HP ProLiant ML370 Generation 3 Maintenance and Service Guide
HP ProLiant ML370 Generation 3 Server
Maintenance and Service Guide
January 2004 (Sixth Edition)
Part Number 281778-006
© 2002, 2004 Hewlett-Packard Development Company, L.P.
Microsoft, Windows, and Windows NT are trademarks of Microsoft Corporation in the U.S. and other countries.
Intel and Xeon are trademarks or registered trademarks of Intel Corporation or its subsidiaries in the United States
and other countries.
Hewlett-Packard Company shall not be liable for technical or editorial errors or omissions contained herein. The
information in this document is provided “as is” without warranty of any kind and is subject to change without
notice. The warranties for HP products are set forth in the express limited warranty statements accompanying such
products. Nothing herein should be construed as constituting an additional warranty.
HP ProLiant ML370 Generation 3 Server Maintenance and Service Guide
January 2004 (Sixth Edition)
Part Number 281778-006
Contents
About This Guide
Audience Assumptions............................................................................................................................... vii
Technician Notes........................................................................................................................................ vii
Where to Go for Additional Help.................................................................................................................ix
Integrated Management Log..................................................................................................................ix
Telephone Numbers...............................................................................................................................ix
Chapter 1
Illustrated Parts Catalog
Mechanical Components ........................................................................................................................... 1-2
System Components.................................................................................................................................. 1-3
Mechanical and System Spare Parts List................................................................................................... 1-4
Chapter 2
Removal and Replacement Procedures
Safety Considerations................................................................................................................................ 2-1
Electrostatic Discharge ....................................................................................................................... 2-1
Symbols on Equipment....................................................................................................................... 2-2
Rack Warnings and Cautions.............................................................................................................. 2-2
Server Warnings and Cautions............................................................................................................ 2-3
Preparation Procedures.............................................................................................................................. 2-4
Extending the Server from the Rack................................................................................................... 2-5
Powering Down the Server ................................................................................................................. 2-7
Removing the Server from the Rack................................................................................................... 2-9
Hot-Plug Procedures................................................................................................................................ 2-11
Feet.................................................................................................................................................... 2-12
Front Bezel........................................................................................................................................ 2-13
Access Panel ..................................................................................................................................... 2-14
Rack Bezel ........................................................................................................................................ 2-15
Rack Rails......................................................................................................................................... 2-16
Power Supply Blank ......................................................................................................................... 2-17
Hot-Plug Power Supply .................................................................................................................... 2-18
Hard Drive Blank.............................................................................................................................. 2-19
Hot-Plug SCSI Hard Drive ............................................................................................................... 2-20
Removable Media Blanks................................................................................................................. 2-21
System Fans ...................................................................................................................................... 2-22
Non-Hot-Plug Procedures ....................................................................................................................... 2-24
Redundant Fan Cage......................................................................................................................... 2-25
Hard Drive Cage ............................................................................................................................... 2-27
HP ProLiant ML370 Generation 3 Server Maintenance and Service Guide iii
Contents
PCI-X Expansion Board Slots...........................................................................................................2-29
PCI-X Expansion Slot Cover.............................................................................................................2-30
PCI-X Expansion Boards ..................................................................................................................2-31
PCI-X Slot Release Lever .................................................................................................................2-33
PCI-X Guide Clips ............................................................................................................................2-34
Processor Air Baffle ..........................................................................................................................2-35
Center Wall........................................................................................................................................2-36
IDE CD-ROM Drive .........................................................................................................................2-38
Power Button/LED Assembly ...........................................................................................................2-40
Diskette Drive....................................................................................................................................2-42
Processor Assembly ..........................................................................................................................2-44
Processor Power Module...................................................................................................................2-49
Memory .............................................................................................................................................2-51
Power Supply Backplane...................................................................................................................2-54
System Board ....................................................................................................................................2-56
Processor Cage Assembly .................................................................................................................2-57
Battery ...............................................................................................................................................2-58
Re-entering the Server Serial Number.....................................................................................................2-60
Chapter 3
Diagnostic Tools
Diagnostic Tools Overview .......................................................................................................................3-2
Chapter 4
LED Indicators and Switches
System LEDs .............................................................................................................................................4-1
Front Panel LEDs ................................................................................................................................4-2
Hot-Plug SCSI Hard Drive LEDs........................................................................................................4-3
RJ-45 Connector LEDs .......................................................................................................................4-5
Rear Unit Identification LED Switch..................................................................................................4-6
Hot-Plug Power Supply LEDs.............................................................................................................4-7
Hot-Plug Fan LEDs.............................................................................................................................4-8
System Board LEDs ............................................................................................................................4-9
External Health LED................................................................................................................................4-11
System LEDs and Internal Health LED Status Combinations.................................................................4-12
System Board Switches............................................................................................................................4-14
Non-Maskable Interrupt Switch ........................................................................................................4-15
System Identification Switch.............................................................................................................4-16
System Maintenance Switch..............................................................................................................4-17
System Configuration Settings ................................................................................................................4-18
ROMPaq Disaster Recovery Mode..........................................................................................................4-19
Chapter 5
Specifications
Tower Server..............................................................................................................................................5-2
Rack Server................................................................................................................................................5-3
Memory Modules.......................................................................................................................................5-4
1.44-MB Diskette Drive.............................................................................................................................5-5
CD-ROM Drive .........................................................................................................................................5-6
Wide Ultra3 Hot-Plug SCSI Hard Drive....................................................................................................5-8
iv HP ProLiant ML370 Generation 3 Server Maintenance and Service Guide
Index
Contents
HP ProLiant ML370 Generation 3 Server Maintenance and Service Guide v
This maintenance and service guide is a troubleshooting guide that can be used for reference
when servicing the HP ProLiant ML370 Generation 3 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 ML370 Generation 3 Server Maintenance and Service Guide vii
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.
viii HP ProLiant ML370 Generation 3 Server Maintenance and Service 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
HP ProLiant ML370 Generation 3 Server Maintenance and Service Guide ix
Illustrated Parts Catalog
This chapter provides the illustrated parts breakdown and a spare parts list for
ProLiant ML370 Generation 3 servers. Figure 1-1 shows the mechanical components.
Figure 1-2 shows the system components. Refer to Table 1-1 for the names of referenced
spare parts.
1
HP ProLiant ML370 Generation 3 Server Maintenance and Service Guide 1-1
Illustrated Parts Catalog
Mechanical Components
Figure 1-1: Mechanical components
1-2 HP ProLiant ML370 Generation 3 Server Maintenance and Service Guide
System Components
Illustrated Parts Catalog
Figure 1-2: System components
HP ProLiant ML370 Generation 3 Server Maintenance and Service Guide 1-3
Illustrated Parts Catalog
Mechanical and System Spare Parts List
Table 1-1: Mechanical and System Spare Parts List
Item Description Assembly
Number
Mechanical Components
1 Access panel (top cover) 224969-001 230985-001
2 Front bezel (tower model only)
a) 2.4-GHz and 2.8-GHz models 224991-001 230996-001
b) 3.06-GHz and above models 224991-002 319600-001
3 Rack bezel (rack model only)
a) 2.4-GHz and 2.8-GHz models 224992-002 230997-001
b) 3.06-GHz and above models 224992-003 319601-001
4 Tower hood cover 224954-001 233410-001
5 Feet (tower model only) (part of Plastics kit #21) 228148-001
6 Removable media blanks 141289-002 231212-001
7 Hard drive blank 302531-002 313046-001
8 Power supply blank 224955-001 233601-001
9 Torx T-15 tool 249476-001 290557-001
System Components
10 Power supply, 500 W 216068-002 230993-001
11 Fans, 92 mm 224994-001 231213-001
12 3.3-V lithium battery 334149-001 179322-001
13 Power button/switch with cable 225034-001 230986-001
14 Processor with heatsink
a) Intel® XeonTM 2.4-GHz 512-KB L2 cache 261668-004 290558-001
b) Intel Xeon 2.8-GHz 512-KB L2 cache 261668-006 307103-001
c) Intel Xeon 2.8-GHz 1-MB L3 cache 336417-004 359650-001
d) Intel Xeon 3.06-GHz 512-KB L2 cache 288599-007 314669-001
e) Intel Xeon 3.06-GHz 1-MB L3 cache 336417-001 336856-001
f) Intel Xeon 3.2-GHz 1-MB L3 cache 336417-002 347406-001
g) Intel Xeon 3.2-GHz 2-MB L3 cache 354750-001 356534-001
Spare Part
Number
continued
1-4 HP ProLiant ML370 Generation 3 Server Maintenance and Service Guide
Illustrated Parts Catalog
Table 1-1: Mechanical and System Spare Parts List continued
Item Description Assembly
Number
Spare Part
Number
Boards
15 System board with processor cage
a) 2.4-GHz and 2.8-GHz models 011653-001 290559-001
b) 3.06-GHz and above models 011945-002 316864-001
16 Processor power module (PPM) 292718-001 289564-001
17 Power supply backplane 011080-001 230982-001
18 SCSI Backplane with 6 x 1-inch drive cage 262171-001
Mass Storage Devices
19 Diskette drive, 3-mode, 1.44-MB 233327-001 233409-001
20 CD-ROM drive, IDE, 48X 266072-001 288894-001
Miscellaneous
21 Plastics kit 230979-001
a) Foot, stone (refer to item number 5)* 228148-001
b) Receptacle, door snap, stone* 148525-003
c) Retainer, card guide, PCI 233614-004
d) Fastener, 0.15-inch plastic standoff* 225249-001
e) Fastener, 0.202-inch plastic standoff* 225250-001
f) Clip, cable, adhesive, 1.77-inch* 241347-007
g) Clip, retainer, 0.125-inch diameter* 115151-007
h) Assembly, PCI latch and base 228194-002
22 Hardware kit 230980-001
a) Bracket, rear, removable 224965-001
b) Bracket, diskette tray* 224953-001
c) Bracket, diskette retainer* 228189-001
d) Cover, slot, PCI expansion* 306348-001
e) Bracket, blank, option board, PCI latch* 228072-001
23 Wall, center 224949-002 230999-001
24 Rack mounting kit* 232192-001 230994-001
25 Country kit* 282311-002 320753-001
26 Return kit, packing box and cushions* 230990-001
27 Processor air baffle 270593-001 290556-001
* Not shown
continued
HP ProLiant ML370 Generation 3 Server Maintenance and Service Guide 1-5
Illustrated Parts Catalog
Table 1-1: Mechanical and System Spare Parts List continued
Item Description Assembly
Number
Spare Part
Number
Cables
28 Miscellaneous data cable kit* 292229-001
a) IDE hard drive/CD-ROM drive data cable 108950-041
b) Diskette drive cable 271946-001
c) Point-to-point SCSI cable 166298-037
d) 3-device SCSI cable 148785-006
29 Miscellaneous power cable kit* 230987-001
a) Diskette and CD-ROM drive power cable 224997-001
b) Power supply cable, 24-pin 224996-001
c) Fan cage cable 224998-001
Memory
30 256-MB DDR DIMM PC2100, 1.2-in 261583-031 300699-001
31 512-MB DDR DIMM PC2100, 1.2-in* 261584-041 300700-001
32 1-GB DDR DIMM PC2100, 1.2-in* 261585-041 300701-001
33 2-GB DDR DIMM PC2100, 1.2-in* 261586-051 300702-001
Options
34 Rear fan cage 224956-001 230984-001
35 Telco rack mounting kit* 233752-001 236856-001
36 Third-party rack mounting kit* 232336-001 236857-001
37 Two-bay, hot-plug drive cage* 236894-001 253761-001
38 Keyboard* 296433-005 311059-001
39 Mouse* 103179-165 311060-001
40 AC power cord* 163719-002 187335-001
41 SCSI Ultra320 universal hot-plug hard drive*
a) 36.4-GB 10K rpm 286713-B22 289041-001
b) 72.8-GB 10K rpm 286714-B22 289042-001
c) 146.8-GB 10K rpm 286716-B22 289044-001
d) 18.2-GB 15K rpm 286775-B22 289240-001
e) 36.4-GB 15K rpm 286776-B22 289241-001
f) 72.8-GB 15K rpm 286778-B22 289243-001
* Not shown
1-6 HP ProLiant ML370 Generation 3 Server Maintenance and Service Guide
Removal and Replacement Procedures
This chapter provides subassembly/module-level removal and replacement procedures for the
server. After completing all necessary removal and replacement procedures, run the
Diagnostics program to verify that all components operate properly.
You may need the following:
•
Torx T-15 tool (ships standard with the server)
•
Diagnostics Utility—The Diagnostics utility tests the operation of server hardware and
isolates failed parts, whenever possible. Diagnostic error codes are generated when the
Diagnostics utility recognizes a problem. These error codes help identify defective
components. A Diagnostics diskette can be made by running the Server Diagnostics file
available for download from the following website:
www.hp.com/servers/manage/
Safety Considerations
2
Before performing service procedures, review the following safety information.
Electrostatic Discharge
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.
•
Keep work area free of nonconductive materials such as ordinary plastic assembly aids
and foam packing.
•
Always be properly grounded when touching a static-sensitive component or assembly.
•
Avoid touching pins, leads, or circuitry.
•
Always place drives PCB assembly-side down.
HP ProLiant ML370 Generation 3 Server Maintenance and Service Guide 2-1
Removal and Replacement Procedures
Symbols on Equipment
Any product or assembly marked with these symbols indicates that the
component exceeds the recommended weight for one individual to handle
safely.
up to 34 kg
up to 75 lb
CLASS 1 LASER PRODUCT
WARNING: To reduce the risk of personal injury or damage to the equipment,
observe local occupational health and safety requirements and guidelines for
manual material handling.
Any surface or area of the equipment marked with these symbols indicates the
presence of a hot surface or a hot component.
WARNING: To reduce the risk of injury from a hot component, allow the surface
to cool before touching it.
Any surface or area of the equipment marked with these symbols indicates the
presence of electric shock hazards. The enclosed area contains no operator
serviceable parts.
WARNING: To reduce the risk of injury from electric shock hazards, do not open
this enclosure.
Any RJ-45 receptacle marked with these symbols indicates a network interface
connection.
WARNING: To reduce the risk of electric shock, fire, or damage to the
equipment, do not plug telephone or telecommunications connectors into this
receptacle.
This label or equivalent is located on the surface of the CD-ROM drive. This label
indicates that the product is classified as a Class 1 Laser Product.
Rack Warnings and Cautions
WARNING: To reduce the risk of personal injury or damage to the equipment,
adequately stabilize the rack before extending a component outside the rack. Extend
only one component at a time. A rack may become unstable if more than one
component is extended.
WARNING: To reduce the risk of personal injury or equipment damage, 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 for single-rack installation.
• The racks are installed together in multiple-rack installations.
WARNING: When installing the server in a telco rack, adequately secure the rack frame
to the building structure at the top and bottom.
2-2 HP ProLiant ML370 Generation 3 Server Maintenance and Service Guide
WARNING: To reduce the risk of personal injury or damage to the equipment, use two
or more people to safely unload the rack from the pallet. An empty 42U rack weighs
115 kg (253 lb), is over 2.1 m (7 ft) tall, and may become unstable when moved on its
casters. Handle the rack from both sides as it rolls down the ramp from the pallet. Do
not stand in front of the rack.
CAUTION: Always begin by mounting the heaviest item on the bottom of the rack. Continue
to populate the rack from the bottom to the top.
Server Warnings and Cautions
WARNING: To reduce the risk of personal injury from hot surfaces, allow the hot-plug
drives and the internal system components to cool before touching.
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.
Removal and Replacement Procedures
• Plug the power cord into a grounded (earthed) electrical outlet that is easily
accessible at all times.
• Unplug the power cord from each power supply to disconnect power to the
equipment.
WARNING: Because the rack allows you to stack server components in a vertical
rather than a horizontal plane, you must take precautions to provide for rack stability
and safety to protect both personnel and property. Heed all cautions and warnings
throughout the installation instructions that came with the server.
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.
CAUTION: Do not operate the server for extended periods without the access panel.
Operating the server without the access panel results in improper airflow and improper cooling
that can lead to thermal damage.
HP ProLiant ML370 Generation 3 Server Maintenance and Service Guide 2-3
Removal and Replacement Procedures
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, Compaq branded, or round-hole rack
cabinet, you can 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 the server from a rack or a non-hot-plug component from the server,
power down the server and disconnect the power cables before removal.
•
Remove the server from the rack.
If the rack environment, cabling configuration, or the server location in the rack creates
unmanageable conditions, remove the server from the rack. If the server is installed in a
telco rack, you must remove the server from the rack to access internal components.
2-4 HP ProLiant ML370 Generation 3 Server Maintenance and Service Guide
Extending the Server from the Rack
To extend the server from the rack:
1. Loosen the thumbscrews that secure the front bezel to the front of the rack (1).
2. Extend the server on the sliding rack rails until the spring-load rail lock engages (2).
Removal and Replacement Procedures
Figure 2-1: Extending the server from the rack
WARNING: To reduce the risk of personal injury, be careful when pressing the server
rail-release latches and sliding the server into or out of the rack. The sliding rails could
pinch your fingertips.
HP ProLiant ML370 Generation 3 Server Maintenance and Service Guide 2-5
Removal and Replacement Procedures
After performing the installation or maintenance procedure:
1. Press the tabs on the ends of both sliding server rails and slide the server back into the
rack.
Figure 2-2: Server rails tab locations
2. Tighten the thumbscrews to secure the server in the rack.
2-6 HP ProLiant ML370 Generation 3 Server Maintenance and Service Guide
Powering Down the Server
System power for the server does not completely shut off with the front panel Power
On/Standby button. The button toggles between on and standby modes, rather than on and
off. The standby position removes power from most electronics and the drives, but portions
of the power supply and some internal circuitry remain active. To completely remove all
power from the system, you must disconnect all power cords from the server.
CAUTION: Electrostatic discharge can damage electronic components. Be sure you are
properly grounded before beginning any installation procedure. For more information, refer to
the “Electrostatic Discharge” section in this chapter.
Rack Server
To power down the rack server:
Removal and Replacement Procedures
WARNING: To reduce the risk of injury from electric shock, remove the
power cords to completely disconnect power from the system.
1. Back up the server data.
2. Shut down the operating system as directed in the operating system instructions.
3. Press the Power On/Standby button.
Figure 2-3: Pressing the Power On/Standby button (rack server)
4. Be sure that the system power LED on the front panel, near the Power On/Standby
button, is amber and that the fan noise stops.
5. Disconnect all AC power cords from the AC outlets and then from the server.
HP ProLiant ML370 Generation 3 Server Maintenance and Service Guide 2-7
Removal and Replacement Procedures
6. Disconnect all external peripheral devices from the server.
7. Place the server on a sturdy, level surface.
Tower Server
To power down the tower server:
1. Back up the server data.
2. Shut down the operating system as directed in the operating system instructions.
3. Open the front bezel.
4. Press the Power On/Standby button.
WARNING: Setting the server Power On/Standby button to the off position removes
power from most areas of the server; this process may take 30 seconds. Portions of
the power supply and some internal circuitry remain active until the AC power cord is
disconnected.
If the server has multiple power supplies installed, it is necessary to remove all power
cords to remove all power from the system.
Figure 2-4: Pressing the Power On/Standby button (tower server)
5. Be sure that the system power LED on the front panel, near the Power On/Standby
button, is amber and that the fan noise stops.
6. Disconnect all AC power cords from the AC outlets and then from the server.
7. Disconnect all external peripheral devices from the server.
8. Place the server on a sturdy, level surface.
2-8 HP ProLiant ML370 Generation 3 Server Maintenance and Service Guide
Removing the Server from the Rack
You need to remove the server from the rack when performing non-hot-plug removal and
replacement procedures. To remove the server from the rack:
1. Power down the server. Refer to “Powering Down the Server” in this chapter.
2. Disconnect all AC power cords from the AC outlets and then from the server.
Removal and Replacement Procedures
Figure 2-5: Unlocking the cable management arm hinge
Figure 2-6: Swinging open the cable management arm to access
the cables
HP ProLiant ML370 Generation 3 Server Maintenance and Service Guide 2-9
Removal and Replacement Procedures
3. Disconnect all external peripheral devices from the server.
4. Remove the cable management arm from the server.
Figure 2-7: Disconnecting all cables from the server
Figure 2-8: Removing the cable management arm from the server
NOTE: You may leave the cables attached to the cable management arm.
5. Loosen the thumbscrews that secure the front bezel to the front of the rack.
6. Slide the server out of the rack.
7. Place the server on a sturdy, level surface.
2-10 HP ProLiant ML370 Generation 3 Server Maintenance and Service Guide
Hot-Plug Procedures
You can perform hot-plug 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.
•
For hot-plug drive procedures, determine whether the drive is part of an array. For
guidelines on hot-plug SCSI hard drive replacement, refer to the HP ProLiant Servers
Troubleshooting Guide.
Removal and Replacement Procedures
HP ProLiant ML370 Generation 3 Server Maintenance and Service Guide 2-11
Removal and Replacement Procedures
Feet
NOTE: This procedure applies to tower servers only.
To remove the feet:
1. Place the server on its side.
2. Press down on the tab on the foot (1).
3. Slide the foot out of the locking slot and pull it off the chassis (2).
Figure 2-9: Removing the feet
4. Repeat steps 2 and 3 for the other feet.
To replace a foot, slide it back onto the locking slot. Be sure that the foot snaps securely into
the holder. Repeat with the remaining feet.
2-12 HP ProLiant ML370 Generation 3 Server Maintenance and Service Guide
Front Bezel
Removal and Replacement Procedures
NOTE: This procedure applies to tower servers only.
To remove the front bezel:
1. Unlock and open the front bezel.
2. Lift the front bezel and remove it from the chassis.
Figure 2-10: Removing the front bezel (tower server)
To replace the front bezel, reverse steps 1 and 2.
HP ProLiant ML370 Generation 3 Server Maintenance and Service Guide 2-13
Removal and Replacement Procedures
Access Panel
WARNING: To reduce the risk of personal injury from hot surfaces, allow internal
system components to cool before touching them.
To remove the access panel:
IMPORTANT: You must unlock the tower bezel before removing the access panel. Refer to “Front
Bezel” in this chapter.
1. Push the release latch securing the access panel to the chassis (1).
2. While holding the release latch down, slide the access panel back about 1.5 cm (0.6 in),
and then pull it away from the chassis (2).
Figure 2-11: Removing the access panel (rack server)
To replace the access panel, reverse step 2. When the release latch snaps into place, the
access panel is secure.
2-14 HP ProLiant ML370 Generation 3 Server Maintenance and Service Guide
Rack Bezel
Removal and Replacement Procedures
NOTE: This procedure applies to rack servers only.
To remove the rack bezel:
1. Remove the access panel. Refer to “Access Panel” in this chapter.
2. Loosen the internal rack bezel thumbscrews.
Figure 2-12: Loosening the rack bezel thumbscrews
3. Slide the bezel up to release the spools from the keyholes and pull it away from the server.
Figure 2-13: Removing the rack bezel
To replace the rack bezel, reverse steps 2 and 3.
HP ProLiant ML370 Generation 3 Server Maintenance and Service Guide 2-15
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