Originally Posted by Nukem
Reviews and recommendations all call for a PSU of at least 52Amps on the +12v side. Your PSU looks to have 32... so you might com up short in power for a 260. but your mobo is good for being able to handle it.
Whoa, 52A seems way too much for any single card system. BFG state that 38A is needed on the 12v rails on a system with a QX9650. Still alot, but if it were 52A it would need a corsair 650TX just for a single gpu.
Either way though, it looks as the PSU you already have will not be enough to power it. It seems any version of the 260 will be too much for it, so maybe check out the rating of HD4870s or get a new PSU.