Help with signal
So I have built a few computers, all work well and still do. I built my roomate one and at first I could not get power to the mouse keyboard or monitor. After upping the voltage I got the mouse and board to power on, but no signal from monitor. I have swapped out my video card into his mobo and my PSU, no monitor signal. I have tried holding the power button to clean out left over juice, nothing. I tried pulling all cards out and putting them back, negative.
Have tried 3 PSU and 2 video cards, my RAM. His mobo beeps like its ready, all fans go on including the CPU fan, but it is like the monitor is not even connected to his computer. I tried my monitor and it doesnt do anything either.
Also now the whole thing shuts off after about 4 minutes.