Dell 2100-180 User Manual

Dell

®

®

PowerEdge

PowerEdge

®

®

2100/180 and 2100/200 Syst emsDell

2100/180 and 2100/200 Syst ems

SERVICE MANUAL

®

Model MMM

Dell® PowerEdge® 2100/180 and 2100/200 Systems

SERVICE MANUAL

®

Information in this document is sub jec t to change without notice.



1996 Dell Computer Corporation. A ll ri ghts reserve d .

Reproduction in any man ne r w ha tsoe ve r w ithout the written permission of Dell Com put er Corporation is strictly forbidden.
Trademarks used in this text: Dell, the DELL logo, and PowerEdge are registered trademarks of Dell Computer Corporation; MS-DOS and

Microsoft are registered trademarks of Microsoft Corporation; IBM is a registered trademark of Inte rnational Business Machines Corporation;
Intel, LANDesk, and Pentium are registered trademarks of Intel Corporatio n .

Other trademarks and trade names may be used in this document to refer to either the entities claiming the marks and names or their products.
Dell Computer Corporat ion disclaims any proprietary inter est in tr ade marks and trade names other than its own .

September 1996 P/N 82502

Index

B

battery, removal
beep codes
bezel, removal
boot routine, observing when

troubleshooting

bracket, hard-disk drive, removal

, 4-18

, 3-1

, 4-4

, 2-3

, 4-10

C

cables, DC power
CD-ROM drive

access indicator location
location
removal

, 1-4, 4-7
, 4-8

computer

back/left side internal view
cover removal
front/right side internal view
orientation
technical specifications

configuration guidelines, SCSI drives

, 1-12

, 1-3

, 1-5

, 4-3

, 1-4

, 1-3

, 1-19

, 1-7

D

DC power distribution diagram
DIMMs

ECC

, 1-6

installation
removal

, 4-15

, 4-15

socket population rules

diskette drive

access indicator location
location
removal

, 1-4, 4-7

, 4-8

diskette-based diagnostics
DREQ line assignments, list of
drives

boot device

, 1-8

externally-accessible drive bays
location of

, 4-7

SCSI configuration guidelines
SCSI ID numbers

, 1-8

SCSI termination jumper examples
SCSI termination jumpers

, 1-13

, 1-6

, 1-3

, 2-6

, 1-18

, 1-8

E

, 1-3

, 1-7

, 1-9

connectors, locations

, 1-14, 4-14

control panel assembly

location
removal

, 1-4
, 4-6

ECC

, 1-6

EISA expansion cards

, 1-6

error messages, system, list of
expansion subsystem

, 1-6

, 3-3

Index 1

expansion-card slots
expansion-cards, removal
external visual inspection

, 1-6

, 4-11
, 2-2

externally-accessible drives, removal

, 4-8

J

jumpers

list of

, 1-16

location on system board

, 1-15

F

front bezel

features
insert removal
removal

, 1-3

, 4-5

, 4-4

H

hard-disk SCSI drives

bracket removal
location

, 4-7

, 4-10

hard-disk drives, SCSI

configurations

, 1-7

hard-disk-drive access indicator
help, getting

, 2-6

I

ID numbers, SCSI devices
indicators

, 1-3

, 1-8

, 1-3

M

memory, system
messages, error
microprocessor removal

, 1-6

, 3-3

, 4-16

P

PCI expansion cards
Plug and Play ISA expansion cards
POST beep codes
power button

, 1-3

power indicator
power supply

cables
connectors

, 1-10

, 1-12

, 1-10

DC voltage ranges
illustrated

, 1-12

power distribution diagram
removal

, 4-12

precautionary measures

, 1-6

, 3-1

, 1-3

, 1-10

, 1-13

, 4-2

, 1-6

initial procedures
initialization, system error messages

, 2-1

, 3-3

R

insert removal, front bezel
integrated

SCSI controller

, 1-7

server management
video controller

, 1-7

interrupt assignments, list of

2 Dell PowerEdge 2100/180 and 2100/200 Systems Service Manual

, 4-5

reset button
resource conflicts, eliminating

, 1-6

, 1-17

, 1-3

, 2-5

S

T

SCSI controller, integrated
SCSI devices, ID numbers

, 1-7

, 1-8

SCSI hard-disk drives. See also drives
specifications, technical
subsystems, advanced expansion
system battery removal

, 1-19

, 1-6

, 4-18

system board

component locations
illustrated
removal

, 1-14

, 4-19

system cooling fan, removal
system error messages, list of
system power supply

, 4-14

, 4-13

, 3-3

, 1-10

System Setup program

advanced menu
boot options submenu
exit menu
key functions, list of
main menu
menus

, A-1

screen color combinations
screen conventions
security menu
starting

, A-1

, A-6

, A-5

, A-10

, A-2

, A-3

, A-3

, A-1

, A-8

technical specifications

, 1-19

termination jumpers

SCSI drives

, 1-8

troubleshooting

boot routine, observing

, 2-3

external visual inspection
initial procedures
initial user contact

, 2-1

, 2-1

internal visual inspection

U

user contact, initial

, 2-1

V

video controller, integrated
visual inspection

external
internal

, 2-2

, 2-4

, 2-2

, 2-4

, 1-7

system unit. See computer

Index 3

Figures

Figure 1-1. Computer Orientation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3

Figure 1-2. Front-Bezel Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3

Figure 1-3. Front/Right Side Internal View . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4

Figure 1-4. Back/Left Side Internal View . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5

Figure 1-5. SCSI Termination Jumper Examples. . . . . . . . . . . . . . . . . . . . . . 1-9

Figure 1-6. DC Power Connector P1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-11

Figure 1-7. DC Power Connectors P2, P3, P4, P5, and P6. . . . . . . . . . . . . . 1-11

Figure 1-8. DC Power Connectors P7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-12

Figure 1-9. DC Power Cables. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-12

Figure 1-10. DC Power Distribution. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-13

Figure 1-11. System Board Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-14

Figure 1-12. System Board Jumpers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-15

Figure 4-1. Computer Cover Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3

Figure 4-2. Front Bezel Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4

Figure 4-3. Front-Bezel Insert Removal. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5

Figure 4-4. Control-Panel Assembly Removal. . . . . . . . . . . . . . . . . . . . . . . . 4-6

Figure 4-5. Drive Hardware . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-7

Figure 4-6. Externally Accessible Drives Removal . . . . . . . . . . . . . . . . . . . . 4-8

Figure 4-7. Drive-Mounting Rails and Extensions Removal . . . . . . . . . . . . . 4-9

Figure 4-8. Hard-Disk Drive Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-10

Figure 4-9. Expansion Card Removal. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-11

Figure 4-10. Power Supply Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-12

Figure 4-11. System Cooling-Fan Removal. . . . . . . . . . . . . . . . . . . . . . . . . . 4-13

Figure 4-12. System Board Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-14

Figure 4-13. DIMM Removal. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-15

Figure 4-14. DIMM Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-15

Figure 4-15. Microprocessor Securing Clip Removal . . . . . . . . . . . . . . . . . . 4-16

Figure 4-16. Microprocessor/Heat Sink Assembly. . . . . . . . . . . . . . . . . . . . . 4-17

Figure 4-17. System Battery Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-18

Figure 4-18. System Board Assembly Removal. . . . . . . . . . . . . . . . . . . . . . . 4-19

Figure 4-19. System Board Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-20

Figure A-1. Main Menu. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-3

DELL CONFIDENTIAL Preliminary 4/19/00

xi

Figure A-2. Boot Options Submenu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-5

Figure A-3. Advanced Menu. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-6

Figure A-4. Security Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-8

Figure A-5. Exit Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-10

xii

DELL CONFIDENTIAL Preliminary 4/19/00

Tables

Table 1-1. DC Voltage Ranges . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-10

Table 1-2. Jumper Descriptions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-16

Table 1-3. Interrupt Assignments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-17

Table 1-4. DREQ Line Assignments. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-18

Table 1-5. Technical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-19

Table 3-1. POST Beep Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2

Table 3-2. System Error Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3

Table A-1. Main Menu Categories. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-4

Table A-2. Boot Options Submenu Categories . . . . . . . . . . . . . . . . . . . . . . . A-5

Table A-3. Advanced Menu Categories. . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-7

Table A-4. Security Menu Categories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-9

Table A-5. Exit Menu Categories. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-11

DELL CONFIDENTIAL Preliminary 4/19/00

xiii

xiv

DELL CONFIDENTIAL Preliminary 4/19/00

Contents

Chapter 1

System Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

System Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2

System Memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6

Advanced Expansion Subsystem . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6

Integrated Server Management. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6

Video Controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7

Integrated SCSI Controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7

SCSI Hard-Disk Drives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7

SCSI Configuration Guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7

SCSI ID Numbers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-8

Device Termination . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-8

System Unit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-10

System Power Supply. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-10

Pin Assignments for the DC Power Connectors. . . . . . . . . . . . . . . . . . 1-10

DC Power Distribution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-12

System Board Layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-14

System Board Jumpers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-15

Interrupt Assignments. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-17

DMA Channel Assignments. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-18

Technical Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-19

v

Chapter 2

Basic Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1

Initial User Contact. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1

External Visual Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2

Observing the Boot Routine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3

Internal Visual Inspection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4

Eliminating Resource Conflicts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5

Running the Diskette-Based Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6

Getting Help . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6

Chapter 3

Beep Codes and Error Messages. . . . . . . . . . . . . . . . . . . . 3-1

POST Beep Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1

System Error Messages. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3

Chapter 4

Removing and Replacing Parts . . . . . . . . . . . . . . . . . . . . . 4-1

Recommended Tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1

Precautionary Measures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2

Computer Cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3

Front Bezel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4

Front-Bezel Inserts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5

Control Panel Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-6

Drives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-7

Externally Accessible Drives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-8

Hard-Disk Drives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-10

Expansion Cards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-11

System Power Supply. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-12

System Cooling Fan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-13

System Board Components. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-14

DIMMs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-15

Microprocessor/Heat Sink Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-16

System Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-18

System Board Assembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-19

System Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-20

vi

Appendix A

System Setup Program. . . . . . . . . . . . . . . . . . . . . . . . . . . . A-1

System Setup Screens. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-1

Screen Conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-1

Key Function Box. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-2

Screen Color Combinations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-3

Main Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-3

Boot Options Submenu. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-5

Advanced Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-6

Security Menu. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-8

Exit Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-10

Index

Figures

Figure 1-1. Computer Orientation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3

Figure 1-2. Front-Bezel Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3

Figure 1-3. Front/Right Side Internal View . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4

Figure 1-4. Back/Left Side Internal View . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5

Figure 1-5. SCSI Termination Jumper Examples. . . . . . . . . . . . . . . . . . . . . . 1-9

Figure 1-6. DC Power Connector P1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-11

Figure 1-7. DC Power Connectors P2, P3, P4, P5, and P6. . . . . . . . . . . . . . 1-11

Figure 1-8. DC Power Connectors P7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-12

Figure 1-9. DC Power Cables. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-12

Figure 1-10. DC Power Distribution. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-13

Figure 1-11. System Board Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-14

Figure 1-12. System Board Jumpers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-15

Figure 4-1. Computer Cover Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3

Figure 4-2. Front Bezel Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4

Figure 4-3. Front-Bezel Insert Removal. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5

Figure 4-4. Control-Panel Assembly Removal. . . . . . . . . . . . . . . . . . . . . . . . 4-6

Figure 4-5. Drive Hardware . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-7

Figure 4-6. Externally Accessible Drives Removal . . . . . . . . . . . . . . . . . . . . 4-8

vii

Figure 4-7. Drive-Mounting Rails and Extensions Removal . . . . . . . . . . . . . 4-9

Figure 4-8. Hard-Disk Drive Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-10

Figure 4-9. Expansion Card Removal. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-11

Figure 4-10. Power Supply Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-12

Figure 4-11. System Cooling-Fan Removal. . . . . . . . . . . . . . . . . . . . . . . . . . 4-13

Figure 4-12. System Board Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-14

Figure 4-13. DIMM Removal. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-15

Figure 4-14. DIMM Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-15

Figure 4-15. Microprocessor Securing Clip Removal . . . . . . . . . . . . . . . . . . 4-16

Figure 4-16. Microprocessor/Heat Sink Assembly. . . . . . . . . . . . . . . . . . . . . 4-17

Figure 4-17. System Battery Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-18

Figure 4-18. System Board Assembly Removal. . . . . . . . . . . . . . . . . . . . . . . 4-19

Figure 4-19. System Board Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-20

Figure A-1. Main Menu. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-3

Figure A-2. Boot Options Submenu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-5

Figure A-3. Advanced Menu. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-6

Figure A-4. Security Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-8

Figure A-5. Exit Menu. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-10

Tables

Table 1-1. DC Voltage Ranges . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-10

Table 1-2. Jumper Descriptions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-16

Table 1-3. Interrupt Assignments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-17

Table 1-4. DREQ Line Assignments. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-18

Table 1-5. Technical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-19

Table 3-1. POST Beep Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1

Table 3-2. System Error Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3

Table A-1. Key Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-2

Table A-2. Main Menu Categories. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-4

Table A-3. Boot Options Submenu Categories . . . . . . . . . . . . . . . . . . . . . . . A-5

Table A-4. Advanced Menu Categories. . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-7

Table A-5. Security Menu Categories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-9

Table A-6. Exit Menu Categories. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-11

viii

ix

R

ead This First

A prerequisite for using this manual to service Dell computer systems is a
basic knowledge of IBM®-compatible PCs and prior training in IBM-

compatible PC troubleshooting techniques. In addition to information pro­vided in this manual and the
provides the
cedures and instructions on using the Dell diagnostics to test the computer
system.

W

arnings, Cautions, and Notes

Throughout this manual, there may be blocks of text printed in bold type or in italic
type. These blocks are warnings, cautions, and notes, and they are used as follows:

WARNING: A WARNING indicates the pote ntial for bodi ly har m and pr ovide s
instructions for how to avoid the problem.

CAUTION: A CAUTION indicates either pot entia l damage t o hardware or loss
of data and provides instructions for how to avoid the problem.

Diagnostics and T roubleshooting Guide

User’s Guide

that came with the system, Del l

for troubleshooting pro-

NOTE: A NOTE provides helpful information about using the computer system.

x

Chapter 1

System Overview

he Dell

T

ual are high-speed, upgradable, server systems, which use the Intel® Pentium®
Pro family of microprocessors. PowerEdge 2100 systems incorporate the high­performance peripheral component interconnect (PCI) local bus as well as the
extended industry-standard architecture (EISA) expansion bus. These buses are
built into the system board, which also integrates a Pentium Pro microprocessor and all
other elements of the basic computer sy stem.

The microprocessor module is installed in a zero insertion force (ZIF) socket on
the system board. This allows upgrading of the system board to a faster, more
powerful microprocessor when one becomes available. Contact Dell for infor­mation about Dell-supported microprocessor upgrades.

The Pentium Pro microprocessor contains a built-in clock multiplier circuit,
which increases the internal operating frequency to a multiple of the system
clock frequency. The microprocessors for each of these systems and their oper­ating frequencies are as follows:

Dell PowerEdge 2100/180 system — 180 MHz derived from a system clock

•

frequency of 60 MHz
Dell PowerEdge 2100/200 system — 200 MHz derived from a system clock

•

frequency of 66 MHz

®

PowerEdge® 2100/180 and 2100/200 systems, covered in this man-

System Overview 1-1

S

ystem Features

In addition to the standard features found in a traditional personal computer,
Dell PowerEdge 2100 systems include the following new and/or advanced
features:

256 KB of cache memory internal to the Pentium Pro module

•

16 MB of 72-bit wide, buffered, extended-data output (EDO)-type main

•

memory, upgradable to 256 MB
Memory error correction code (ECC) feature is built into the memory con-

•

troller on the system board
Advanced combination EISA and PCI expansion subsystem

•

Three EISA and three PCI expansion-card slots (none of the expansion-card

•

slots are shared)
Integrated VGA-compatible video subsystem attached to the PCI bus with

•

1 MB video memory standard
BIOS in upgradable flash memory attached to the EISA bus

•

Integrated super I/O controller attached to the EISA bus, provides a

•

bidirectional parallel port, two serial ports, and the diskette drive interface
Integrated ultra (fast-20) wide small computer system interface (SCSI)

•

controller
Integrated server management circuitry that monitors operation of the sys-

•

tem cooling fan for running or not, as well as critical system voltages and
temperatures

3.5-inch diskette drive and a CD-ROM drive standard in externally accessi-

•

ble drive bays
Recessed power and reset buttons to prevent accidental system interruptions

•

New quick-test feature in the diskette-based diagnostics (for more informa-

•

tion about
Chapter 2.)

All of these features, except the new quick-test feature, are briefly described in
this chapter. For a c om ple te list of system features, see “Technical Specifications”
found later in this chapter.

QUICK TEST

, see “Running the Diskette-Based Diagnostics” in

1-2 Dell PowerEdge 2100/180 and 2100/200 Systems Service Manual

When following the text in this manual, assume that the location or direction
relative to the computer is as shown in Figure 1-1.

back of computer

left side

front of computer

Figure 1-1. Computer Orientation

3.5-inch diskette drive

diskette-drive access
indicator

CD-ROM drive

CD-ROM–drive access
indicator (BUSY)

third drive bay

right side

power button

power indicator

hard-disk-drive
access indicator

reset button

Figure 1-2. Front-Bezel Features

CAUTION: To avoid possible data or file structure corruptions, the
front-bezel reset button should be used only when the system cannot be
rebooted by pressing

<CTRL><ALT><DEL>

. Before you use the reset
button to initiate a hardware reset, close any open application program
and any files if possible.

System Overview 1-3

Figure 1-3. Front/Right Side Internal View

system power supply

diskette controller
cable

system board
mounting plate

diskette drive

power cables

system cooling
fan

control panel
cable

SCSI cable

CD-ROM drive

internal hard-disk
drive cage

third drive bay

control panel
assembly

1-4 Dell PowerEdge 2100/180 and 2100/200 Systems Service Manual

voltage selection switch

AC power input connector

I/O panel
connectors

externally-accessible
drive bays (3)

SCSI hard-disk
drive cage

SCSI cable

hard-disk-drive
power cables

system board

Figure 1-4. Back/L eft Side Internal View

System Overview 1-5

System Memory

System memory has a minimum of 16 MB of 72-bit wide, buffered, EDO-type
memory . The system memory capacity can be expanded up to 256 MB by using
combinations of 16-, 32-, and 128-MB buffered, EDO-type dual in-line memory
modules (DIMMs).

The system board has four, 168-pin DIMM sockets. The DIMMs can be mixed.
The socket population rules are as follows:

Populate the DIMM sockets in order from DIMM_A (lower) to DIMM_D

•

(upper).
The DIMMs should be rated at 60 nanoseconds (ns) or faster. All of the sys-

•

tem memory operates at the speed of the slowest DIMM installed.
The largest capacity DIMM should be in socket DIMM_A with the smaller

•

capacity DIMMs installed in decreasing sizes toward socket DIMM_D.

The 72-bit wide, buffered, EDO DIMMs support the ECC feature that detects
memory errors and corrects single-bit memory errors. The ECC feature pro­vides more reliable memory and less downtime. The ECC feature is built into
the memory controller on the system board.

See “DIMMs” in Chapter 4 for information on removing and replacing DIMMs.

Advanced Expansion Subsystem

The computer system offers advanced expansion subsystems that can support a
mixture of traditional EISA expansion cards, Plug and Play ISA expansion cards,
and PCI expansion cards. The EISA Configuration Utility included with the system
provides a means of avoiding resource conf licts that might arise from such an
arrangement.

After all legacy cards have been configured with the EISA Configuration Utility,
the system automatically assigns any required memory space, IRQ lines, and
DMA channels to any installed Plug and Play ISA expansion cards and PCI
expansion cards the next time the system is rebooted. Chapter 5, “Using the
EISA Configuration Utility,” in the User’s Guide describes the EISA Configura-
tion Utility and provides instructions for using it to configure the system.

The six expansion-card slots include three EISA expansion-card connectors and
three PCI expansion-card connectors. The expansion-card connectors are
located on the system board (see Figure 1-11).

Integrated Server Management

The system board contains integrated server management circuitry that moni­tors whether the system cooling fan is running, as well as critical system
voltages and temperatures. The integrated server management circuitry works
in conjunction with the Intel LANDesk® Server Management suite.

1-6 Dell PowerEdge 2100/180 and 2100/200 Systems Service Manual

Video Controller

The video subsystem is built into the system board a nd consists of a high-speed,
high-resolution VGA-compatible video subsystem. The video controller is con­nected to the PCI local bus. The standard video subsystem contains 1 MB of
video memory (the video memory size is not upgradable).

Maximum noninterlaced resolutions are 640 x 480 pixels with 16.7 million col­ors or 800 x 600 pixels with 65,536 colors.

Maximum interlaced resolution is 1024 x 768 pixels with 256 colors.

Integrated SCSI Contro lle r

A single-integrated SCSI controller provides an ultra (fast-20) wide, SCSI inter­face through a 68-pin connector on the system board. The integrated SCSI
controller attaches to the PCI bus to provide a high-performance SCSI bus.

The integrated SCSI controller provides control for the three SCSI hard-disk
drives in the SCSI hard-disk drive cage, the CD-ROM drive in the middle
externally-accessible drive bay and a SCSI drive installed in the lower
externally-accessible drive bay.

SCSI Hard-Disk Drives

A SCSI hard-disk drive cage is located under the externally-accessible drive bays at
the front of the computer (see Figure 1-4). The SCSI hard-drive cag e can contain up
to three, 1.6-inch-high, SCSI hard-disk drives (either fast/wide or ultra [fast-20]
wide). These SCSI hard-disk drives mount vertically . The SCSI hard-disk drive bays
are populated from left to right (facing the front of the computer), so that the SCSI
terminator jumper is accessible on the leftmost drive installed (last drive on the SCSI
channel).

NOTE: The externally-accessible drive bays at the front of the computer are
normally used for diskette drives, CD-ROM drives, and/or tape drives. Hard­disk drives should be installed in the SCSI hard-disk drive cage. For detailed
information about installing externally-accessible drives, see Chapter 8, “Installing
Drives in the External Bays,” in the User’s Guide. For detailed information about
installing SCSI hard-disk drives, see Chapter 9, “Installing Drives in the Internal
Bays,” in the User’s Guide.

SCSI Configuration Guidelines

Although SCSI devices are installed essentially the same way as other devices,
their configuration requirements are different. To configure your SCSI sub­system, follow the general guidelines offered in the following subsections.

System Overview 1-7

SCSI ID Numbers

Each device attached to the SCSI host adapter must have a unique SCSI ID
number from 0 to 15. See Chapter 9, “Installing Drives in the Internal Bays” in
the User’s Guide for additional SCSI addressing information.

NOTE: Any narrow SCSI devices installed in the external drive bays will
require SCSI ID numbers less than 7.

When SCSI devices are shipped from Dell, the default SCSI ID numbers are
assigned as follows:

The computer’s built-in SCSI controller is configured through the BIOS as

•

SCSI ID 7 (the default ID number for a host adapter) if the system includes
a CD-ROM or tape drive.

NOTE: If only wide SCSI hard-disk drives ar e connected to the built-in SCSI
controller (no CD-ROM or tape drives), it may be configured as SCSI ID

15.

A SCSI CD-ROM drive (installed in an externally-accessible drive bay) is

•

configured as SCSI ID 5.
A SCSI tape drive (if installed) is configured as SCSI ID 6.

•

The drive you intend to use as your boot device should be configu red as SCSI

•

ID 0. You can configure any additional hard-disk drives to any of the still­available SCSI ID numbers.

If Dell installs additional SCSI hard-disk drives in the system, they will be

•

configured as SCSI ID 1 and SCSI ID 2.

NOTE: There is no requirement that SCSI ID numbers be assigned sequentially or
that devices be attached to the cable in or der by ID number.

Device Termination

Before installing SCSI devices, you must configure the termination on the
device(s) and for the built-in SCSI controller according to the guidelines listed
in the following text.

SCSI logic requires that termination be enabled for the two devices at opposite
ends of the SCSI chain and disabled for all devices in between. To that end,
regardless of whether you are installing internal or external devices, use the fol­lowing guidelines:

The built-in SCSI controller has active termination — no action is required.

•

When the SCSI hard-disk drives are installed by Dell, termination is set to

•

enabled on the SCSI hard-disk drive installed in the left bay of the SCSI
hard-disk drive cage. Termination should be disabled on any other drives
installed in the SCSI hard-disk drive cage. Figure 1-5 shows some examples
of SCSI termination jumpers.

1-8 Dell PowerEdge 2100/180 and 2100/200 Systems Service Manual

If you install an optional SCSI controller card to control the CD-ROM drive

•

and any other SCSI device in the externally-accessible drive bays, you must
enable termination for the SCSI controller card and the SCSI device at the
end of the SCSI interface cable (preferably the CD-ROM drive). See the
documentation that came with your SCSI controller card for instructions.
Figure 1-5 shows an example of a SCSI termination jumper on a CD-ROM
drive.

NOTE: When you install or remove a termination jumper, do not move or
remove any other jumpers installed on the drives.

termination jumper

example CD-ROM drive

termination jumper

example hard-disk drive (back view)

example hard-disk drive (bottom view)

termination jumper

jumpered unjumpered

Figure 1-5. SCSI Termination Jumper Examples

System Overview 1-9

System Unit

The following subsections provide service-related information about the
computer.

System Power Supply

The 230-W system power supply can operate from an AC power source of
115 VAC at 60 Hz or 230 VAC at 50 Hz. The system power supply provides the
DC operating voltages and currents listed in Table 1-1.

NOTE: The power supply produces DC voltages only under its loaded condi­tion. Therefore, when you measure these voltages, the DC power connectors
must be connected to their corresponding pow er input connectors on the s ystem
board or drives.

.

Table 1-1. DC Voltage Ranges

Voltage Range

Maximum Output
Current

1

+3.3 VDC +3.15 to +3.45 VDC 14.0 A
+5 VDC +4.75 to +5.25 VDC 29.0 A
+12 VDC +11.40 to +12.60 VDC

6.0 A

2

–12 VDC –10.80 to –13.20 VDC 0.3 A
–5 VDC –4.50 to –5.50 VDC 0.3 A
+5 VFP

1

Maximum continuous DC output power shall not exceed 230 W. Maximum combined load on

2
3

VFP (volts flea power) — sometimes called “standby power.”

3

+5 VDC and +3.3 VDC shall not exc eed 170 W.
The total power of all voltages other than +12 VDC must not exceed 158 W.

+4.75 to +5.25 VDC 10 mA

Pin Assignments for the DC Power Connectors

The power-supply output voltages can be measured at the back (wire side) of
the connectors without disconnecting them. Figures 1-6, 1-7, and 1-8 show the
wire side of the connectors.

1-10 Dell PowerEdge 2100/180 and 2100/200 Systems Service Manual

–5 VDC (white)

common (black)

common (black)
common (black)

1

PSON#

(grey)

11

12 13 14 15 16 17 18 19 20

+5 VDC (red)

+5 VDC (red)
+5 VDC (red)

not used (brown)

+5 VDC (red)

P1

234 5678 910

1

+5 VDC (red)

common (black)

+5 VDC (red)

common (black)

PWRGOOD

1

Pin 11 — PSON# should measure between +4 and +5 VDC except when the power button on the front

2

(orange)

panel is pressed, taking PSON# to its active-low state.

2

Pin 5 — PWRGOOD should measure between +4 and +5 VDC when the power supply is on and oper-

ating to indicate that all power-supply output voltages are within ranges specified in Table 1-1.

common (black)
common (black)

–12 VDC (blue)
+12 VDC (yellow)
+5 VFP (purple)

Figure 1-6. DC Power Connector P1

P2, P3, P5, P6

1234

+5 VDC (red)
common (black)
common (black)
+12 VDC (yellow)

P4

1234

+12 VDC (yellow)
common (black)
common (black)
+5 VDC (red)

Figure 1-7. DC Power Connectors P2, P3, P4, P5, and P6

System Overview 1-11

Figure 1-8. DC Power Connectors P7

1234

+3.3 VDC (blue/white)

common (black)
common (black)

5

P7

6

+3.3 VDC (blue/white)
+3.3 VDC (blue/white)

common (black)

P7

P6

P5

P4

P3

P2

P1

DC Power Distribution

Figures 1-9 and 1-10 provide the following information about DC power
distribution:

Power-supply connector identification

•

Power cable connections for diskette, tape, CD-ROM, and hard-disk drives

•

Power distribution to sockets and connectors on the system board

•

Figure 1-9. DC Power Cables

1-12 Dell PowerEdge 2100/180 and 2100/200 Systems Service Manual

keyboard
controller

system board

+3 VDC

system

power supply

optional

drive

CD-ROM

drive

3.5-inch

diskette drive

internal

hard-disk drive

internal

hard-disk drive

P1

POWER

PWRGOOD

PSON#

PSON#
+5 VFP +5 VFP
+5 VDC
–5 VDC
+12 VDC
–12 VDC

P7

+5 VDC

–5 VDC

+12 VDC

–12 VDC

POWER3V

+3.3 VDC

main memor y

P2

sockets

DIMM_D

P3

P4

DIMM_C

DIMM_B

DIMM_A

P5

MICROPROCESSOR

P6

+3.3 VDC

power

management

logic

RTC/

NVRAM

processor core

core VCC (+2.1 to +3.5 VDC)

battery

regulator

+3.3 VDC

+5 VDC
+12 VDC
–12 VDC

+5 VDC
–5 VDC
+12 VDC
–12 VDC

battery (+3 VDC)

+3.3 VDC

+5 VFP

PWRGOOD

+12 VDC

+5 VFP

+5 VDC
+5 VDC

fuse

+5 VDC

+5 VDC

PCI4
through
PCI6

EISA1
through
EISA3

SRV_MGT

FAN

PANEL

SPKR

KYBD

MOUSE

internal

Y-cable

hard-disk drive

Figure 1-10. DC Power Distribution

System Overview 1-13

System Board Layout

keyboard (bottom) and
mouse (top) connec­tors (KYBD / MOUSE)

video connector
(JVGA)

parallel port connector
(PARALLEL)

serial port 1 (bottom)
and serial port 2 (top)
connectors (SERIAL)

diskette/tape drive interface
connector (FLOPPY)

control-panel connector
(PANEL)

battery socket
(BATTERY)

top of the computer

microprocessor socket

EISA connectors (EISA1
[lower], EISA2, and EISA3)

fan connector (FAN)

power connector (POWER)

3-volt power connector
(POWER3V)

auxiliary fan connector
(AUXFAN)

DIMM connectors (DIMM_A
[lower], DIMM_B, DIMM_C,
and DIMM_D)

PCI connectors (PCI4
[lower], PCI5, and
PCI6)

server management
connector (SRV_MGT)

integrated SCSI port
connector (SCSI)

The subsections that follow provide service-related information about the sys­tem board components.

Figure 1-11. System Board Components

1-14 Dell PowerEdge 2100/180 and 2100/200 Systems Service Manual

System Board Jumper

200 MHZ
180 MHZ

PASSWD
EISA
VGA
CARDBIOS

jumpered

unjumpered

Figure 1-12. System Board Jumpers

System Overview 1-15

Table 1-2. Jumper Descriptions

Jumper Description Settings

200MHZ Microprocessor speed Installed if the micro-

processor’s internal speed is
200 MHz, otherwise, not
installed.

180MHZ Microprocessor speed Installed if the micro-

processor’s internal speed is
180 MHz, otherwise, not
installed.

PASSWD Password enable/disable Jumper installed to activate

boot password feature.

EISA Clear EISA configuration

settings

Install the jumper and boot
the system to clear the con­figuration settings.

Remove the jumper and use
the EISA Configuration Util­ity to configure the system.

VGA Integrated VGA controller

enable/disable

Install to enable the inte­grated VGA controller.

CARDBIOS Used for trouble shooting Install the jumper to boot

system from BIOS expan­sion card.

Remove the jumper to allow
normal boot operation from
BIOS.

1-16 Dell PowerEdge 2100/180 and 2100/200 Systems Service Manual

Interrupt Assignments

Table 1-3. Interrupt Assignments

IRQ Line Used By/Available

IRQ0 Generated by system timer.
IRQ1 Generated by keyboard controller to indicate that keyboard’s out-

put buffer is full.

IRQ2 Generated internally by interrupt controller to enable IRQ8

through IRQ15.

IRQ3
and
IRQ4

Generated by super I/O controller to indicate that device con­nected to corresponding serial port requires service (IRQ3 for
COM2 or COM4; IRQ4 for COM1 or COM3).

IRQ5 Available for use by expansion card unless this IRQ line is used

by secondary parallel port.

IRQ6 Generated by super I/O controller to indicate that diskette or tape

drive requires service.

IRQ7 Generated by super I/O controller to indicate that device con-

nected to parallel port requires service.
IRQ8 Generated by keyboard controller for each tick of RTC.
IRQ9 Available for use by expansion card.
IRQ10 Available for use by expansion card.
IRQ11 Available for use by expansion card.
IRQ12 Generated by keyboard controller to indi cate that mouse’s output

buffer is full.
IRQ13 Generated by math coprocessor to indicate coprocessor error.
IRQ14 Available for use.
IRQ15 Available for use.

System Overview 1-17

DMA Channel Assignments

Table 1-4. DREQ Line Assignments

DREQ Line Used By/Available

DREQ0 Available
DREQ1 Available
DREQ2 Generated by super I/O controller to initiate DMA cycle for

attached diskette drive
DREQ3 Available
DREQ4 Generated by bus controller chip to activate second DMA con-

troller
DREQ5 Available
DREQ6 Available
DREQ7 Available

1-18 Dell PowerEdge 2100/180 and 2100/200 Systems Service Manual

T

echnical Specifications

Table 1-5. Technical Specifications

Microprocessor

Microprocessor type . . . Intel Pentium Pro microprocessor
Microprocessor speed . . 200 or 180 MHz

Internal cache . . . . . . . . 256 KB

Math coprocessor . . . . . internal to the microprocessor

System Information

System chip set . . . . . . . Intel 440FX controller chip set

Data bus width . . . . . . . 64 bits

Address bus width. . . . . 32 bits

Expansion Bus

Bus types. . . . . . . . . . . . PCI and EISA

Bus speed . . . . . . . . . . . PCI: 30 MHz with the 180 MHz microprocessor;

33 MHz with the 200 MHz microprocessor
EISA: 7.5 MHz with the 180 MHz microprocessor;

8.33 MHz with the 200 MHz microprocessor

PCI expansion-card

connectors. . . . . . . . . . . three (no shared expansion-card slots)

EISA expansion-card

connectors. . . . . . . . . . . three (no shared expansion-card slots)

System Clocks

System clock. . . . . . . . . 60 or 66 MHz (matches external processor speed)

Diskette/communica-

tions ports . . . . . . . . . . . 24 MHz from the system clock

Memory

Architecture . . . . . . . . . 72-bit (64 data bits plus 8 parity bits), noninter-

leaved, buffered, EDO-type memory

DIMM sockets . . . . . . . four 168-pin sockets

DIMM capacities . . . . . 16, 32, a nd 128 MB (D IMM s a re 60 ns o r f as te r, ED O)

Standard RAM . . . . . . . 16 MB

Maximum RAM . . . . . . 256 MB

BIOS address . . . . . . . . F000:0000h–F000:FFFFh

System Overview 1-19

Table 1-5. Technical Specifications

Integrated SCSI Controller

(Continued)

Type . . . . . . . . . . . . . . . Adaptec AIC-7880 ultra wide SCSI controller with

integrated 68-pin SCSI connector on the system
board

Drives

Externally accessible

bays. . . . . . . . . . . . . . . . one 5.25-inch bay (upper bay) dedicated to a

3.5-inch diskette drive; one 5.25-inch bay (middle
bay) containing a CD-ROM drive; one 5.25-inch
bay (lower bay) for a tape drive or CD-ROM drive

Internally accessible

bays. . . . . . . . . . . . . . . . three hard-disk drive bays for SCSI hard-disk

drives up to 1.6-inch-high

Ports

Externally accessible:

Serial (DTE). . . . . . two 9-pin connectors; 16550-compatible

Parallel . . . . . . . . . . one 25-hole connector (bidirectional)

Video . . . . . . . . . . . one 15-hole connector (VGA compatible)

PS/2-style key-

board. . . . . . . . . . . . 6-pin mini-DIN

PS/2-compatible

mouse . . . . . . . . . . . 6-pin mini-DIN

Internally accessible:

SCSI controller. . . . one 68-pin ultra (fast-20) wide connector

Diskette drive . . . . . 34-pin connector

Controls and Indicators

Reset control. . . . . . . . . push button

Power control . . . . . . . . push button

Power indicator. . . . . . . green LED

Diskette-drive access

indicator . . . . . . . . . . . . green LED

Hard-disk drive access

indicator . . . . . . . . . . . . green LED

CD-ROM drive access

indicator . . . . . . . . . . . . green LED

1-20 Dell PowerEdge 2100/180 and 2100/200 Systems Service Manual

Table 1-5. Technical Specifications

Video

(Continued)

Video type. . . . . . . . . . . ATI mach64 (264VT) PCI video controller with

integrated VGA connector
Video memory

(standard) . . . . . . . . . . . 1 MB (not upgradable)

Power

DC power supply:

Wattage . . . . . . . . . . 230 W

Voltage . . . . . . . . . . 90 to 135 V at 60 Hz;

180 to 265 V at 50 Hz

Backup battery . . . . . . . 3.0-V CR2032 lithium coin cell

Physical

Height . . . . . . . . . . . . . . 44.45 cm (17.5 inches)

Width. . . . . . . . . . . . . . . 24.13 cm (9.5 inches)

Depth. . . . . . . . . . . . . . . 41.91 cm (16.5 inches)

Weight (maximum). . . . 17.68 kg (39.0 lb)

Environmental

Temperature:

Operating . . . . . . . . 10° to 35°C (50° to 95°F)

Storage . . . . . . . . . . -40° to 65°C (-40° to 149°F)

Relative humidity . . 8% to 80% (noncondensing)

Maximum vibration:

Operating . . . . . . . . 0.25 G at 3 to 200 Hz for 30 min

Storage . . . . . . . . . . 0.5 G at 3 to 200 Hz for 30 min

Maximum shock:

Operating . . . . . . . . half-sine wave form: 50 G for 2 ms

Storage . . . . . . . . . . half-sine wave form: 110 G for 2 ms;

square wave form: 27 g for 15 ms
Altitude:

Operating . . . . . . . . -16 to 3048 m (-50 to 10,000 ft)

Storage . . . . . . . . . . -16 to 10,600 m (-50 to 35,000 ft)

z

System Overview 1-21

1-22 Dell PowerEdge 2100/180 and 2100/200 Systems Service Manual

Chapter 2

Basic Troubleshooting

his chapter describes basic troubleshooting procedures that can help you

T

diagnose a computer system problem. These procedures can often reveal the
source of a problem or indicate the correct starting point for troubleshooting the
system. A brief explanation of how to load and start the diskette-based diagnos­tics is located at the end of the chapter. Dell recommends that you perform the
following procedures in the order they are presented in this manual.

I

nitial User Contact

When you first contact a user who has a problem, ask the user to describe the
problem and the conditions under which it occurs. A verbal description can
often indicate the cause of a problem or indicate the appropriate troubleshooting
procedure to use. After the user describes the problem, follow these steps:

1. Ask the user to back up any data on the hard-disk drive if the system’s condition permits.

Appendix C, “Maintaining the System,” in the User’s Guide provides infor-
mation about backing up data.

2. Ask the user to try to duplicate the problem by r epeating the operations
he or she was performing at the time the problem occurred.

Can the user duplicate the problem?

.

Proceed to step 3.

Yes

.

Proceed to the next section, “External Visual Inspection.”

No

3. Observe the user to determine if he or she is making an error, such as
typing an incorrect key combination or entering a command
incorrectly.

Is the problem a result of user error?

.

Instruct the user in the proper procedure, or direct him or her to the

Yes

appropriate user documentation for the correct procedure.

.

Proceed to the next section, “External Visual Inspection.”

No

Basic Troubleshooting 2-1

E

xternal Visual Inspection

The external visual inspection is a quick inspection of the exterior of the system
unit, the monitor, the keyboard, any peripherals, and cables. While performing
the visual inspection, make any necessary corrections. To perform the external
visual inspection, follow these steps:

1. Turn off the system unit, the monitor, and all peripherals.

2. Verify that all power cables are properly connected to the system unit,
the monitor and peripherals, and their power sources.

3. Verify that the keyboard and mouse interface cables are firmly
attached to the proper connectors on the back of the system unit.

For a PS/2-compatible mouse, the keyboard and mouse interface cable con­nectors are identical except for their labels. If needed, see “System
Features” in Chapter 1.

For a serial mouse, the mouse interface cable must be firmly attached to one
of the serial port connectors, and its captive screws must be secure enough
to ensure a firm connection.

4. If present, verify that any network cables are attached properly.

5. Verify that any devices attached to the serial and parallel port connec­tors are properly connected.

Each of the serial and parallel interface cables must be firmly attached to an
appropriate connector on the back of the system unit as well as to the inter­face connector on the device. The captive screws that secure these
connectors at each end of the interface cable must be secure enough to
ensure a firm connection.

6. Verify that the video interface cable is firmly attached to the connector
on the back panel or to a video expansion card and to the connector on
the back of the monitor.

For proper connection of the video monitor, see the documentation for the
monitor.

7. Inspect all external monitor controls for any obvious damage or improper settings.

For proper settings of the video monitor controls, see the documentation for
the monitor.

8. Inspect the keyboard to ensure that no keys are sticking.

If one or more keys are sticking, it may be necessary to replace the
keyboard.

2-2 Dell PowerEdge 2100/180 and 2100/200 Systems Service Manual

9. Inspect the exterior of the system unit, including all controls and indica­tors, and all user-accessible data storage devices for any signs of
physical damage.

Does the inspection reveal any problems?

.

Proceed to the appropriate procedure in Chapter 4, “Removing and

Yes

Replacing Parts.”

.

Proceed to the next section, “Observing the Boot Routine.”

No

O

bserving the Boot Routine

After you have performed an external visual inspection as described in the pre­vious section, you should boot the system and, while the boot routine is
running, observe the system for any indications of problems.

NOTE: Most of the steps in this procedure require observation of system func­tions and indications, some of which can occur simultaneously. It may be
necessary to reboot the system several times in order to complete all of these
steps.

To observe problem indications during the boot routine, follow these steps:

1. Insert the diagnostics diskette into drive A. Turn on all peripherals and
the system unit. If the system unit is already on, press the reset button
or <

CTRL><ALT><DEL

2. Check the power supply fan.

Does the fan run normally?

Proceed to step 3.

Yes.

Troubleshoot the system power supply.

No.

3. Watch the Num Lock, Caps Lock, and Scroll Lock indicators on the
upper-right corner of the keyboard. After all three indicators flash
momentarily, the Num Lock indicator should light up and remain on.

Do these indicators flash on and off within approximately ten seconds after
the boot routine starts?

Proceed to step 4.

Yes.

Troubleshoot the system power supply. If the troubleshooting procedure

No.

indicates that the system power supply is operational, troubleshoot the
memory.

> to reboot the system.

Basic Troubleshooting 2-3

4. During the boot routine, observe the system for any of the following:

Diskette-drive and hard-disk drive access indicators: These indicators

•

light up in response to data being transferred to or from the drives. If
either of these indicators fails to light up during the boot routine, trou­bleshoot the diskette drive or hard-disk drive subsystem, as appropriate.

System error messages: These messages can indicate problems or pro-

•

vide status information. If a system error message is displayed, see
Table 3-2.

Beep codes: A beep code is a series of beeps that indicates an error con-

•

dition. If the system emits a beep code, see Table 3-1.

NOTE: The system beeps once during the boot ro utine. This single beep is

normal and is not a beep code.

5. Observe the monitor screen for the Diagnostics Menu.

Does the Diagnostics Menu appear?

See “Running the Diskette-Based Diagnostics” found later in this

Yes.

chapter.

Proceed to step 6.

No.

6. Insert another copy of the diagnostics diskette into the diskette drive, and reboot the system.

Does the Diagnostics Menu appear?

See “Running the Diskette-Based Diagnostics” found later in this

Yes.

chapter.

Proceed to the next section, “Internal Visual Inspection.”

No.

I

nternal Visual Inspection

CAUTION: Before you proceed with the internal visual inspection descri bed i n
this sectio n, ensure that the user has s aved all open files and ex ited all open
application programs if possible.

A simple visual inspection of a system unit’s interior hardware can often lead to the
source of a problem, such as a loose expansion card, cable conn ector, or mou nting screw .
When you perform the visual inspection, refer to “Sy stem Features” in Chapter 1 to locate
components in the inspection procedure.

To perform the internal visual inspection, follow these steps:

1. Turn off the system, including any attached peripherals, and disconnect
all the AC power cables from their power sources.

2. Remove the system unit cover.

2-4 Dell PowerEdge 2100/180 and 2100/200 Systems Service Manual

3. Verify that the microprocessor, DIMMs, and expansion cards, are fully
seated in their sockets or connectors.

WARNING: The microprocessor can get extremely hot. Be sure the chip
has had sufficient time to cool before you touch it.

While reseating the microprocessor, wear a wrist grounding strap or main­tain contact with a metal surface on the chassis.

To reseat the microprocessor, remove it from its socket and reinstall it as
described in “Microprocessor/Heat Sink Assembly” in Chapter 4.

To reseat a DIMM, remove it from its socket and reinstall it as described in
“DIMMs” in Chapter 4.

If you need to reseat an expansion card, use a
the screw that secures the card-mounting bracket. Grasp the card by its top
corners, and carefully pull it out of its connector. Reinsert the card in its
connector, and carefully push it in until it is fully seated. Then reinstall the
card-mounting bracket’s retaining screw.

4. Verify that all jumpers are set correctly.

For information about these jumpers, see “System Board Jumpers” in Chap­ter 1.

5. Check all cable connectors inside the system unit to verify that they are
firmly attached to their appropriate connectors.

6. Reinstall the system unit cover.

7. Reconnect the system unit and any attached peripherals to their power sources, and turn them on.

Does the problem appear to be resolved?

No further steps are necessary. Terminate the procedure.

Yes.

Proceed to the next sections, “Eliminating Resource Conflicts,” “Run-

No.

ning the Diskette-Based Diagnostics,” and to “Getting Help.”

-inch nut driver to remove

1/4

E

liminating Resource Conflicts

Devices within the system unit may require dedicated memory spaces, interrupt
levels, or DMA channels, all of which must be allocated during installation of
the devices. Because a device may be installed at a different time, it is possible
that the same resource is assigned to two or more devices.

Resource conflicts can result in disorderly or erratic system operation or system
failure. If you suspect that resource conflicts might exist, check the system and
reassign the resources as necessary.

For additional information, see Chapter 5, “Using the EISA Configuration Util­ity” in the User’s Guide.

Basic Troubleshooting 2-5

R

unning the Diskette-Based Diagnostics

The diskette-based diagnostics (included with the system) contain tests that aid
in troubleshooting all major components of the computer system.

CAUTION : To prevent dam age to th e orig inal diag nostics disket te, alway s use
a backup copy of the diagnostics diske tte when servicing a user’s system. Dell recom­mends that users make several copies of this diskette to ensure that one is always
available.

To start the diagnostics, turn off the system unit, insert a diagnostics diskette
into drive A, and then turn on the system unit.

Starting the diagnostics causes the Dell logo screen to appear on the monitor
screen, followed by a message indicating that the diagnostics is loading. Before
the diagnostics loads, a program tests the portion of main memory (RAM)
required for loading the diagnostics. If a main memory error is detected, a mes­sage appears on the screen telling you which DIMM has failed.

If no errors are found in main memory, the diagnostics loads and the Diagnos­tics Menu appears. This menu lets you choose the following options or exit to
the Microsoft

®

MS-DOS® prompt:

RUN QUICK TESTS

•

locate a failure or to indicate where further testing is needed to isolate a
failure

RUN ALL TESTS

•

RUN SPECIFIC TESTS

•

G

etting Help

If none of the troubleshooting procedures in this chapter or the tests in the dis­kette-based diagnostics reveals the source of the problem or leads to the proper
troubleshooting steps for determining the source of the problem, call Dell for
technical assistance. For instructions, see the chapter titled “Getting Help” in
the Diagnostics a nd T r ou bleshooti ng Guide .

— Runs selected tests from all test groups to quickly

— Runs all tests for a thorough test of the system

— Tests a particular area or subsystem

2-6 Dell PowerEdge 2100/180 and 2100/200 Systems Service Manual

Chapter 3

Beep Codes and Error Messages

his chapter describes beep codes and system error messages that can occur

T

during POST or, in the case of some failures, during normal system operation.
The tables in this chapter list faults that can cause a beep code or system error
message to occur and the probable causes of the fault in each case.

If a faulty system does not emit beep codes or display syste m error message s to
indicate a failure, you should use the diskette-based diagnostics to run the
appropriate tests to help isolate the source of the problem. See “Running the
Diskette-Based Diagnostics” in Chapter 2.

P

OST Beep Codes

If the monitor cannot display error messages during the POST, the system may
emit a series of beeps that identifies the problem or that can help you identify a
faulty component or assembly . Table 3-1 lists the beep codes that may be gener­ated during the POST. Most beep codes indicate a fatal error that prevents the
system from completing the boot routine until the indicated condition is
corrected.

When the system emits a beep code, record the code and then find it in
Table 3-1. If the table does not lead to the source of the problem, run the appro­priate tests in the diskette-based diagnostics to assist in troubleshooting the
problem.

Table 3-1. POST Beep Codes

Beep Code Error Probable Causes

1-2 Invalid Expansion-

card-ROM checksum

1-2-2-3 Invalid BIOS ROM

checksum

1-3-1-1 DRAM refresh failure Defective DIMMs or sys-

Improperly seated expan­sion card or the system
needs rebooted.

Corrupted BIOS firmware
or defective system board.

tem board. Reseat the
DIMMs or replace the sys­tem board.

Beep Codes and Error Messages 3-1

Table 3-1. POST Beep Codes

Beep Code Error Probable Causes

(Continued)

1-3-1-3 Keyboard controller

error

Defective DIMMs or sys­tem board. Reseat the
DIMMs or replace the sys­tem board.

1-3-3-1 No DIMM memory

installed

Defective DIMMs or sys­tem board. Reseat the
DIMMs or replace the sys­tem board.

1-3-4-1 DRAM failure Defective DIMMs or sys-

tem board. Reseat the
DIMMs or replace the sys­tem board.

1-3-4-3 DRAM failure Defective DIMMs or sys-

tem board. Reseat the
DIMMs or replace the sys­tem board.

1-4-1-1 DRAM failure Defective DIMMs or sys-

tem board. Reseat the
DIMMs or replace the sys-

tem board.
1-4-2-1 CMOS failure Defective system board.
1-4-3-1 Memory controller or

DIMM failure

Defective DIMMs or sys-

tem board. Reseat the

DIMMs or replace the sys-

tem board.
2-1-2-3 Invalid ROM copy-

Defective system board.

right notice

2-2-3-1 Unexpected interrupt Improperly seated expan-

sion card or the system

needs rebooted.
3-2-2-1 Gate A20 failure Defective system board.
4-2-4-3 Keyboard controller

error

Defective DIMMs or sys-

tem board. Reseat the

DIMMs or replace the sys-

tem board.
4-2-4-4 Gate A20 failure Defective system board.

3-2 Dell PowerEdge 2100/180 and 2100/200 Systems Service Manual

S

ystem Error Messages

Table 3-2 lists (in alphabetical order) system error messages that can appear on
the monitor screen. These messages can help you find the source of a problem.
Some of these error messages indicate fatal errors. When a fatal error occurs,
the system cannot usually be rebooted until an appropriate hardware change has
been made.

Table 3-2. System Error Messages

Message Definition Probable Causes

System bat­tery is dead

- Replace
and run
Setup

System CMOS
checksum
bad - Run
Setup

Incorrect
drive A type

- Run Setup

Incorrect
drive B type

- Run Setup

Keyboard
error

The system battery
is dead.

The configuration
data is corrupted.

The diskette drive
does not match the
diskette drive type
stored in the config­uration data.

The diskette drive
does not match the
diskette drive type
stored in the config­uration data.

A cable may be
loose, or the key­board may be faulty.

Replace the battery
and run the System
Setup program.

Run the System Setup
program to restore your
system configuration.

Run the System Setup
program to restore your
system configuration.

Run the System Setup
program to restore your
system configuration.

Defective keyboard,
keyboard cable, or
system board.

Stuck key

System/
Shadow RAM
failed at
offset:

A cable may be
loose, or the key­board may be faulty.

One or more
DIMMs may be
improperly seated or
faulty.

Defective keyboard or
keyboard cable.

Reseat the DIMMs or
replace the DIMMs.

Beep Codes and Error Messages 3-3

Table 3-2. System Error Messages

Message Definition Probable Causes

(Continued)

Operating
system not
found

System
cache error

- Cache dis­abled

System
timer error

Real-time
clock error

Keyboard
controller
error

The system did not
find a bootable oper­ating system.

The microprocessor
chip malfunctioned.

A chip on the sys­tem board malfunc­tioned.

The real-time clock
on the system board
malfunctioned.

A cable may be
loose, the keyboard
may be faulty , or the
keyboard controller
is defective.

Use a diskette with a
bootable operating
system on it in drive
A, or load a bootable
operating system
from the hard-disk
drive.

Defective micro­processor or system
board.

Defective micro­processor or system
board.

Defective micro­processor or system
board.

Defective keyboard,
keyboard cable, or
system board.

EISA con­figuration
NVRAM bad

EISA con­figuration
error

Invalid CPU
speed
detected ­Check jump­ers

Memory size
limit
exceeded

The EISA jumper
may have been acci­dentally installed.

The EISA configu­ration data in
NVRAM does not
match the installed
EISA expansion
cards.

The microprocessor
speed jumper plug
may be absent or
installed on the
wrong jumper pins.

The size of installed
DIMM memory is
greater than
256 MB.

Be sure the EISA
jumper is removed;
then reboot the sys­tem, and restore the
EISA configuration.

Be sure the EISA
expansion cards are
properly seated; then
run the EISA configu­ration utility.

Check the micro­processor speed
jumpers.

Verify that the total
installed DIMM
memory does not
exceed 256 MB.

3-4 Dell PowerEdge 2100/180 and 2100/200 Systems Service Manual

Table 3-2. System Error Messages

Message Definition Probable Causes

(Continued)

Resource
conflict

Warning:
IRQ not ini­tialized

Expansion
ROM not
initialized

System con­figuration
data write
error

The BIOS de tected a
resource conflict
while configuring a
Plug and Play ISA
or PCI expansion
card.

The BIOS de tected a
resource conflict
while configuring a
Plug and Play ISA
or PCI expansion
card.

The BIOS de tected a
resource conflict
while configuring a
Plug and Play ISA
or PCI expansion
card.

The system board
may be malfunction­ing.

See “Eliminating
Resource Conflicts”
in Chapter 2.

See “Eliminating
Resource Conflicts”
in Chapter 2.

See “Eliminating
Resource Conflicts”
in Chapter 2.

Defective system
board.

System mem­ory size has
changed ­Run Config­uration
Utility

A DIMM was added
or removed. The
DIMMs are improp­erly seated.

Reseat the DIMMs or
replace the DIMMs.

Beep Codes and Error Messages 3-5

3-6 Dell PowerEdge 2100/180 and 2100/200 Systems Service Manual

Chapter 4

Removing and Replacing Parts

his chapter provides procedures for removing the components, assemblies,

T

and subassemblies in the computer. Unless otherwise noted, each procedure
assumes the following:

You have performed the steps in “Precautionary Measures” found later in

•

this chapter.
You have removed the computer cover.

•

You can replace or reinstall a part by performing the removal procedure in

•

reverse order unless additional information is provided.

R

ecommended Tools

Most of the procedures in this chapter require the use of one or more of the fol­lowing tools:

Small flat-blade screwdriver

•

Wide flat-blade screwdriver

•

Number 1 and number 2 Phillips-head screwdrivers

•

•

•

Also, use a wrist grounding strap as explained in the next section, “Precaution­ary Measures.”

-inch nutdriver

1/4

Tweezers or long-nose pliers

Removing and Replacing Parts 4-1

P

recautionary Measures

Before you perform any of the procedures in this chapter, take a few moments
to read the following warning for your personal safety and to prevent damage to
the computer from ESD.

WARNING FOR YOUR PERSONAL SAFETY AND PROTECTION
OF THE EQUIPMENT: Before you start to work on the computer, per­form the following steps in the sequence listed.

1. Turn off the computer and any attached peripherals.

2. Disconnect the computer and any attached peripherals from their

power sources to reduce the potential for personal injury.

3. Disconnect any communications cables.

4. Wear a wrist grounding strap, and clip it to an unpainted metal sur-

face, such as the system power supply’s fan guard, on the computer
chassis.

If a wrist grounding strap is not available, touch the fan guard or
some other unpainted metal sur face on the back of the computer to
discharge any static charge from your body.

4-2 Dell PowerEdge 2100/180 and 2100/200 Systems Service Manual

C

omputer Cover

cover-mounting
screws (4)

handle

Figure 4-1. Computer Cover Removal

To remove the computer cover, follow these steps:

1. Remove the four cover-mounting screws at the back of the computer.

2. Slide the cover backward about one inch, then grasp the front of the
cover and the handle at the back of the cover and lift the cover straight
up off the chassis.

Removing and Replacing Parts 4-3

F

alignment holes (5)

retaining clips (6)

retaining holes (6)

alignment pins (5)

ront Bezel

Figure 4-2. Front Bezel Removal

To remove the front bezel, follow these steps:

1. Remove the computer cover.

2. Pry the front bezel loose with your finger tips and remove it from the chassis.

As you pry the front bezel loose, pry at different points around the bezel to
keep the opening between the front bezel and the computer chassis equal on
all sides to prevent damage to the bezel alignment pins.

4-4 Dell PowerEdge 2100/180 and 2100/200 Systems Service Manual

F

ront-Bezel Inserts

latch

tab

front-bezel insert

Figure 4-3. Front-Bezel Insert Removal

To remove a front-bezel insert, follow these steps:

1. Remove the front bezel.

2. With the inside of the front bezel facing you; grasp the front bezel with
both hands and place your fingers on the outside of the front-bezel
insert.

3. Push on the outside of the front-bezel insert (indicated by the two
arrows); then twist the sides of the front bezel outward until the front­bezel insert is released.

To replace a front-bezel insert, position one end of the insert in place under its
latch; then press the other end into place until the tab snaps under the latch.

Removing and Replacing Parts 4-5

C

control panel assembly

screw

chassis tabs (2)

right side of computer

top of computer

ontrol Panel Assembly

Figure 4-4. Control-Panel Assembly Removal

To remove the control panel assembly, follow these steps:

1. Disconnect the control-panel assembly cable from the PANEL connec­tor on the system board (see Figure 4-12).

The PANEL connector is near the top of the system board on the right side
of the computer chassis.

2. Remove the screw holding the control panel assembly to the front of the computer chassis.

3. Lift the control panel assembly out of the two chassis tabs.

4. Remove the control-panel-assembly cable from the hole in the chassis.

4-6 Dell PowerEdge 2100/180 and 2100/200 Systems Service Manual

D

rives

Figure 4-5 shows an example of drive hardware that can be installed in the com­puter. Refer to this figure when you perform any of the procedures in the
following subsections.

diskette drive interface cable

diskette drive interface
connector (FLOPPY)

SCSI connector
(SCSI)

DC power cables

SCSI interface cable

3.5-inch diskette drive

CD-ROM drive

lower
externally
accessible
drive bay
(optional drive)

SCSI hard-disk drives

Figure 4-5. Drive Hardware

Removing and Replacing Parts 4-7

Externally Accessible Drives

drive-release tab (2)

3.5-inch diskette
drive in top bay

CD-ROM drive in
middle bay

lower-bay drive
position for optional
drive

Figure 4-6. Externally Accessible Drives Removal

All of the externally accessible drives have drive-mounting rails. The 3.5-inch
drives also have drive-mounting extensions between the drive and the drive­mounting rails. To remove a drive assembly from one of the externally­accessible drive bays, follow these steps:

1. Disconnect the DC power cable and the interface cable from the back of the drive.

Be sure to record the power connector number and interface cable connector
identification.

2. Press inward (toward center of drive) on the two drive-release tabs, and
slide the drive out of the bay.

3. Remove the drive-mounting rails and drive-mounting extensions (if
present) from the drive (see Figure 4-7).

4-8 Dell PowerEdge 2100/180 and 2100/200 Systems Service Manual

4. If the drive is a SCSI drive, record the setting of the SCSI address
jumpers and SCSI bus termination jumper.

5. If present, remove the 50-pin to 68-pin adapter from the SCSI connec­tor on the back of the drive.

Some drives use a 50-pin to 68-pin adapter between the SCSI cable and the
drive connector. Check the back of the drive for an adapter, if present,
remove it and retain it for use on the new drive.

drive-mounting rails (2)

drive-release
tabs

50- to 68-pin
adapter

drive-mounting
extensions

Figure 4-7. Drive-Mounting Rails and Extensions Removal

When you reinstall a SCSI drive, set the SCSI address jumpers and the SCSI
bus termination jumpers to the settings you recorded.

Removing and Replacing Parts 4-9

Hard-Disk Drives

hard-disk drive bracket

left alignment tab

alignment rails

mounting screws (4)

hard-disk drive

hard-disk-drive
mounting screws (4)

right alignment tab
(on outside of bracket)

Figure 4-8. Hard-Disk Dri ve Removal

The hard-disk drives are mounted inside a hard-disk drive bracket. The hard­disk drive bracket must be removed before a hard-disk drive can be removed.
To remove a hard-disk drive, follow these steps:

1. Lay the computer on its right side.

2. Disconnect the DC power cable and the SCSI interface cable from the
back of each hard-disk drive installed in the hard-disk drive bracket.

3. Remove the four mounting screws that attach the hard-disk drive
bracket to the front of the computer chassis.

4. Slide the hard-disk drive bracket toward the back of the computer until
the alignment tabs disengage from the alignment rails; then lift it out of
the computer.

5. Remove the four hard-disk drive mounting screws from the hard-disk
drive; then slide the drive out of the bracket.

6. Record the setting of the SCSI address jumpers and SCSI bus termina­tion jumper.

When you reinstall a hard-disk drive, set the SCSI address jumpers and the
SCSI bus termination jumper to the settings you recorded. Be sure you position
the hard-disk drive against the side and back tabs inside the hard-disk drive
bracket (the mounting holes in the hard-disk drive bracket align with the screw
holes in the hard-disk drive).

4-10 Dell PowerEdge 2100/180 and 2100/200 Systems Service Manual

E

xpansion Cards

expansion-card
retaining screw

expansion card

Figure 4-9. Expansion Card Removal

card-guide slots
(inside front of
computer)

1. Lay the computer on its right side.

2. Disconnect any cables attached to the expansion card you want to remove.

Be sure to record the location of each cable before you disconnect it.

3. Remove the expansion-card retaining screw.

4. Grasp the expansion card by its corners, and carefully remove it from
the expansion-card connector.

Removing and Replacing Parts 4-11

S

AC power connector

power supply

power-supply
mounting screws (4)

ystem Power Supply

Figure 4-10. Power Supply Removal

To remove the system power supply, follow these steps:

1. Disconnect the AC power cable from the AC power connector on the back of the power supply.

2. Disconnect the DC power cables from the system board (see
Figure 4-12), the externally accessible drives, and the hard-disk drives
(see Figure 4-5).

Be sure to record the connector number and plug location for each power
cable.

3. Remove the four power-supply mounting screws.

4. Slide the power supply forward about an inch to clear the retaining
tabs, then lift it out of the computer.

When you reinstall the power supply, be sure the slots on the bottom of the
power supply engage the retaining tabs on the computer chassis.

4-12 Dell PowerEdge 2100/180 and 2100/200 Systems Service Manual

S

ystem Cooling Fan

system cooling-fan
mounting push­fasteners (4)

system cooling fan

system cooling-fan
connector (FAN)

push-fastener removed

plunger barrel

new push-fastener

back wall of chassis

push-fastener installed

plunger

system cooling fan

Figure 4-11. System Cooling-Fan Removal

To remove the system cooling fan, follow these steps:

1. Lay the computer on its right side.

2. Disconnect the system cooling-fan cable from the FAN connector on the
system board (see Figure 4-12).

3. To loosen the system cooling fan from the chassis:

a. Push the plunger of each of the four push-fasteners toward the back of

the chassis, using a small flat-blade screwdriver (or another small flat
object).

b. From the outside-back of the chassis, pull the plungers completely out

of the push-fasteners.

4. Remove the system cooling fan and the push-fastener barrels from the chassis.

To replace the system cooling fan, use four new push-fasteners. (New push-fas­teners have the plunger inserted part-way into the barrel.) Align the mounting
holes in the system cooling fan with the holes in back wall of the chassis. Insert
each push-fastener completely; then push in on the plunger to lock the fastener.

Removing and Replacing Parts 4-13

S

video connector (JVGA)

parallel port connector
(PARALLEL)

serial port 1 (bottom)
and serial port 2 (top)
connectors (SERIAL)

keyboard (bottom) and
mouse (top) connectors
(KYBD/MOUSE)

diskette/tape drive interface
connector (FLOPPY)

control-panel connector
(PANEL)

battery connector
(BATTERY)

top of the computer

microprocessor socket

EISA connectors
(EISA1 [lower],EISA2,
and EISA3)

fan connector (FAN)

power connector (POWER)

3-volt power connector
(POWER3V)

auxiliary fan connector
(AUXFAN)

DIMM connectors (DIMM_A
[lower], DIMM_B, DIMM_C,
and DIMM_D)

PCI connectors (PCI4
[lower], PCI5, and
PCI6)

server management
connector (SRV_MGT)

integrated SCSI port
connector (SCSI)

ystem Board Components

The subsections that follow contain procedures for removing system board
components.

Figure 4-12. System Board Components

4-14 Dell PowerEdge 2100/180 and 2100/200 Systems Service Manual

DIMMs

DIMM

2.

1.

securing clip (2)

Figure 4-13. DIMM Removal

To remove a DIMM, push outward on the DIMM sock et’s securing clips until the
DIMM is released from its socket. Then lift the DIMM away from the socket.

DIMM

securing clip (2)

2.

1.

Figure 4-14. DIMM Installation

To replace a DIMM, press outward on the securing clips at each end of the
socket until they snap open. Orient the DIMM to the socket, and pre ss down on
the outer edges of the DIMM with your thumbs while pulling up on the securing
clips until they lock around the ends of the DIMM.

Removing and Replacing Parts 4-15

Microprocessor/Heat Sink Assembly

microprocessor
securing clip hooks
over tabs on socket
(front and back)

microprocessor

heat sink

socket release
lever

microprocessor
socket

Figure 4-15. Microprocessor Securing Clip Removal

To remove the microprocessor/heat sink assembly, follow these steps:

1. Remove the system board assembly.

2. Lay the system board assembly on a flat surface.

3. Remove the microprocessor securing clip from the micropr ocessor/heat sink assembly.

WARNING: The microprocessor can get extremely hot during sys­tem operations. Be sure it has had sufficient time to cool before
touching it.

Press down on the folded part of the clip with a sm all s crewdriver to release
the clip.

4. Push outward and then upward on the release lever to rotate the lever
to its fully vertical position.

5. Lift the microprocessor/heat sink assembly out of its socket (see Figure 4-16).

4-16 Dell PowerEdge 2100/180 and 2100/200 Systems Service Manual

microprocessor
socket

microprocessor
securing clip

heat sink

thermal interface pad
(attached to the heat sink)

microprocessor

pin-1 corner of
socket

front tab

Figure 4-16. Microprocessor/Heat Sink Assembly

The heat sink and microprocessor are separate. Look at the bottom side of the
heat sink and peel the thermal-pad protective cover off before attaching the heat
sink to the microprocessor.

To install the replacement microprocessor/heat sink assembly, ensure that the micro­processor release lever is in its fully vertical position to allow the microprocessor pins
to easily slip into the socket. When the microprocessor/heat sink assembly is in p lace,
rotate the microprocessor release lever to its horizontal position.

NOTE: Pin 1 on the microprocessor is located on the corner with the largest
bevel. The pin-1 hole in the microprocessor socket is located on the corner
where the holes are in a diagonal pattern.

Hook the microprocessor securing clip over the socket tab nearest the front of
the system board, and then snap it over the tab on the back of the socket.

Removing and Replacing Parts 4-17

System Battery

BATTERY socket

battery

Figure 4-17. System Battery Removal

WARNING: There is a danger of the new battery exploding if it is in­correctly installed. Replac e the batte ry only wit h the same or e quivale nt
type recommended by the m anufacturer. Discard used batteries accord­ing to the manufacturer’s instructions.

To remove the system battery, follow these steps:

1. If possible, enter the System Setup program, and make a printed copy
of the System Setup screens (see Appendix A).

2. Lay the computer on its right side.

3. Remove any expansion cards installed in the PCI expansion-card slots.

Be sure to record the location of any cables attached to the PCI cards being
removed.

4. Remove the battery.

Carefully pry the battery out of its socket with your fingers or with a blunt,
nonconducting object, such as a plastic screwdriver.

To replace the system battery, orient the new battery with the “+” facing up.
Insert the battery into its socket and snap it into place. Compare the system con­figuration information with the copy of the system configuration settings you made
in step 1. Restore any system configuration information lost while replacing the battery.

4-18 Dell PowerEdge 2100/180 and 2100/200 Systems Service Manual

S

ystem Board Assembly

system board assembly

system-board-assembly
mounting screws (4)

system board cables

Figure 4-18. System Board Assembly Removal

To remove the system board assembly, follow these steps:

1. Disconnect all cables from their connectors at the back of the computer.

Be sure to record where each cable is attached.

2. Remove all of the expansion cards.

3. Lay the computer on its left side.

4. Remove the four system-board-assembly mounting screws.

5. Remove the system board assembly from the chassis as follows:

a. Slide the system board assembly about a half-inch toward the front of

the system (to free the connectors at the back of the system board).

b. Raise the top of the system board assembly up enough to allow access to

the system board cables.

c. Disconnect the power cables, the control panel cable, the diskette drive

interface cable, system cooling-fan cable, and the SCSI interface cable.

6. Lift the system board assembly away from the computer chassis.

Removing and Replacing Parts 4-19

System Board

system-board
mounting screw

system-board
mounting clips (10)

front of com puter

Figure 4-19. System Board Removal

To remove the system board, follow these steps:

1. Remove the system board assembly.

2. Lay the system board assembly on a flat worksurface.

3. Remove the system-board mounting screw.

4. Slide the system board toward the front of the computer to disengage
the system-board mounting clips.

5. Lift the system board out of the system-board mounting bracket.

If you are replacing the system board, remove the DIMMs and the micro­processor from the old system board and install them on the replacement board.

4-20 Dell PowerEdge 2100/180 and 2100/200 Systems Service Manual

®

Printed in the U.S.A.

P/N 82502