Help!! No video output from 4850 OR motherboard.

rags_20

Distinguished
Aug 16, 2008
902
0
18,990
See my sig for my rig. I recently bought a Thermalright Ultima 90 with a 120mm 70 CFM fan, a Palit HD 4850 512 MB GDDR3 and a Corsair VX450.

Removed the mobo, installed the HSF. Reseated the mobo. Installed the VX450, connected the 24-pin Main power connector, the 4-pin CPU power connector (separated from the 2 4-pins 8 pin), connected all the front audio, USB and power button connectors to the mobo, then connected my two hard disks and my dvd-rw and my 120mm fan and 80mm fan. I connected the 120mm fan of the Ultima 90 through the 4-pin molex. Then installed the HD4850 and connected the 6-pin PCI-E connector.

powered up. mobo light glows. all fan spin. after about 5 mins., i can slightly feel the warmth in the HSF. But NO VIDEO. monitor light just blinks. no video. it is a VGA monitor connected through the adapter. I tried both the DVI ports. I ALSO TRIED THE MOBO VGA PORT. STILL no video. I'm desperate guys. Please Help!