Dell OptiPlex GX110 - Manual (Page 63)

System Board Jumpers
Figure 10 shows the layout of jumpers on the system board. Table 1 lists the system board jumpers and their settings.
Figure 10. System Board 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.
NOTICE: Make sure your system is turned off and unplugged before you change a jumper setting. Otherwise, damage to your
system or unpredictable results may occur.
Table 1. System-Board Jumper Settings
System Board Labels
Table 2 lists the labels for light-emitting diode (LED) indicators, connectors, and sockets on the system board, and it gives a brief description of
their functions.
Table 2. System Board Indicators, Connectors, and Sockets
1 NIC connector
2 Video connector
3 Fan connector
4 Serial port 2 connector
5 USB connectors (2)
6 Keyboard (lower) and mouse (upper) connectors
7 Parallel port (upper) and serial port 1 (lower) connectors
8 Riser board connector
9 System board jumpers
10 EIDE1 connector
11 EIDE2 connector
12 Diskette/tape-drive connector
13 Battery
14 Auxiliary power indicator
15 Microprocessor
16 Control panel connector
17 3.3-V power connector
18 DC power connector
19 DIMM connectors (2)
Jumper Setting Description
PSWD (default) System password features are enabled.
System password features are disabled.
jumpered unjumpered