Hmmm. I seriously doubt that would be enough rad for that Oc on the 930. I recommend at least a 2x120mm rad with 4 fans in a push pull config.
You could go with this kit: Swiftech H20-220-APEX ULTIMA CPU Liquid Cooling Kit w/ Apogee XT
for $240 and add 2 more fans and it should cool it quite well.