Thread: Computer won't display anything

Well I am at work right now and after getting blasted with an electric field the unit we are testing shit the bed. We are trying to figure out what the problem is but the representative from their company doesn't know much and we are having trouble figuring it out. Initially the 4th computer fucked up but it turned out to be 2 blown fuses. Now that one works but the 3rd one won't display anything. We assumed it was the video card but switching it out with the 2nd cmputers graphic card didn't help and the 3rd computers graphic card worked no problem in the 2nd one. Any idea what could cause the 3rd computer to not display anything even if the graphics card is seemingly fine?