Dell OptiPlex GX400 User's Guide download pdf (Page 43)

Jumpers

System Board Jumpers

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To change a jumper setting, pull the plug off its pin(s) and carefully fit it down onto the pin(s) indicated.

The following table lists the system board jumpers and their settings.

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L_IN

Line-in connector

L_OUT

Line-out/speaker connector

MIC

Microphone connector

MICROPROCESSOR

Microprocessor with heat sink

MSE

PS/2 mouse connector

NIC

Network adapter connector

PANEL

Control-panel connector

PAR

Parallel port connector

PCIn

PCI expansion-card connector

POWER

Computer power connector

PSWD

Password jumper

RIMM_n

RIMM socket

RTCRST

Real-time clock reset jumper

SER

Serial port connectors

SPKR

Internal speaker

STANDBY_LED

Standby power light

STR

Suspend-to-RAM light

TAPI

Telephony connector

USB

Port 2 USB connectors (2)

USB2

Port 1 USB connectors (2)

VRM

VRM connector

NOTICE: Ensure that your computer is turned off before you change a jumper setting. Otherwise, damage to your computer or unpredictable results may

occur.

System-BoardJumperSettings

Jumper

Setting

Description

PSWD

(default)

Password features are enabled.

Password features are disabled.

RTCRST

Real-time clock reset. Can be used for troubleshooting.

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jumpered

unjumpered

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Dell OptiPlex GX400 User's Guide Page 43

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