DELL 2500 User Manual

 

  

  

  

  

 

  

  

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 computer. 

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 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. 

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. 

system's jumpers. 

 lists the function of these jumpers.