data. These warning messages usually interrupt the procedure and require you to respond by typing a
y
(yes) or
n
(no).
Diagnostics Messages
When you run a test group or subtest in the
Dell Diagnostics
, an error message may result. These particular error messages are not covered in this
section. Record the message on a copy of your Diagnostics Checklist found in "
Getting Help
." Also see "
Getting Help
" for instructions on obtaining
technical assistance.
Diagnostic LEDs
The power indicator light-emitting diode (LED) and the hard-disk drive LED on the front of the computer emit diagnostic codes that can help you
troubleshoot a system problem. Table 3 lists the codes for the diagnostic LEDs, probable causes, and suggested corrective actions.
Table 3. Diagnostic LED Codes
Back to Contents Page
NOTE: Warning messages are generated by either your application programs or your operating system. See "
Software Checks
" and
the documentation that accompanied your operating system and application programs.
CAUTION: Before servicing any components inside your computer, see "
Safety First
—
For You and Your Computer
."
Power LED Code
Cause
Action
Blinking yellow
System power supply
failure.
See "
Getting Help
" for instructions on
obtaining technical assistance.
Solid yellow
A device on the system
board may be faulty or
is incorrectly installed.
Be sure that each microprocessor is
properly seated,
remove all expansion
cards
, and then reboot. If the system does
not boot, see "
Getting Help
" for
instructions on obtaining technical
assistance.
Solid green
and a
beep code
during
POST
A problem was
detected while the BIOS
was executing.
See
Table 2
for instructions on diagnosing
the beep code.
Solid green power
indicator
and no
beep code and no
video
during POST
The monitor or the
graphics card may be
faulty.
See "
Troubleshooting the Monitor
." If the
monitor is operating properly and is
correctly connected, see "
Getting Help
" for
instructions on obtaining technical
assistance.
Solid green power
indicator
and no
beep code but the
system locks up
during POST
An integrated system
board device may be
faulty.
See "
Getting Help
" for instructions on
obtaining technical assistance.
Summary of Contents for OptiPlex GX100
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