NOTE Batteries, battery packs, and accumulators should not be disposed of together with
general household waste.
1. Disconnect power from the system (Predisassembly procedures on page 57) and remove the side
access panel (
Side access panel on page 63).
2. On the system board, press on the release tab of the battery holder.
3. Rotate the battery enough to get beyond the latch and lift it straight up.
Figure 4-31 Removing the battery
To install the battery, confirm the polarity (pos-neg), position battery edge under plastic housing tabs,
and press down until the metal snaps engage.
Power connections to drives
For help in identifying power cables, refer to the following information. Route or tie cables so that there
is no possible way for them to interfere with the CPU heatsink fans.
CAUTION Be sure you can differentiate which power cable connects to the PCI Express x16
graphics card and which power cable connects to the system board. These two cables have
different pin counts and different colors. The PCI Express power cable has a 6-pin black
connector, and the system board power cable has an 8-pin white connector. When power is
present, you must never connect the PCI Express power cable to the system board. If you do
so, the system board might be damaged and your warranty voided.
ENWW Removal and replacement of components 83
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