User Guide

Jumper Table Summary
A-2
Type
Intel
P54C
3.45V 3.45V Vcore 1-2 1-2 1-2,
3-4
Open 1-2,
3-4
Open
Intel
MMX
(P55C)
2.8V 3.45V Vio 7-8 1-2 Open 1-2,
3-4
Open 1-2,
3-4
AMD K5
(Single
voltage)
3.52V 3.45V Vcore 3-4 1-2 1-2,
3-4
Open 1-2,
3-4
Open
AMD
K6-
166/200
2.9V 3.45V Vio 5-6 1-2 Open 1-2,
3-4
Open 1-2,
3-4
AMD
K6-233
3.2V 3.45V Vio 9-10 1-2 Open 1-2,
3-4
Open 1-2,
3-4
Cyrix
6x86
3.52V 3.45V Vcore 3-4 1-2 1-2,
3-4
Open 1-2,
3-4
Open
Cyrix
6x86L
2.8V 3.45V Vio 7-8 1-2 Open 1-2,
3-4
Open 1-2,
3-4
Cyrix M2 2.9V 3.45V Vio 5-6 1-2 Open 1-2,
3-4
Open 1-2,
3-4
IDT C6 3.45V 3.45V Vcore 1-2 1-2 1-2,
3-4
Open 1-2,
3-4
Open
CPU Frequency Select
JP1
1-2
2-3
2-3
1-2
JP2
1-2
1-2
2-3
2-3
CPU Frequency
Ratio
1.5x (3.5x)
2x
2.5x (1.75x)
3x
JP3
2-3
1-2
2-3
JP4
2-3
2-3
1-2
CPU External
Clock
50MHz
60MHz
66MHz
Intel
Pentium
CPU Core
Frequency
Ratio External Bus
Clock
JP1 & JP2 JP3 & JP4
P54C 75 75MHz = 1.5x 50MHz 1-2 & 1-2 2-3 & 2-3
P54C 90 90MHz = 1.5x 60MHz 1-2 & 1-2 1-2 & 2-3
P54C 100 100MHz = 1.5x 66MHz 1-2 & 1-2 2-3 & 1-2
P54C 120 120MHz = 2x 60MHz 2-3 & 1-2 1-2 & 2-3
P54C 133 133MHz = 2x 66MHz 2-3 & 1-2 2-3 & 1-2
P54C 150 150MHz = 2.5x 60MHz 2-3 & 2-3 1-2 & 2-3
P54C 166 166MHz = 2.5x 66MHz 2-3 & 2-3 2-3 & 1-2
P54C 200 200MHz = 3x 66MHz 1-2 & 2-3 2-3 & 1-2
Intel
Pentium
CPU Core
Frequency
Ratio External
Bus Clock
JP1 & JP2 JP3 & JP4