AMD K3780E - Manual (Page 14)

Mainboard
10
Jumpers of I/O Board Type 2 ---
1.4.7 JP1001: CF Card Master/ Slave Jumper
This Jumper is to select the CF works on Secondary Channel master device or Slave device.
JP2 Assignment
Pin 1-2 Closed
Slave
Pin 2-3 Closed
Master (Default)
1.4.8 JP2001: LVDS VDD POWER
It’s for LVDS VDD power setting.
JP3 Assignment
Pin 1-2 Closed
VCC5V
Pin 2-3 Closed
VCC3P3V (Default)
1.4.9 CN1/ CN2: RS-232 Voltage Setting
Pin Assignment Pin Assignment
1 RS232 2 VCC5V
3 RS232 4 RI (Default)
5 RS232 6 VCC12V