Compaq dc7700 - Convertible Minitower PC Service & Reference Manual page 221

Solving Minor Problems (Continued)
Problem
Cannot remove
computer cover or
access panel.
Poor performance is
experienced.
Service Reference Guide, dc7700
Cause
Smart Cover Lock,
featured on some
computers, is locked.
Processor is hot.
Hard drive is full.
Low on memory.
Hard drive fragmented.
Program previously
accessed did not release
reserved memory back to
the system
Virus resident of the hard
drive.
Too many applications
running.
Some software
applications, especially
games, are stressful on the
graphics subsystem.
Cause unknown.
433612-001
Troubleshooting Without Diagnostics
Possible Solution
1. Unlock the Smart Cover Lock
using Computer Setup.
2. Use the Smart Cover FailSafe Key
in case of forgotten password,
power loss, or computer
malfunction.
1. Ensure airflow to the computer is
not blocked. Leave a 10.2-cm
(4-inch) clearance on all vented
sides of the computer and above
the monitor to permit the required
airflow.
2. Ensure the fans are connected
and working properly (some fans
only operate when needed).
3. Ensure the processor heatsink is
installed properly.
Transfer data from the hard drive to
create more space on the hard drive.
Add more memory.
Defragment hard drive.
Restart the computer.
Run virus protection program.
1. Close unnecessary applications.
2. Add more memory.
1. Lower the display resolution for
the current application or consult
the documentation that came with
the application for suggestions on
how to improve performance by
adjusting parameters in the
application.
2. Add more memory.
3. Upgrade the graphics solution.
Restart the computer.
D–3