Noctua NH-U12F and NH-U9F CPU Heatpipe coolers
Between them the NH-U12 and the NH-U9 have won over 100 awards and recommendations from leading international web sites and magazines. So it is our pleasure to bring to you the new and improved version for these excellent CPU Coolers, the NH-U9F and the NH-U12F.

Four Dual-Heatpipes for optimal heat absorption
The Four u-shaped dual heat pipes have a huge contact area with the copper base to efficiently absorb the CPU's heat. They form eight risers to spread the heat throughout the fins.
38 aluminium cooling fins for optimal heat dissipation
Due to the surface area of more than 5000cm², the cooling fins dissipate the heat extremely quickly. There are three main factors regarding the fins that make the Noctua coolers very efficient. They are the shape, the fact they are manufactured from aluminium and the space between them. All these allow for outstanding cooling performance even with very quiet low RPM fans.
Soldered joints for optimal heat-transfer
Unlike many other coolers, whose heatpipes are stuck to the base and the fins, the Noctua coolers possess high-grade soldered joints to ensure optimal heat transfer.
Screwless fan-mount including anti-vibration strips
The choice of fan is all yours: 120mm fans provide excellent results regardless of whether noise or performance is your primary concern. Attaching the fan with the steel clips is very simple and doesn't even require a screwdriver. The supplied anti-vibration strips minimize vibrations transmitted to the cooler.

Universal fit for socket LGA775/754/939/940/AM2!
The NH-U12F and NH-U9F coolers are compatible with Intel LGA775 as well AMD's socket 754, 939 and 940 and AM2! The mounting mechanism uses a backplate and spring-loaded screws. Although motherboard removal is required installation is very simple and is very secure, thanks to the detailed step-by-step installation guide. In addition to the mounting hardware, the package contains a syringe of high-grade thermal paste.
Xeon Compatibility
Noctua have now increased the compatibility of the NH-U9F and NH-U12F with the new Xeon compatible mounting kit. The kit is compatible with Intel Xeon LGA771, mPGA604 and Xeon 5000 and 7000. Finally we have a cooler that is compatible with the Xeon socket, so at last you can replace those noisy stock coolers! For fitting instructions take a look here.

Noctua Xeon Kit for the NH-U12F and NH-U9F Heatpipe CPU coolers
What is the difference between the NH-U12F and the NH-U9F?
The major difference is the physical size of the coolers. Although the NH-U12F is more efficient than the NH-U9F, it is also much bigger and therefore may cause some compatibility problems. If after checking the dimensions of the cooler (see specifications below) it is still unknown if the NH-U12F will fit the system, then it is recommended that the NH-U9F is chosen due to its smaller size.
If there are any further questions regarding either of the Noctua CPU coolers, take a look at Noctua's FAQs for more information here.

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