Advantech DVMB-554E User Manual

Page of 94
 
22
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 (J3) 
The DVMB-554E 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 setting. 
 
Table 1.3: CMOS (J3) 
 
Function 
Jumper Setting 
 
* Keep CMOS data 
 
1-2 closed 
 
 
Clear CMOS data 
 
2-3 closed 
 
* default setting