Symptom / Error FRU / Action in Sequence
No beep during POST but
system runs correctly.
1. Turn the volume up
and check the
speaker.
2. Speaker
3. DC/DC card
Audio-Related Symptoms
Symptom / Error FRU / Action in Sequence
In OS/2, DOS, or Windows
multimedia programs, no
sound comes from the
computer. (Only system
beeps are heard at
power-on.)
Check that the device
driver is installed
correctly.
CD-ROM-Related Symptoms
Symptom / Error FRU / Action in Sequence
You hear a noise from the
CD-ROM drive when the
CD-ROM is spinning.
1. CD-ROM drive
2. System board
The CD-ROM tray does not
open even if you press the
CD-ROM eject button.
Insert a pin into the
CD-ROM emergency eject
hole and eject the
CD-ROM tray.
The compact disc cannot be
read.
Make sure that:
 The compact disc is
not dirty. If it is, clean
it with a CD-ROM
cleaner kit.
 The compact disc is
not defective. If it is,
try another compact
disc.
 The compact disc is
placed in the tray with
the label side up.
 The compact disc
format conforms with
one of the following:
– Music CD
– CD-ROM or
CD-ROM XA
– Multisession
photo CD
– Video CD and
CD-i movie
(Windows 95
does not support
CD-i movies)
1. CD-ROM drive
2. System board
552 IBM Mobile Systems HMM
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