User’s Manual 9-19
Troubleshooting
Sound system
Refer also to documentation for your audio devices.
Monitor
Refer also to Chapter 8, Optional Devices, and to your monitor’s
documentation.
The computer will not
start and the following
sequence of beeps
sounds:Long, short,
no sound, long, short,
short, ...
Unsupported memory modules (with SPD) are
installed in both Slot A and B.
The computer will not
start and no beeps are
heard.
One or more unsupported memory modules
(without SPD) are installed in the slots.
The computer starts
but does not detect
memory.
Supported memory is installed in one of the
slots but unsupported memory (without SPD) in
the other slot. Note that the unsupported
memory does not have an adverse effect on the
computer.
Problem Procedure
No sound is heard
Adjust the volume control dial.
Check the software volume settings.
Make sure the headphone connection is secure.
If problems persist, contact your dealer.
Problem Procedure
Monitor does not turn
on
Make sure that the external monitor’s power
switch is on. Confirm that the external monitor’s
power cable is plugged into a working power
outlet.
No display Try adjusting the contrast and brightness controls
on the external monitor.
Press hot keys Fn + F5 to change the display
priority and make sure it is not set for the internal
display.
Display error occurs Check that the cable connecting the external
monitor to the computer is attached firmly.
If problems persist, contact your dealer.
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