Owners Manual

Amber LED state White LED state Description
steady off PSU is working but failed to fetch code
off steady system is ON
Power on LED system diagnostics indicator codes
Amber LED blinking scheme — The pattern is 2 or 3 blinks followed by a short pause then x number of blinks up to 7. The same pattern is
repeated after a long pause. For example 3, 5 = 3 amber blinks followed by a short pause, and then 5 amber blinks followed by long pause.
Then, the pattern is repeated.
Table 7. Power on LED system diagnostics indicator codes
Amber LED state Description
2, 1 system board failure
2, 2 system board, PSU or PSU cabling failure
2, 3 system board, memory or CPU failure
2, 4 coin cell battery failure
2, 5 corrupt BIOS
2, 6 CPU configuration failure or CPU failure
2, 7 memory modules are detected, but there is a memory failure
3, 1 possible peripheral card or system board failure
3, 2 possible USB failure
3, 3 no memory modules are detected
3, 4 possible system board error
3, 5 memory modules are detected, but a memory configuration or compatibility error
3, 6 possible system board resource and/or hardware failure
3, 7 some other device failure with messages on screen
Power indicator codes for power supply unit
To perform a quick health check on the non-redundant power supply unit (PSU) of the system, press the self-diagnostic button.
Figure 4. PSU status indicator and self-diagnostic button
1. self-diagnostic button
2. PSU status indicator
Dell PowerEdge T30 system overview
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