System Board And Components; Replacing The Cmos Battery - Fujitsu PRIMERGY RX300 S7 Upgrade And Maintenance Manual

14

System board and components

Safety notes
V
CAUTION!
Devices and components inside the server remain hot after
●
shutdown. After shutting down the server, wait for hot components to
cool down before installing or removing internal options.
Circuit boards and soldered parts of internal options are exposed and
●
can be damaged by static electricity. Always discharge static build-up
(e.g. by touching a grounded object) before handling electrostatic-
sensitive devices (ESDs).
Do not touch the circuitry on boards or soldered parts. Hold circuit
●
boards by their metallic areas or edges.
For further information, please refer to chapter
●
information" on page
14.1

Replacing the CMOS battery

Upgrade and Repair Units (URU)
Average task duration: 5 minutes
CMOS memory (volatile BIOS memory) and the real-time clock are powered by
a lithium coin cell (CMOS battery). This cell lasts up to ten years, depending on
ambient temperature and use.
If the CMOS battery is depleted or falls below minimum voltage levels, it need
to be replaced immediately.
Safety notes
V
CAUTION!
The CMOS battery must be replaced with an identical battery or with
●
a battery type recommended by the manufacturer.
Keep lithium batteries away from children.
●
RX300 S7
43.
Upgrade and Maintenance Manual
"Important
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