Chapter 4 Installation
53
4.3 Jumper Settings
NOTE:
A jumper is a metal bridge used to close an
electrical circuit. It consists of two or three
metal pins and a small metal clip (often
protected by a plastic cover) that slides
over the pins to connect them. To
CLOSE/SHORT a jumper means
connecting the pins of the jumper with the
plastic clip and to OPEN a jumper means
removing the plastic clip from a jumper.
The hardware jumpers must be set before installation. Jumpers are shown in
Table 4-1
.
Description
Label
Type
AT/ATX power select
JATX_AT1
2-pin header
Clear CMOS jumper
J_CMOS1
3-pin header
Wake-on LAN
WOL_SEL1
3-pin header
Table 4-1: Jumpers
4.3.1
AT/ATX Power Select Jumper
Jumper Label:
JATX_AT1
Jumper Type:
2-pin header
Jumper Settings:
See
Table 4-2
Jumper Location:
See
Figure 4-7
The AT/ATX Power Select jumper specifies the systems power mode as AT or
ATX.
Setting
Description
Closed
ATX power (Default)
Open
AT power
Table 4-2: AT/ATX Power Mode Jumper Settings