SOURCE: Computer stays on but display will not stay on
OK, let's see whether we can solve the problem.
You see the first screen. Do you see the windows starting screen for a few seconds? (The light blue screen if you are having XP). If you see a glimpse of this screen the problem is with your VGA settings, not hardware.
Here is how to correct it.
Start the computer and, as BIOS screen is about to close, press F8 button several times. You will see the Boot menu. From there select 'Enable VGA mode' - if you have XP - or 'Enable low-resolution video (640×480)' - if you have Windows 7.
See whether Windows screen appears. The icons might appear larger than usual.
Right-click on the desktop and set the resolution to 1024 x 768. (You can later change it to a value you prefer). You may also set Screen refresh rate to a lower value like 60, but this is optional.
Restart the computer and check whether your problem is solved. And if it is, consider voting my solution.
Good luck! And thanks for using FixYa!
SOURCE: motherboard won't boot past cmos
you are pretty much right it may be a corrupt bios, however before we come to a conclusion try isolating both Seagate Barracuda 7200 rpm 80gig ide hard drive and optical drive only and then see if it at least goes past the bios screen, if yes then the bios is ok and just needs to be resetted to defaults. dont expect it to load windows even if it goes past bios check as hard disk which helps to boot to windows would be removed. also in case if you are using 2 ram slots try connecting only 1 ram chip in 1 slot and then see if it goes past the bios test screen. do reply with results. Good luck.
Testimonial: "Based on Prathamesh's diagnosis I'm going to flash the motherboard with a latter version of its firmware."
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