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110 Chapter4
Field Replaceable Units
FRU Removal and Replacement
Removing the Fan from the Hard Disk Drive Area
This section provides the procedure for removing the cooling fan from the back of the hard
disk drive chassis. You will need to remove this fan when it needs replacement and when
you need to access or remove the:
• SCA disk interface board
• System board
• DIMM cards
Here are the steps necessary for removing the fan from the hard disk drive chassis.
1. Remove the system unit’s side panel. See the section “Opening the Left Side Panel of
the System Unit” in this chapter.
2. Lay the system unit on its right side (determined by facing the workstation front panel),
and prop up the power supply. See the section “Propping Up the Power Supply” in this
chapter.
3. Unplug the fan power cable from the system board. If you are removing the hard disk
drive fan to access the memory cards, you do not need to unplug the fan’s power cable.
4. Lift up on the handle of the fan bracket to remove the fan. See Figure 4-16. As you lift
up on the fan bracket, the top alignment tabs will be removed from their hard disk drive
alignment screws, and the bottom alignment tabs will be removed from their holes
allowing the fan to be removed. Once the hard disk drive fan is removed, place it on top
of the hard disk drive chassis.