2yr only Dell prebuilt pc no longer displaying through screens

supernova_inc

Reputable
Oct 14, 2014
1
0
4,510
Hi, I was trying to get a little help with a work computer. I have a Dell mini tower that has dual screens. It has a new GPU card installed within the last month and a new power supply within the last 2 months. Today one of the screens went black, then the other did soon after. The computer is still "on" but nothing shows through. I have restarted, pulled the case and double checked the connections. I swapped an old GPU into the motherboard to see if it was that. I have also done the same with a spare power supply we have. I am still having the same issue with no output going to the monitors. I run Windows 7 pro. I was thinking possibly the mobo may have gone but I am really lost on this. I am somewhat handy with swapping new parts and building my own machines but this work computer I don't know what to do other than verifying it doesn't appear to be the vid card or the pwr supply. I have plugged one monitor into the original on board video out and that does not register anything either.