Compaq 1850R User Manual

ProLiant 1850R Servers

Maintenance and Service Guide

First Edition (July 1998)
Part Number 327160-001
Spare Part Number 327321-001
Compaq Computer Corporation

Notice

The information in this publication is subject to change without notice.
COMPAQ COMPUTER CORPORATION SHALL NOT BE LIABLE FOR TECHNICAL OR

EDITORIAL ERRORS OR OMISSIONS CONTAINED HEREIN, NOR FOR INCIDE NT AL
OR CONSEQUENTIAL DAMAGES RESULTING FROM THE FURNISHING,
PERFORMANCE, OR USE OF THIS MATERIAL. THIS INFORMATION IS PROVIDE D
“AS IS” AND COMPAQ COMPUTER CORPORATION DISCLAIMS ANY WARRANTIES,
EXPRESS, IMPLIED OR STAT UTORY AND EXPRESSLY DISCLAIMS THE IMPLIED
WARRANTIES OF MERCHANTABILITY, FITNE SS FOR PARTICULAR PURPOSE,
GOOD TITLE AND AGAINST I NFRINGEMENT.

This publication contains information protected by copyright. No part of this publication may
be photocopied or reproduced in any form without prior written consent from Compaq
Computer Corporation.

 1998 Compaq Computer Corporation.
All rights reserved. Printed in the U.S.A.

The software described in this guide is furnished under a license agreement or nondisclosure
agreement. The software may be used or copied only in accordance with the terms of the
agreement.

Compaq, Deskp ro, Fastart, Compaq Insig ht Man ager, Systempro, Systempro/LT, ProLiant,
ROMPaq, QVision , Smar t St art, NetFlex, QuickFind, Paq Fa x , ProSigni a , regist ered United
States Patent and Trademark Office.

Netelligent, Systempro/XL, SoftPaq, QuickBlank, QuickLock are trademarks and/or service
marks of Compaq Computer Corporation.

Microsoft, MS-DOS, Wi ndows, and Windows NT are r egi st ered tra d em a rks of Microsoft
Corporation.

Other product names mentioned herein may be trademarks and/or registered trademarks of
their respective companies.

Compaq ProLiant 1850R Server s M aintenance and Service Guide

First Edition (July 1998)
Part Number 327160-001
Spare Part Number 327321-001

Contents

About This Guide

Symbols in Text...................................................................................................................vii

Compaq Technician Notes...................................................................................................vii

Where to Go for Additional Help.......................................................................................... ix

Other Information Sources............................................................................................. ix

Telephone Numbers........................................................................................................ x

Chapter 1

Illustrated Parts Catalog

Mechanical Parts Exploded View....................................................................................... 1-2

System Components Exploded View...................................................................................1-2

Spare Parts List.................................................................................................................. 1-4

Chapter 2

Removal and Replacement Procedures

Electrostatic Discharge Information....................................................................................2-2

Symbols in Equipment........................................................................................................2-2

Preparation Procedures....................................................................................................... 2-3

Rack Warnings............................................................................................................2-4

Server Warnings and Precautions ................................................................................ 2-5

Server Cover.......................................................................................................................2-6

Rack-Mount Bezel.............................................................................................................. 2-7

Power/Standby Switch with LEDs......................................................................................2-8

Rear Fan............................................................................................................................. 2-9

Drive Cage Fan and Bracket ............................................................................................. 2-10

Drive Cage Fan Bracket............................................................................................. 2-11

Hot-Plug Power Supply.....................................................................................................2-12

Mass Storage Devices....................................................................................................... 2-14

Drive Installation Guidelines..................................................................................... 2-14

ProLiant 1850R Drives.............................................................................................. 2-15

Diskette Drive............................................................................................................2-25

External Storage Devices ........................................................................................... 2-25

Cable Routing Diagrams............................................................................................2-26

Riser Board and Brace......................................................................................................2-28

Memory............................................................................................................................ 2-29

Processor.......................................................................................................................... 2-32

Processor Power Module................................................................................................... 2-34

System Board ................................................................................................................... 2-35

External Replacement Battery........................................................................................... 2-36

System Board Battery................................................................................................ 2-36

iii

Compaq ProLiant 1850R Servers Maintenance and Service Guide

iv

Chapter 3

Diagnostic Tools

Default Configuration......................................................................................................... 3-2

Default Configuration Messages.................................................................................. 3-2

Utilities Access................................................................................................................... 3-2

Power-On Self-Test (POST ) ............................................................................................... 3-4

Diagnostics Software ........................................................................................................ 3-17

Running Diagnostics.................................................................................................3-18

Primary Processor Test Error Codes...........................................................................3-19

Memory Test Error Codes..........................................................................................3-20

Keyboard Test Error Codes........................................................................................ 3-21

Parallel Printer Test Error Codes............................................................................... 3-21

Video Display Unit Test Error Codes......................................................................... 3-22

Diskette Drive Test Error Codes................................................................................3-23

Monochrome Video Board Test Error Codes..............................................................3-23

Serial Test Error Codes..............................................................................................3-24

Modem Communications Test Error Codes................................................................ 3-24

Fixed Disk Drive Test Error Codes............................................................................3-25

Tape Drive Test Error Codes.....................................................................................3-26

Advanced VGA Board T est E rror C odes.................................................................... 3-27

32-Bit DualSpeed NetFlex-2 Controller an d 32-Bit DualSpeed NetFlex-2

Token Ring Controller Test Error Codes....................................................................3-29

Compaq Network Interface Cards Test Error Codes................................................... 3-30

SCSI Fixed Disk Drive Test Error Codes................................................................... 3-31

SCSI/IDE CD-ROM Drive Test Error Codes ............................................................. 3-31

SCSI Tape Drive Test Error Codes............................................................................3-32

Server Manager/R Board Test Error Codes................................................................ 3-32

Pointing Device Interface Test Error Codes............................................................... 3-33

Drive Array Advanced Diagnostics (DAAD) .................................................................... 3-34

Starting DAAD.......................................................................................................... 3-35

Integrated Management Log............................................................................................. 3-46

Multiple Ways of Viewing the Log ............................................................................ 3-46

List of Events.............................................................................................................3-48

Rapid Recovery Services................................................................................................... 3-50

Automatic Server Recovery-2.....................................................................................3-50

Server Health Logs....................................................................................................3-59

Storage Fault Recovery Tracking............................................................................... 3-63

Storage Automatic Reconstruction............................................................................. 3-63

Network Interface Fault Recovery Tracking............................................................... 3-63

Memory Fault Recovery Tracking..............................................................................3-63

Remote Service Features...................................................................................................3-64

ROMPaq .......................................................................................................................... 3-65

Compaq Insight Manager.................................................................................................3-65

Features of Compaq Insight Management.................................................................. 3-65

Compaq Insight Management Software Architecture................................................. 3-66

Chapter 4

Connectors, Switches, and Jumpers

System Board ..................................................................................................................... 4-1

Switch SW1 - System Maintenance Switchbank...........................................................4-1

SCSI Devices...................................................................................................................... 4-3

Rear Panel Connectors........................................................................................................4- 4

Riser Board Expansion Slots...............................................................................................4-5

Chapter 5

Physical and Operating Specifications

System Unit........................................................................................................................ 5-2

Hot-Plug Power Supply.......................................................................................................5-3

Memory..............................................................................................................................5-4

1.44-MB Diskette Drive......................................................................................................5-5

Low-Profile 24X Max IDE CD-ROM Drive........................................................................5-6

4.3-GB Wide-Ultra SCSI-3 Hard Drive...............................................................................5-8

Index

v

Compaq ProLiant 1850R Servers Maintenance and Service Guide

About This Guide

This Maintenance and Service Guide is a troubleshooting guide that can be used for reference
when servicing ProLiant 1850R Servers.

WARNING: To reduce the risk of per s onal injur y from electrical
shock and hazardous energy lev els , only authorized servic e
technicians should attempt to repair t his equipm ent. Improper
repairs could create c onditions that are hazardous .

IMPORTANT: The installat ion of options and servicing of this product
should be performed by individuals that are knowledgeable of the
procedures, precautions, and hazards assoc iated with equipment containing
hazardous energy circuits.

Symbols in Text

These symbols may be found in the text of this guide. They have the following meanings.

WARNING: Indicates that failure to follow direct ions in the
warning could result in bodily harm or los s of life.

vii

CAUTION: Indicates t hat failure to follow direc tions could result in
damage to equipment or loss of information.

IMPORTANT: Presents c lar ifying information or s pec ific instructions .

NOTE: Presents comment ar y , sidelights, or int er es ting points of

information.

Compaq Technician Notes

WARNING: Only authorized technic ians trained by Compaq

should attempt to repair this equipment. All troubleshooting and
repair procedures are det ailed to allow only subassembly/m odule
level repair. Because of the complexity of the individual boards and
subassemblies, no one should attempt to mak e r epair s at the
component level or to m ak e m odifications to any printed wiring
board. Improper r epair s c an c r eate a safety hazard. Any indications
of component replacem ent or printed wiring board modif ic ations may
void any warranty.

WARNING: To reduce the risk of per s onal injur y from electrical
shock and hazardous energy lev els , do not exceed the level of
repair specified in thes e pr oc edur es . Because of the com plex ity of
the individual boards and subassem blies , do not attempt to make
repairs at the com ponent level or to make modif ic ations to any
printed wiring board. I m pr oper r epair s c ould c r eate conditions that

Compaq ProLiant 1850R Servers Maintenance and Service Guide

viii About This G uide

are hazardous.
WARNING: To reduce the risk of elec tric shock or damage t o the

equipment:

■

If the system has mult iple power supplies, disconnect power
from the system by unplugging all power cords fr om t he power
supplies.

■

Do not disable the power cord gr ounding plug. The grounding
plug is an important safety feature.

■

Plug the power cord into a gr ounded ( ear thed) electrical outlet
that is easily acc es s ible at all times.

CAUTION: To properly ventilat e your syst em, you must provide at
least 12 inches (30.5 cm) of clearance at t he f r ont and back of the
computer.

CAUTION: The computer is designed to be electr ic ally gr ounded.
To ensure proper operat ion, plug the AC power cord into a pr oper ly
grounded AC outlet only.

CAUTION: To properly ventilat e your syst em, you must provide at
least 12 inches (30.5 cm) of clearance at t he f r ont and back of the
computer.

ix

IMPORTANT: Any indication of repair at the c om ponent level or
modification of a pr inted wiring board may void any warranty.

Where to Go for Additional Help

Major sources of additional information are listed below

Other Information Sources

In addition to this guide, the following information sources are available:

■

User Documentation

■

Compaq Service Quick Reference Guide

■

Service Training Guides

■

Compaq Service Advisories and Bulletins

■

Compaq QuickFind

■

Compaq Insight Man a ger

■

Compaq Download Facility: Call 1-281-518-1418

Compaq ProLiant 1850R Servers Maintenance and Service Guide

x About This Guide

Telephone Numbers

For the name of your nearest Compaq Authorized Reseller:
In the United States, call 1-800-345-1518

In Canada, call 1-800-263-5868
For Compaq technical support:

In the United States and Canada, call 1-800-386-2172
For Compaq technical support phone numbers outside the United States and Canada, visit the
Compaq Website at: http://www.compaq.com

Elsewhere, call one of the numbers listed in the following table:

Compaq Worldwide Technical Support Telephone Numbers

Location Telephone Number LocationTelephone Number

Voice Fax Voice Fax

Argentina 541- 796-8100 54-1 313 3100

Ext 21

Australia +61-2-9911-

1999

Austria [phone] [phone]-

Belgium [phone] [phone] France +33 1-4133-

Brazil +55-11 246-

7866

Canada 905-707-1715 416-229-8898 Hungary +36-1-201-

* NOTE: Eastern Europe and the M iddle East are also supported from Germ any

61-2-9911­1800

80

+55-11524­8050

Distributio
n
Center
Europe

Ecuador +011-59-3-

Finland +358-0-615-

Germany * [phone]+49-89-9933-

+31-183­96400

225-4343

599

4100

8776

+31-183­620488

+011-59-3-225­4342

[phone]­9898

+33 1-4133­4400

1158
[phone]

Caribbean 281-518-2206 281-518-8166 India +91-80-559-

6023

Central America 281- 378- 2206 281-518-8166 Italy [phone]+39-2-824-2015

Chile [phone] [phone] Japan [phone] [phone]
China +86-10-849-

2928

Colombia [phone] [phone] Malaysia +603-

Czech Republic [phone] [phone] Mexico +525-229-

Denmark [phone] [phone] Netherlands+31-182-

+86-10-849­6726

Korea +82-2-3470-

0766

7541122

7900

565888

+91-80-559­6025

[phone]

[phone]

[phone]

+31-182­538348

continued

Compaq Worldwide Technical Support Telephone Numbers

continued

Location Telephone Number LocationTelephone Number

Voice Fax Voice Fax

New Zealand +64- 9- 307-

3143 Ext 817

Norway +47-2207-

2000

Poland +48-22-630-

3535

Portugal +3511-412-

8400

Puerto Rico 809- 765- 4360 809-765-4336 Taiwan 886-2-735-

Russia +7095-

9671700

Scotland [phone]-

8000

Singapore
APD
Asia/Pacific

[phone]

[phone] Spain +341-640-

1500

[phone] South

Africa

+48-22-630­3553

+3511-412­0654

[phone] Thailand +66-2-679-

[phone]­7745

[phone]

Sweden +468-703-

Switzerland+41-1838-

United
Kingdom

United
States

+27-11-728­6999

5200

2111

1000

6222
+44-1-41-

270-4000
281-370-

0670

[phone]

[phone]

[phone]

[phone]

886-2-732-2660

[phone]

[phone]­4100

281-514-1740

xi

Compaq
Asia

[phone]

[phone]

Venezuela+582-953-

8844

[phone]

Compaq ProLiant 1850R Servers Maintenance and Service Guide

Chapter 1

Illustrated Parts Catalog

This chapter provides the illustrated parts breakdown and a spare parts list for the ProLiant
1850R Servers. See Table 1-1 for the names of referenced spare parts.

1-1

Compaq ProLiant 1850R Servers Maintenance and Service Guide

1-2 Illustrat ed P ar ts Catalog

Mechanical Parts Exploded V iew

2

3

9

27e

27g

1

26

12

29

Figure 1-1. Mechanical parts exploded view of the Pr oLiant 1850R serv er

System Components
Exploded View

4

1-3

9

6

13

17

7

12

27c

10

27d

1

8

4

11

15

21

5

20

22

22

Figure 1-2. System component s exploded view of the ProLiant 1850R server

Compaq ProLiant 1850R Servers Maintenance and Service Guide

1-4 Illustrat ed P ar ts Catalog

Spare Parts List

Ref. Description Spare Part #

CHASSIS

1 Chassis 327309-001
2 Server Cover 327313-001
3 Rack-Mount Bezel 327311-001

SYSTEM COMPO NENTS

Fan173907-001

4

5 Power/Standby Switch with Cable and LEDs 327312-001

Intel Pentium II 400 Processor 313624-001

6

Table 1-1

Spare Parts List

External Replacement Battery

7

Hot-Plug Redundant Power Supply 283623-001

8

BOARDS

Riser Board with Brace 333109-001

9

Power Supply Backplane Board 333112-001

10

SCSI Backplane Board with Drive Cage 333111-001

11

12 System I/O Board without Processor 333110-001
13 Power Processor Module 327660-001
14 Remote Insight Board (NA Modem) 294040-001 *
15 CD-ROM Adapter Board 167208-001

MEMORY

16 32-MB SDRAM DIMM Memory M odule 317747-001 *
17 64-MB SDRAM DIMM Memory M odule 317745-001
18 128-MB SDRAM DIMM Memory M odule 317756-001 *
19 256-MB SDRAM DIMM Memory M odule 317749-001 *

160274-001

continued

1-5

Spare Parts Li st - P roLiant 1850R Servers

continued

Item Description Spare Part #

MASS STORAGE DEVI CES

24X Max IDE Low Profile CD-ROM 327921-001

20

1.44-MB, 3.5-inch Diskett e Drive ( 3- m ode) 288456-001

21

22 4.3-GB Pluggable Wide-Ultra SCSI-3 Drive 295680-B21

CABLE ASSEMBLIES

23 Miscellaneous Power Cable Kit

327919-001 *
a) 14-Pin Signal Power Cable Assembly
b) 20-Pin Main Power Cable Assembly

24 Miscellaneous Signal Cable Kit

327920-001 *
a) 28 inch F1, Point-to-Point SCSI Cable Assembly
b) Two Device, F1, SCSI Cable Assembly
c) Diskette Drive Cable Assembly
d) Eight Inch, F1, CD Data Cable Assembly

MISCELLANEOUS

25 CD Mount Tray Assembly 327318-001 *
26 Removable Media Tray
27 Miscellaneous Plastics Kit

327319-001 *

a) Fan Guard Power Supply *
b) Fan Cover *
c) Wireform Fan G uar d
d) Push-Lock Fastener
e) Processor Retention Brackets *
f) Fan Mounting Bracket *
g) Slot Cover

e) Card Guide
28 Rack-mounting Kit 327310-001 *
29 Hot-Plug Cover 296200-001
30 Return Kit 327322-001 *
31 Cartons and Buns, Internat ional 327322-002 *
32 Illustrated Parts Map 327320-001 *
33 Maintenance and Service Guide 327321-001 *

continued

Compaq ProLiant 1850R Servers Maintenance and Service Guide

1-6 Illustrat ed P ar ts Catalog

Spare Parts Li st - P roLiant 1850R Servers

continued

Item Description Spare Part #

KEYBOARDS

34 Keyboard, U.S. English 160648-101 *
35 Keyboard, U.K. English 160648-103 *
36 Keyboard, German 160648-104 *
37 Keyboard, French 160648-105 *
38 Keyboard, Italian 160648-106 *
39 Keyboard, Spanish 160648-107 *
40 Keyboard, Danish 160648-108 *
41 Keyboard, Norwegian 160648-109 *
42 Keyboard, Swedish/Finnish 160648-110 *
43 Keyboard, Swiss 160648-111 *
44 Keyboard, French Canadian 160648-112 *
45 Keyboard, Portuguese 160648-113 *
46 Keyboard, Turkish 160648- 114 *
47 Keyboard, Greek 160648-115 *
48 Keyboard, Latin American 160648-116 *
49 Keyboard, Arabic 160648-117 *
50 Keyboard, Belgian 160648-118 *
51 Keyboard, BHCSY 160648-120 *
52 Keyboard, Hungarian 160648-121 *
53 Keyboard, Polish 160648-122 *
54 Keyboard, Slovakian 160648-123 *
55 Keyboard, Russian 160648-124 *
56 Keyboard, Czech 160648-129 *

continued

1-7

Spare Parts List - ProLiant 1850R Servers

continued

Item Description Spare Part #

OPTIONS

57 Compaq Netelligent 56K Fax Modem 294912-001 *

12/24-GB DAT Drive 340593-001 *

58

Pentium II 350 Processor 313623-001 *

59

FIXED DISK DRIVES

60 4.3-GB Pluggable Wide-Ultra SCSI-3, 10,000 rpm Drive 336680-001 *
61 9.1-GB Pluggable Wide-Ultra SCSI-3, 10,000 rpm Drive 336381-001 *
62 9.1-GB Pluggable Wide-Ultra SCSI-3 Drive 313715-001 *
63 18.2-GB Pluggable Wide-Ultra SCSI-3 Drive 336382-001 *
64 18.2-GB Pluggable Wide-Ultra SCSI-3, 10,000 rpm Drive N/A *

CONTROLLERS

65 SMART-2SL Array Controller 242777-001 *
66 SMART-2DH Array Controller 295243-001 *

189639-001 *

67 Compaq Dual Channel Wide-Ultra SCSI-3 Controller 295626-001 *

NETWORK CONTROLLERS

68 Netelligent Dual 10/100 TX PCI UTP Controller 242560-001 *
69 Netelligent 4/16 TR PCI UTP/STP Controller 268010-001 *
70 Netelligent 10/100 TX PCI UTP Controller 317606-001 *

* Not Shown

Compaq ProLiant 1850R Servers Maintenance and Service Guide

Chapter 2

Removal and Replacement
Procedures

This chapter provides subassembly/module-level removal and replacement procedures for
ProLiant 1850R Servers. After completing all necessary removal and replacement procedures,
run the diagnostics program to verify that all components operate properly.

The following tools are recommended:

■

Torx T-15 screwdriver

■

Torx T-8 screwdriver

■

Nut driver

■

From the Compaq SmartStart a nd Support Software CD:

❏

System Configuration Utility software

❏

Drive Array Advanced Diagnostics software

❏

Diagnostics software

2-1

Compaq ProLiant 1850R Servers Maintenance and Service Guide

2-2 Removal and Replacement Pr oc edur es

Electrostatic Discharge I nformation

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. Provide a wrist strap
connected to the work surface and properly grounded tools and equipment.

■

Keep work area free of non-conductive materials such as ordinary plastic assembly aids
and foam packing.

■

Make 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.

Symbols in Equipment

WARNING: Any s ur face or area of the equipment marked

with these symbols indic ates the presence of a hot surface
or hot component. If this surf ac e is c ontacted, the pot ential
for injury exist s . To reduce risk of injur y from a hot
component, allow the s ur face to cool before t ouc hing.

WARNING: Any s ur face or area of the equipment marked
with these symbols indic ates the presence of elec trical
shock hazards. The enclosed area contains no operator
serviceable parts. To reduce risk of injur y from electrical
shock hazards, do not open this enclosure.

WARNING: Any RJ - 45 r ec eptacle marked with thes e
symbols indicates a Network Interf ac e Connec tion. To
reduce risk of electrical shock, f ir e, or damage to the
equipment, do not plug t elephone or telecommunications
connectors into this receptacle.

CLASS 1 LASER PRODUCT

WARNING: T his label or equiv alent is located on the
surface of your CD- ROM drive. This label indic ates that
the product is classified as a CLASS 1 LASER
PRODUCT.

WARNING: To reduce the risk of elec trical shock or
damage to the equipment, disconnect power fr om the
server by unplugging all power cords from either the
electrical outlet or the server.

2-3

Compaq ProLiant 1850R Servers Maintenance and Service Guide

2-4 Removal and Replacement Pr oc edur es

Preparation Procedures

Before beginning any of the removal and replacement procedures:

1. Turn OFF the server and a ny pe ri phera l de v ices.

2. Disconnect the AC power cord from the AC outlet, then from the server.

3. Disconnect all external peripheral devices from the server.

4. For most removal and replacement procedures, you must remove the server from the

rack and place it on a sturdy table or workbench. Refer to the ProLiant 1850R Setup

and Installation Guide.

WARNING:

remove the server from the rack by y our s elf. A minimum of two
people are required to remove the server from the rack.

WARNING:

components on a vert ic al r ather than horizontal plane, y ou m us t take
precautions to prov ide for rack stabilit y and s afety. It is im por tant
that you follow t hes e pr ec autions to provide for r ac k s tability and
safety, and to protect both per s onnel and pr oper ty. Heed all cautions
and warnings throughout t he ins tallation instruct ions that came with
the server.

CAUTION:

components. Be s ur e y ou ar e pr oper ly gr ounded before beginning
any installation procedur e. See the section t itled “Elec trostatic
Discharge” for more inform ation.

To reduce the risk of personal injury, do not attempt to

Because the rack allows y ou to stack comput er

Electrostatic discharge can damage elect r onic

Rack Warnings

2-5

WARNING:

from the bottom up. This makes the rack “bottom-heavy” and helps
prevent the rack from becoming unstable.

WARNING:

the equipment, do not ov er load the AC supply branch circuit that
provides power to
the rack.

WARNING:

equipment, the bot tom stabilizers on t he equipm ent must be fully
extended. Be sure that the equipment is pr oper ly s uppor ted/braced
when installing options and cards .

WARNING:

equipment, at least two people are needed to safely unload the rack
from the pallet. An empty 42U rack weighs 253 lb ( 115 k g) , is over
seven ft (2. 1m ) tall, and may become unst able when being m ov ed
on its casters . Do not stand in front of the rack as it rolls down the
ramp from the pallet; handle it from the sides.

WARNING:

component is extended for any reason. To r educ e the risk of
personal injury, be sure that the rack is adequately stabilized before
extending a component out s ide the rack, and extend only one
component at a tim e.

Always load the heaviest item first and load t he r ac k

To reduce the risk of personal injury, fir e, or damage to

To reduce the risk of personal injury or damage to the

To reduce the risk of personal injury or damage to the

A rack may become uns table if more than one

WARNING:

leveling jacks are extended to the floor, that the full weight of the
rack rests on the level floor, and that either stabilizers ar e ins talled
or multiple racks are coupled for stability.

Before beginning work on the r ac k , be sure that the

Compaq ProLiant 1850R Servers Maintenance and Service Guide

2-6 Removal and Replacement Pr oc edur es

Server Warnings and Precautions

WARNING:

allow the internal system components t o cool bef ore touching.

CAUTION:

temporary inter r uptions with a regulating uninter r uptible power
supply (UPS). This device protects t he hardware from damage
caused by power surges and voltage spikes and keeps the system
in operation during a power failure.

CAUTION:

with system unit covers on. Proper cooling will not be achieved if the
system unit covers
are removed.

To reduce the risk of personal injury from hot surfaces,

Protect t he s er v er from power fluctuations and

The ProLiant 1850R Serv er

must always be operat ed

Server Cover

Remove the server cover to gain access to drive bays, expansion slots, boards, and switches
inside the server. To re move t he serve r c over:

1. Perform the preparation procedures. See page 2-4.

2. Loosen the three captive thumbscrews on the rack-mount bezel.

3. Use the grip slot to slide the c ove r toward t he rea r of t he uni t about 1 i nch (2. 5 c m ).

4. Move the server cover to the ri ght side of t he unit .

5. Lift off the server cover.

2-7

Figure 2-1.Removing the server cover

Reverse steps 1 through 5 to replace the server cover.

Compaq ProLiant 1850R Servers Maintenance and Service Guide

2-8 Removal and Replacement Pr oc edur es

Rack-Mount Bezel

To remove the rack-mount bezel:

WARNING:

computer is tur ned off and the power cord is dis c onnec ted from the
electrical outlet .

1. Perform the preparation procedures. See page 2-4.

2. Loosen the five thumbscrews on the bezel.

3. Remove the eight T-15 screws from the front of the bezel.

4. Remove the rack-mount bezel.

Before removing the rack-mount bezel, be sure the

Figure 2-2. Removing the rack-m ount bezel screws

Reverse steps 1 through 4 to replace the rack-mount bezel.

Power/Standby Switch with LEDs

To remove the power/standby switch with LEDs:

1. Perform the preparation procedures. See page 2-4.

2. Remove the server cover. See pa ge 2-7.

3. Remove the diskette drive. See page 2-27.

4. Remove the two female connectors 1.

5. Remove the LEDs from the holders in the power/standby switch 2.

3

1

2-9

5

2

4

Figure 2-3. Removing the power/standby switch with LEDs

6. Push inward slightly at points 3 and 4 to release the power/standby switch from

the bezel.

7. Remove the switch parts from the bezel 5.

Reverse steps 1 through 7 to replace the power/standby switch with LEDs.

NOTE

: The LEDs have on e f lat side, which must be correctly oriented
before in sert ion into
the holder.

Compaq ProLiant 1850R Servers Maintenance and Service Guide

2-10 Removal and Replacement Pr oc edur es

Rear Fan

To remove the rear fan:

1. Perform the preparation procedures. See page 2-4.

2. Remove the server cover. See pa ge 2-7.

3. Unplug the rear fan from the system board 1.

4. Remove the four retention pins 2 attaching the fan assembly to the chassis.

5. Remove the rear fan 3.

2

3

Figure 2-4. Removing the rear f an

Reverse steps 1 through 5 to replace the rear fan.

1

Drive Cage Fan and Bracket

To remove the drive cage fan and bracket:

1. Perform the preparation procedures. See page 2-4.

2. Remove the server cover. See pa ge 2-7.

3. Disconnect the data and power cables connected to the CD-ROM adaptor board

(if installed) and the hot-plug SCSI backplane board.

4. Unplug the fan from the power supply.

5. Remove the three T-15 screws connecting the fan and bracket to the back of the

drive cage.

6. Pull the fan and bracket a way from t he drive c age .

2-11

Figure 2-5. Removing the drive cage fan

Reverse steps 1 through 6 to replace the drive cage fan and bracket.

Compaq ProLiant 1850R Servers Maintenance and Service Guide

2-12 Removal and Replacement Pr oc edur es

Drive Cage Fan Bracket

To disassemble the drive cage fan bracket:

1. Perform the preparation procedures. See page 2-4.

2. Remove the server cover. See pa ge 2-7.

3. Remove the drive ca ge fan a nd bra cke t . See pa ge 2-11.

4. Push in on the two push-lock fasteners 1 holding the bra c ket on t he fa n.

5. Remove the bracket a nd fan gua rd from the fa n 2.

1

2

Figure 2-6. Disassembly of the drive cage fan br acket

Reverse steps 1 through 5 to assemble the dri ve c a ge fa n bra cke t .

Hot-Plug Power Supply

The hot-plug power supply module is used for both the Compaq ProLiant 1850R server bays.
To remove a hot-plug power supply, or to install an additional one:

2-13

IMPORTANT:

When using a single power s upply m odule, it must populate
the outer bay. B oth bays can be populated for r edundant power supply
capability.

1. Perform the preparation procedures. See page 2-4.

2. Push in the port-colored tabs on the power supply bl a nk 1.

3. Pull the tab out until it opens 2.

4. Pull the power supply blank out the ba c k of the c hassis 3.

3

1

2

Figure 2-7. Removing the hot- plug power supply blank

Compaq ProLiant 1850R Servers Maintenance and Service Guide