Dell PowerEdge 1855 Leitfaden

Dell™PowerEdge™1855SystemsInstallationandTroubleshootingGuide

Introduction

Indicators, Codes, and Messages

Finding Software Solutions

Running System Diagnostics

Troubleshooting Your System

Installing System Options

Getting Help

DIP Switch Settings and Connectors

I/O Ports and Connectors

Notes, Notices, and Cautions

Abbreviations and Acronyms

For a complete list of abbreviations and acronyms, see the "Glossary" in the User's Guide.

Information in this document is subject to change without notice.

©2005DellInc.Allrightsreserved.

Reproduction in any manner whatsoever without the written permission of Dell Inc. is strictly forbidden.

Trademarks used in this text: Dell, the DELL logo, Inspiron, Dell Precision, Dimension, OptiPlex, Latitude, PowerEdge, PowerConnect,PowerVault, PowerApp, and Dell OpenManage are

trademarks of Dell Inc.; Intel, Pentium, and Celeron are registered trademarks of Intel Corporation; Microsoft and Windows are registered trademarks of Microsoft Corporation.

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 Inc. disclaims any

proprietary interest in trademarks and trade names other than its own.

Initial release: 20 August 2004

Last revised: 30 June 2005

NOTE: A NOTE indicates important information that helps you make better use of your computer.

NOTICE: A NOTICE indicates either potential damage to hardware or loss of data and tells you how to avoid the problem.

CAUTION: A CAUTION indicates a potential for property damage, personal injury, or death.

Back to Contents Page

DIP Switch Settings and Connectors

Dell™PowerEdge™1855SystemsInstallationandTroubleshootingGuide

DIP Switch Settings—AGeneralExplanation

Server Module Board DIP Switch

Server Module Board Connectors

Disabling a Forgotten Password

This section provides detailed information about the sever-module board DIP switch settings. It also provides some basic information on switches and

describes the connectors on the various boards in the system.

DIP Switch Settings—AGeneralExplanation

DIP switches provide a convenient and reversible way of reconfiguring the circuitry on a printed circuit board. When reconfiguring the system, you may need to

change DIP switch settings on circuit boards or drives.



DIP Switches

DIP switches are small blocks on a circuit board with one or more slide switches emerging from them. Each slide switch on the DIP switch is designated by a

number. To change a DIP switch setting, move the appropriate slide switch to either the "on" or "off" position. FigureA-1 shows an example of a DIP switch.

Figure A-1. Example DIP Switch

FigureA-2 shows the location and default settings of the sever-module board DIP switch. See TableA-1 for information about the DIP switch designations,

default settings, and functions.

Server Module Board DIP Switch



FigureA-2 shows the location of the configuration DIP switch on the server module board. TableA-1 lists the settings for the DIP switch.

Figure A-2. Server Module Board DIP Switch

CAUTION: Many repairs may only be done by a certified service technician. You should only perform troubleshooting and simple repairs as

authorized in your product documentation, or as directed by the online or telephone service and support team. Damage due to servicing that is not

authorized by Dell is not covered by your warranty. Read and follow the safety instructions that came with the product.

NOTE: FigureA-2 is oriented as viewed from the front of the server module.

Table A-1. Server-ModuleDIPSwitchSettings

Server Module Board Connectors

See FigureA-3 and TableA-2 for the location and description of server module board connectors.

Figure A-3. Server Module Board Connectors



DIP Switch



Setting



Description

PASSWD

(Switch 1)

(default)

The password feature is enabled when switch 1 is set to "on."

The password feature is disabled when switch 1 is set to "off."

NVRAM_CLR

(Switch 2)

(default)

The configuration settings in NVRAM are retained at system boot when switch 2 is set to "off."

The configuration settings in NVRAM are cleared at next system boot when switch 2 is set to "on."

"on" "off"

Table A-2. Server Module Board Connectors

Disabling a Forgotten Password

The server module's software security features include a system password and a setup password, which are discussed in detail in "Using the System Setup

Program" in your User's Guide. The password switch 1 on the configuration DIP switch enables these password features or disables them and clears any

password(s) currently in use.



1. Remove the server module. See "Removing a Server Module" in "Installing System Options."



2. Open the server module. See "Opening the Server Module" in "Installing System Options."



3. If a daughter card is installed on the server module board, remove the daughter card. See "Removing a Daughter Card" in "Installing System Options."



Connector



Description

BT1

System battery

CONn

Midplane connectors 1 and 2

PROC_n

Microprocessor sockets 1 and 2

DIMM n_X

Memory modules (6), where X is the channel and nis the bank

HDDn

SCSI hard drive connectors

J14

BMC recovery jumper



NOTE: Do not use the BMC recovery jumper unless instructed to do so by a Dell technical support representative.

J16

Front control panel connector

J19, J20

Daughter card connectors

PASSWD

password switch 1

NVRAM_CLR

clear NVRAM switch 2

CAUTION: Many repairs may only be done by a certified service technician. You should only perform troubleshooting and simple repairs as

authorized in your product documentation, or as directed by the online or telephone service and support team. Damage due to servicing that is not

authorized by Dell is not covered by your warranty. Read and follow the safety instructions that came with the product.

 

4. Use a small plastic scribe to move the password switch 1 to the "off" position. 
 
See FigureA-3 to locate the password switch 1 on the server module board. 

5. If you removed a daughter card from the server module board, reinstall it. See "Installing a Daughter Card" in "Installing System Options." 
 

6. Close the server module. See "Closing the Server Module" in "Installing System Options." 
 

7. Install the server module. See "Installing a Server Module" in "Installing System Options." 
 
When the server module is on, the power-on indicator is solid green. Allow the server module to finish booting. 
The existing passwords are not disabled (erased) until the system boots with the password switch 1 to the "off" position. However, before you assign a 
new system and/or setup password, you must move the password switch 1 to the "on" position. 

8. Remove the server module. See "Removing a Server Module" in "Installing System Options." 
 

9. Open the server module. See "Opening the Server Module" in "Installing System Options." 
 

10. If a daughter card is installed on the server module board, remove the daughter card. See "Removing a Daughter Card" in "Installing System Options." 
 

11. Use a small plastic scribe to move the password switch 1 to the "on" position. 
 
See FigureA-2 to locate the password switch 1 on the server module board. 

12. If you removed a daughter card from the server module board, reinstall it. See "Installing a Daughter Card" in "Installing System Options." 
 

13. Close the server module. See "Closing the Server Module" in "Installing System Options." 
 

14. Install the server module. See "Installing a Server Module" in "Installing System Options." 
 

15. Assign a new system and/or setup password. 
 
To assign a new passwords using the System Setup program, see your User's Guide. 
Back to Contents Page 

 
NOTE: If you assign a new system and/or setup password with the switch 1 still in to the "off" position, the system disables the new password(s) 
the next time it boots.

Back to Contents Page

I/O Ports and Connectors

Dell™PowerEdge™1855SystemsInstallationandTroubleshootingGuide

I/O Connectors

DRAC/MC Module

Keyboard/Video/Mouse (KVM) Switch Module Custom Cable

Front-Panel Keyboard/Video/Mouse (KVM) Module

PowerConnect 5316M Ethernet Switch Module

Gb Ethernet Pass-through Module

Fibre Channel Pass-through Module and Fiber Channel Switch Module

I/O Connectors

I/O connectors are the gateways that the system uses to communicate with external devices, such as a keyboard, mouse, or monitor. This section describes

the various connectors that, depending on your purchase, may be on your system. If you reconfigure the hardware connected to the system, you may also

need the pin number and signal information for these connectors.

TableB-1 shows the icons used to label the connectors on the system.

Table B-1. I/O Ports and Connectors Icons

DRAC/MC Module



Serial Connector

The DRAC/MC module serial connector uses a 9-pin D-subminiature connector. See the documentation for the DRAC/MC controller for information on using the

serial port for configuration.

FigureB-1 illustrates the pin numbers for the serial connector and TableB-2 defines the pin assignments for the connector.

Figure B-1. Serial Connector Pin Numbers

Table B-2.SerialConnectorPinAssignments



Icon



Ports and Connectors

Serial port

Mouse connector

Keyboard connector

Video connector

USB connector

10/100 Ethernet management port and 10/100/1000 Ethernet port

NOTE: Ensure that you use a null-modem cable between the DRAC/MC module serial connector and the attaching serial device.



Signal



I/O



Definition

DCD

Data carrier detect

SIN

Serial input

SOUT

Serial output

DTR

Data terminal ready



10/100 Management Port

The DRAC/MC module's 10/100 management port allows you to manage the server modules. FigureB-2 illustrates the pin numbers for the management port

and TableB-3 defines the pin assignments for the port.

Figure B-2. 10/100 Management Port

Table B-3.10/100ManagementPortPinAssignments

Keyboard/Video/Mouse (KVM) Switch Module Custom Cable



PS/2-Compatible Keyboard and Mouse Connectors

The PS/2-compatible keyboard and mouse cables attach to 6-pin, miniature DIN connectors on either the front-or back-panel custom cable. FigureB-3

illustrates the pin numbers for these connectors and TableB-4 defines the pin assignments for these connectors.

Figure B-3. Keyboard and Mouse Connector Pin Numbers

Table B-4.KeyboardandMouseConnectorPinAssignments



GND

N/A

Signal ground

DSR

Data set ready

RTS

Request to send

CTS

Clear to send

Ring indicator

Shell

N/A

Chassis ground



Signal



I/O



Definition

TD+

Data out (+)

TD–

Data out (–)

RD+

Data in (+)

N/A

No connection

N/A

No connection

RD–

Data in (–)

N/A

No connection

N/A

No connection



Signal



I/O



Definition

KBDATA or MFDATA

I/O

Keyboard data or mouse data

N/A

No connection

GND

N/A

Signal ground

FVcc

N/A

Fused supply voltage

KBCLK or MFCLK

I/O

Keyboard clock or mouse clock

N/A

No connection

Shell

N/A

Chassis ground



Video Connector

You can attach a VGA-compatible monitor to the server module's integrated video controller using a 15-pin high-density D-subminiature connector on either the

front-or back-panel custom cable. FigureB-4 illustrates the pin numbers for the video connector and TableB-5 defines the pin assignments for the connector.

Figure B-4. Video Connector Pin Numbers

Table B-5. Video Connector Pin Assignments

Front-Panel Keyboard/Video/Mouse (KVM) Module



USB Connector

The front-panel custom cable provides a USB connector that supports USB-compliant devices such as diskette drives and CD drives (supplied by Dell). FigureB-

5illustrates the pin numbers for the USB connector and TableB-6 defines the pin assignments for the connector.

Figure B-5. USB Connector Pin Numbers

Table B-6. USB Connector Pin Assignments



Video Connector

See "Video Connector" in "Back-Panel Keyboard/Video/Mouse (KVM) Module."

PowerConnect 5316M Ethernet Switch Module



Signal



I/O



Definition

RED

Red video

GREEN

Green video

BLUE

Blue video

N/A

No connection

5–8, 10

GND

N/A

Signal ground

VCC

N/A

Vcc

N/A

No connection

DDC data out

Monitor detect data

HSYNC

Horizontal synchronization

VSYNC

Vertical synchronization

N/A

No connection



Signal



I/O



Definition

Vcc

N/A

Supply voltage

DATA +

Data in

DATA –

Data out

GND

N/A

Signal ground



PowerConnect 5316M Ethernet Port

The system's PowerConnect 5316M Ethernet switch module's Ethernet ports provide fast uplink communications between servers and workstations. FigureB-6

illustrates the pin numbers for the ports and TableB-7 defines the pin assignments for the ports.

Figure B-6. PowerConnect 5316M Ethernet Port

Table B-7.PowerConnect5316MEthernetPortPinAssignments

Gb Ethernet Pass-through Module



Gb Ethernet Pass-through Ethernet Port

The system's Gb Ethernet pass-through module's Ethernet ports provide fast communications between servers and workstations. FigureB-7 illustrates the pin

numbers for the ports and TableB-8 defines the pin assignments for the ports.

Figure B-7. Gb Ethernet Pass-through Ethernet Port

Table B-8. Gb Ethernet Pass-throughEthernetPortPinAssignments



Ethernet Network Cable Requirements

The network switch module supports a UTP Ethernet cable equipped with a standard RJ45-compatible plug. Observe the following cabling restrictions.



Signal



I/O



Definition

TRDB+

Transmit/receive data B+

TRDB–

Transmit/receive data B–

TRDA+

Transmit/receive data A+

TRDD+

Transmit/receive data D+

TRDD–

Transmit/receive data D–

TRDA–

Transmit/receive data A–

TRDC+

Transmit/receive data C+

TRDC–

Transmit/receive data C–



Signal



I/O



Definition

TRDB+

Transmit/receive data B+

TRDB–

Transmit/receive data B–

TRDA+

Transmit/receive data A+

TRDD+

Transmit/receive data D+

TRDD–

Transmit/receive data D–

TRDA–

Transmit/receive data A–

TRDC+

Transmit/receive data C+

TRDC–

Transmit/receive data C–

lUse Category 5 or greater wiring and connectors.

lDo not exceed a cable run length (from a workstation to a hub) of 100 m (328 ft).

For detailed guidelines on operation of a network, see "Systems Considerations of Multi-Segment Networks" in the IEEE 802.3 standard.

Fibre Channel Pass-through Module and Fiber Channel Switch Module

The system's Fibre channel pass-through and switch module's Short Wave Small Form Factor Pluggable (SFP) ports provide fast communications between

servers and workstations. The ports do not contain pins and pin signals—they each contain an optical transceiver for the optical cable. See FigureB-8.

Figure B-8. Fibre Channel Pass-through Port (Typical)

Back to Contents Page



NOTICE: To avoid line interference, voice and data lines must be in separate sheaths.

NOTE: The cable used for the analog rack interface port is limited to 15.24 m (50 ft).

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