Removing And Replacing The Real-Time Clock Battery; Preliminary Requirements; Removal; Replacement - HP Model 745 - VME Workstation Handbook

Removing and Replacing the Real-Time Clock Battery

This section provides step-by-step instructions for removing and replacing the real-time
clock (RTC) in your Model 744.

Preliminary Requirements

WARNING:

Removal

Perform the following steps before removing the RTC battery from your Model 744:
1 Remove the 744 from the chassis.
2 Remove any accessory cards installed at the board computer's left position which cover
the battery.

Replacement

Follow these steps to replace the RTC battery:
1 Locate the battery behind the left RAM connector. It is held in place by a spring arm
marked with a "+".
2 Raise the spring arm holding the battery in place and remove the battery.
3 Install the new battery with its "+" side up.
Field Replaceable Units
Removing and Replacing the Real-Time Clock Bat-
tery
Lithium batteries may explode if mistreated. Replace
battery with only HP Part No. 1420-0541! Use of any
other battery may cause fire or explosion. Use the
following guidelines when handling old batteries:
Do not put lithium batteries in fires.
Do not try to recharge lithium batteries.
Do not disassemble lithium batteries.
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