dc7600 Series Personal Computer Service Reference Guide (2nd Edition)
D–10 390742-002 Service Reference Guide, dc7600
Troubleshooting Without Diagnostics
Solving MultiBay Problems
Solving Display Problems
Solving MultiBay Problems
Problem Cause Solution
Drive not found. You attempted to hot
plug a removable
hard drive that has
DriveLock security
enabled. (This feature
supported on some
models.)
Shut down Windows and turn off
the computer. Insert the drive into
the MultiBay, if it is not already
inserted. Turn on the computer.
MultiBay is hidden in
Computer Setup.
Enter Computer Setup and set
MultiBay to Device Available in
Security > Device Security.
Solving Display Problems
Problem Cause Solution
Blank screen (no video). Monitor is not turned
on.
Turn on the monitor and check that
the monitor light is on.
The cable connections
are not correct.
Check the cable connections from
the monitor to the computer and to
the electrical outlet.
Bad monitor. Try a different monitor.
Screen blanking utility
installed or energy
saver features enabled.
Press any key or click the mouse
button and, if set, type your
password.
System ROM is
corrupted; system is
running in Boot Block
Emergency Recovery
Mode (indicated by
eight red blinks from the
power LED and eight
simultaneous beeps).
1. Reflash the system ROM with the
latest BIOS image.
2. Replace the system board.
Fixed-sync monitor will
not sync at the
resolution chosen.
Ensure that the monitor can accept
the same horizontal scan rate as the
resolution chosen.
Computer is in
standby mode.
Press the power button to resume
from standby mode.
Ä
CAUTION: When attempting to resume from standby mode, do not hold down the
power button for more than four seconds. Otherwise, the computer will shut down and
you will lose any unsaved data.