I just purchased a second hand server and has the duel Xeon processors. When i got it worked but now it will only load the first part of an operating system and when it goes to reboot to finish with it, keeps giving me and error message and tells me to remove any hardware. I have tried 5 different hard drives with the same messages. I have tried IDE and SATA and still get the same answers. There is not a reason in the world this system shouldn't work.