Compaq Evo D300 Troubleshooting Manual page 19

Solving General Problems (Continued)
Problem
Computer appears to
pause periodically.
Cannot remove
computer cover or
access panel.
Poor performance is
experienced.
Cursor will not move
using the arrow keys
on the keypad.
Troubleshooting Guide
Cause
Network driver is loaded
and no network
connection is
established.
Smart Cover Lock,
featured on some
computers, is locked.
Processor is hot.
The Num Lock key
may be on.
Troubleshooting Without Diagnostics
Solution
Establish a network connection, or
use Computer Setup or Microsoft
Windows Device Manager to disable
the network controller.
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
Compaq. You will need the FailSafe
Key in case of forgotten password,
power loss, or computer malfunction.
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.
Press the Num Lock key. The
Num Lock light should not be on if
you want to use the arrow keys.
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