Installation guide

3-45
Installing Options
Installing the Redundant Power and Cooling Option
The redundant power and cooling option consists of two fans and an extra power supply in
addition to the base fans and power supplies that are already installed in your system.
Installing a Fan
Use the following procedure to install redundant fans in your system:
1. If you have not already done so, shut down the system as described in ”Stopping the
System Unit” on page 3-2.
2. If you have not already done so, unplug the system unit power cable from the electrical
outlet.
Note: Unplugging the system unit power cable from the electrical out is necessary in order
for the system to recognize the new cooling configuration.
3. If you have not already done so, remove the front, rear, and right side covers as
described in ”Removing the Covers” on page 3-4.
4. Locate the next available fan position.
5. Pull the locking knob on the fan bay blank cover and remove it by pulling it straight out
from the system unit.
6. Store the blank cover in a safe place.
2
4
2 Fan bay blank cover 2
4 Fan bay blank cover 4
7. Install the new fan by pulling the locking knob out and then inserting the tabs on the left
side of the fan into the frame opening.
8. Install the other fan by repeating steps 4 through 8.
9. Swing the right side of the fan inward until the locking knob contacts the frame.
10.Push the locking knob until you feel it lock into position.
11.If you have other options to install, refer to ”Option List” on page 3-3.
12.If you do not have other options to install, replace the system unit covers as described in
”Replacing Covers” on page 3-48.