User`s manual

1.8 Jumper Settings

This section provides instructions on how to configure your motherboard

by setting the jumpers. It also includes the motherboards's default settings

and your options for each jumper.

1.8.1 How to set jumpers

You can configure your motherboard to match the needs of your applica-

tion by setting the jumpers. A jumper is a metal bridge that closes an elec-

trical circuit. It consists of two metal pins and a small metal clip (often

protected by a plastic cover) that slides over the pins to connect them. To

“close” (or turn ON) a jumper, you connect the pins with the clip. To

“open” (or turn OFF) a jumper, you remove the clip. Sometimes a jumper

consists of a set of three pins, labeled 1, 2, and 3. In this case you connect

either pins 1 and 2, or 2 and 3. A pair of needle-nose pliers may be useful

when setting jumpers.

1.8.2 CMOS clear (J1)

The AIMB-740-6CB1 motherboard contains a jumper that can erase

CMOS data and reset the system BIOS information. Normally this

jumper should be set with pins 1-2 closed. If you want to reset the CMOS

data, set J1 to 2-3 closed for just a few seconds, and then move the jumper

back to 1-2 closed. This procedure will reset the CMOS to its default set-

ting.

Table 1.3: CMOS (J1)

Function Jumper Setting

* Keep CMOS data

Clear CMOS data

* default setting

1-2 closed

2-3 closed