Originally Posted by Dainius
pa120.3 I hear is a great rad... what fans would be good to mount to that thing? like what cfm? and the gtx480 is gonna bigger than I want to go lol... with the 240 i have and just the cpu block at about 3.6 im running about 39 at idle and around 50 at load... want a little cooler to OC some more...
the Black Ice GTX radiators need high speed fans to work best. the Thermochill PA series are designed for low speed fans, and will outperform the Black Ice GTX radiators very significantly with low speed fans.
the GTX series will catch up with higher speed fans, but for it to outperform the Thermochill, your fans will have to be quite fast/loud.
I'm currently using a PA120.3 on my 6000+ (120W TDP), which keeps it quite cool.
If you want to watercool three GTX 280's (>600W at peak), you'll probably need at least two radiators. Two PA120.3's should do it though.