hello there.
im glad that i have found an active thread about this because i have 2 unsolved question.
1: is the ASUS P6X58D-E able to run TWO 9800GX2 Cards with all 4 GPU´s?
asus product spec. says quad crossfire will work, 3 way sli will work but they dont talk about quad sli. (i know there are one million better solutions then running two 9800gx2 but i have them here, dont need to buy new stuff, want to use them)
2: is the OCZ750FTY Fatal1ty 750W enough for BOTH cards? or even for one? :4-dontkno or do i need to upgrade psu?
OCZ 750W Fatal1ty Series Power Supply - OCZ
lg, guatimo
EDIT EDIT EDIT EDIT EDIT:
Question
2 solved. Any 750W PSU seems to be not enough to run 2*9800GX2 in any stable, safeish mode. (its possible but not recommended)
OCZ and Corsair GPU Calculators says i need at least 850W to run them stable, but of course with 950W im on the really safe side. So for all guys who read this:
when you want to run 2*9800GX2 and you
HAVE a 800-850W PSU - use it and just try it out.
but if you need to buy a new one
anyway use a psu calculator and choose at least 850W minium - better 950W so you dont run your psu on 100% all day long.