Fan Speed: 900 ~ 2000 RPM (Controlled by PWM signal)
Air Flow: 36 CFM / 62 m3/h
Cooling Capacity(max.): 90 W
Bearing: Fluid Dynamic Bearing
Noise Level: 0.4 Sone @ 2000 RPM
Fan: 92 mm
Dimensions (WxLxH): 96 x 100 x 87 mm
* Product descriptions and part numbers are subject to change, and may not reflect manufacturer product changes. Please check the manufacturer's website and use the item's manufacturer part number to find the most up to date product description.
These are great cooling solutions, and would be a 5 rating for a 775 socket, but...
They will not work on any Socket 1156 board I've seen. The heatsink is large and flat on the bottom and comes in contact with the motherboard capacitors. I tried it on a Gigabyte H55M-ud2h as well as a biostar Th55b-hd with the same problem
In looking at photos of other 1156 boards, I see all of them have the capacitors lining the cpu socket so I seriously doubt it will work on most 1156's.