I'm trying to install a graphics card (Sapphire Radeon 4550 PCIE-2) on a DQ965CO board. The problem is that on booting with the new card, the machine stops at the BIOS, but won't let me in to disable onboard graphics. I push the F2 key, but nothing. 5A comes up in the lower right corner.
Is the external card bad? Or what?