User Guide

Jumper Table Summary
A-2
CPU Type JP11 Vcore Vio Vcpuio
INTEL P54C Single Voltage 1-2 3.45V 3.45V Vcore
INTEL MMX P55C Dual Voltage 7-8 2.8V 3.45V Vio
AMD K5 Single Voltage 3-4 3.52V 3.45V Vcore
AMD K6-166/200 Dual Voltage 5-6 2.9V 3.45V Vio
AMD K6-233 Dual Voltage 9-10 3.2V 3.45V Vio
Cyrix 6x86 Single Voltage 3-4 3.52V 3.45V Vcore
Cyrix 6x86L Dual Voltage 7-8 2.8V 3.45V Vio
Cyrix M2 Dual Voltage 5-6 2.9V 3.45V Vio
Selecting the CPU Frequency
JP3
1-2
1-2
1-2
1-2
2-3
2-3
2-3
2-3
JP2
1-2
1-2
2-3
2-3
1-2
2-3
2-3
1-2
JP1
1-2
2-3
2-3
1-2
2-3
2-3
1-2
1-2
CPU
Frequency
Ratio
1.5x (3.5x)
2x
2.5x (1.75x)
3x
4x
4.5x
5x
5.5x
JP4
1-2
2-3
2-3
1-2
JP5
2-3
2-3
1-2
1-2
JP6
1-2
1-2
1-2
2-3
CPU
External
Clock
60MHz
66MHz
75MHz
83.3MHz
Warning: INTEL TX chipset supports only 60/66MHz
external CPU bus clock, the 75/83.3 MHz settings are for
internal test only, set to 75/83.3MHz exceeds the
specification of TX chipset, which may cause serious
system damage.
Note: Intel PP/MT MMX 233MHz is using 1.5x jumper
setting for 3.5x frequency ratio, and AMD PR166 is using
2.5x setting for 1.75x frequency ratio.
Warning: Cyrix 6x86 P200+ uses 75MHz external clock,
the jumper setting shown on the table below is for user's
convenient. It may cause serious system damage to use
75MHz clock.