Troubleshooting Guide

Troubleshooting Guide www.hp.com 2–7
Troubleshooting Without Diagnostics
Cannot remove
computer cover or
access panel.
Smart Cover Lock,
featured on some
computers, is locked.
Unlock the Smart Cover Lock using
Computer Setup.
The Smart Cover FailSafe Key, a
device for manually disabling the
Smart Cover Lock, is available from
HP. You will need the FailSafe Key in
case of forgotten password, power
loss, or computer malfunction. Order
PN 166527-001 for the wrench-style
key or PN 166527-002 for the
screwdriver bit key.
Poor performance is
experienced.
Processor is hot. 1. Make sure the airflow to the
computer is not blocked.
2. Make sure the fans are connected
and working properly (some fans
only operate when needed).
3. Make sure the processor heatsink
is installed properly.
Hard drive is full. Transfer data from the hard drive to
create more space on the hard drive.
Low on memory. Add more memory.
Hard drive fragmented. Defragment hard drive.
Program previously
accessed did not release
reserved memory back to
the system.
Restart the computer.
Virus resident on the hard
drive.
Run virus protection program.
Too many applications
running.
1. Close unnecessary applications
to free up memory.
2. Add more memory.
Cause unknown. Restart the computer.
Solving General Problems (Continued)
Problem Cause Solution