4-4 System Board
Jumper Settings
The following sections provide the names and locations of jumpers on the system board, and
provides instructions on changing a jumper setting.

Locating System Board Jumpers

The following figure shows the locations of the jumpers on the system board.

System Board Jumper Locations

A – CMOS Clear (JP4) F – BIOS Recovery (JP5)
B – Audio Modem Riser Select (JP11) G – USB Selection (JP28)
C – Rear USB Wakeup (JP3) H – USB Selection (JP27)
D – PS/2 Keyboard Power On (JP16) I – Front USB Device Wake Up (JP21)
E – Save to RAM (JP18)
The system board factory-set jumper settings are included in Section 2, “System Configuration.”
How to change a jumper setting is described in the next section.

Changing a Jumper Setting

Change a jumper setting on the system board as follows.
Jumpers are set correctly at the factory for the system configuration.
Only change the appropriate jumper setting for your application.
1. Power off and unplug the system and any peripherals.
The system power must be off before removing the cover and
changing a jumper setting.
2. Remove the system cover (see “System Covers” in Section 3).