I am an IT technician working on an HP xw8400 workstation. The specs on the system are dual intel xeon processors, 16GB RAM, and an MSI graphics card (it's a clients computer, I don't know the exact specs). Well we recieved this system with a bad motherboard, DIMM slots 2 & 4 did not work. I replaced the motherboard, repasted and reinstalled the processors, put known good RAM in the system (because there might be a problem with his RAM), and after fully reassembling the system I get no video output. There are no connectors on the motherboard to test the integrated graphics. l've been fiddling with it for over an hour now and can't figure it out. Any help would be greatly appreciated. Thank you.