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Chapter 3: Maintenance and Component Installation
Air Shrouds
Air shrouds concentrate airflow to maximize fan efficiency. The 120H-TNR includes one air
shroud for each CPU.
Air Shroud for Memory (CPU1/2)
Two air shrouds cool the DIMM slots controlled by CPUs 1 and 2 (see figure below).
1. Remove the system from the rack and remove the cover as described previously.
2. Place each air shroud over sixteen DIMM slots at a time for both CPU1 and CPU2-
controlled DIMM slots, as illustrated below.
3. Close the cover and push the system back into the rack.
Figure 3-8. Installing Air Shrouds for CPU1/2 DIMMs
