Dell PowerEdge 800 Service Manual download pdf (Page 2)

Back to Contents Page  
 Jumpers, Switches, and Connectors  
Dell™PowerEdge™800SystemsInstallationandTroubleshootingGuide 
Jumpers—A General Explanation  
System Board Jumpers  
System Board Connectors  
SCSI Backplane Connectors  
Disabling a Forgotten Password  
 
This section provides specific information about the system jumpers. It also provides some basic information on jumpers and switches and describes the 
connectors 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 circuit boards 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withatrianglesothatyoucanidentifyeachpinnumberbasedonthelocationofpin1. 
FigureA-2 shows the location and default settings of the server-module jumper blocks. See TableA-1 for the designations, default settings, and functions of 
the jumpers. 
System Board Jumpers  
FigureA-2 shows the location of the configuration jumpers on the system board. TableA-1 lists the jumper settings.  
Figure A-2. System Board Jumpers 
 
NOTE: To access the jumpers, remove the memory cooling shroud by lifting the release latch and sliding the shroud toward the front of the system. See 
Figure6-1.
1 2 3 4 5 6 7 ... 86 87
Comments to this Manuals

No comments
Dell PowerEdge 800 Service Manual Page 2

Comments to this Manuals

Related products and manuals for Servers Dell PowerEdge 800
