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The pin headers on the motherboard are often associated with important functions. With the shunt (Jumper)
pushed down on the designated pins (the pin numbers are printed on the circuit board, surrounding the pin
header), certain feature can be enabled or disabled. While changing the jumpers, make sure your system is
turned off.
Jumper Setting
To short the designated pins, push the jumper down on them so that they become SHORT. To make the
pins setting OPEN, simply remove the jumper cap.
2-pin Header 3-pin Header 4-pin Header
Open Short Open (1-2) Jumped Open (1-2) Jumped
JCOM1
：
RTC reset
SWJ6
：
RESET
ATPW1
：
AT/ATX Mode selection
J4
：
GEN3 LAY Bypass programming
Pin Description
1-2 (Default) Normal
2-3 Clear CMOS
Pin Description
1-2 Hardware Reset
2-3(Default) Software Reset
Action Description
w/o Jumper(default) ATX mode
w/ Jumper AT mode
Pin Description
1-2 (Default) Normal
2-3 Programming
1
2
1
2
3
4
1
3
2
1
2
3
1
2
3
1
2
3