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NH-U12P SE2 

Installation 

Manual 

   INTEL

Removing the mainboard

Step 1:

In case you want to use the cooler on an assembled system, 
you first have to remove the mainboard from the case in order 
to be able to install the supplied backplate.

Caution: On LGA1366 and LGA1156/1155, the supplied back-
plate will install over the mainboard’s stock backplate, so the 
mainboard’s stock backplate must not be taken off.

Required mounting parts:

First put the four bolts into the holes appropriate for your 
mainboard’s CPU socket. 

Setting up the backplate

Step 2:

Thank you very much for choosing a Noctua cooler. 

This manual will guide you through the installation process 
of the SecuFirm

tm

 2 mounting system step by step. 

Prior to installing the cooler, please consult the 

compatibility list on our website and verify that the cooler 
is fully compatible with your motherboard. Should you 
encounter any difficulties, please check the FAQs on our 
website and don’t hesitate to contact our support team at 
[email protected]. Noctua cannot be held responsible for 
any damage or losses caused by compatibility issues.

Multilingual versions of this manual are available 

on our website: www.noctua.at

Caution: Please verify that all four bolts are put into the 
appropriate holes fully pushed in. 

Step 4:

Installing the mounting bars

First put the plastic spacers onto the bolts, then add the 
mounting bars.

Noctua NH-U12P SE2

Installation Manual

4x plastic spacers

4x thumbscrews

1x 3-in-1 Intel backplate

4 bolts for backplate

2x fastening brackets

4x short screws 

2x mounting bars

For use on LGA1366 and LGA1156/1155 mainboards, please 
remove the rubber inlay. Make sure that the rubber inlay is 
in place for LGA775.

LGA1366 & LGA1156/1155

LGA775

Caution: On LGA1156/1155, please make sure that the two 
cuts in the supplied backplate align with the screws of the 
mainboard’s stock backplate.

Caution: Choose the alignment of the mounting bars according 
to the desired final orientation of the cooler: 

Orientation A

Step 3:

Attaching the backplate

Place the backplate on the rear side of the mainboard so that 
the bolts stick through the mounting holes.

Caution: Make sure that the curved sides of the mounting bars 
are pointing outwards.

Orientation B

LGA775 rubber inlay 

LGA1366 (80mm)

LGA1156/1155 (75mm)

LGA775 (72mm)

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