Installing the battery
To install the battery:
1.
Confirm the polarity (positive or negative) of the battery to position it correctly in the battery
holder.
2.
Angle the battery and place the battery edge under the plastic housing tab and press gently until it
snaps into place.
CPU heatsink
This section describes how to remove and install a CPU heatsink.
Removing the CPU heatsink
To remove a heatsink:
1.
Prepare the computer for servicing by following the
Predisassembly procedures on page 69
.
CAUTION:
Failure to follow the predisassembly procedures can result in equipment damage or
data loss.
2.
Remove the access panel (see
Removing the access panel on page 72
).
3.
Remove the airflow guide.
4.
Slowly and evenly loosen one pair of diagonally opposite screws (1) from the CPU until the screw
shanks disengage from the system board, and then loosen the remaining pair (2) as shown below.
CAUTION:
Do
not
fully loosen one screw, and then move on to the next. Instead, loosen all
screws a little at a time, ensuring that the CPU remains level.
Figure 5-79
Loosening heatsink screws in sequence
132
Chapter 5 Replacing components
ENWW