Is G31M-ES2L motherboard compatible with Asus NVIDIA GeForce GT 730, 2048MB, DDR3, 128bit, HDMI, DVI, VGA,

clutchc

Titan
Ambassador
Since the board is so old, be sure you have the latest BIOS. If the card isn't recognized (unlikely) that could be the reason. Try it as is first. Updating the BIOS on those older boards can be tricky. No sense doing it if you don't have to.