Dell PowerEdge 2450 - Manual (Page 130)

A-2 Dell PowerEdge 2450 Systems Installation and Troubleshooting Guide
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-1 shows the location and default settings of the jumper blocks on the system
board. See Table A-1 for the designations, default settings, and functions of the sys-
tem's jumpers.
Switches control various circuits or functions in the computer system. The switches
that you are most likely to encounter are dual in-line package (DIP) switches, which
are normally packaged in groups of two or more switches in a plastic case. Two com-
mon types of DIP switches are slide switches and rocker switches (see the following
illustration).
Each of these switches has two positions, or settings (usually on and off). To change
the setting of a slide switch, use a small, pointed object such as a small screwdriver or
a straightened paper clip to slide the switch to the proper position. To change the set-
ting of a rocker switch, use the screwdriver or paper clip to press down on the
appropriate side of the switch. In either case, do not use a pen, pencil, or other object
that might leave a residue on the switch.
Figure A-1 shows the location of the configuration jumpers on the system board.
Table A-1 lists the function of these jumpers.
1 Rocker switch
2 Slide switch