Posted 30 September 2009 - 11:09 PM
Reboot the computer and go into the bios. Once in the bios disable the on board video then turn off the computer. Install the new video card and update the ATI drivers. Your motherboard which is a M4A78T-E uses an ATI video driver already so you will just need to update the catalyst control center and driver for your new card.
Certified CompTia Network +, A +