unknown pc problem - hardware related

[imported_spot]

Hi

I?ve recently come home to find out that my cousin has switched off my pc at the wall plug(might have done it quite a few times - he's 1 year old).

Yes, this as you can imagine, is what started my problems. I then switched my pc back on and my screen and fans started up fine(they had power) and my keyboard's lights started flashing, but nothing appeared on the screen and not my hd or stiffy drive made any sounds. No beeps, no sound, nothing came from the pc.

This is what I checked:

- the cabling.
- used another screen in case my screen had blown.
- put in another screencard in case that had blown.
- took out hd in case that was the problem.
- took out all my RAM.

Still, nothing appeared on the screen when I switch on my pc and still no sounds either, except for the fans. Since the fans started up, I ruled out my psu. Only thing to my knowledge that was left, was my cpu or mobo. So, I went out and bought a new mobo and cpu(needed an upgrade anyway). But, to my surprise, when I put them in, the problem was still there. NOOOO.

Anyone have any idea what the problem might be? Pls help.

Thx

 

[DetroitSportsFan]

At this point after all you've already done to check the problem, I'd be suspecting the PSU. Its the first link between the wall plug and the rest of your system. Your PSU actually is an AC to DC power convertor that breaks down your wall voltage into the three power rails. It can be weakened or damaged and still pass power through .... but not in the way your system needs it.

Most people at the very least run a surge protector between the wall and their system. (I assume you have one of these in place.) However, in the case of a plug happy "little explorer" crawling around ... it may be wise to invest in an uninteruptable power source. This would provide some extra peace of mind and today they aren't all that expensive.

However, before running out and buying a bunch of new stuff .... try testing ALL your suspect components in a known good system. I'd start with the power supply.

 

[imported_spot]

Thx for the advise DetroitSportsFan, I really appreciate it. I didn?t know that a psu could ?half-break?. I?m pretty sure now that that is in fact the problem, but ill check to make sure. I think investing in an ups might be a good idea as well.

Thx again.

 

[imported_phenom]

Hey Spot!

Hoe gaan dit, dis blerrie plein om te sien dat jy te veel huur by jou huis betaal. Sluit die huur pc assuransie in??? Ek flippin hoop soe! Anyway jy het seker nie gecheck of jou screen nie eers gekak het nie, het jy? Nee, so flippin onosel kan jy nie wees nie. Anyway, hoop jy kom reg.

Cheers