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Dell szerver PowerEdge 1650

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Dell™PowerEdge™1650SystemsInstallationandTroubleshootingGuide
Introduction
Indicators, Messages, and Codes
Finding Software Solutions
Running the System Diagnostics
TroubleshootingYourSystem
Installing System Board Options
Installing Drives
Getting Help
Jumpers and Connectors
Abbreviations and Acronyms
Notes, Notices, and Cautions
Information in this document is subject to change without notice.
©2001DellComputerCorporation.Allrightsreserved.
Reproduction in any manner whatsoever without the written permission of Dell Computer Corporation is strictly forbidden.
Trademarks used in this text: Dell, the DELL logo, DellNet, Dell OpenManage, Dimension, Inspiron, Dell Precision, OptiPlex, Latitude, and PowerEdge are trademarks of Dell Computer
Corporation; Intel is a registered trademark 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 Computer Corporation
disclaims any proprietary interest in trademarks and trade names other than its own.
Initial release: 19 Nov 01
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
Jumpers and Connectors
Dell™PowerEdge™1650SystemsInstallationandTroubleshootingGuide
Jumpers—AGeneralExplanation
System Board Jumpers
System Board Connectors
SCSI Backplane Board Connectors
Disabling a Forgotten Password
This section provides specific information about the jumpers on the system board. It also provides some basic information on jumpers and switches and
describes the connectors and sockets on the various boards in the system.
Jumpers—AGeneralExplanation
Jumpers provide a convenient and reversible way of reconfiguring the circuitry on a printed circuit board. When reconfiguring the system, you may need to
change jumper settings on the system board. You may also need to change jumper settings on expansion cards or drives.
Jumpers
Jumpers are small blocks on a circuit board with two or more pins emerging from them. Plastic plugs containing a wire fit down over the pins. The wire connects
the pins and creates a circuit. To change a jumper setting, pull the plug off its pin(s) and carefully fit it down onto the pin(s) indicated. FigureA-1 shows an
example of a jumper.
Figure A- 1. Example Jumper
A jumper is referred to as open or unjumpered when the plug is pushed down over only one pin or if there is no plug at all. When the plug is pushed down
over two pins, the jumper is referred to as jumpered. The jumper setting is often shown in text as two numbers, such as 1-2. The number 1 is printed on the
circuit board so that you can identify each pin number based on the location of pin 1.
FigureA-2 -1 shows the location and default settings of the jumper blocks on the system board. See TableA for the designations, default settings, and
functions of the system's jumpers.
System Board Jumpers
FigureA-2 -1 shows the location of the configuration jumpers on the system board. TableA lists the jumpers.
Figure A- 2. System Board Jumpers
CAUTION: Make sure the system is turned off before you change a jumper setting. Otherwise, damage to the system or unpredictable results may
occur.
System Board Connectors
See Figure6-1 and Table6-1 for the location and description of system board connectors.
SCSI Backplane Board Connectors
FigureA-3 shows the location of the connectors on the top of the SCSI backplane board.
Figure A- 3. Connectors on the SCSI Backplane Board
Disabling a Forgotten Password
The system's software security features include a system password and a setup password, which are discussed in detail in "Using the System Setup Program"
in the User's Guide. A password jumper on the system board enables these password features or disables them and clears any password(s) currently in use.
To disable a forgotten system password or setup password, perform the following steps.
1. Open the system doors (see "Opening the System Doors" in "Troubleshooting Your System").
2. Refer to FigureA-2 for the location of the password jumper (labeled "PASSWD") on the system board.
3. Remove the jumper plug from the PASSWD jumper.
4. Replace the system cover, and then reconnect the system to an electrical outlet and turn it on.
The existing passwords are not disabled (erased) until the system boots with the PASSWD jumper plug removed. However, before you assign a new
system and/or setup password, you must install the jumper plug.
5. Repeat step 1.
Table A- -1. System BoardJumperSettings
Jumper
Description
PASSWD
(default)
The password feature is enabled.
The password feature is disabled.
NVRAM_CLR
(default)
The configuration settings are retained at system boot.
The configuration settings are cleared at next system boot. (If the configuration settings become corrupted to the point
where the system will not boot, install the jumper plug and boot the system. Remove the jumper before restoring the
configuration information.)
RSVD
Reserved (do not change).
jumpered unjumpered
NOTE: For the full name of an abbreviation or acronym used in this table, see "Abbreviations and Acronyms."
CAUTION: See "Protecting Against Electrostatic Discharge" in the Safety Instructions in your System Information document.
NOTE: If you assign a new system and/or setup password with the jumper plug still removed, the system disables the new password(s) the next
time it boots.

Termékspecifikációk

Márka: Dell
Kategória: szerver
Modell: PowerEdge 1650

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