Product guide

QSSC-S4R Server System Product Guide Chapter 4: Serviceable Components
Version 1.0
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Removing and Installing System Fans
On the Enterprise system, eight cooling fans are located at the front of the chassis, seven for normal operation,
with an additional one for redundant operation in the event of fan failure. The top cover must be removed before
these fans can be serviced. You can replace a failed cooling fan assembly without turning off the power to the
server only if the remaining system fans are fully functional. Each fan assembly uses an amber LED to indicate a
failed fan condition. If the amber LED is on, the fan assembly needs to be replaced. The LED remains off during
normal operation.
Warning System fans cannot be hot swapped in the Value SKU where a four fan non-redundant fan system
is the default configuration. See “Removing System Fan Modules” on page 62 and “Installing the
System Fan Modules” on page 63 for details.
Caution
 System cooling is reduced during the fan replacement process. Do not leave a system fan
removed for longer than three minutes. Should the system be left open for extended periods
allow time for temperature recovery before reopening.
 Do not touch the fan blades while they are turning.
Removing the Hot-Swap Fan Modules
1. Remove the top cover. For instructions, see “Removing the Top Cover” on page 51.
2. Locate the fan assembly you are replacing. If a fan in the assembly has failed, the amber LED on the fan
model lights up.
Figure 48. Fan LED Location
3. Grasp the fan by the finger latches and squeeze together.
4. Lift the fan upward. See the following figure.