First screw the NM-IBT2 bolts into the screw threads of the
LGA20xx socket frame.
Installing the mounting bars
1
Then put the NM-IMB3 mounting-bars onto the bolts.
Caution: Choose the alignment of the mounting bars according
to the desired final orientation of the cooler:
Caution: Choose the alignment of the mounting bars according
to the desired final orientation of the cooler:
Orientation A
Orientation B
Dear customer,
Congratulations on choosing the Noctua NH-U12S chromax.
black. 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 international 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.
Please also make sure that your PC case offers sufficient
clearance for the cooler and that there are no compatibility
issues with any other components (e.g. tall RAM modules).
Double check that the heatsink and fan clips do not make
contact with the VGA card or other PCIe cards. Noctua cannot
be held responsible for any damage or losses caused by
compatibility issues.
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].
Multilingual versions of this manual are available on our web-
site: www.noctua.at/manuals
Required mounting parts:
2x NM-IMB3 mounting bars
4x NM-ITS1 thumb screws
4x NM-IBT2 bolts
Caution: Make sure that the curved sides of the mounting bars
are pointing outwards.
Fix the mounting bars using the 4 thumb screws.
Caution: Gently tighten the screws until they stop, but don’t use
excessive force (max. torque 0.6 Nm).
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.
Applying the thermal paste
Caution: Applying too much thermal paste will lower heat
conductivity and cooling performance!
2
NOCTUA NH-U12S chromax.black
INSTALLATION MANUAL
LGA20xx
Scan this code to display
multilingual manuals on
your phone.
Caution: Please first take off the fans as well as the protection
cover at the bottom side of the heatsink.
Fastening the heatsink to the CPU
3
Then put the heatsink onto the CPU and screw it to the screw
threads of the mounting bars. Perform 2-3 turns on each
screw, then repeat until both are fully tightened
