Out of the blue, my desktop no longer passes POST.

So, today when I turned my computer on this morning, it would not pass the POST. I had shutdown my computer the night before with shutdown -h now (like I usually would). I did not move, bump, unplug, plug-in, or change anything at all with the computer. The computer has been working fine and dandy with no problems whatsoever for the past 7 years (It was manufactured in 2003, then I got it secondhand from my dad just 3 months ago. There has been no BIOS modifications, no Overclocking of any sort, and the only hardware difference from manufacture is a RAM upgrade 4 years ago, and then I added a SSD to it about two months ago. All BIOS options are set to the default, except an option to enable the second SATA drive I added.
When I turn the computer on, I can see the BIOS splash screen, but I cannot enter the BIOS setup. It makes the usual two beeps when I press the power button. No beep codes, no nothing. It just sits there with the spash screen and the loading bar about 1/4 full.
Any help :S ?
Scott
PS: The computer is a Dell Dimension 4700 series with BIOS Revision A05. And the caps lock and scroll lock LEDs on my keyboard are lit up (they normally just flash on and off once at boot).
Last edited by Scotty (2010-09-07 20:03:21)

Scotty wrote:
So, today when I turned my computer on this morning, it would not pass the POST. I had shutdown my computer the night before with shutdown -h now (like I usually would). I did not move, bump, unplug, plug-in, or change anything at all with the computer. The computer has been working fine and dandy with no problems whatsoever for the past 7 years (It was manufactured in 2003, then I got it secondhand from my dad just 3 months ago. There has been no BIOS modifications, no Overclocking of any sort, and the only hardware difference from manufacture is a RAM upgrade 4 years ago, and then I added a SSD to it about two months ago. All BIOS options are set to the default, except an option to enable the second SATA drive I added.
When I turn the computer on, I can see the BIOS splash screen, but I cannot enter the BIOS setup. It makes the usual two beeps when I press the power button. No beep codes, no nothing. It just sits there with the spash screen and the loading bar about 1/4 full.
Any help :S ?
Scott
PS: The computer is a Dell Dimension 4700 series with BIOS Revision A05. And the caps lock and scroll lock LEDs on my keyboard are lit up (they normally just flash on and off once at boot).
The first thing I recommend is try reseting the BIOS by unplugging the power and disconnecting the CMOS battery for 30 seconds.
The second thing I recommend to remove EVERYTHING from the computer. Remove all RAM except one stick, disconnect the hard drives, CD drives, any peripheral cards, USB headers, and see if it passes POST. If it does, add one component back one by one until you isolate the problem. If it still does not pass POST with no peripherals attached, either your motherboard is shorting out, or it's bad.

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