Fans - Dell POWEREDGE 1900 Hardware Owner's Manual

3 Connect the power cables to the following components where applicable (see Figure 6-2 for connector
locations):
• PWR1 connector on the system board
• PWR2 connector on the system board
• PWR CTRL connector on the system board
• Hard drives
• Diskette drive
• Optical drive
• Tape backup unit
• Cable retention clips on the chassis (see Figure 3-4)
4 Replace the center fan bracket. See "Replacing the Center Fan Bracket" on page 79.
5 Replace the expansion-bay and processor fans (FAN1, FAN2, and FAN3). See "Removing and Installing
a Fan" on page 53.
6 Close the system. See "Closing the System" on page 48.
7 Connect the power cable to the power supply and the power outlet.

Fans

The system contains six hot-plug cooling fans:
• One expansion-bay cooling fan (FAN1)
• Two processor cooling fans, one for each processor (FAN2 and FAN3)
• Three memory module cooling fans:
– One fan on top of the memory cooling shroud (FAN4)
– Two fans at the rear of the system (FAN5 and FAN6)
NOTICE:
In the event of a problem with a particular fan, the fan's number is referenced by the systems
management software, allowing you to easily identify and replace the proper fan.
52
Installing System Components