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Hardware Installation
Following table lists possible settings of current CPU available on the market.
Note that the correct setting may vary because of new CPU product, refer to
your CPU specification for more details.
CPU
Type
INTEL P54C
Single Voltage
INTEL P55C
Dual Voltage
AMD K5
Single Voltage
AMD K6-166/200
Dual Voltage
AMD K6-233
Dual Voltage
AMD K6-266/300
Dual Voltage
Cyrix 6x86
Single Voltage
Cyrix 6x86L
Dual Voltage
Cyrix M2
Dual Voltage
IDT C6
Single Voltage
Warning: Please make sure that you have installed CPU fan
properly if Intel PP/MT-233 or AMD K6-200/233 is being
selected to use. It may cause your system unstable if you can
not meet the heat dissipation requirement from above CPU
type. 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.
Tip: For supporting more different CPUs in future, this
motherboard uses five switchs to specify Vcore. There are 32
settings totally, and the range is from 1.3V to 3.5V.
2-6
Vcore
S4
S5
S6
3.45V
OFF
ON
ON
2.8V
OFF
OFF
OFF
3.52V
ON
ON
ON
2.9V
ON
OFF
OFF
3.2V
OFF
OFF
ON
2.2V
OFF
ON
OFF
3.52V
ON
ON
ON
2.8V
OFF
OFF
OFF
2.9V
ON
OFF
OFF
3.45V
OFF
ON
ON
S7
S8
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
OFF
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
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