Hello, I just put an old system together for my nephew. It's an ASUS P4P800-E Deluxe. MoBo is good, memory is good, power supply is new and good. video card(s) are good along with the monitor(s) Now, when I turn on the power supply, everything works, but there is no video display. I changed the video card three times, then tried two different monitors. Can anyone give me ideas what to look for or do next. I'm almost there, but no video. I've appreciate all the assistance I've gotten from MDLF, and I rely on MDLF because there is no BS, and there a lot of very talented and knowledgeable people that support MDLF. Thank you again and in advance for assistance with this minor issue.