Compaq Evo W8000 Hardware Reference Manual page 74

Compaq Evo Workstation W8000 Hardware Reference Guide
4. Slide the replacement battery into position, positive side up. The
battery holder automatically secures the battery in the proper
position.
5. Replace any expansion boards you removed.
6. Replace the computer cover or access panel.
7. Plug in and turn on the computer.
8. Reset the date and time, your passwords, and any special system
setups, using Compaq Computer Setup. Refer to the Computer
Setup Guide on the Reference Library CD for additional
information.
Battery Replacement
C-3