Dell External OEMR R410 Owners Manual - Page 21

Diagnostic Lights (Optional

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Diagnostic Lights (Optional) 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. NOTE: The diagnostic LEDs are not present when the system is equipped with an LCD display. Table 1-1. Diagnostic Indicator Codes (Optional) Code Causes Corrective Action The system is in a normal Plug the system into a working off condition or a possible electrical outlet and press the pre-BIOS failure has power button. occurred. The diagnostic lights are not lit after the system successfully boots to the operating system. The system is in a normal Information only. operating condition after POST. BIOS checksum failure detected; system is in recovery mode. See "Getting Help" on page 167. Possible processor failure. See "Troubleshooting the Microprocessors" on page 160. Memory failure. See "Troubleshooting System Memory" on page 152. Possible expansion card See "Troubleshooting Expansion failure. Cards" on page 159. Possible video failure. See "Getting Help" on page 167. About Your System 21

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About Your System
21
Diagnostic Lights (Optional)
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.
NOTE:
The diagnostic LEDs are not present when the system is equipped with an
LCD display.
Table 1-1.
Diagnostic Indicator Codes (Optional)
Code
Causes
Corrective Action
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.
Plug the system into a working
electrical outlet and press the
power button.
The system is in a normal
operating condition after
POST.
Information only.
BIOS checksum failure
detected; system is in
recovery mode.
See "Getting Help" on page 167.
Possible processor failure.
See "Troubleshooting the
Microprocessors" on page 160.
Memory failure.
See "Troubleshooting System
Memory" on page 152.
Possible expansion card
failure.
See "Troubleshooting Expansion
Cards" on page 159.
Possible video failure.
See "Getting Help" on page 167.