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Upgrading Your System 4-23
Replacing the Real-time Clock Battery
You may need to replace the real-time clock (RTC) battery because of its
battery life span. The battery powers the clock in the absence of power. When
the battery starts to weaken, it loses voltage, and the system settings stored in
CMOS RAM (for example, the date and time) may be wrong.
The battery (Vendor Part No. CR2450) is available through many vendors. It is
located on your system board (see Figure 4-14). Notice the plus (+) sign on the
battery. The sign assists in correctly positioning the battery on the system board.
Contact your sales representative or dealer for a list of approved devices.
Figure 4-14. Location of the Real-Time Clock Battery
!
CAUTION
Danger of explosion if the battery is incorrectly replaced.
Replace only with same or equivalent type recommended by
manufacturer. Dispose of lithium batteries as required by
local ordinance or as normal waste if no local ordinance
exists. Do not expose the component to excessive heat or
fire. Keep all batteries away from children.
Содержание EXPRESS5800/120Md Series
Страница 1: ... U s e r s G u i d e EXPRESS5800 120Md ...
Страница 2: ...NEC ...
Страница 3: ... U s e r s G u i d e EXPRESS5800 120Md ...
Страница 58: ...2 16 Setting Up the System Figure 2 10 Connecting the AC Power Cord to the Server ...
Страница 64: ...2 22 Setting Up the System ...
Страница 92: ...3 28 Configuring Your System ...
Страница 165: ...A Technical Specifications Server Unit ...
Страница 168: ...A 4 Technical Specifications ...
Страница 174: ...B 6 Interrupt Request PCI IRQ Device I O Port Address Assignments ...
Страница 185: ...D ROMPilot BIOS Error Codes ROMPilot BIOS Error Codes ...
Страница 188: ...D 4 ROMPilot BIOS Error Codes ...
Страница 198: ...10 Glossary ...
Страница 204: ...Index 4 ...
Страница 205: ...xx ...
Страница 206: ... 456 01557 N00 ...