Battery; Power Connections To Drives - HP Xw6400 - Workstation - 4 GB RAM Reference Manual

Battery

The battery that comes with the workstation provides power to the real-time clock and has a minimum
lifetime of about three years.
WARNING!
battery is handled improperly. Do not disassemble, crush, puncture, short external contacts, dispose in
water or fire, or expose it to temperatures higher than 140°F (60°C).
CAUTION:
settings are lost when the battery is removed. To back up the CMOS settings, use Computer Setup and
run the Save to Diskette option from the File menu.
NOTE: Batteries, battery packs, and accumulators should not be disposed of together with general
household waste.
1. Disconnect power from the system
access panel
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
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:
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
This workstation contains a lithium battery. There is a risk of fire and chemical burn if the
Before removing the battery, be sure your CMOS settings are backed up as all CMOS
(Side access panel on page
Removing the battery
Be sure you can differentiate which power cable connects to the PCI Express x16 graphics
(Predisassembly procedures on page
63).
Removal and replacement of components
57) and remove the side
83