Intel Core i5 2400, 4 gb DDR3-1333 ram,
2x 500 gb hdd,
asus p8h67-m lx mobo
Are these the specs of the pc? Then the integrated has no dedicated memory, a big fat zero. It "steals" ram to use as it's memory. Also it works completely independently from a discrete card so will not affect it. If you have no monitor in the motherboard than it is off already.