computer wont turn on

[jhooga]

im putting together a new computer and i put it all together plugged it all in the power button lights up and the light on the power supply is on, i hit the power button and nothing at all. I tested the power supply on another rig and no problems, i tested power button on another motherboard and it fired up, is it possible motherboard is no good?

 

[lubo4444]

Did you install correctly the little pins that go between the case and the motherboard?

 

[jhooga]

there is an incorrect way to do that? but yes i did do that.

 

[linkin]

There are many incorrect ways, if it's not connected properly, your LED's won't work, or will be constantly on, or your power/reset buttons won't work.

Look in the motherboards manual for the correct way to hook them up.

 

[jhooga]

ill have to check out the manual and see if i have it backwards or something cuz i have no power at all. Question though and i kinda think this may be part of the issuse. I took an old P4 emachines computer and replaced the mobo cpu ram hd but i left the original psu from the old machine. Is it possible that the psu isnt compatible with the new parts??