The screen goes blank. The motherboard appears ok. Capacitors look ok. Computer appears to be running with no video.

The lights inside most likely indicate it has power and is waiting for power button to be pressed. Could be as simple as power switch is failing.

Remove the battery and open the case. Look inside the computer with a flashlight to see if any of the capacitors are busted or leaking from corrosion. The capacitors look like little battery towers, but they are not as tall as the AA or AAA batteries.

If the capacitors are bad, your computer goes bunkers.

Check if the cable connecting your monitor from the video card is properly secure and not loose...
You can also try this... turn off your cpu..remove the cable from your video card.....Open the housing....remove your video card from your motherboard... clean the contact surface of the video card with moisten cloth.... after cleaning...connect the video card to the motherboard...attached the cable to your video card.. close the housing and try to boot again...

I hope that work.. if not my suggestion is you try your video card in other computer, try also the monitor to other computer.. to see which one failed.


Much appreciated if you rate this help.. thanks..

she is having trouble because she knows them capacitors are going bad...... replace them... but it nay be more than that... dont give up on finding this problem, because you may find a breakthrough!!

Do you hear anything during startup, beeps, fans or drives spinning, lights on the front or back of computer flashing or lit up? Do you hear the Windows starting sound?
Let us know more then we can troubleshoot better. It is starting to sound like 1 of 3 things, Power supply, Video card or motherboard.
Situation #1: If you get a blank screen and no sounds or movement it either indicates that the power supply unit (PSU) has failed or something on the motherboard has failed, preventing normal startup.
Situation #2: If you get sounds and lights but nothing on the screen then it indicates a failed or loose video card.
Always try a different power outlet that you know is working. (Eliminate the easy stuff first!)
If it is out of warranty, Try opening up the case, with the power off, of course. If you have Sit #2 and have a video card that you can reseat try that.
Also take the time to inspect the capacitors on the motherboard (they look like tiny soda cans) and check for tops that are bulging, swelling or leaking anything. Capacitors should be perfectly flat on top. If you find these then your motherboard is bad (well technically the capacitors on your motherboard are bad). The caps will need replacing to fix (not a job for an amatuer). If it passes the visual inspection then it may just be your power supply is bad. Notice that a bad PSU does not mean you are getting no power, just not enough to start and run the computer.

Are you using an ON-board graphics adapter or a separate VIDEO CARD? Some motherboards lets you set the video output to "DISABLE ONBOARD GRAPHICS" if you have installed a video card (BIOS). You may have plugged the monitor cable to the onboard D-sub connection instead of using the Video Card D-sub connector.

Normally a flashing green power light means the input it receives from the video output is too much. You may have set the resolution too high or the bit depth too high. Consult the monitor manual on the rates it can handle. To be safe, try starting the computer on safe mode just to check if it is indeed the problem. If it boots properly and you can see your desktop, then there's a chance that the setting was too much for the monitor to handle.

Hope this gives you an idea.

you have bad capacitors in the power board inside the monitor replace these and the monitor will work fine

It appears that the display resolution set in your display properties is out of the range that the LCD can display.

Try this.

Boot to the ENABLE VGA MODE by pressing F8 to get the Windows Boot Menu. If you can get to the desktop, then go to display properties, and see if you can change the resolution to higher settings and maintain video. (If the video blanks out, then it should revert to the previous setting in 15 seconds)

Google bad caps on motherboard. I just revived a VLi8 which had this problem. For the KZM-6120 motherboard that I have there a six 1500 uF, 6.3 volt capacitors lined up in front of the pentium III heatsink. Look for gunk oozing out the base of the capacitors. This is a well-known problem apparently. See here:

http://en.wikipedia.org/wiki/Capacitor_plague

Symptoms sound similar. What mine did was that the computer wouldn't reboot after windows 2000 reinstall, lock up during boot, and the yellow lock light would be on sometimes. I could only run from a floppy. Updated bios, changed HD, nothing worked.

Replaced the six caps, and I have reinstalled system (2000 pro) and everything is working fine.

It could also be that the video card is not compatible with this monitor. After the pc boots up, can you get into windows? Does the monitor always go out at a specific time on boot? Say for example; you boot the pc, windows startup splash screen comes on; screen does a quick flash and goes blank. Then it maybe the BIOS setting for the video. Try changing the IRQ setting. You could also try putting the video card in another slot. Do you have the manual for the motherboard? Ray