I picked up some Dell GX560's (I think thats the model) g'ment surplus. Got four of them dirt cheap knowing that probably were not working. Being G'ment they come minus a HD. My goal was to make two working computers to replace to aged ones in my house. My wife wants to start working at home one day a week and we need another decent computer.
Finally got around to working with them. I put an old HD in them and loaded W2K OS. One would give me random errors. Sometimes it wouldn't recognize the keyboard or mouse, next time it would but could find the OS on the HD. Pretty sure that one has a bad MB.
Two others give me the same (but different than the first) error. It can't find the OS. Thinking it might be a bad HD, I pulled one from a working computer that I knew was good. Installed the OS on there and get the same error. Can't find the OS. In order the eliminate hardware issues nothing but the CD drive that I installed the OS from were connected.
I am thinking that I am dealing with bad MB on these two and that is why these were pulled from service. When I picked them up I went by a conference room with probably 50 or more work stations set up. So they obviously go through a few units. And being G'ment don't fool with repairing them.