Hardware Installation
2-6
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
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
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
3.45V
OFF
ON
ON
ON
OFF
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.
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