Dell OptiPlex GX300 User Guide - Page 38

System Board Jumpers, System Board Labels

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27 Remote Wakeup power connector 28 Standby LED 29 Password jumper 30 Auxiliary hard-disk drive access indicator connector 31 RTCRST jumper 32 Battery socket System Board Jumpers Figure 4 shows the location of the jumpers on the system board. Table 1 lists the system board jumpers and their settings. Figure 4. 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. NOTICE: Make sure your system is turned off before you change a jumper setting. Otherwise, damage to your system or unpredictable results may occur. To change a jumper setting, pull the plug off its pin(s) and carefully fit it down onto the pin(s) indicated. Table 1. System-Board Jumper Settings Jumper PSWD Setting (default) Description Password features are enabled. RTCRST jumpered Password features are disabled. Real-time clock reset. Can be used for troubleshooting purposes. unjumpered System Board Labels Table 2 lists the labels for connectors and sockets on your system board, and it gives a brief description of their functions. Table 2. System Board Connectors and Sockets Connector or Socket AUX_LED BATT CD_IN RIMM_x DSKT ENET EXT_SPKR Description Hard-disk drive LED connector Battery socket CD-ROM audio interface connector RIMM socket Diskette/tape drive interface connector Integrated NIC connector External speaker connector

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System Board Jumpers
Figure 4 shows the location of the jumpers on the system board.
Table 1
lists the system board jumpers and their settings.
Figure 4. 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.
NOTICE: Make sure your system is turned off before you change a jumper setting. Otherwise, damage to your system or
unpredictable results may occur.
To change a jumper setting, pull the plug off its pin(s) and carefully fit it down onto the pin(s) indicated.
Table 1. System-Board Jumper Settings
System Board Labels
Table 2 lists the labels for connectors and sockets on your system board, and it gives a brief description of their functions.
Table 2. System Board Connectors and Sockets
27
Remote Wakeup power connector
28
Standby LED
29
Password jumper
30
Auxiliary hard-disk drive access indicator connector
31
RTCRST jumper
32
Battery socket
Jumper
Setting
Description
PSWD
(default)
Password features are enabled.
Password features are disabled.
RTCRST
Real-time clock reset. Can be used for
troubleshooting purposes
.
jumpered
unjumpered
Connector or Socket
Description
AUX_LED
Hard-disk drive LED connector
BATT
Battery socket
CD_IN
CD-ROM audio interface connector
RIMM_
x
RIMM socket
DSKT
Diskette/tape drive interface connector
ENET
Integrated NIC connector
EXT_SPKR
External speaker connector