Removing and Replacing Fan Assemblies
There are two fan assemblies containing two individual fans. One assembly is located near the SCSI backplane board. The other fan assembly is attached to the back-
panel.

Removing the Front Fan Assembly

1. Open the front bezel (see "Removing the Front Bezel" in "Troubleshooting Your System").
2. Remove the system cover.
3. Release the fan assembly by pressing the release lever (see Figure6-2).
Figure 6-2. Removing the Front Fan Assembly
4. Swing the fan assembly up and out of the way.
5. Disconnect the fan assembly power cable from the front fan connector on the SCSI backplane board (see FigureA-3).

Replacing the Front Fan Assembly

1. Connect the fan assembly power cable to the front fan connector on the SCSI backplane board (see FigureA-3).
DIMM_x
Memory module sockets (A–F)
DIMM_RAID
Memory module socket for integrated RAID controller
ENET
Ethernet connector
REAR FAN
Power for the rear fan assembly
FLOPPY/IDE
Power and data to the diskette/CD ROM interposer board from the system board
INTR
Intrusion-alarm switch connectors
KYBD
Keyboard connector
MOUSE
Mouse connector
FRONT PANEL
System control panel connector
PARALLEL
Parallel port connector; sometimes referred to as LPT1
POWERn
Power connector
PROCESSOR_n
Microprocessor sockets
PROCESSOR_n VRM
Voltage regulator module connector
RAID_KEY
Socket for integrated RAID controller hardware key
SLOT_n
Expansion card connectors (SLOT_1—SLOT_7)
SCSIA, SCSIB
Ultra160/m SCSI host adapter connectors
USBn
USB connector
VGA
Video connector
NOTE: Forthefullnameofanabbreviationoracronymusedinthistable,see"AbbreviationsandAcronyms."