blank, keyboard lights up,hd lights up, no light on floppy, no boot
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I prefer to manually power down the monitor rather than rely on the "Turn off the display" setting in Power Plan Settings. Is there a major difference? Good, Bad, Ugly, das macht nichts? Any critical concerns I need be aware of?


A:Monitor Power Off vs Display Off via Power Plan

I don't know of any G/B/U. What ever way you choose.

I personally turn power off to my computer and everything plugged into it after a proper shut down.
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I have my Windows 8.1 setup so the display turns off in 1 minute.

I have the power options setup so that the power switch shuts the system down.

But it doesn't. If the screen is off and I press the power switch on my PC the screen comes back on. I then need to press the power switch a second time for the computer to power down.

Is there anyway to configure Windows 8.1 so that the power switch does not turn the display back on, but just immediately shuts the system down?


A:With display off want power switch to instantly power down

You don't have to do that.
When the display is turned off and when you press any key on the laptop, it will bring the display back on.
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Hi, I just installed windows 7 on my laptop and the power options page doesn't display a "dim the display" option, nor do the keyboard commands to dim the display do anything. Is there a way to fix this?

I am running a Lenovo G530 machine and there does not seem to be driver support for windows 7 on their support page. However I downloaded the mobile Intel 45 chipset graphics driver for windows 7 and I downloaded the newest bios update; nether seemed to solve the problem.


A:Power options page doesn't display a "dim the display"

Quote: Originally Posted by cramis1

Hi, I just installed windows 7 on my laptop and the power options page doesn't display a "dim the display" option, nor do the keyboard commands to dim the display do anything. Is there a way to fix this?

I am running a Lenovo G530 machine and there does not seem to be driver support for windows 7 on their support page. However I downloaded the mobile Intel 45 chipset graphics driver for windows 7 and I downloaded the newest bios update; nether seemed to solve the problem.


Hi Cramis1! Welcome to SevenForums! I found some Energy Management drivers. Seeing as I don't know whether or not your running 32 or 64-bit, here are the links for both.

Windows 7 64-Bit:Lenovo Support - Drivers & Downloads

Windows 7 32-Bit: Lenovo Support - Drivers & Downloads

If I helped, please click the scales at the top right of my post and click I Approve.
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A:No Power to notebook LCD display

I was shadowing a network systems admin and he had to replace an LCD out of a DELL laptop. That cable you are talking about was permantly fixed to the new LCD screen.
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Hi Guys

I recently installed w7 fresh install and all of a sudden my display and tower will not power down anymore.

Any ideas would be appreciated.

A:display/tower won't power down

What does it do when you try? As in, how far does it get?

I am assuming you are just clicking Start>>Shut Down. Is that right?
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Whats up? lol

A:Everything has power but dosen't display?

Disconnect or remove all peripheral devices from the main board--floppy drive, hard disks, CD/DVD drives, modems--everything but power and video. Turn it on and see if you get any video. If you do, then the cause of the problem is one of the disconnected items. Turn it off and reconnect or reinsert the items one at a time, attempting to POST after each, until you get a failure to POST (power-on-self-test). The problem item will be the last item connected before the failure.

If it still fails to POST after removing all the peripherals, then it is either bad memory, bad power supply or bad main board. If you have more than one memory chip, try one chip at a time. If you have only one memory chip then you'll just have to find a known-good chip to test further. Once memory is eliminated, try another power supply. If you don't have another, take yours to a shop and have them test it.

Once you've eliminated all those parts, you're down to a bad board. And that is probably not worth replacing in an old system.
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I tried:
The drain method
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I can't afford a new laptop.
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I am really in need of some assistance !

After a hardware problem which isn't neccessary for the purpose of this forum, but due to this problem i had to open the laptop in order to try and solve the problem. I have the Packard Bell Easynote TJ65 and when trying to solve this i came in contact with the hard disk, the memory modules, wifi antenna ( breifly ). I also had to remove the status bar and the key board, i also breifly touched the power button on the hinge.

However, after pressing the power button, the blue power indicator is on also the bluetooth indicator is running however the screen is lifeless. Any advice will be brilliant !

Thank you for your time

A:Power on .. On light on ..but there is no LCD display .. Please help?

Hi, im afraid i'll need more info before i could suggest what might be causing this problem, for example the previous issue that you tried to resolve, did you replace any parts? If you could tell me what the issue was that might also be very helpful because it may have just been a symptom of one of your other parts beginning to fail. Also can you hear the fans start when you press the power button?
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I have removed all my RAMs and get beep code. So I was told my motherboard is ok
I have removed the Cmos battery for 30mins also reset the jumper. still didnt work
I have reseated all connections. didnt work
I dont have a graphics card that I can remove.
I have tried on two working monitors

I dont have any replaceable like more RAMs or mobos...
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I can here the fan hard drive everything powers up but no display. My monitor light just blinks.
I even replaced the cpu and still nothing at this point i am thinking mobo.
I also put in a video card and tried using it for the monitor still nothing.
Help please.

A:No display when power up computer

how are you getting error msgs if there is no display?
does the display only go out when windows starts to load?
did you try another monitor?
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Just purchased y700 laptop with the works and it is pure garbage!!!!!
So call me crazy, but when I spend $1300 on a top of the line laptop I don't think it is too much to ask that the dam thing actually works for more then a week! I checked the forums to see if it was a fluke, but nope it is a well known issue that many Lenovo laptops get a random black screen on boot up and there isn't much you can do about it. I am going to give Lenovo one shot to make this better or im going to ban any Lenovo products from ever being used in my workplace again.
2/1/16 EDIT: Changed subject line to improve searches for this topic

Go to Solution.

A:Y700 - No power, no display

My y700 doesn't have that problem but I understand how you feel!
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im currently working on a computer with a p4i65gv motherboard and i am not getting any display on power up and no trouble code. can someone please help me diagnose this problem?

A:no display upon power up and no trouble code please help

do you get any beeps from the speaker at all?
If not, disconnect all drives, remove the RAM and all cards such as video. Reboot - you should get a string of beeps. Also all the cables to the front panel. Power off.
Replace the RAM and reboot by shorting the front panel power cable connection. Should be more beeps. Power off
Replace the graphics card and reboot, should now be 1 beep. Power off and reconnect the drives one at a time. Reboot after each reconnection - keep replacing things until you find what stops it.
If nothing at the beginning, take the motherboard out of the case and try it on a non-conducting surface - maybe a short to chassis somewhere.
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New computer, not even 24hrs old. Got my BF-BC2 game installed and patched up but display drops into power save when i try to start playing. The game is still running, i can here it and everything, I just can't get the monitor to come out of Power save mode.Any idea's or tips would be very appreciated

Model - Dell XPS 8300

OS Windows 7 Home Premium, 64Bit

CPU Intel Core i7-2600 processor(8MB Cache, 3.4GHz)

Memory 8GB DDR3 SDRAM at 1333MHz

Graphics CardATI Radeon HD 5670 1GB GDDR5

Monitor Displays Dell ST2420L HD LCD

Screen Resolution 1920 X 1080

Hard Drives 1TB - 7200RPM, SATA 3.0Gb/s, 16MB Cache

A:Display always drops into power save

Try this: Start/Control Panel/System and Security/Power Options....Check High Performance...see if that helps...
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I have a display off Windows power 10 Setting in only to one possible? dual monitor setup Main display being my computer monitor on my daily media server pc and the second being Setting only one display to power off in Windows 10 possible? the living room tv I m fine with the main display powering off during power saving mode I m not ok with the secondary living room tv powering off Any time I m Setting only one display to power off in Windows 10 possible? streaming music to the living room via JRiver Media Center and the computer Setting only one display to power off in Windows 10 possible? puts the secondary display to sleep since there is nothing technically being done on the computer it obviously cuts off the music because the audio is transferred via the hdmi cable to the living room tv Is there a way to manually edit each display for power saving I still want the main computer display to power down for power saving and to extend the life of the monitor but I don t want the signal getting cut off to the living room tv It causes more problems from time to time then just cutting off the music nbsp

A:Setting only one display to power off in Windows 10 possible?

Power savings affects the whole computer. This would be a good idea to suggest to Microsoft to make that an option. The only thing I am aware of what you can do is to flip the non-used monitor off and leave the power state, "on all times".

Are both display in the same room?

If you have good spec PC, you could underclock it and save power that way? Get a lower wattage PSU?
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Ok so i just finished building this display, on off, and just no built power boot, No system Raidmax RX- SS W modular cable power supply ABit IP -E Core Duo E GB WD Caviar SE SATA Emprex CD DVD dual layer burner GB OCZ - - - pc And standing in until the No boot, power on and off, no display, just built gt gets in a geforce gt CoolerMaster Hyper tx When i first turned it on all case fans and the cpu fan No boot, power on and off, no display, just built spun up as well as the video card fan and the monitor clicked on About - seconds later the system seemingly powered down Another seconds later it powered back up without me touching the power switch and the monitor did not respond Since this first experience i ve attempted unplugging the cd rom drive which prevented the system from powering down but no display ever comes up Then i also unplugged the hard drive no operating system on it yet anyway and the system again powers down after - seconds and turns back on This made no sense to me I m not really sure what could be causing this problem Did i break the cpu when putting on the massive heat sink Did i fry the motherboard somehow I m reasonably sure the video card is ok Its been sitting in a box ever since i replaced it The only theory i have is related to the V rails The IP -E has an pin slot but says that it will work with a pin connector The power supply has what looks like an pin connector broken in half so that it will work with all ATX motherboards So far i ve only plugged in one of the pin connectors Should i plug both in Also i have the dvd hooked up to the master IDE i doubt this makes any difference especially when i ve unplugged it I may have plugged in the power switch cable backwards initially Could that cause any of these symptoms Is there any special way you should hook components up to the power supply Right now i have enough connections to give each fan a direct connection Thanks for any help at all edit No beeps are heard at all even after taking out the memory And i took out the video card and the same powering on and off persists with no beeps nbsp

A:No boot, power on and off, no display, just built

Take the motherboard out of the case. Check to make sure the CPU heatsink is installed properly and that there was thermal paste applied in the right place. Run only with power, cpu, memory and video. See if the motherboard posts. If it doesn't post, it or the CPU is defective
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Please bare with me, I'm new to this but:

I have a Dell XPS 15 running 7 x64 (more details please see my page) and I am trying to dim my display through the OS. When I press the Fn keys to change the display brightness, the notification shows on screen that it is changing the brightness with a nice little slider and all, but nothing moves and the brightness won't change. I've tried pressing repeatedly, holding down, no change. So naturally, the next step is to change the display brightness settings in power options. Only problem is, IT'S NOT THERE! I have no option relating to display brightness. I've tried re-installing display driver with no help. I don't know if it is a problem with Dell's display not supporting the function or with Windows 7 not offering.

Thanks in advance for any help, please ask if any more info is needed.

A:Not able to dim display either with Fn keys or through power options.

Try uninstalling your video driver and installing the latest video driver from Dell:

Drivers and Downloads | Dell [United States]

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