486-GIO-VT 

Item: AMD DX-4 100 Jumper settings

AMD DX4-100 
     (33.3*3=99.9Mhz @ 100Mhz)
     
     
     JC1 & JC2 -------- 1-2
     JC3 -------------- OPEN
     JC4 -------------- 1-2
     JC7 -------------- SHORTED
     
     JC5 -------------- SHORTED
     RN20 ------------- EMPTY
     RN21 ------------- INSERTED
     RN22 ------------- EMPTY
     
     JC6 --------------  EMPTY
     
     JK1 -------------- 2-3
     JK2 -------------- 2-3
     JK3 -------------- 1-2
     JK4 -------------- 1-2
     
     If it doesn't work, you can try below jumper setting.(50*2=100Mhz)
     
     JC6 -------------- 1-2
     
     JK1 -------------- 2-3
     JK2 -------------- 1-2
     JK3 -------------- 2-3
     JK4 -------------- 2-3