Figure 100. Remove fan module
4. Repeat steps “2” on page 95 and “3” on page 95 for each additional fan module you need to remove.
Replace a fan module
replacing a fan module: 2077-92F ” on page 75.
Removing a fan interface board: 2077-92F
You can remove a fan interface board (FIB) from a 2077-92F expansion enclosure.
Before you begin
This task assumes that the following conditions were met:
• All power cables were removed from the enclosure, as described in “Powering off the expansion
enclosure: 2077-92F ” on page 111.
• The top cover, fan modules, and the other heavy FRUs (drives, secondary expander modules) were
removed before the enclosure was removed from the rack.
• The expansion enclosure was removed from the rack, as described in “Removing an expansion
enclosure from a rack: 2077-92F ” on page 79.
Ensure that you use a lift to support the weight of the enclosure.
About this task
The 2077-92F expansion enclosure contains two fan interface boards (FIBs). The FIBs act as the
interface between the fans and the system drive board. FIB 1 connects fan modules 1 and 2 to the drive
board; FIB 2 connects fan modules 3 and 4. If both fan modules controlled by a FIB fail, it is possible that
the FIB needs to be replaced.
Important: Because this task is disruptive to the storage system, always attempt fan replacement first.
See “Removing a fan module: 2077-92F ” on page 94 and “Installing or replacing a fan module:
2077-92F ” on page 75 for information about the removal and replacement procedures. Ensure that both
fans are installed correctly. Perform the following procedure only if the amber fault LED on each fan
remains lit (
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