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7. Place the grille on the outside, align the mounting holes, and install the four screws. Do
not overtighten.
8. Secure the air duct support to the new fan using the screws you removed previously.
9. Connect the fan power cable to the power supply cable.
Lithium (CMOS/Clock) Battery
The battery is located near the bottom front of the system board. See the system board
diagram in Chapter 5, “System Board,” for details.
After you remove the battery, the system will lose its operating parameters stored in CMOS.
As a result, the system BIOS parameters are lost. Parameters include date, time, hardware
configuration, and other data.
After you install the new battery, you must reset the date and time and reconfigure the BIOS.
See the TDZ 2000 GL2/ExtremeZ GL2 System Setup for details on updating and configuring
the BIOS.
WARNING There is a danger of explosion if the battery is incorrectly replaced.
WARNING Replace the battery with the same or equivalent type only, as recommended by the
battery manufacturer. Dispose of used batteries according to the battery
manufacturer’s instructions.
To replace the battery:
1. Remove any expansion cards that restrict access to the battery. See the “Expansion
Cards” above for details.
2. Note the positive orientation of the battery. Carefully remove the discharged battery by
grasping it firmly and pulling it out of the socket.
3. Install the new battery in the same orientation as the old battery.
4. Dispose of the battery according to the manufacturer’s instructions.
5. Install the expansion cards that you removed.
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