Dell PowerEdge 350 User Manual download pdf

support.dell.com Jumpers and Connectors A-1

APPENDIX A

Jumpers and Connectors

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 and switches provide a convenient and reversible way of reconfiguring the

circuitry on a printed circuit board. When installing replacement parts or reconfiguring

the system, you may need to change jumper settings on the system board. You may

also need to change jumper and/or switch 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. Jumper

NOTICE: Make sure the system is powered off before you change a jumper

setting. Otherwise, damage to the system or unpredictable results may

occur.

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.

1 2 3 4

Summary of Contents

Page 1 - Jumpers and Connectors

support.dell.com Jumpers and Connectors A-1APPENDIX AJumpers and ConnectorsThis section provides specific information about the jumpers on the system

Page 2 - System Board Jumpers

A-2 Installation and Troubleshooting GuideFigure A-2 shows the location and default settings of the jumper blocks on the system board. See Table A-1 f

Page 3 - System Board Connectors

support.dell.com Jumpers and Connectors A-3System Board ConnectorsTable A-2 lists the connectors and sockets located on the system board.Disabling a F

Page 4

A-4 Installation and Troubleshooting Guide3. Locate the password jumper (labeled PASSWORD CLEAR) on the system board (see Figure A-2).4. Place a jumpe