Dell Precision 620 - Manual (Page 103)

Warning Messages
A warning message alerts you to a possible problem and asks you to do something before execution continues. For example, before you format a
diskette, a message may warn you that you may lose all data on the diskette as a way to protect against inadvertently erasing or writing over the
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 . Also see " Getting Help " for instructions on obtaining technical assistance.
Diagnostic LEDs
Light-emitting diodes (LEDs) are located on the front panel and back panel of the chassis. These LEDs emit diagnostic codes that can help you
troubleshoot a system problem. The following sections describe the meaning of the diagnostic codes.
Front Panel LEDs
Table 3 lists the codes for the front panel diagnostic LEDs, probable causes, and suggested corrective actions.
Table 3. Front Panel Diagnostic LED Codes
Back Panel LEDs
4-4-3 Math-coprocessor test failure Run the System Board Devices tests in the Dell Diagnostics .
4-4-4 Cache test failure Run the System Board Devices tests in the Dell Diagnostics .
5-2-2-1 Mismatch RDRAM device count; unsupported
RIMM device count or technology Replace RIMM pair with supported matching device count.
5-2-2-2 Mismatch RDRAM technology or timing pair;
unsupported RIMM timing Replace RIMM pair with matching technology and timing.
5-2-2-3 RDRAM levelization failure Reseat RIMMs and C-RIMMs or replace faulty or unsupported RIMMs.
NOTE: For the full name of an abbreviation or acronym used in this table, see the Glossary .
NOTE: Warning messages are generated by either your application programs or your operating system. See " Software Checks " and
the documentation that came with 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
Hard-Disk
Drive LED
Code
Cause Action
Blinking yellow Off System power supply
failed. See " Getting Help " for instructions on obtaining technical
assistance.
Blinking yellow Solid green Voltage regulator failure on
the system board. See " Getting Help " for instructions on obtaining technical
assistance.
Solid yellow N/A A device on the system
board may be faulty or is
incorrectly installed. Be sure that each processor 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 N/A 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 N/A 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 N/A An integrated system
board device may be
faulty. See " Getting Help " for instructions on obtaining technical
assistance.
NOTE: For the full name of an abbreviation or acronym used in this table, see the Glossary .