Upgrade Procedure
Step 2: Shut
Down System
Turn off the system unit by pressing 0 on the On/Off switch on
the front of the system unit.
Caution: After you turn off the system, wait 15 seconds before
unplugging the power cord.
Step 3:
Disconnect
Cables
Disconnect all cables from the rear of the system unit.
Disconnect the power cord from the wall outlet and then from
the system unit.
Step 4:
Remove
System Cover
Release the latches on the right side. Then pull the cover up and
away. You need to pull forcefully to release the retention devices.
MLO-010581
Latches
Retention
Devices
Upgrading a VAXstation 4000 Model 90/90A
2–3
