Problem with 4850?

[ric0chet06]

Bought new parts for a pc, put them all together in the case. Everything powers on, just no video output. The HIS 4850 has 2 red led's on the top of the card that are on. Take everything out, on the table with anti static pads. Boots up, install windows, etc. Put it back in the case, same thing with red led's. They were off when pc was out of the case. Any ideas? Everything's connected correctly too.

Intel Q6600
MSI P6N diamond
HIS 4850
2x2 gb ocz dominator
160 gb IDE hd
dvd drive
550 watt Ultra PSU
CM Geminii, heat was at 30-35 c
1 80 mm intake, 1 80mm exhaust, 120mm on CM Geminii, PSU has 2 fans as well.

 

[Jakalwarrior]

You leave in a spare motherboard standoff thats grounding the mobo?

 

[ric0chet06]

maybe, i'll check. Anyone with a 4850 manual (HIS doesnt include a manual, and they dont have one online ) that can tell me what the 2 red leds mean?