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Installing System Components 59
Installing an Expansion-Card Riser
CAUTION: Only trained service technicians are authorized to remove the system cover and access any of the
components inside the system. See your Product Information Guide for complete information about safety
precautions, working inside the computer, and protecting against electrostatic discharge.
1
Align the riser board with the two alignment pins on the system board, then lower the board onto the
pins. See Figure 3-13.
2
Press down on the riser board until the edge connector on the board is fully seated in the riser board
connector on the system board.
3
If applicable, install the expansion card in the expansion-card slot.
4
Close the system. See "Opening and Closing the System" on page 38.
5
Reconnect your system and peripherals to their electrical outlets, and turn on the system.
System Battery
The system battery is a 3.0-volt (V), coin-cell battery.
Replacing the System Battery
CAUTION: Only trained service technicians are authorized to remove the system cover and access any of the
components inside the system. See your Product Information Guide for complete information about safety
precautions, working inside the computer, and protecting against electrostatic discharge.
CAUTION: There is a danger of a new battery exploding if it is incorrectly installed. Replace the battery only
with the same or equivalent type recommended by the manufacturer. Discard used batteries according to the
manufacturer's instructions. See your System Information Guide for additional information.
1
Turn off the system, including any attached peripherals, and disconnect the system from the electrical
outlet.
2
Open the system. See "Opening and Closing the System" on page 38.
3
To improve access to the battery, disconnect the power cable from the POWER1 connector on the
system board. See Figure 3-6.
4
Locate the battery socket. See Figure 6-2.
NOTICE: If you pry the battery out of its socket with a blunt object, be careful not to touch the system board with
the object. Ensure that the object is inserted between the battery and the socket before you attempt to pry out the
battery. Otherwise, you may damage the system board by prying off the socket or by breaking circuit traces on the
system board.
NOTICE: To avoid damage to the battery connector, you must firmly support the connector while installing or
removing a battery.