44 IBM Desktop System HMM
Real-Time Clock
Real-time clock is
inaccurate.
1. Ensure that the
information in the Date
and Time of
Configuration/Setup
Utility is set correctly.
2. Load default settings.
3. CMOS battery.
4. System board
Audio
Audio software program
invokes but no sound
comes from speakers.
1. Speaker power/
connection/cable.
Modem
Data/fax modem software
program invokes but cannot
receive/send data/fax
1. See “Factory-Installed
Modem Card” on page
52.
Fax modem software
program invokes but has no
sound output. (Data files are
received normally; voice
from modem cannot be
produced, but system sound
feature works normally.)
1. Ensure that the modem
voice-in cable from
modem adapter card to
system board CN21 is
connected properly.
See “System Board
Jumpers and
Connectors” on page
113.
2. “Factory-Installed
Modem Card” on page
52.
Error Symptoms Action/FRU
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