Upgrading Your System 4-31
Modifying the I/O Riser Board
The following subsection provides procedures for upgrading the I/O riser board.
"
Replacing the real-time clock battery.
Note:
Electrostatic discharge (ESD) can damage add-in
boards and other components; place them on an antistatic
surface. Wear an antistatic wrist strap attached to chassis
ground.
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 I/O riser board (see Figure 4-35). Notice the plus (+) sign on the
battery. The sign assists in correctly positioning the battery on the I/O riser
board. Contact your sales representative or dealer for a list of approved devices.
Figure 4-35. 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.
Summary of Contents for Express5800/180Ra-7
Page 1: ... U s e r s G u i d e EXPRESS5800 180Ra 7 ...
Page 2: ...xxx ...
Page 3: ... U s e r s G u i d e EXPRESS5800 180Ra 7 ...
Page 10: ...viii Contents ...
Page 94: ...3 28 Configuring Your System ...
Page 134: ...4 40 Upgrading Your System A B C Figure 4 43 Recabling the SCSI Interface Cable ...
Page 166: ...4 72 Upgrading Your System ...
Page 206: ...5 40 Problem Solving ...
Page 207: ...A Specifications Basic System Unit BSU Disk Expansion Unit DEU ...
Page 212: ...A 6 Specifications ...
Page 218: ...B 6 Interrupt Request PCI IRQ Device I O Port Address Assignments ...
Page 229: ...D ROMPilot BIOS Error Codes ROMPilot BIOS Error Codes ...
Page 232: ...D 4 ROMPilot BIOS Error Codes ...
Page 242: ...10 Glossary ...
Page 246: ...4 Equipment Log ...
Page 250: ...Index 4 ...
Page 251: ...xx ...
Page 252: ... 456 01516 000 ...