Computer wont boot up

[ripken204]

well does your mobo have diagnostics lights or beeps? mine has some lights and if something is messed up, one of those little lights wont show up or will be red.

[jcarle]

A motherboard which will not POST does not have the video card as an issue.

Motherboards which do not POST will usually have their problems revolving around four primary areas. Power, Motherboard, CPU and RAM.

If the CPU fan is turning when you try to start the computer and there is still no POST, chances are the problem is with your RAM. Try removing your stick of RAM and gently clean the pins of the stick of RAM using a white eraser. Then re-seat the RAM and try again. If that doesn't work, try using a different stick of RAM. If you still don't POST, try using a different power supply. It's possible that your motherboard may simply be dead, check it for leaked capacitors.

[RJARRRPCGP]

That thing first crashed in the middle of use, then didn't boot windows (every time another defective file) and after that showed me a BIOS checksum error, only to boot up the next day I tried it.

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http://www.memtest.org/

That sounds more like a bad overclock. The temps may be too high for the overclock to work properly. Sorry.

It's likely that the temps are sky high! (I mean around 160F (70C) , if not 180F (90C or around there) or around there!)

Edited April 18, 2007 by RJARRRPCGP

[the_anomaly]

Helloo!!!

Ive been busy with some presentations on my project work.

Will resume diagnosis today....will try to get my hands on some sticks of working RAM

i appreciate the response

Thx

[RJARRRPCGP]

Another time it started and there was this screeching noise ...

A screeching noise sounds like a hard disk drive failure.

[nmX.Memnoch]

A bad hard drive wouldn't result in a non-POSTing system though. It may have been a fan...

I've also heard PSU's make some weird noises when they go bad. My bet is either with the RAM or PSU (and more likely the PSU).