Unlocking The Smart Cover Lock - Compaq Deskpro EN Series Maintenance & Service Manual

5.4.1

Unlocking the Smart Cover Lock

The Smart Cover Lock is a software-controllable cover lock. This lock prevents unauthorized
access to the internal components when the Smart Cover Lock and setup password are enabled.
1. If you enabled the Smart Cover Lock, use Computer Setup to unlock it. Proceed to Step 4.
2. If you enabled the Smart Cover Lock and cannot enter your password to disable the lock, you
will need a Smart Cover FailSafe Key (Compaq spare P/N 166527-001 or 166527-002) to open
the computer cover. You will also need the key in any of the following circumstances:
„
Power outage
„
Startup failure
„
PC component (e.g., processor or power supply) failure
„
Lost password
CAUTION: Turn off the computer before disconnecting any cables.
CAUTION: When the computer is plugged into an AC power source there is always voltage applied to
the system board. You must disconnect the power cord from the power source before opening the
computer to prevent system board or component damage.
CAUTION: The cooling fan is off only when the computer is turned off or the power cable has been
disconnected.
The cooling fan is always on in all other instances (when the computer is either "On," or in "Standby" or
"Suspend" mode).
You must disconnect the power cord from the power source before opening the computer to prevent
system board or component damage.
3. Using the Smart Cover FailSafe Key, remove the front tamper-proof screw 1 located on the
bottom right of the computer and loosen the rear screw 2 securing the Smart Cover Lock to the
chassis.
Removing the Smart Cover Lock Screws
5-10 Removal & Replacement Procedures