System Board And Components; Replacing The Cmos Battery - Fujitsu PRIMERGY CX272 S1 Upgrade And Maintenance Manual

9

System board and components

This chapter provides information on how to replace the system board module
and system board components as its CMOS battery and the USB Flash Module
(UFM).
Safety instructions
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
9.1

Replacing the CMOS battery

Upgrade and Repair Unit
(URU)
Tools: tool-less, recommended: tooth pick
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.
CX272 S1
29.
Upgrade and Maintenance Manual
"Important
Hardware: 5 minutes
183