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HP PROLIANT DL740 User Manual

HP ProLiant DL740 Server
Maintenance and Service Guide
February 2004 (Fourth Edition)
Part Number 270853-004
© Copyright 2003, 2004 Hewlett-Packard Development Company, L.P.
The information contained herein is subject to change without notice. The only warranties for HP products and services are set forth in the express warranty statements accompanying such products and services. Nothing herein should be construed as constituting an additional warranty. HP shall not be liable for technical or editorial errors or omissions contained herein.
Microsoft, Windows, and Windows NT are U.S. registered trademarks of Microsoft Corporation. Intel, Pentium, and Itanium are trademarks or registered trademarks of Intel Corporation or its subsidiaries in the United States and other countries. UNIX is a registered trademark of The Open Group. Linux is a U.S. registered trademark of Linus Torvalds.
HP ProLiant DL740 Server Maintenance and Service Guide
February 2004 (Fourth Edition) Part Number 270853-004

Contents

About This Guide
Audience Assumptions............................................................................................................................... vii
Technician Notes........................................................................................................................................ vii
Access Panel Labels .................................................................................................................................. viii
Related Documents.......................................................................................................................................ix
Where to Go for Additional Help..................................................................................................................x
Integrated Management Log...................................................................................................................x
Telephone Numbers................................................................................................................................x
Chapter 1
Illustrated Parts Catalog
System Chassis.......................................................................................................................................... 1-2
Power and Media Module ......................................................................................................................... 1-3
Host Module.............................................................................................................................................. 1-5
Miscellaneous............................................................................................................................................ 1-7
Chapter 2
Service Preparation
Safety Considerations................................................................................................................................ 2-1
Electrostatic Discharge Information ................................................................................................... 2-1
Rack Warnings and Precautions ......................................................................................................... 2-2
Server Warnings and Precautions ....................................................................................................... 2-2
Server Modules.......................................................................................................................................... 2-4
Preparation Procedures.............................................................................................................................. 2-7
System Interconnect LEDs ................................................................................................................. 2-8
Hot-Plug Procedures ........................................................................................................................... 2-8
Non-Hot-Plug Procedures................................................................................................................... 2-9
Powering Up the Server.................................................................................................................... 2-10
Power-On Self-Test (POST)............................................................................................................. 2-12
Re-entering the Server Serial Number .................................................................................................... 2-14
Chapter 3
Chassis Components Removal and Replacement Procedures
Top Access Panels..................................................................................................................................... 3-1
Cable Management System ....................................................................................................................... 3-2
HP ProLiant DL740 Server Maintenance and Service Guide iii
Contents
Chapter 4
Host Module Removal and Replacement Procedures
Host Module...............................................................................................................................................4-1
Removing the Host Module.......................................................................................................................4-1
Processor Boards and Processors...............................................................................................................4-4
Identifying ...........................................................................................................................................4-4
Removing Processor Boards and Processors.......................................................................................4-6
Memory Cartridge......................................................................................................................................4-9
Identifying ...........................................................................................................................................4-9
DIMM Overview...............................................................................................................................4-12
Installing DIMMs in the Cartridge....................................................................................................4-13
Hot-Replacing Memory.....................................................................................................................4-14
PCI-X Hot Plug and Non-Hot-Plug I/O Expansion Boards.....................................................................4-15
PCI Hot Plug Utility..........................................................................................................................4-16
Locating the I/O Expansion Slots......................................................................................................4-17
PCI Hot Plug Button..........................................................................................................................4-17
PCI Hot Plug LED Indicators............................................................................................................4-18
Removing or Replacing a Non-Hot-Plug Expansion Board..............................................................4-20
Removing or Replacing a PCI Hot Plug Expansion Board...............................................................4-23
Array Enabler Board/Integrated Array Bypass Kit..................................................................................4-25
Removing the Array Enabler Board..................................................................................................4-25
I/O Expansion Slot Dividers ....................................................................................................................4-27
Hot-Plug Fans ..........................................................................................................................................4-28
Replacing a Hot-Plug Fan .................................................................................................................4-30
Input/Output Board ..................................................................................................................................4-31
System Board...........................................................................................................................................4-34
Chapter 5
Power and Media Module Removal and Replacement Procedures
Removing the Power and Media Module ..................................................................................................5-2
Hot-Plug Power Supplies...........................................................................................................................5-4
Estimating Power Requirements for a Specific Server Configuration ................................................5-4
Removing and Replacing a Hot-Plug Power Supply...........................................................................5-5
Power Supply LED Indicators.............................................................................................................5-7
Power and Media Module Bezel................................................................................................................5-8
Hot-Plug Hard Drives ................................................................................................................................5-9
Hot-Plug SCSI Hard Drive Replacement Guidelines..........................................................................5-9
Hard Drive Blank ..............................................................................................................................5-11
Removing a Hot-Plug SCSI Hard Disk Drive...................................................................................5-12
Removing the DVD/CD-ROM Drive ......................................................................................................5-13
Removable Media Assembly ...................................................................................................................5-14
Power and Media Module Cable Routing Diagram.................................................................................5-17
Chapter 6
Diagnostic Tools
Diagnostic Tools Utility Overview............................................................................................................6-2
For More Information ................................................................................................................................6-4
iv HP ProLiant DL740 Server Maintenance and Service Guide
Chapter 7
Connectors, Switches, and LED Indicators
Connectors................................................................................................................................................. 7-1
Rear Panel Connectors........................................................................................................................ 7-1
System Board ............................................................................................................................................ 7-3
I/O Board Components ....................................................................................................................... 7-4
Switches..................................................................................................................................................... 7-5
I/O Board Configuration Switches...................................................................................................... 7-5
LED Indicators .......................................................................................................................................... 7-6
System Power LED Switch................................................................................................................. 7-7
Unit Identification LED Switches (Front and Rear) ........................................................................... 7-8
System Interconnect LED Indicators.................................................................................................. 7-9
System Attention LED Indicators..................................................................................................... 7-10
System Activity LED Indicators....................................................................................................... 7-11
Hot-Plug SCSI Hard Drive LED Indicators...................................................................................... 7-12
Power Supply LED Indicators .......................................................................................................... 7-14
Hot-Plug Fan LED Indicators ........................................................................................................... 7-15
PCI Hot Plug LED Indicators ........................................................................................................... 7-16
Memory Cartridge LED Indicators................................................................................................... 7-18
DIMM Status LED Indicators........................................................................................................... 7-19
Contents
Chapter 8
Physical, Operating, and Performance Specifications
Server Specifications................................................................................................................................. 8-2
Power Supply Specification ...................................................................................................................... 8-3
Dual Inline Memory Module Specifications ............................................................................................. 8-4
1.44-MB Diskette Drive............................................................................................................................ 8-4
DVD-ROM Drive...................................................................................................................................... 8-5
24X Max IDE CD-ROM Drive ................................................................................................................. 8-6
Hot-Plug U320 SCSI Hard Drives ............................................................................................................ 8-8
Hot-Plug Ultra3 SCSI Hard Drives ........................................................................................................... 8-9
Smart Array 5i Controller........................................................................................................................ 8-10
NC7781 PCI-X Gigabit Server Adapter.................................................................................................. 8-11
Index
HP ProLiant DL740 Server Maintenance and Service Guide v
This maintenance and service guide can be used for reference when servicing the HP ProLiant DL740 server.
WARNING: To reduce the risk of personal injury from electric shock and hazardous energy levels, only authorized service technicians should attempt to repair this equipment. Improper repairs can create conditions that are hazardous.

Audience Assumptions

This guide is for service technicians. HP assumes you are qualified in the servicing of computer equipment and trained in recognizing hazard in products with hazardous energy levels and are familiar with weight and stability precautions for rack installations.

Technician Notes

WARNING: Only authorized technicians trained by HP should attempt to repair this equipment. All troubleshooting and repair procedures are detailed to allow only subassembly/module-level repair. Because of the complexity of the individual boards and subassemblies, no one should attempt to make repairs at the component level or to make modifications to any printed wiring board. Improper repairs can create a safety hazard.
WARNING: To reduce the risk of personal injury from electric shock and hazardous energy levels, do not exceed the level of repairs specified in these procedures. Because of the complexity of the individual boards and subassemblies, do not attempt to make repairs at the component level or to make modifications to any printed wiring board. Improper repairs can create conditions that are hazardous.
WARNING: To reduce the risk of electric shock or damage to the equipment:
• Disconnect power from the system by unplugging all power cords from the power
supplies.
• Do not disable the power cord grounding plug. The grounding plug is an important
safety feature.
• Plug the power cord into a grounded (earthed) electrical outlet that is easily
accessible at all times.

About This Guide

HP ProLiant DL740 Server Maintenance and Service Guide vii
About This Guide
CAUTION: To properly ventilate the system, you must provide at least 7.6 cm (3.0 in.) of clearance at the front and back of the server.
CAUTION: The computer is designed to be electrically grounded (earthed). To ensure proper operation, plug the AC power cord into a properly grounded AC outlet only.
NOTE: Any indications of component replacement or printed wiring board modifications may void any warranty.

Access Panel Labels

A significant amount of server configuration and options installation information is provided on the panel labels. As shown in Figure 1, these labels are located on the top of the unit.
NOTE: These labels do not contain warning and caution information. Refer to this guide or to the option documentation for the applicable warnings and cautions.
Figure 1: Location of server labels
viii HP ProLiant DL740 Server Maintenance and Service Guide
Table 1: Location of Server Labels
Item Component Item Component
1 I/O board removal label 6 I/O board configuration label
2 Hot Plug RAID Memory cartridge
operation label
3 System status LED indicators label 8 Rear connectors label
4 Removing power and media module
label
5 Front components label

Related Documents

For additional information on the topics covered in this guide, refer to the following documentation:
• Rack Resource Kits are included with the racks and include the following (depending on
rack model):
About This Guide
7 System board components label
9 Removing host module label
— Rack Products Documentation CD—Available on the HP website or included with
the Rack Resource Kit. — 10000 Series Rack Resource Kit—Included with all HP 10000 Series racks. — 9000 Series Products Audio-Visual (AV) CD Kit—Included with the Compaq
branded 9000 Series Rack Resource Kit. — The Rack 7000/4000 Series Rack Resource Kit—Included with all Compaq branded
7000 and 4000 Series racks. — Rack Builder Online—Available on the HP website. Instructions on how to access
and use this online tool are included in the Rack Resource Kit.
• Documentation included on the Documentation CD:
— Smart Array 5i Controller User Guide — ROM-Based Setup Utility User Guide — HP ProLiant Servers Troubleshooting Guide — PCI Hot Plug Administration Guide — Remote Insight Lights-Out Edition II User Guide — Server Online Reference Guide
• ProLiant DL740 Power Calculator—Available on the ActiveAnswers website at
activeanswers.compaq.com/
HP ProLiant DL740 Server Maintenance and Service Guide ix
About This Guide

Where to Go for Additional Help

In addition to this guide, the following information sources are available:
• User documentation
• Service Quick Reference Guide
• Service training guides
• Service advisories and bulletins
• QuickFind information services
• Insight Manager software

Integrated Management Log

The server includes an integrated, nonvolatile management log that contains fault and management information. The contents of the Integrated Management Log (IML) can be viewed with Insight Manager.

Telephone Numbers

For the name of the nearest HP authorized reseller:
• In the United States, call 1-800-345-1518.
• In Canada, call 1-800-263-5868.
For HP technical support:
• In the United States and Canada, call 1-800-652-6672.
• Outside the United States and Canada, refer to
www.hp.com
x HP ProLiant DL740 Server Maintenance and Service Guide
Illustrated Parts Catalog
This chapter provides the illustrated parts breakdown and a spare parts list for the HP ProLiant DL740 server. See the table following each illustration for the names of referenced spare parts.
1
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Illustrated Parts Catalog

System Chassis

Figure 1-1: System chassis exploded view
Table 1-1: System Chassis Spare Parts List
Item Description Spare Part Number
System Chassis
1 Power and media module
2 System chassis with access panels
3 Host module without PCI-X riser 280612-001 Assemblies
4 Cable management system reel assembly and rails 280620-001
4a Cable management arm* 326779-001
4b Cable management/Velcro* 342294-001
*Not shown
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Power and Media Module

Illustrated Parts Catalog
Figure 1-2: Power and media module exploded view
Table 1-2: Power and Media Module Spare Parts List
Item Description Spare Part Number
Power and Media Module Components
1 Power and media module chassis
2 Power and media module bezel
3 Backplane board 280618-001
4 Power supplies 285381-001
continued
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Illustrated Parts Catalog
Table 1-2: Power and Media Module Spare Parts List continued
Item Description Spare Part Number
Mass Storage
5 LVDS 1-inch hard drive blank 313046-001
6 Wide Ultra3 hard drive with tray, 18.2-GB, 1-inch, 10000 rpm 152190-001
Wide Ultra3 hard drive with tray, 36.4-GB, 1-inch, 10000 rpm* 177986-001
Wide Ultra3 hard drive with tray, 18.2-GB, 1-inch, 15000 rpm* 189395-001
U320 Universal hard drive with tray, 36.4-GB, 1-inch, 10000 rpm* 289041-001
U320 Universal hard drive with tray, 72.8-GB, 1-inch, 10000 rpm* 289042-001
U320 Universal hard drive with tray, 146.8-GB, 1-inch, 10000 rpm* 289044-001
U320 Universal hard drive with tray, 18.2-GB, 1-inch, 15000 rpm* 289240-001
U320 Universal hard drive with tray, 36.4-GB, 1-inch, 15000 rpm* 289241-001
U320 Universal hard drive with tray, 72.8-GB, 1-inch, 10000 rpm* 289243-001
7 DVD drive 268795-001
8 1.44-MB diskette drive with mechanicals
a) Power On/Standby LED b) UID LED
280617-001
*Not shown
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Host Module

Illustrated Parts Catalog
Figure 1-3: Host module exploded view
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Illustrated Parts Catalog
Table 1-3: Host Module Spare Parts List
Item Description Spare Part Number
Host Module Components
1 Host module chassis
2 PCI-X Hot Plug switchboard with cable 280615-001
3 Processor board 314379-001
4 Processor board cover 320104-001 Processors
5 Processor (1.5 GHz with 1-MB cache), clip, and heatsink 319952-001
Processor (2.0 GHz with 1-MB cache), clip, and heatsink* 327839-001
Processor (2.0 GHz with 2-MB cache), clip, and heatsink* 319953-001
Processor (2.2 GHz with 2-MB cache), clip, and heatsink* 352311-001
Processor (2.5 GHz with 1-MB cache), clip, and heatsink* 327840-001
Processor (2.7 GHz with 2-MB cache), clip, and heatsink* 352312-001
Processor (2.8 GHz with 2-MB cache), clip, and heatsink* 327841-001
Processor (3.0 GHz with 4-MB cache), clip, and heatsink* 352313-001
Reserved Memory
6 Hot-plug memory cartridge 280613-001
7 Memory module, 256MB, PC133, 128Mb, ECC SDRAM DIMM 159377-001
Memory module, 512MB, PC133, 256Mb, ECC SDRAM DIMM* 177628-001
Memory module, 1GB, PC133, 256Mb, LP, ECC SDRAM DIMM* 321851-001
Memory module, 2GB, PC133, 512Mb, ECC SDRAM DIMM* 321852-001 Miscellaneous
8 PCI-X slot board 280614-001
9 Array enabler board 122232-001
10 Hot-plug I/O fan 280619-001
Miscellaneous cables*
a) 3.5 in LNG, no twist b) Power, 6.5 in c) Hot-Plug, PCI d) LED board, flex e) Power switch f) Cord, AC, 10 A, 9 ft
*Not shown
280623-001
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Illustrated Parts Catalog

Miscellaneous

Table 1-4: Miscellaneous Spare Parts List
Item Description Spare Part Number
Miscellaneous plastics*
a) Guide, card, processor b) Puller assembly, PCI, LV c) Receptacle, interconnect, AC d) Guide, memory e) Gear, rack, processor f) Guide, fan g) Lightpipe, fan h) Divider, upper fan i) Ejector, right j) Ejector, left k) Grill, exhaust, chassis rear l) Retainer, cardguide, PCI, CBN (quantity 9) m) Assembly, PCI latch and base, PCI, CBN n) Baffle, power backplane o) Assembly extraction tool
LED display board 280616-001
Internal battery* 179322-001
Ethernet loopback RJ-45* 317465-001
Return kit* 333783-001
280624-001
*Not shown
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Safety Considerations

Before performing service procedures, review the following safety information.

Electrostatic Discharge Information

A discharge of static electricity can damage static-sensitive devices or microcircuitry. Proper packaging and grounding techniques are necessary precautions to prevent damage. To prevent electrostatic damage, observe the following precautions:
• Transport products in static-safe containers, such as conductive tubes, bags, or boxes.
• Keep electrostatic-sensitive parts in their containers until they arrive at static-free
stations.
• Cover workstations with approved static-dissipating material. Use a wrist strap connected
to the work surface and properly grounded tools and equipment.
2
Service Preparation
• Keep the work area free of nonconductive materials, such as ordinary plastic assembly
aids and foam packing.
• Be sure you are always properly grounded when touching a static-sensitive component or
assembly.
• Avoid touching pins, leads, or circuitry.
• Always place drives PCB assembly-side down.
• Use conductive field service tools.
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Service Preparation

Rack Warnings and Precautions

WARNING: To reduce the risk of personal injury or damage to the equipment, be sure that:
• The leveling jacks are extended to the floor.
• The full weight of the rack rests on the leveling jacks.
• The stabilizers are attached to the rack if it is a single-rack installation.
• The racks are coupled in multiple-rack installations.
• Only one component is extended at a time. A rack can become unstable if more
than one component is extended for any reason.
CAUTION: Always begin by mounting the heaviest item in the bottom of the rack. Continue to
populate the rack from the bottom to the top.

Server Warnings and Precautions

WARNING: The HP ProLiant DL740 server weighs 61 kilograms (135 pounds) when fully assembled. To reduce the risk of personal injury or damage to the equipment:
48-61 kg
105-135 lb
• Observe local health and safety requirements and guidelines for manual material
handling.
• Obtain adequate assistance to lift and stabilize the product during installation or
removal.
• Remove all modules and power supplies to reduce the overall weight of the
product.
WARNING: To reduce the risk of personal injury from electric shock and hazardous energy levels, only authorized service technicians should attempt to repair this equipment. Improper repairs could create hazardous conditions.
WARNING: To reduce the risk of personal injury from hazardous energy or damage to the equipment when working on energized servers:
• Remove all watches, rings, and any other loose-fitting jewelry.
• Do not use conductive tools inside the server that could bridge live parts.
WARNING: To reduce the risk of electric shock or damage to the equipment:
• Do not disable the power cord grounding plug. The grounding plug is an important
safety feature.
• Plug the power cord into a grounded electrical outlet that is easily accessible at all
times.
• Install the power supply before connecting the power cord to the power supply.
• Unplug the power cord before removing the power supply from the server.
• If the system has multiple power supplies, disconnect power from the system by
unplugging all power cords from the power supplies.
2-2 HP ProLiant DL740 Server Maintenance and Service Guide
Service Preparation
WARNING: To reduce the risk of personal injury from hot surfaces, allow the internal system components to cool before touching them.
CAUTION: Because the HP ProLiant DL740 server does not have safety interlocks, it is
possible for a unit to be operated without the cover and air baffles properly installed. This could cause thermal damage in the system and could void the warranty. The rack-mountable HP ProLiant DL740 server should always be operated with the system unit cover on. Proper cooling cannot be achieved if the system unit cover is removed for extended periods of time.
CAUTION: Protect the server from power fluctuations and temporary interruptions with a regulating uninterruptible power supply (UPS). This device protects the hardware from damage caused by power surges and voltage spikes and keeps the system in operation during a power failure.
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Service Preparation

Server Modules

In the HP ProLiant DL740 server, options and accessories are easily accessed through top access panels and two removable modules: the power and media module, and the host module. See Figure 2-1, Figure 2-2, and Figure 2-3 for identification of these modules and other components.
Figure 2-1: Server modules
Item Description
1 Power and media module
2 Host module
2-4 HP ProLiant DL740 Server Maintenance and Service Guide
Service Preparation
Figure 2-2: Power and media module components
Item Description
1 Ultra3 hard drive SCSI ID 0
2 Ultra3 hard drive SCSI ID 1
3 Ultra3 hard drive SCSI ID 2
4 Ultra3 hard drive SCSI ID 3
5 Power supply 1
6 Power On/Standby switch
7 DVD-ROM drive
8 1.44-MB diskette drive
9 Unit identification LED switch
10 Media bay eject button
11 Power supply 2
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Service Preparation
Figure 2-3: Host module components
Item Description
1 Processor board 1
2 Processor board 2
3 Memory cartridge 1
4 Memory cartridge 2
5 Memory cartridge 3
6 Memory cartridge 4
7 Memory cartridge 5
8 I/O board
9 System fan 2
10 System fan 1
For details on cable connections, refer to Chapter 6 in the HP ProLiant DL740 Server User Guide.
2-6 HP ProLiant DL740 Server Maintenance and Service Guide
Service Preparation
Table 2-1 describes the contents of the modules and how to access the components.
Table 2-1: Module Components and Access
Module Contents To Access
PCI Hot Plug expansion slots Open the top access panels.
Configuration switches Open the top access panels.
Fans 1 and 2 Open the top access panels.
Host module
Power and media module
Processor boards
Memory (DIMMs)
Power supply 1 and 2
Media bay Hot-plug hard drives Access directly at the front of the server.
Open the top access panels, open the processor board cover, and remove the processor boards.
Open the top access panels and remove the memory cartridge.
Access directly at the front of the server.
Access directly at the front of the server.

Preparation Procedures

To access some components and perform certain service procedures, you must do one or more of the following:
• Extend the server from the rack.
If you are performing service procedures in an HP rack or third-party rack cabinet, use the locking feature of the rack rails to support the server and gain access to internal components.
• Power down the server.
If you must remove a server from a rack or a non-hot-plug component from a server, power down the server.
• Remove the server from the rack.
If the rack environment, cabling configuration, or server location in the rack creates awkward conditions, remove the server from the rack.
HP ProLiant DL740 Server Maintenance and Service Guide 2-7
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Service Preparation
To service the HP ProLiant DL740 server, you might need the following:
• Flat-blade screwdriver (4 mm)
• Torx T-15 screwdriver
• T8 screwdriver
• Phillips screwdriver
• HP SmartStart CD:
— Drive Array Advanced Diagnostics (DAAD) software — Array Diagnostics Utility (ADU) software — ROM-Based Inspect Utility — ROM-Based Diagnostics

System Interconnect LEDs

The system interconnect LEDs on the ProLiant DL740 server provide a closed-loop checking mechanism for verifying proper component mating and interconnections between critical server components. LEDs inside the front of the server 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 LED is illuminated, reseat the component represented by the LED. Refer to the hood labels for component location. See Chapter 7 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, be sure that the fan zone is fully populated.
• For hot-plug power supply procedures, be sure 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 DL740 Server User Guide.
The access panels can be removed while the server is powered up without causing a system shutdown. When the server is in Standby mode, portions of the power supply, auxiliary power (+5 V), and some internal circuitry remain active.
2-8 HP ProLiant DL740 Server Maintenance and Service Guide

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: You must be knowledgeable about electrostatic discharge information before conducting
the preparation procedures. For electrostatic discharge information, see “Electrostatic Discharge Information” in this chapter.
Powering Down the Server
System power in the HP ProLiant DL740 server does not completely shut off with the front panel Power On/Standby switch. The switch toggles between on and standby, rather than on and off. The Standby position provides auxiliary power (+5V) and removes main power from most electronics and the drives, but portions of the power supply, the system interlock circuitry, and some internal circuitry remain active. You must disconnect all power cords from the server to completely remove all power from the system.
Service Preparation
To power off the server:
1. Back up the server data.
2. Shut down the operating system as directed by the operating system instructions.
3. If the operating system does not power the system down, press the Power On/Standby switch to Standby, thereby disabling the main power supply output and providing auxiliary power (+ 5 V) to the server. Standby does not disable auxiliary power.
4. Be sure that the system LED on the front panel, near the Power On/Standby switch, turns off and fan noise abates.
Figure 2-4: System power LED and switch
HP ProLiant DL740 Server Maintenance and Service Guide 2-9
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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.
2-10 HP ProLiant DL740 Server Maintenance and Service Guide
Service Preparation
4. The system activity LEDs (NIC1, NIC2, and Media) begin to blink in sequence until the
memory initialization is complete.
Figure 2-5: System activity LEDs
5. Check the hard drive LEDs on the front of the server. The hard drive LEDs should blink.
If the LEDs do not light, verify that the hard drives are fully installed in the system and that the array bypass is initialized.
6. Check the DIMM status LEDs. The DIMM status LEDs for each cartridge will illuminate
solid and then go out in sequence, beginning with cartridge 1 and ending with cartridge 5 (left to right cartridges 1, 2, 3, 4, 5).
7. Watch for memory system initialization. The memory system initializes as the memory
cartridge power LEDs on all five memory cartridges begin blinking. After the memory system is initialized, all memory cartridge power LEDs will illuminate solid.
8. The server begins the Power-On Self-Test (POST) sequence.
HP ProLiant DL740 Server Maintenance and Service Guide 2-11
HP CONFIDENTIAL Codename: Jethro Part Number: 270853-004 Last Saved On: 2/10/04 3:46 PM
Service Preparation

Power-On Self-Test (POST)

As the POST process continues during server power-up, you need to check the monitor for the following information, displayed in sequence:
1. HP initialization screen
2. System ROM family and date
3. Memory initialization, memory detected, and redundant memory
The system briefly displays the F1 prompt to open the Memory Configuration Manager.
Figure 2-6: System F1 prompt
2-12 HP ProLiant DL740 Server Maintenance and Service Guide
Service Preparation
Press the F1 key to enter the Memory Configuration Manager. This ROM-based tool, shown in Figure 2-7, is used to examine and upgrade the server memory configuration.
Figure 2-7: Memory Configuration Manager
4. Processor initialization information. The number, speed, and cache size of each processor
is listed as it initializes.
5. The system briefly displays the F8 prompt to configure the iLO using iLO RBSU.
6. Storage controller information. The system briefly displays the F8 prompt after each
controller POST to open the Option ROM Configuration for Arrays (ORCA).
HP ProLiant DL740 Server Maintenance and Service Guide 2-13
HP CONFIDENTIAL Codename: Jethro Part Number: 270853-004 Last Saved On: 2/10/04 3:46 PM
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