System Board Labels - Dell OptiPlex GX100 User Manual

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
Jumper Setting
PSWD (default)
jumpered unjumpered

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
Connector or Socket
AUX_LED
B1
DIMM_x
DSKT
ENET
FAN
IDEn
INTRUSION
KYBD
MICROPROCESSOR
MONITOR
MOUSE
PANEL
PARALLEL
POWER_1
POWER_2
RISER
SERIALn
USB
Rotating the Power Supply Away From the System Board (Mini Tower Chassis Only)
To access some components on the system board, you may have to rotate the mini tower chassis system power supply out of the way. To rotate
the power supply, perform the following steps.
CAUTION: Before you remove the computer cover, see
1. Remove the computer cover as instructed in
Description
System password features are enabled.
System password features are disabled.
Description
Auxiliary power indicator
Battery socket
Dual in-line memory module (DIMM) socket
Diskette/tape drive interface connector
Integrated network interface controller (NIC) connector
Microprocessor fan connector
EIDE interface connector
Chassis intrusion switch connector
Keyboard connector
Microprocessor connector
Video connector
Mouse connector
Control panel connector
Parallel port connector; sometimes referred to as LPT1
Main power input connector
3.3-volt (V) power input connector
Riser board connector
Serial port connectors
Universal Serial Bus (USB) connectors
"Removing and Replacing the Computer
"Safety First—For You and Your
Cover."
Computer."