Jumper Setting - AMD Hudson M1 Chipset Technical Manual

Chapter 2
Hardware Installation

2-1 Jumper Setting

(1) JBAT(3-pin): Clear CMOS
JBAT
JBAT
3
1
1 3
1-2 closed: Normal
2-3 closed : Clear CMOS
(2) JCOM1(6-pin): COM1 Port RS232/422/485 function select
JCOM1
1 1
1
1-2 closed: RS232
3-4 closed : RS485
5-6 closed : RS422
7