ProLiant DL740 Server Maintenance and Service Guide
Table Of Contents
- HP ProLiant DL740 Server Maintenance and Service Guide
- Notice
- Contents
- About This Guide
- Chapter 1: Illustrated Parts Catalog
- Chapter 2: Service Preparation
- Chapter 3: Chassis Components Removal and Replacement Procedures
- Chapter 4: Host Module Removal and Replacement Procedures
- Chapter 5: Power and Media Module Removal and Replacement Procedures
- Chapter 6: Diagnostic Tools
- Chapter 7: Connectors, Switches, and LED Indicators
- Connectors
- System Board
- Switches
- LED Indicators
- System Power LED Switch
- Unit Identification LED Switches (Front and Rear)
- System Interconnect LED Indicators
- System Attention LED Indicators
- System Activity LED Indicators
- Hot-Plug SCSI Hard Drive LED Indicators
- Power Supply LED Indicators
- Hot-Plug Fan LED Indicators
- PCI Hot Plug LED Indicators
- Memory Cartridge LED Indicators
- DIMM Status LED Indicators
- Chapter 8: Physical, Operating, and Performance Specifications
- Index

Connectors, Switches, and LED Indicators
Power Supply LED Indicators
Each power supply has status and AC power LEDs. See Figure 7-12 and Table 7-3 for a
detailed description of both indicators.
Figure 7-12: Power supply LEDs
Table 7-3: Power Supply LEDs
Item Condition Meaning
Green blinking
AC power is connected to this power
supply. System is in standby mode.
Green Normal operation.
1 AC Power
Off Normal operation.
Off No AC power.
Amber
Fault detected in this power supply.
Must replace power supply.
-or-
No AC power plugged into
corresponding rear AC power port.
Amber blinking Power supply is in current limit mode.
2 Attention
7-14 HP ProLiant DL740 Server Maintenance and Service Guide
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