I recommend the new Thermalright SI-120
I just changed from the Big Typhoon and temperatures are similar, but the SI-120 is MUCH EASIER to install.
The Typhoon fits on the DFI mainboard but it is very difficult to install due to POOR ENGINEERING skills from Thermalkate. You have to apply some He-Man force during its installation and I almost destroyed my mobo due to a loose screwdrivers. I was very lucky and because of that would never bother to install a Typhoon again.
I tried the SI-120 on both a SLI-DR and the new SLI DR Expert board.
Easy, painless installation (1 minute) and plenty of room for your ram sticks. Also nice cooling for the components nearby.
I am running the SI-120 on a Opt.170 clocked to 2.6GHz @1.48V. Temperatures are 28C iddle 38 Load on an Antec P160 case.
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