Dell PowerEdge R310 Hardware Owner's Manual - Page 23
Diagnostic Lights (Optional - error light
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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. Table 1-1. Diagnostic Indicator Code 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 169. Possible processor failure. See "Troubleshooting the Processor" on page 160. Memory failure. See "Troubleshooting System Memory" on page 153. Possible expansion card See "Troubleshooting an failure. Expansion Card" on page 159. Possible video failure. See "Getting Help" on page 169. About Your System 23