Compaq ML530R Service Guide - Page 140

Power, Critical System

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Connectors, Switches, Jumpers, and LED Indicators 4-7 Power The power status LED on the front panel indicates whether the unit has full power (green) or is in standby mode (amber). A flashing amber light indicates a temperature event that causes the unit to shut down for approximately 15 seconds. An unlit LED generally indicates that the unit does not have power. Critical System The critical system status LED on the front panel indicates the condition of both the memory modules (DIMMs) and processors. The memory module (DIMM) and processor diagnostic LEDs are located on the system board, as shown in Figure 4-6. NOTE: The blue status LED indicates that power is supplied to the system board. 3 2 1 Figure 4-6. Critical system diagnostic and system board status LED indicators

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Connectors, Switches, Jumpers, and LED Indicators
4-7
Power
The power status LED on the front panel indicates whether the unit has full power (green) or is
in standby mode (amber). A flashing amber light indicates a temperature event that causes the
unit to shut down for approximately 15 seconds. An unlit LED generally indicates that the unit
does not have power.
Critical System
The critical system status LED on the front panel indicates the condition of both the memory
modules (DIMMs) and processors. The memory module (DIMM)
and processor
diagnostic
LEDs are located on the system board, as shown in Figure 4-6.
NOTE:
The blue status LED
indicates that power is supplied to the system board.
1
2
3
Figure 4-6.
Critical system diagnostic and system board status LED indicators