Noctua DX Series Installation Manual

Dear customer,
Thank you very much for choosing the Noctua NH-D9 DX-4189 4U.
Our DX line of coolers has become a default choice in high
performance quiet cooling solutions for Intel Xeon processors,
and I'm confident that you will be able to sense some of the
research, attention and care we've put into making this product.
Enjoy your NH-D9 DX-4189 4U!
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
centre on our website (ncc.noctua.at) 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, other PCIe cards, motherboard heatsinks or any other
components. 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 support@noctua.at.
Required mounting parts:
1x NM-XRF6
plastic CPU carrier frame for
LGA4189-4 (P4)
2x NM-XFB8
brackets
NOCTUA NH-D9 DX-4189 4U
INSTALLATION MANUAL
1 Installing the brackets
Take the fans off the cooler. Install the NM-XFB8 brackets to the
heatsink using the NM-SCC2 short screws.
Caution: Gently tighten the screws until they stop, but do not use
excessive force (max. torque 0.6 Nm).
4x NM-SSC2
short screws
2 Assembly of carrier frame, CPU and heatsink &
installation to the socket
Caution: The supplied plastic CPU carrier frame is for LGA4189-4
(P4) only. LGA4189-5 (P5) systems use the same mounting
mechanism system but require a different CPU carrier frame.
Please contact us at support@noctua.at if you would like to use
the cooler on a LGA4189-5 (P5) type system.
Please follow the official Intel installation manual for how to
attach the CPU carrier frame to the heatsink, insert the CPU to the
carrier frame and install the CPU/heatsink assembly to the socket:
www.intel.com/processorinstall
Note that while the Intel illustrations show a 2U heatsink, the
Noctua NM-XFB8 brackets use the same mounting parts, so the
procedure is identical for Noctua heatsinks.
When attaching the CPU carrier frame to the base of the heatsink,
turn the heatsink upside down so that the base is facing upwards.
Carefully put it down onto the tips of the heatpipes and secure
it with your hand so that it cannot tilt and that the fins cannot
get bent. Remove the plastic protection cover from the base of the
heatsink and be careful not to damage the layer of pre-applied
thermal compound.
Caution: If you are not using the heatsink for the first time and
it therefore doesn't have a fresh layer of pre-applied thermal
compound anymore, you need to apply a thin layer of thermal
compound to the CPU yourself before clipping it to the heatsink.
If there are residual traces of previous thermal paste or thermal
pads on your CPU or on the heatsink, please clean them off first.
3 Installing the fans
Reattach the fans to the heatsink using the supplied steel clips: