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Manual Noctua NH-U12DX i4 CPU Cooler

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Manual

First choose the appropriate set of Narrow-ILM mounting brackets

according to the desired orientation of the cooler:

NM-XF4 NM-XFB5

Noctua NH-U12DX i4 |

Installation Manual

After you’ve fixed the springs and screws to the appropriate Narrow-

ILM fastening brackets, please screw the brackets to the heatsink:

Unscrew the preinstalled LGA2011 Square-ILM mounting brackets

(NM-XFB3) and take them off the heatsink.

Then proceed with the steps described in section LGA2011

Square-ILM.

NM-XFB4

NM-XFB5

Then remove the plastic lock-rings, springs and screws from the

Square-ILM mounting brackets and put them into the Narrow-ILM

mounting brackets.

NM-XFB3

NM-XFB4/NM-XFB5

LGA1356/1366 uses a different thread than the pre-installed

screws for LGA2011 (NM-XBT1), so please change the screws as

described below.

Remove the plastic lock-rings, springs and screws (NM-XBT1)

from the mounting brackets.

Required mounting parts:

LGA1356/1366

NM-XBT2 Screws (black)

NM-XBT1 (silver)

After you’ve fixed the springs and screws to the mounting brack-

ets, please proceed with the steps described in section LGA2011

Square-ILM.

Then use the springs and the lock-rings to fix the black

LGA1356/1366 screws (NM-XBT2) to the mounting brackets.

NM-XBT2 (black)

Required mounting parts:

NM-XFB4 Standard Mounting Bar

LGA2011 Narrow-ILM

NM-XFB5 90° Mounting Bar

The LGA2011 Narrow-ILM uses a different hole spacing than

Square-ILM, so please replace the pre-installed Square-ILM

mounting brackets (NM-XFB3) with Narrow-ILM brackets

(NM-XFB4 or NM-XFB5) as described below.

This manual will guide you through the installation process step

by step using the NM-XFB5 bracket as an example. Please note

that the installation procedure is identical for NM-XFB5 and

NM-XFB4.

Airflow

front fan (standard spacers)

rear fan (thick spacers)

Clip position for thick spacers:

Clip position for standard spacers:

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