A few weeks ago my computer would powerup for 2 seconds then power down everytime I would hit the power button. I bought another motherboard and now it wont power on at all.

Things that changed. This motherboard now has a 8 pin (ATX12v2), my previous motherboard was a 4 pin connector from the powersupply to the board. Anyways on the coolmaster power supply I saw 2 4 pin connectors (one labeled p2). So I figured if I could plugged both 4 pin connectors into the 8 pin connector so it would work. Still nothing.

Now I am thinking it may have been the power supply that is bad.

This post was edited by drew2128 on Nov 16 2016 03:45pm

Paperclip test the psu.

Coolermaster doesn't make very good PSUs.

If it fails the paperclip test, then you can probably assume you have a dead power supply.

I just bought a EVGA well see now.

Well let's hope you got one of the good EVGA PSUs.

Good ones:

G2, GS, G3 (new), P2, T2, B2, PS.

I may be biased, but the only psu's I buy anymore are Corsair.

ok im frustrated now. I replaced the motherboard and the power supply and it still will give me no power -.-. I didn't buy a new processor. What else could it be?

check your outlets