Lenovo ThinkSystem NE1072T, Installation Manual

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© Copyright Lenovo 2019 Chapter 4: Removing and Replacing Components
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Removing and Replacing a Fan Module
The rear panel of the NE1072T has five bays for hot-swap fan modules. Five active
fan modules are required for redundancy.
With active fan modules in all fan bays, if one fan fails, the switch sends an error
message and continue operation. You can then replace the failed fan without
powering off the switch or disrupting switch functions. If a second fan fails, the
switch sends another error message, write a log message to flash memory, and shut
down to prevent overheating.
Note: Read the “Fan Modules” on page 28 section before attempting to remove or
replace a fan module.
Removing the Fan Module
CAUTION:
Be sure to finish the replacement procedure promptly. The switch could overheat
if left without cooling for an extended period.
To remove a hot-swap fan module, complete the following steps:
1. Loosen the retainer screw.
2. Grasp the extractor handle and gently pull the fan module from the slot.
Attention: If the inlet air temperature is above 35°C (95°F) while the switch is in
operation, replace the fan module within five minutes to avoid overheating the
switch.
To return the component to customer service for replacement, see Appendix A,
“Getting Help and Technical Assistance“ to help you gather all the required
information that is necessary to return a component. After you remove the
component, securely pack the component for shipping.
Retainer Screw