ASUS motherboard problem

[ajsurkhi]

Hi
I have one ASUS m2n68 plus motherboard, when i switch on power supply cpu fan spin for few second then stop. After pressing ps-on switch nothing happen.
I visually check all caps, all look like ok. what anything else, is there any capacitor problem or bad chip like sio chip or anything else.
please help.

[stj]

Re: ASUS motherboard problem

did you try another psu?

if you did then check the motherboard for shorted fet's near the cpu

[momaka]

Re: ASUS motherboard problem

Remove the 12V 4-pin connector for CPU power. Does the PSU turn ON with the motherboard showing no video. If YES, you very likely have a shorted MOSFET on CPU VRM. If not, then there may be a shorted MOSFET elsewhere *OR* your PSU may be bad.