Replacing The Real-Time Clock Battery - NEC Express5800 series User Manual

6. Install the memory board following procedures previously described in this
chapter.
7. Install the system board access cover and rear access cover following
procedures previously described in this chapter.
8. Plug in the AC power cords and power on the system.
9. Run the BIOS Setup and select Memory Reconfiguration on the Advanced
Menu to verify that the status of the added memory shows Normal.
10. Select Yes for Reset Configuration Data in the Advanced Menu. Selecting
Yes updates the hardware configuration information.

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. CR2032) is available through many vendors. It is
located on your system board (see Figure 4-17). Notice the plus (+) sign on the
battery. The sign assists in correctly positioning the battery on the system board.
A
Figure 4-17. Location of the Real-Time Clock Battery
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.
B
C
! CAUTION
Upgrading Your System 4-23