anybody have any idea how to go about installing snow leopard on this this board g31m-e2sl ?? graphic card is a PCIE ATI HD 4300 processor is an Intel Pentium D 3.00 ghz CPU

ive attempted several times i always get a kernel panic or in one case a grey screen with nothing not even the mouse? im wondering if should take out the graphics card and give it a go with the onboard card? can i then later install the card without any issues