Installing The System Board; Battery; Removing The Battery - HP Z800 Workstation Maintenance And Service Manual

Installing the system board

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board in the chassis.
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Battery

This section describes how to remove and install the 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 60°C (140°F).
CAUTION:
battery is removed. To back up the CMOS settings, select the Save to Diskette option in the Computer
Setup (F10) Utility.
NOTE:

Removing the battery

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For convenience, you may install the CPUs and the CPU heatsinks before installing the system
Ensure that all cables are clear of the bottom of the chassis (see
on page 179).
Tilt the system board and lower it into the chassis, ensuring that all standoffs engage the chassis
keyholes.
Ensure that the system board connectors engage correctly with the rear I/O panel.
Push back on the board while maintaining downward pressure on the board so all standoffs remain
engaged.
CAUTION: Do not pinch any power or data cables.
Lift the system board corners to make sure the board is engaged properly.
Reinstall all removed components (in the reverse order of the section above) and reconnect any
cables that have been disconnected.
To identify power cables, see
See the removing and installing sections of this chapter for details on reinstalling component
cables.
This workstation includes a lithium battery. There is a risk of fire and chemical burn if the
Before removing the battery, back up the CMOS settings in case they are lost when the
Do not dispose of batteries, battery packs, and accumulators with general household waste.
Disconnect power from the workstation (see
Remove the side access panel (see
Remove the expansion card support (see
On the system board, press the release tab of the battery holder. (See
on page 73 or the Side access panel service label to locate the battery.)
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Power connections on page
Predisassembly procedures on page
Removing the side access panel on page
Removing the expansion card support on page
Removing and installing components 181
Removing the system board
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Component locations
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