Acer Aspire M3420 - Checking Jumper Settings

102 Chapter 5
Checking Jumper Settings
The following illustration shows the location of the motherboard jumpers. Pin 1 is labeled.
Jumper Settings
Jumper
Type Description
Setting (default)
CLR_CMOS
3-pin CLEAR CMOS
1-2: NORMAL
2-3: CLEAR
Before clearing the CMOS, make
sure to turn the system off.