I have just finished building the following machine:
3500 Winchester
DFI SLI-D
Asus Star Ice
Corsair 3200 Twinx
200gb SATA Seagate Barracuda
XFX 6800GT
Tagan 480W PSU
Guess what when I start it no video output!!!! All the diagnostic LEDS on the motherboard come on and there are no POST beeps. Any ideas? I have tried everything I can think of. The only problem is I have no additonal components at the moment to test it with e.g. second monitor etc.