Site updated: 23.3.19

Was a bit unsure at first

Was a bit unsure at first, but wow, so cheap and such quick delivery! Great store! (31st December 2018 via Trustpilot)
NM-I3 Intel Mounting Kit for LGA775, 1156 and 1366

Noctua NM-I3 Intel Mounting Kit for LGA775, 1156 and 1366

The NM-I3 SecuFirm2™ Mounting-Kit makes all Noctua CPU coolers compatible with Intel's LGA1156 & LGA1366 sockets for Core i5 and Core i7 processors. Designed to combine outstanding reliability, optimal contact pressure and easy, straightforward installation, SecuFirm2 is an enthusiast-grade mounting system that meets the highest demands in safety, performance and ease-of-use.

NM-13 Mounting Kit
NM-13 Mounting Kit

Ultimate Reliability

Noctua's SecuFirm™ mounting systems are renowned for their excellent reliability, minimise the stress on mainboards and make it possible to transport the system without uninstalling the CPU cooler. With tens of thousands of units sold, there's not a single known case of failure.

Backplate with Screw-Threads

SecuFirm2™ utilises a backplate with screw-threads that simply installs on top of the stock LGA1366/LGA1156 backplate. Not having to remove the stock backplate significantly reduces overall installation time and eliminates the risk of damaging the CPU socket. Thanks to the screw threads, the backplate can't slip during the installation process.

Integrated Fastening Brackets

Fully integrated fastening brackets with fixed pressure screws and springs greatly facilitate the installation process. No more fiddling with screws and springs!

Maximum Convenience for Enthusiasts

Thanks to the use of separate mounting bars, uninstalling and reinstalling the cooler only takes two screws. Loosening two thumbscrews gives full access to the socket without the backplate falling off, making it a child's play to change CPUs even if the mainboard is installed inside a case.

Backwards Compatibility

SecuFirm2™ is fully backwards compatible with all Noctua coolers since 2005, making them safe long-term investments that can be used for several CPU generations.

PLEASE NOTE: Owners of Noctua CPU coolers can obtain the NM-I3 Mounting-Kit free of charge via Noctua's website. Proof of purchase (photo, scan or screenshot of the invoice) of both a Noctua CPU cooler and either a socket 1156/1366 mainboard or socket 1156/1366 CPU are required.


  1. Provides i5 and i7 compatibility
  2. Works with all Noctua CPU Coolers
  3. Very secure mounting
  4. Requires motherboard removal

Socket compatibilityLGA1366, LGA1156, LGA775
Supported CPU seriesIntel Core i5 & Core i7
Cooler compatibilityNoctua NH-C12P, NH-U12P, NH-U12P SE1366, NH-U9B, NH-U12F, NH-U9F, NH-U12, NH-U9
Warranty72 months

Our Address

Quiet PC Ltd
Brawby Grange
YO17 6PZ
United Kingdom

Our Numbers

Useful Information

Keep In Touch

MasterCardMaestroPayPalAmerican ExpressVisaVisa Electron
30 day money back guarantee
2 year warranty

All prices exclude import tax. © 2000-2019 Quiet PC Ltd. If you have seen an error on this page, please let us know.