User Guide

A-1
Appendix A
Jumper Table Summary
Setting the CPU Voltage
JP7
1-2
3-4
5-6
7-8
9-10
11-12
CPU Core Voltage (Vcore)
3.45V (default for P54C)
3.52V (Cyrix or AMD)
2.9V (AMD K6)
2.8V (PP/MT P55C)
2.7V
2.5V
JP8
1-2
3-4
I/O Voltage (Vio)
3.45V (default)
3.52V
JP9
Close
Open
JP10
Open
Close
JP11
Close
Open
CPU Type (Vcpuio)
Single Voltage CPU, Vcpuio = Vcore, (default).
Dual Voltage CPU, Vcpuio = Vio, (PP/MT P55C).
CPU Type Vcore Vio Vcpuio JP7 JP8 JP9 JP10 JP11
INTEL P54C 3.45V 3.45V Vcore 1-2 1-2 Closed Open Closed
INTEL PP/MT 2.8V 3.45V Vio 7-8 1-2 Open Closed Open
AMD K5
(Single voltage)
3.52V 3.45V Vcore 3-4 1-2 Closed Open Closed
AMD K6 2.9V 3.45V Vio 5-6 1-2 Open Closed Open
Cyrix 6x86 3.52V 3.45V Vcore 3-4 1-2 Closed Open Closed
Cyrix 6x86L 2.8V 3.45V Vio 7-8 1-2 Open Closed Open