314
Upgrade and Maintenance Manual
TX120
S3
System board and components
14.1 Replacing the CMOS battery
CMOS memory (volatile BIOS memory) and the real-time clock are powered by
a lithium coin cell (CMOS battery). This cell lasts two 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.
●
Do not throw batteries into the trash can. Lithium batteries must be
disposed of in accordance with local regulations concerning special
waste.
●
For further safety information, please refer to section "Environmental
protection" in the PRIMERGY TX120 S3 Server Operating Manual.
●
Ensure to insert the CMOS battery the with the positive pole
facing up!
14.1.1 Required tools
●
Preliminary and concluding steps:
– Phillips PH2 / (+) No. 2 screw driver
●
Replacing the battery: tool-less; recommended: tooth pick
Upgrade and Repair Units (URU)
Average task duration: 5 minutes
Содержание PRIMERGY TX120 S3
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Страница 26: ...26 Upgrade and Maintenance Manual TX120 S3 Introduction ...
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Страница 191: ...TX120 S3 Upgrade and Maintenance Manual 191 Expansion cards and backup units Figure 87 Installed BBU in BBU holder ...
Страница 244: ...244 Upgrade and Maintenance Manual TX120 S3 Main memory ...
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Страница 418: ...418 Upgrade and Maintenance Manual TX120 S3 Cables Figure 276 Installed BBU in BBU holder ...
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