New PSU, No Display and USB Ports Unresponsive

Michael Franco

Reputable
Aug 22, 2014
1
0
4,510
About two weeks ago I was playing Mafia II on my PC and about 10 minutes into my gaming, my PC just randomly shut off. I tried to turn it back on, but it wouldn't work. I ended up contacting the seller of my PC and they sent me a new "Antec 450W PSU".

I installed the new PSU and to the best of my knowledge I think I have everything hooked up properly. My PC turns on, the LED lights turn on, and all of my fans start blowing... yet I don't get any display on my monitor through my HDMI cable, and my USB keyboard and mouse don't light up or work.

I tried plugging a flash drive into the USB ports on both the front and the back but even then it won't work. Usually the flash drive would glow orange telling me that it's working.

Does anyone know what's wrong or how I can fix this? Please help and ask as many questions as possible and I will try and answer them to the best of my ability.

- Michael