Kontron NSN2U IP Network Server - Manual (Page 25)

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Removing the Processor Air Duct
The processor air duct is black plastic with rubber grommets that reduce vibration. It
must be removed to access the processors and the memory DIMMs. The air duct is
required to ensure proper air flow within the chassis, so be sure that it is in place
again before re-installing the back cover.
To remove the processor air duct:
1. Power down the server and remove all peripheral devices and the power cord(s)
2. Remove the back chassis cover. For instructions, see “Removing the Chassis Covers”.
3. Remove the riser card assembly. For instructions, see “Removing the Riser Card
Assembly”.
4. Slide the air duct back to free it from the fan bracket and towards the center of
the chassis to free it from the edge.
5. Lift the air duct straight up to remove it.
Re-Installing the Processor Air Duct
The air duct is required to ensure proper air flow within the chassis, so be sure that
it is in place again before re-installing the back cover.
1. Place the processor air duct over the processor sockets and DIMMs, being careful not
to pinch any cables beneath the edges of the air duct.
2. Slide the air duct flush with the chassis wall and the fan bracket.
3. Re-install the riser card assembly. For instructions, see “Re-Installing the Riser
Card Assembly”.
4. Replace the chassis back cover. For instructions, see “Re-Installing the Back
Cover”.