The Hydro Series™ H80i GT liquid CPU cooler has an extra-thick 120mm radiator and dual SP120L PWM fans for efficient, customizable cooling for your high performance CPU. 
Compatible with CORSAIR iCUE
The Hydro Series H80i GT is a high performance, all-in-one liquid CPU cooler that works with standard 120mm radiator mounts. The extra-thick 49mm x 120mm radiator and dual SP120L PWM fans provide the excellent heat dissipation you need for high performance CPUs. It’s CORSAIR iCUE compatible, so you can customize cooling performance, monitor system temperature, and change the color of the RGB LED lighting.
The 120mm radiator works with standard 120mm fan mounts for wide compatibility, but has a depth of 49mm for increased cooling surface area and faster, more efficient cooling.
You can select the speed of the dual SP120L PWM fans via the CORSAIR iCUE control panel or any standard fan speed utility. And, you have options: use just one fan to save space, or install both in a push-pull configuration for extra cooling efficiency.
Attach the included CORSAIR iCUE cable to a USB header on your motherboard and download the free CORSAIR iCUE software to unlock even more power.
You can customize cooling performance, monitor coolant and CPU temperatures, and change the color of the RGB LED lighting from the default white to match your system or to change color based on temperature readings and other inputs.
The H80i GT is a closed loop design that comes pre-filled. It includes a modular, tool-free mounting bracket for faster installation, and it features improved coldplate and pump designs for highly tuned efficiency.
Corsair Hydro Series CPU coolers give you the power of liquid cooling in a compact, easy-to-install package. They offer superior cooling for higher overclocking performance, without the complexity of traditional water cooling kits.
CORSAIR iCUE software brings your system to life with dynamic synchronized RGB lighting, customizable fan speeds to silence fans and advanced system monitoring.
The new Intel® Socket 2011, used on the new X79 motherboards and the new 2nd generation Intel Core Sandy Bridge-E CPUs, has changed significantly from Socket 1366. As you can see below there are no longer the traditional holes through the PCB. There is now a metal bracket that has been tapped to accept M4 screws. Because of this the Corsair
Hydro Series H70, H80 and H100 CPU coolers all come with separate screws to mount on Socket 2011 boards.
Included with the H80 and H100 are four standoffs that have a shorter wider end. These are for socket 2011, the shorter end screws into the metal mounting plate on the motherboard.
Install all four of the standoffs as shown below.
After installing and tightening down all four standoffs, the CPU cooler is ready to be installed.
Next the thumb nuts are installed. Tighten these in an X pattern to ensure the pressure is even, resulting in a good mount on the CPU.
The H70 Core uses the same bracket for socket 1155, 1156, 1366, and 2011. Again socket 2011 uses larger M4 screws and does not need the backplate. Make sure all of the holes on the retention ring are towards the outside (as seen below). Then install the M4 screws through these holes.
The retention ring should then be put on the H70 Core. The H70 Core cooling unit and retention ring can then be installed on the motherboard. The M4 screws will screw right into the mounting holes on the motherboard. Again tighten these in an X pattern to ensure the pressure is even resulting in a good mount on the CPU.
