Appendix C
Jumper Table Summary
Setting the CPU Voltage
CPU Type Vcore S4 S5 S6 S7 S8
INTEL P54C Single Voltage 3.45V OFF ON ON ON OFF
INTEL P55C Dual Voltage 2.8V OFF OFF OFF ON OFF
AMD K5 Single Voltage 3.52V ON ON ON ON OFF
AMD K6-166/200 Dual Voltage 2.9V ON OFF OFF ON OFF
AMD K6-233 Dual Voltage 3.2V OFF OFF ON ON OFF
AMD K6-266/300 Dual Voltage 2.2V OFF ON OFF OFF OFF
AMD K6-2 Dual Voltage 2.2V OFF ON OFF OFF OFF
AMD K6-2 400/450 Dual Voltage 2.4V OFF OFF ON OFF OFF
AMD K6-III Dual Voltage 2.4V OFF OFF ON OFF OFF
Cyrix 6x86 Single Voltage 3.52V ON ON ON ON OFF
Cyrix 6x86L Dual Voltage 2.8V OFF OFF OFF ON OFF
Cyrix M2 Dual Voltage 2.9V ON OFF OFF ON OFF
IDT C6 Single Voltage 3.52V
3.3VONONONOFFONONONON
OFF
OFF
Warning: Make sure that you have installed CPU fan properly if
Intel PP/MT-233 or AMD K6 is being selected to use. It may
cause your system unstable if you can not meet the heat
dissipation requirement from above CPU. It is recommended to
adopt larger fan on these CPU for better air flow in the system.
Tip: Normally, for single voltage CPU, Vcpuio (CPU I/O Voltage)
is equal to Vcore, but for CPU that needs dual voltage such as
PP/MT (P55C) or Cyrix 6x86L, Vcpuio is different from Vcore
and must be set to Vio (PBSRAM and Chipset Voltage). The
single or dual voltage CPU is automatically detected by
hardware circuit.
C-1
Jumper Table Summary
Selecting the CPU Frequency
S1
OFF
ON
ON
OFF
ON
ON
OFF
OFF
CPU CLK
66MHz
68MHz
75MHz
83MHz
95MHz
100MHz
112MHz
S2
OFF
OFF
ON
ON
OFF
ON
ON
OFF
S3
CPU Frequency
Ratio
OFF
1.5x (3.5x)
OFF
2x
OFF
2.5x (1.75x)
OFF
3x
ON
4x
ON
4.5x
5x
ON
5.5x
ON
AGP CLK
66MHz
68MHz
75MHz
56MHz
64MHz
66MHz
75MHz
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.
PCI CLK
33MHz
34MHz
38MHz
28MHz
32MHz
33MHz
37MHz
JP4
1-2
2-3
1-2
2-3
2-3
1-2
1-2
JP5
1-2
2-3
2-3
2-3
1-2
1-2
2-3
JP6
1-2
2-3
1-2
1-2
2-3
2-3
2-3
JP25
1-2
1-2
1-2
2-3
2-3
2-3
2-3
C-2
Warning: VIA MVP3 chipset supports maximum 100MHz external
CPU bus clock, the 112MHz settings are for internal test only, set
to 112MHz exceeds the specification of MVP3 chipset, which
may cause serious system damage.
Jumper Table Summary
INTEL
Pentium
P54C 100 100MHz = 1.5x 66MHz OFF OFF OFF 1-2 & 1-2 & 1-2 & 1-2
P54C 133 133MHz = 2x 66MHz ON OFF OFF 1-2 & 1-2 & 1-2 & 1-2
P54C 166 166MHz = 2.5x 66MHz ON ON OFF 1-2 & 1-2 & 1-2 & 1-2
P54C 200 200MHz = 3x 66MHz OFF ON OFF 1-2 & 1-2 & 1-2 & 1-2
INTEL
Pentium
MMX
PP/MT 166 166MHz = 2.5x 66MHz ON ON OFF 1-2 & 1-2 & 1-2 & 1-2
PP/MT 200 200MHz = 3x 66MHz OFF ON OFF 1-2 & 1-2 & 1-2 & 1-2
PP/MT 233 233MHz = 3.5x 66MHz OFF OFF OFF 1-2 & 1-2 & 1-2 & 1-2
Cyrix 6x86
& 6x86L
P166+ 133MHz = 2x 66MHz ON OFF OFF 1-2 & 1-2 & 1-2 & 1-2
P200+ 150MHz = 2x 75MHz ON OFF OFF 1-2 & 2-3 & 1-2 & 1-2
Cyrix M2 CPU Core
MX-PR200 166MHz =
MX-PR233 200MHz =
MX-PR266 233MHz = 3.5x 66MHz OFF OFF OFF 1-2 & 1-2 & 1-2 & 1-2
MX-PR300 225MHz=
CPU Core
Frequency
CPU Core
Frequency
CPU Core
Frequency
Frequency
150MHz=
166MHz=3x2x
233MHz=3x3.5x
Ratio External
Ratio External
Ratio External
Ratio External
2.5x
2x
Bus
Clock
Bus
Clock
Bus
Clock
Bus
Clock
66MHz
75MHzONONONOFF
66MHz
83.3MHz
75MHz
66MHz
S1 S2 S3 JP4,JP5,JP6,JP25
S1 S2 S3 JP4,JP5,JP6,JP25
S1 S2 S3 JP4,JP5,JP6,JP25
S1 S2 S3 JP4,JP5,JP6,JP25
OFFONON
OFF
OFF
OFFONOFF
OFF
1-2 & 1-2 & 1-2 & 1-2
OFF
1-2 & 2-3 & 1-2 & 1-2
OFF
1-2 & 1-2 & 1-2 & 1-2
OFF
2-3 & 2-3 & 1-2 & 2-3
OFF
1-2 & 2-3 & 1-2 & 1-2
OFF
1-2 & 1-2 & 1-2 & 1-2
IDT C6 CPU Core
Frequency
C6-150 150MHz = 2x 75MHz ON OFF OFF 1-2 & 2-3 & 1-2 & 1-2
C6-200 200MHz = 3x 66MHz OFF ON OFF 1-2 & 1-2 & 1-2 & 1-2
Ratio External
Bus
Clock
S1 S2 S3 JP4,JP5,JP6,JP25
C-3
Jumper Table Summary
AMD K5 CPU Core
Frequency
PR100 100MHz = 1.5x 66MHz OFF OFF OFF 1-2 & 1-2 & 1-2 & 1-2
PR133 100MHz = 1.5x 66MHz OFF OFF OFF 1-2 & 1-2 & 1-2 & 1-2
PR166 116MHz = 1.75x 66MHz ON ON OFF 1-2 & 1-2 & 1-2 & 1-2
AMD K6 CPU Core
Frequency
K6-166 166MHz = 2.5x 66MHz ON ON OFF 1-2 & 1-2 & 1-2 & 1-2
K6-200 200MHz = 3x 66MHz OFF ON OFF 1-2 & 1-2 & 1-2 & 1-2
K6-233 233MHz = 3.5x 66MHz OFF OFF OFF 1-2 & 1-2 & 1-2 & 1-2
K6-266 266MHz= 4x 66MHz ON OFF ON 1-2 & 1-2 & 1-2 & 1-2
K6-300 300MHz= 4.5x 66MHz ON ON ON 1-2 & 1-2 & 1-2 & 1-2
K6-2 333 333MHz 3.5x 95MHz OFF OFF OFF 2-3 & 1-2 & 2-3 & 2-3
K6-2 350 350MHz 3.5x 100MHz OFF OFF OFF 1-2 & 1-2 & 2-3 & 2-3
K6-2 366 366MHz 5.5x 66MHz OFF OFF ON 1-2 & 1-2 & 1-2 & 1-2
K6-2 380 380MHz 4x 95MHz ON OFF ON 2-3 & 1-2 & 2-3 & 2-3
K6-2 400 400MHz 4x 100MHz ON OFF ON 1-2 & 1-2 & 2-3 & 2-3
K6-2 450 450MHz 4.5x 100MHz ON ON ON 1-2 & 1-2 & 2-3 & 2-3
K6-III 400 400MHz 4x 100MHz ON OFF ON 1-2 & 1-2 & 2-3 & 2-3
K6-III 450 450MHz 4.5 100MHz ON ON ON 1-2 & 1-2 & 2-3 & 2-3
Ratio External
Bus
Clock
Ratio External
Bus
Clock
S1 S2 S3 JP4,JP5,JP6,JP25
S1 S2 S3 JP4,JP5,JP6,JP25
DRAM Clock
JP23
1-2
2-3
JP24
1-2
2-3
Clear CMOS
JP14
1-2
2-3
C-4
Clear CMOS
Normal operation
(default)
Clear CMOS
DRAM CLK
CPU CLK
AGP CLK
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