Originally Posted by Scrappy
I'm going to steal that processor
How in the hell did you manage that on air?
The stock Noctua NH-DH14 doesn't move enough air. ~50 - 70cfm per fan iirc. I have the Coolmaster 922 pushing close to 800cfm total (2x200mm+6x120mm not counting PSU fan). That helps alot...
The real trick was fiddling with the amount of Artic MX-4 (took 5 tries to get that right for about 3C drop) and modding the Noctua did the rest. I removed both Noctua fans. I replaced them with 120mm Silverstone 1900rpm 28db 110cfm fans. But the catch is I didn't do the fans the way Noctua does. I have one fan on the front blowing through the Noctua and one fan on the far side pulling through the noctua. The middle fan was removed and that spot is empty. The two 120mm 85cfm fans on the side of the case line up so that they blow right into the center opening of the Noctua where their center fan used to be. I then made an air baffle out of plastic that forces all of the air going through the Noctua out the back fan opening. Cables are all tied back out of the way so I have straight thru airflow. We are moving a lot
of air (if I did my math right all of the air in my room passes through the Coolmaster 922 once every two minutes - room=12x12x10). This resulted in another 6C-7C temp drop.
Prioir to doing this I was getting high 70's and low 80's on Prime95... this combined setup dropped the temps ~10C across the board so I'm hitting the occational 68C on Prime95.
FYI: I've had it up to 104.5 x 55 for 5747.5MHz (1.55v) but I need to fiddle a bit more with the thermal paste (new brand maybe) because it was stablish at that setting but Prime95 hit 89C so I killed it... I don't plan on running it at this higher setting just wanted to see what she'll do...
I decided to post the pictures in the Intel Air Cooled sub-forum. Didn't want to spam a bunch of pictures over here... here's the link:
Air Cooled 5GHz i7 2600kEdited by baj2k - 5/16/11 at 2:54pm