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System Cooling
Six hot-swap, heavy-duty rear mounted fans provide cooling. They can be replaced without
powering down the system.
Fan speed is controlled by a system temperature setting in IPMI. If a fan fails, the remaining
fans will ramp up to full speed. Replace any failed fan at your earliest convenience with the
same type and model. The system can continue to run with a failed fan and all six fans will
operate as long as one node is powered on.
Replacing a System Fan
1. While the power is running, examine the fans to determine which fan has failed.
2. On the failed fan, simultaneously squeeze the fan's side release tabs inward.
Release tabs
3. Pull the fan out of the motherboard sled using the tabs.
Caution: Fans will continue to rotate for a brief time after removing them from the chassis.
To avoid injury, keep fingers clear of the rotating fan blades.
Chapter 3: Maintenance and Component Installation
Figure 3-16. Fan Release Tabs
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