Hello all,
This is my first time posting here, I built this system 8 months ago.
[Amd Phenom X4 9850BE with Biostar TA790GX 120M. Everything is working fine with the internal graphic card. Yesterday, I decided to install a new graphic adapter (ATI4670IcedTurbo 512MB DDR3). I can get the card to work with or w/o disabling the internal graphic card. If I just leave the graphic card sit in the slot, it will work. Once I screw the card to the chassic, I get blank screen. If I disable the internal graphic and put the dump peddle in the slave pcie slave slot, I get blank screen. I looked for resource on the net and follow some of the tips, I still have the same problem, seems like i will have to disassemble my system and do a bench test. Just want your input.

THX

remove motherboard and reseat motherboard should help with finding bad earth or loose screws.

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