computer problems please help

[newwol]

hi there,
ok,
my computer is still not working
it turnson, starts loading up, then resets itself and wil keep doing this until i turn it off at the wall
i have tried replacing the ram, that didn't work
i tried running the computer on a different harddrive and that didn't work eithter, i have checked the capacitors and they all seem ok. any ideas what else may be causing the problem?

[Gatto]

"i have checked the capacitors"

How do you mean?

If you have replaced the harddrive, (with a fresh windows installation) and have replaced the ram, then this leaves PSU, RAM and Mobo.

Do you have a spare power supply unit to replace in? At this stage i'm leaning towards either a faulty motherboard or a faulty PSU. When the computer first starts up and it shows you the POST (the DOS-like text), does it give any error indications there?

G

[RecT]

How far is it loading up? Is it starting to load Windows when it resets? If so then it would probably require a fresh installation.

[2008REACT]

Have you tried reseting your board`s bios ?
If this fails have you tried reprogramming it ?
If this fails try pressing f8 during boot up & selct last knon good configaration
or try changing your boot options ?

Any thing is worth a try init !

[srynznfyra]

Reinstall windows and check - Good: solved
bad:
Run Linux off a live cd and check - [Good: try installing it to disk - good: solved, bad: faulty harddisk or SATA/IDE bus or something similar]
bad: definitely faulty hardware, do what 2008react said and select last known good config in BIOS, also play around with the BIOS config - Good: solved
bad:
Suspect faulty PSU, replace with a PSU that's known to work, and that has a high enough rating for this computer - Good: solved
bad:
Could be faulty ram couldn't it - but I'd find it more likely that it'd be the motherboard.

-Fela