I wasn't sure where to put this so I put it Gen Hardware. I built up a second computer a few days ago, the parts were composed of. MB: Gigabyte GA-965P-DS3, Revision 3.3 CPU: Intel Pentium 4 650 @ 3.4Ghz RAM: 2GB DDR2 Corsair PC6400 4-4-4-12, 2.1v GPU: Connect3D ATI Radeon X800GTO PSU: 400W Generic Power Supply (came with the cheap case I bought) I had tested some parts and they work fine, but I was unable to test the MB, I put the system together out of all the parts above, hooked it up to a monitor, turned the power on and this is the frustrating part, the processor fan, case fans and GPU fan all span but the monitor just stood in standby mode and the MB did not even beep once, does anyone know what could possibly be causing this? More info about the MB here: http://www.gigabyte.co.nz/Products/Motherboard/Products_Overview.aspx?ProductID=2456 EDIT: Things I've done: Checked the processor, it's seated perfectly with nothing stuck between it and the socket. Took the CMOS battery out for a whole 30 minutes yesterday, after that failed I used a jumper to reset too, still nothing, battery is working however. Tried one stick of RAM, RAM stick works fine but still nothing from the monitor. Double-Checked all wires, everything is securely fitted.