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 repeated
pattern has a long pause inserted in the middle. For example 2, 4 = 2 amber blinks followed by a short pause, and then 4 amber blinks
followed by long pause. Then, the pattern is repeated.
Table 6. Power on LED system state indicator codes
Amber LED state
White LED state
Description
off
off
system is OFF
off
blinking
system is in sleep state
blinking
off
power supply unit (PSU) failure
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.
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Dell PowerEdge T30 system overview
