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
Service Preparation
5. Disconnect all power cords from the server to disable power to the server.
For some removal and replacement procedures, you must remove the server from the rack
and place it on a sturdy table or workbench. Refer to the HP ProLiant DL740 Server User
Guide for further instructions.
Powering Up the Server
When you power up the server, it should go through the following sequence. Record any
discrepancies and error messages that occur. Be sure that the server is safely installed in an
adequate environment before powering up for the first time.
Be sure that AC power is supplied to each power supply on the back of the server. The left
LEDs on the power supplies blink green if AC power is supplied.
1. Turn on the machine by pressing the Power On/Standby switch. The system power LED
is integrated into the Power On/Standby switch.
2. Check the system power LED:
— The system power LED should blink to indicate that the system is powering up. If the
LED does not blink when the power button is pressed, then one of the system
components is improperly installed or no main power is applied to the system power
supplies.
— If the system power LED is amber, check the system interconnect status indicators,
explained in the “System Interconnect LEDs” section of this chapter.
— The system power LED blinks every one to two seconds. This action indicates that
the Power/On Standby switch has been pressed and that the system will power up
momentarily.
3. The power supplies’ left LED blinks green as soon as AC power is applied to the rear of
the server. This also signifies that the power supplies are providing the system with
auxiliary power.
— If the power supplies’ left LED is not on or blinking, the server will not power up.
Check the AC connection.
— When the left LED illuminates solid green, listen for the fans to start.
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