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Battery; Power Connections To Drives - HP Xw8400 - Workstation - 4 GB RAM User Manual

Hp xw8400 service and technical reference guide.
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Battery

CAUTION
all CMOS 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.
1.
Disconnect power from the system (
access panel
facing up.
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 4-26
To install the battery slide the battery back in until it snaps back into place.

Power connections to drives

For help in identifying power cables, refer to the following figure and table. Route or tie cables so that
they cannot interfere with the CPU heatsink fans.
CAUTION
graphics card and which power cable connects to the system board. These two cables look very
similar. The PCI Express power cable has a black connector, and the power cable has a 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 may be damaged and your warranty voided.
To see a picture of the PCI Express cable and where it must be connected, see the
Express installation on page
78
Chapter 4 Removal and replacement procedures
Before removing the battery, be sure your CMOS settings are backed up because
(Access panel on page
Removing the battery
Be sure you can differentiate which power cable connects to the PCI Express x16
75.
Pre-disassembly procedures on page
60). Place the workstation on its side with the system board
55), and remove the
PCI or PCI
ENWW

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