NEC ES1400, User Manual, Page: 72 / 188

4-6 Upgrading Your System
Modifying the System Board
The following sections provide procedures for upgrading and
configuring the system board in your system. Topics covered include:
!
Replacing the real-time clock battery
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Replacing the Pentium II processor
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Installing or removing DIMMs.
!
CAUTION
Electrostatic discharge (ESD) can damage add-in boards and
other components; place them on an antistatic surface.
Modify the system board only at an ESD workstation.
Otherwise, wear an antistatic wrist strap attached to chassis
ground.
Replacing the Real-time Clock Battery
You may need to replace the real-time clock battery because of its life
span. The battery (Vendor Part #CR2032) is a commodity part available
through many vendors. Notice the plus (+) sign on the battery. This sign
will assist you in correctly positioning the battery on the system board.
!
CAUTION
Danger of explosion if 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
!
CAUTION
Observe static precautions. Use an antistatic wrist strap.