Technical information
V1.0 Vig644M Motherboard Manual 
18 
System Board Jumper Settings 
Do not move the jumper with the power on. Always turn off the power and unplug the 
power cord from the computer before changing a jumper setting. Otherwise, the board 
could be damaged. 
  Clear CMOS Jumper: JBAT1 
The configuration Jumper (JBAT1) allows the user to clear the CMOS. The CMOS RAM 
onboard  has a  power  supply from  an  external battery  to  keep the  data  of  the  system 
configuration. The CMOS RAM allows the system to automatically boot OS every time it 
is turned on. 
Figure 5: Clear CMOS jumper 










