486-VIP-IO Item: AMD DX4-100 Jumper Settings Use the BIOS version 427GN2A.awd. Note: CPU Voltage ---- 3.45V Use daugther board. Other jumpers: JC7 --- Open JC8 --- 1-2 JC9 --- 1-2 J27 --- 2-3 JT3 --- 2-3 JT4 --- 1-2 J19 --- 1-2