Dell OptiPlex GX240 - Manual (Page 205)

S o l v i n g Pr o b l e m s 203
NOTE: Warning
messages are generated
by either your application
programs or your
operating system. See
“
Software Problems ” and
the documentation that
accompanied your
operating system and
application programs.
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 the
Diagnostics Checklist found in
“ Getting Help .” Also see “ Getting Help ” for instructions on obtaining
technical assistance.
Diagnostic Lights
Should your computer fail to operate, lights on the front panel and back
panel of the computer provide diagnostic codes that can help you
troubleshoot a computer problem. The following sections describe the
meaning of the diagnostic codes.
CAUTION: Before servicing any components inside your computer,
see “ CAUTION: Safety Instructions .”
Front Panel Lights
P o w e r S w i t c h D i a g n o s t i c L i g h t C o d e s
Power Light Code Cause Action
Blinking yellow The computer power
supply may have failed. Ensure that the voltage
switch setting is correct. If
the computer still has no
power, 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
computer 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 the previous table for
instructions on diagnosing
the beep code.