Here is the issue. I have a system that will boot up with no errors. I log in to the system and then after about three minutes it shuts off the monitor but the system continues to run. The video card is integrated and I looked in the device manager and it doesn't seem to have any problems there. I believe its a faulty power supply and unfortunately I am not allowed to test the power supply. I just want someone to confirm my suspicions. I run diagnostics on the memory and harddrive and everything passes.