Computer won't turn on after upgrades - please help!

Dianthis

Honorable
Oct 13, 2013
4
0
10,510
I just installed a new Apevia 650W PSU and a Gigabyte 7870 GPU into my Gateway DX4860-EF12P. When I go to turn it on, the PSU, GPU, CPU fan, and cooling fan all turn on but don't stay on for more than a second. Any ideas?

Thanks in advance!
 

Dianthis

Honorable
Oct 13, 2013
4
0
10,510
Thanks, but now that I've plugged the 4-pin connector into the mobo for the cpu, (which was the step I forgot), the computer won't even start. Could the psu be fried after all the attempts to start the computer?
 

jamesanyoung

Distinguished
Aug 26, 2013
222
6
18,715


Did you solve this?
 

Dianthis

Honorable
Oct 13, 2013
4
0
10,510

Yes.
 

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