Originally Posted by CDdude55
nvlddmkm.sys crashes are generally related to the drivers and not the cards themselves, if your PSU is sufficient enough to handle the cards, it would just shut itself off, but getting a second card should be fine and shouldn't cause any error.
Also as said, 1000w is a bit on the low side for that setup, as GF100's are some beastly and power hungry cards, running two of them in addition to an i7@ 4GHz, you're gonna need a quality PSU with a fair amount of more wattage.
I think i might hold off on two cards for awhile.
Will be getting the Artic Cooling Xtreme Plus...might render my card overclockable. We will see! Thanks everyone!