[mtchllro]

Rip my friends pc .
I am looking at a freinds pc when the power switch is pressed the power light comes on the fans (case and cpu) twitch and the HD light flicks on then off and thats it no beeps th monitor stays in standby (or when turned on it states no signal).
I've tried booting with the Ram,Video card,HD,Cd rw and Floppy disk disconected and its still the same.
This leads me to think its either the Psu or Cpu at fault now there is a small green led light on th
e motherboard lit up (near the cmos battery) is there anyway to find out which is at fault .(my friend is a single mum an can't afford much so I need to find out gertting both is not an option).
Thanks in advance for looking ....

[jack-o-bytes]

Firstly if you can get your hands on a known working PSU from another computer you could put that in. Also check the motherboard for blown capacitors damaged capacitors will now hold enough charge to power the cpu when under load. Maybe sometimes not enough to allow it to boot. Blown/Damaged capacitors will have a brown rust looking substance on the top of them.

[mtchllro]

I've only got a spare amd cpu and its a different fitting (about twice the size lol) as to blown capacitersetc I've looked over the motherboardboth sides with a magnifiying glass and theres nothing that stands out.
I wil have a look and see if I have a compatable psu but don't think I have this case is slim ...

[jack-o-bytes]

So long as the large 20/24 pin and small 4/8 pin (if needed) can be plugged in as far as I know you dont need a slim. Just have it laying outside the case

[mtchllro]

Will carry on tomorrow if I carry on tonight then mistakes are bound to happen as I'm tired thanks for the response...

[Byteman]

Hi,

I don't expect you to stay and do anything now.....anytime is fine.

When you look for bad capacitors, they do NOT have to have any rusty brown leakage to be bad, I replace boards that do not boot that have bad caps and they are only slightly BULGED UP. Brown leakage is twice as bad.....don't even start it anymore, they can pop and if you get it in your eye, well, see you in surgery....

When working on this, if you later on decide or a tech asks if you want to replace the board, it is also wise to replace the power supply. I have seen some times you absolutely have to, and some I did not have to.... just taking a chance, at the direction of the owner and after we discussed the costs etc, they agreed to chance it.

Time you put in a good upgrade power supply and a new board perhaps you might better get a new computer....

I've run into the situation also, where the customer's son had messed around, trying to get it to start up, and the ONLY problem was a jumper he did not replace correctly. He wanted a new PC!