Amateur(possibly idiot) here.
Last night I was finding my computer fans too noisy so I decided to crack open my case to identify which was the culprit. I found the case fans being connected to molex connectors and was able to disconnect/stop them one by one. I couldn't find my cpu fan connection on motherboard or anywhere(it was hidden) so I decided to just pull the ATX12V plug for a little while. It stopped the cpu fan and I found out that my graphics card was the noisy one. All was still well so I plugged everything back in, closed case and turned in for the night.
This morning I wake up and turn on the computer to find the display not showing anything. Orange light at monitor but no graphics. I open the case and find the graphics card fans not spinning. I thought maybe my ATX12V was messed up so I turn off computer and plugged in the other 4pin counterpart. Restarted and all fans were on for a few seconds then cpu and gfx fans went off. I restarted again to see and now system would not turn all at all. No case fans or even lights.
After a while of contemplating I came to the conclusion that I might've short circuited my board so I took a old PSU to test. I unplugged most connections on the current PSU and connected only the 12pin and ATX 4pin from the old PSU into the motherboard. The cpu and gfx fans actually start up. Did I fry my current PSU?
amd phenom ii x6 1100t
cx500 (current possibly fried PSU)
Thanks in advance