upgraded pc wont start

[86isuzu]

Ok, so as the title implies, I upgraded my computer today, and now it won't fire up.
I installed a 2nd GPU (MSI HD5770), and swapped the stock cpu cooler and fan for a big ass cooler master 212 with 2 120mm fans.

I've looked back inside the case to see if I forgot to plug any wires in.

My theory is its just too much for the PSU (Seasonic 520W)

Here are my specs pre-modded: 2.9 Ghz quad core i5, Gigabyte mb, MSI HD5770 gpu, 8GB DDR3, 3 SATA 6 HDDs, 1 old IDE HDD, 2 opticals, and 6 120mm case fans.

Whadaya think, the ol' psu not up to snuff?

 

[kimcrwbr1]

Have you tried running the bios setup to see if it is recognized? Depending on your bios press F2 about 5 times after you turn the power on.

 

[adsm08]

I could be wrong, but I get the impression that it won't turn on at all.

Try unplugging the new hardware and see if that fixes it. You can run for a short time with no fans and not damage anything.

 

[86isuzu]

You are correct adsm, nuthin happens. I removed the GPU, no dice. I'll try unplugging the case fans. I'd rather keep the cpu one

 

[86isuzu]

Odd...I just went over to the computer and a couple of USB acc were lit up. Pushed the button and the sucker fired up. I'd say the GPU is to blame.

 

[86isuzu]

Just popped the 2nd gpu in and everything is working. Loose wiring is the only thing I can think of. Thanks for the help