Diagnostic Lights - Dell PowerEdge T110 II Owner's Manual

Diagnostic Lights

The four diagnostic indicator lights on the system front panel display error
codes during system startup. Table 1-1 lists the causes and possible corrective
actions associated with these codes. A highlighted circle indicates the light is
on; a non-highlighted circle indicates the light is off.
Table 1-1. Diagnostic Indicator Code
Code Causes
The system is in a normal
off condition or a possible
pre-BIOS failure has
occurred.
The diagnostic lights are
not lit after the system
successfully boots to the
operating system.
The system is in a normal
operating condition after
POST.
BIOS checksum failure
detected; system is in
recovery mode.
Possible processor failure. See "Troubleshooting the
Memory failure.
Possible expansion card
failure.
Possible video failure.
Corrective Action
Plug the system into a working
electrical outlet and press the
power button.
Information only.
See "Getting Help" on page 135.
Processor" on page 125.
See "Troubleshooting System
Memory" on page 119.
See "Troubleshooting Expansion
Cards" on page 124.
See "Getting Help" on page 135.
About Your System
17