Mobo Or Psu dead?

[barret88]

Ok so I have purchased a new mobo for my p4 2.4ghz cpu. A friend gave me a 350watt psu which is fairly new and worked on my old machine. Every single spec. matches up with everything I have plugged up, even the pwr switch, leds and such but the thing won't turn on. I notice when I flip the power switch in the back, the cpu fan spins about a centimeter then stops. What could be the problem, psu bad?

 

[pelvis_3]

I would try another PSU in it to be sure!

 

[Matt555]

Have you got another PSU to try it with?

 

[barret88]

I have no other power supplys at the moment, do all motherboards have a light that lights up on them when they have power?

 

[pelvis_3]

Not all do, but most recent ones namely from ABIT

 

[Matt555]

Not all motherboards do no.

 

[Matt555]

Have you tried it with only the Motherboard, CPU, RAM and Graphics (maybe even without graphics if your motherboard lets you boot without them - if it's onboard then graphics doesnt really matter)
[ot]hehe pelvis_3, just beating me to every one :P[/ot]

 

[barret88]

ok I just tried doing what you said, this time when I hit the switch in the back to give it it power, the cpu fan spins for about 3 seconds then stops. Still wont turn on though.

 

[pelvis_3]

Do you have the ATX 12V power line lugged into your motherboard?

 

[barret88]

the one with 4 pins? yes.

 

[barret88]

My Aim name is my_wiretap if you have it.

 

[pelvis_3]

Try swithching the Power Switch pins around, although i don't think it'll help!

 

[Matt555]

Switching pins won't help, it's a straight SPST switch meaning either way it's going to do the same thing, if it was a more advanced switch then it would make a difference, otherwise, it won't.
Have you tried with only one stick of RAM if you have 2? then changing sticks to see what happens?

 

[barret88]

just tried that, did nothing.

 

[Matt555]

What went wrong with your old motherboard?
What are your full specs?
What is the PSU make/model?

 

[barret88]

well, I got the power supply working and the computer will turn on, the problem now is that I get nothing on my monitor, I tried two different monitors. There is no video card plugged in either, I plug up to the onboard video port, I can't figure this out.