Noctua NH-U12S User Manual

Lga115x

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Required mounting parts:

Dear customer,

Congratulations on choosing the Noctua NH-U12S.
The NH-U12S is the latest version of Noctua’s award-winning NH-
U12 coolers. First introduced in 2005, the NH-U series has become
a standard choice for premium quality quiet CPU coolers and won
more than 400 awards and recommendations from leading inter-
national hardware websites and magazines. Enjoy your NH-U12S!


Yours sincerely,

Roland Mossig, Noctua CEO

This manual will guide you through the installation process
of the SecuFirm2™ mounting system step by step. Prior to
installing the cooler, please consult the compatibility list on
our website (www.noctua.at/compatibility) and verify that the
cooler is fully compatible with your motherboard. Should you
encounter any difficulties, please check the FAQs on our website
(www.noctua.at/faqs) 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/manuals

Removing the mainboard

In case you want to use the cooler on an assembled system and
your case doesn’t have a cut-out at the rear side of the mainboard
tray, you first have to remove the mainboard from the case in
order to be able to install the supplied backplate.

Step 1

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

2x NM-IMB3 Mounting Bars

1x NM-IBP2 Backplate

4x NM-ITS1 Thumbscrews

4x NM-IPS1 Spacers

Applying thermal paste

If there are residual traces of thermal paste or thermal pads on
your CPU, please clean them off first. Then press a small drop
(4-5mm diameter) of NT-H1 onto the centre of the heatspreader.

Caution: Applying too much thermal paste will lower heat
conductivity and cooling performance!

Step 4

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

Caution: Please make sure that the three cut-outs in the sup-
plied backplate align with the screws of the mainboard’s stock
backplate.

Installing the mounting bars

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

Step 3

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

Fix the mounting bars using the 4 thumb screws.

Caution: Gently tighten the screws until they stop, but don’t use
excessive force.

Attaching the backplate

Caution: The supplied backplate will install over the mainboard’s
stock backplate, so the mainboard’s stock backplate must not be
taken off.

Step 2

Orientation A

Orientation B

Fastening the heatsink to the CPU

Caution: Please first take off the fan as well as the protection cover
at the bottom side of the heatsink.

Step 5

Noctua NH-U12S | Installation Manual | LGA115x

LGA115x

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