HP DL760 ProLiant DL760 Generation 2 Server Maintenance and Service Guide - Page 27

System Interconnect LEDs, Hot-Plug Procedures, information - g2 troubleshooting

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Service Preparation - Drive Array Advanced Diagnostics (DAAD) software - Array Diagnostics Utility (ADU) software - ROM-Based Inspect - ROM-Based Diagnostics System Interconnect LEDs The system interconnect LEDs on the ProLiant DL760 G2 server provide a closed-loop checking mechanism for verifying proper component mating and interconnections between critical server components. LEDs on the I/O lid provide visual assistance in isolating components to check if the server will not power up due to a component or module that is not fully installed. If a status indicator light is on, reseat the component represented by the indicator. Refer to the hood labels for component location. Refer to Chapter 8 for more information. Hot-Plug Procedures You can perform some service procedures without powering down the server. Before performing hot-plug procedures, observe the following guidelines: • For hot-plug fan procedures, ensure that the fan zone is fully populated. • For hot-plug power supply procedures, ensure that a redundant power supply is installed and connected to a power source. • For hot-plug drive procedures, determine whether the drive is part of an array. For more information, refer to the "Hot Plug SCSI Hard Drive Replacement Guidelines" in the HP Servers Troubleshooting Guide. • For hot-plug expansion board procedures, ensure that the proper drivers for the PCI Hot Plug functionality are installed. For more information, refer to the HP ProLiant DL760 Generation 2 Server User Guide. The access panels can be removed while the server is powered on without causing a system shutdown. When the server is in standby mode, portions of the power supply, auxiliary power (+5V), and some internal circuitry remain active. Non-Hot-Plug Procedures You must power down the server to perform non-hot-plug procedures. WARNING: To reduce the risk of electric shock or damage to the equipment, disconnect power from the server by unplugging all power cords from either the electrical outlet or the server. In systems with multiple power supplies, you must disconnect all the power cords to completely remove power from the system. IMPORTANT: It is necessary to be knowledgeable about electrostatic discharge information before conducting the preparation procedures. For electrostatic discharge information, refer to "Electrostatic Discharge Information" in this chapter. 2-8 HP ProLiant DL760 Generation 2 Server Maintenance and Service Guide HP CONFIDENTIAL Codename: Jed Part Number: 201262-003 Last Saved On: 2/10/04 4:04 PM

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Service Preparation
—
Drive Array Advanced Diagnostics (DAAD) software
—
Array Diagnostics Utility (ADU) software
— ROM-Based
Inspect
— ROM-Based
Diagnostics
System Interconnect LEDs
The system interconnect LEDs on the ProLiant DL760 G2 server provide a closed-loop
checking mechanism for verifying proper component mating and interconnections between
critical server components. LEDs on the I/O lid provide visual assistance in isolating
components to check if the server will not power up due to a component or module that is not
fully installed. If a status indicator light is on, reseat the component represented by the
indicator. Refer to the hood labels for component location. Refer to Chapter 8 for more
information.
Hot-Plug Procedures
You can perform some service procedures without powering down the server. Before
performing hot-plug procedures, observe the following guidelines:
•
For hot-plug fan procedures, ensure that the fan zone is fully populated.
•
For hot-plug power supply procedures, ensure that a redundant power supply is installed
and connected to a power source.
•
For hot-plug drive procedures, determine whether the drive is part of an array. For more
information, refer to the “Hot Plug SCSI Hard Drive Replacement Guidelines” in the
HP
Servers Troubleshooting Guide.
•
For hot-plug expansion board procedures, ensure that the proper drivers for the PCI Hot
Plug functionality are installed. For more information, refer to the
HP ProLiant DL760
Generation 2 Server User Guide.
The access panels can be removed while the server is powered on without causing a system
shutdown. When the server is in standby mode, portions of the power supply, auxiliary power
(+5V), and some internal circuitry remain active.
Non-Hot-Plug Procedures
You must power down the server to perform non-hot-plug procedures.
WARNING:
To reduce the risk of electric shock or damage to the equipment,
disconnect power from the server by unplugging all power cords from either the
electrical outlet or the server. In systems with multiple power supplies, you must
disconnect all the power cords to completely remove power from the system.
IMPORTANT:
It is necessary to be knowledgeable about electrostatic discharge information before
conducting the preparation procedures. For electrostatic discharge information, refer to “Electrostatic
Discharge Information” in this chapter.
2-8
HP ProLiant DL760 Generation 2 Server Maintenance and Service Guide
HP CONFIDENTIAL
Codename: Jed Part Number: 201262-003 Last Saved On: 2/10/04 4:04 PM