Computer Starts, Doesn't Boot, Moni

Hewlett-packard / Pavilion a287
February 16, 2009 at 14:07:52
Specs: Windows XP, 512MB DDR PC3200
The problem: Turn on computer, nothing displays on the monitor. I
don't think it's booting into Windows because I don't hear fans
speeding up/slowing down, which means it's probably not even
getting into the BIOS.

What I've done so far:
- Tried more than one monitor. Neither original nor new one
display anything, whether it be just by showing a black screen or
saying "Going to sleep."
- Swapped video cards, nothing changed.
- Swapped RAM, nothing changed.
- Unplugged HDD, nothing changed.
- Tried a new PSU, with literally nothing getting power except the
mobo, nothing changed
- Never get any POST beeps.
- No strange noises like whirring, clicking, etc.

Notes:
- This is a customer's computer (I'm a repair guy). So I don't
know much about the history except that she bought it used 3 years
ago from a computer store that no longer exists.
- I have NOT reseated the CPU because I don't feel like it's a CPU
issue, though of course it's possible. And I don't want to go
through the hassle of that if I don't have to.

Specs
- Computer: HP Pavilion a287 with what seems to be all stock
parts:
- Motherboard: MS-6390 (KM266 chipset), Socket A/462
- GPU: e-GeForce FX5500
- CPU: (Can't tell, underneath heatsink)
- RAM: 1x Samsung 512MB DDR PC3200
- HDD: WD800
- PSU: Max output = 250W

What do you think?


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#1
February 16, 2009 at 18:10:21
"The problem: Turn on computer, nothing displays on the monitor. I
don't think it's booting into Windows because I don't hear fans
speeding up/slowing down, which means it's probably not even
getting into the BIOS."

Those symptoms are consistent with a bad cpu


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#2
February 16, 2009 at 21:35:07
What is it, specifically, that causes this
problem? Just the CPU going bad over a period
of time? Was it possibly the user's fault? I
just want to make sure I know what to tell
this woman about possibly changing future
habits (whether it be her own, or just how to
buy a better computer).

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#3
February 16, 2009 at 22:44:49
What probably happened was the power supply went out and took the motherboard with it. This is common. This why you still don't get beeps with a different PS installed. The CPU/RAM/HD/CDRW are usually OK in this case. CPU failures are possible, although rare.

Tell the lady to get a new PC. Alternatively, you may be able to find a replacement motherboard on EBay. It doesn't have to be an exact model, but it does have to be the same CPU socket type and form factor as the previous motherboard.

This one should work:

http://cgi.ebay.com/HP-COMPAQ-CROSS...

WinSimple Software


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