System board jumpers, Figure 4, Jumper plug – Dell OptiPlex GX1 User Manual
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Inside Your Computer: Dell OptiPlex GX1 Small-Form-Factor System User's Guide
file:///C|/infodev/2013/eDoc/OpGX1/UG/inside.htm[2/21/2013 11:47:19 AM]
15 Audio line-out connector
16 Microphone jack
17 Optional integrated NIC connector
18 Telephony connector
19 Video connector
20 CD-in connector
21 Microprocessor fan connector
22 Serial port 2 connector
23 USB connectors (2)
24 Mouse/keyboard connector (stacked)
25 Parallel/serial port 1 connector (stacked)
System Board Jumpers
Figure 4 shows the layout of jumpers on the system board.
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.
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
Description
PSWD
(default)
Password features are enabled.