Cpu power problem

[wale]

I have a Gigabyte GA-G31M-ES2L which was working fine at the beginning when i was setting everything up. later on i try to screw the motherboard to the case while the m/b was turned off, but eventually the motherboard stop working so and I figured out that when ever the cpu power is connected it doesn't come on anymore.... i've tried resseting the m/b, used different psu,case, and i took everything connected to the motherboard off.... it comes on when I unplug the cpu power but not when it's connected....

 

[r_manic]

Hmmm... try another CPU? You can loan a similar CPU from a friend or something.

 

[bilbat]

Once again, most common cause here is a mounting standoff in an incorrect position, causeing a short - carefully check that there is a mounting hole in the MOBO for every position you have a standoff installed at...

 

[shortstuff_mt]

http://www.tomshardware.com/forum/261145-31-read-posting-boot-problems