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Hardware Installation
2-11
AMD K6
CPU Core
Frequency
Ratio
External
Bus Clock
S1
S2
S3
JP4 & JP5 & JP6
PR2-166
166MHz =
2.5x
66MHz
ON
ON
OFF 2-3 & 1-2 & 1-2
PR2-200
200MHz =
3x
66MHz
OFF ON
OFF 2-3 & 1-2 & 1-2
PR2-233
233MHz =
3.5x
66MHz
OFF OFF OFF 2-3 & 1-2 & 1-2
PR2-266
266MHz=
4x
66MHz
ON
OFF ON
2-3 & 1-2 & 1-2
PR2-300
300MHz=
4.5x
66MHz
ON
ON
ON
2-3 & 1-2 & 1-2
Cyrix 6x86
& 6x86L
CPU Core
Frequency
Ratio
External
Bus Clock
S1
S2
S3
JP4 & JP5 & JP6
P150+
120MHz =
2x
60MHz
ON
OFF OFF 1-2 & 2-3 & 1-2
P166+
133MHz =
2x
66MHz
ON
OFF OFF 2-3 & 1-2 & 1-2
P200+
150MHz =
2x
75MHz
ON
OFF OFF 1-2 & 2-3 & 2-3
Cyrix M2
CPU Core
Frequency
Ratio
External
Bus Clock
S1
S2
S3
JP4 & JP5 & JP6
MX-PR166
150MHz =
2.5x
60MHz
ON
ON
OFF 1-2 & 2-3 & 1-2
MX-PR200
166MHz =
150MHz=
2.5x
2x
66MHz
75MHz
ON
ON
ON
OFF
OFF
OFF
2-3 & 1-2 & 1-2
1-2 & 2-3 & 2-3
MX-PR233
200MHz =
166MHz=
3x
2x
66MHz
83.3MHz
OFF
ON
ON
OFF
OFF
OFF
2-3 & 1-2 & 1-2
2-3 & 1-2 & 2-3
MX-PR266
233MHz =
3.5x
66MHz
OFF OFF OFF 2-3 & 1-2 & 1-2
IDT C6
CPU Core
Frequency
Ratio
External
Bus Clock
S1
S2
S3
JP4 & JP5 & JP6
C6-150
150MHz =
2x
75MHz
ON
OFF OFF 1-2 & 2-3 & 2-3
C6-180
180MHz =
3x
60MHz
OFF ON
OFF 1-2 & 2-3 & 1-2
C6-200
200MHz =
3x
66MHz
OFF ON
OFF 2-3 & 1-2 & 1-2
Note:
Cyrix 6x86 and AMD K5 CPU use P-rating for the
reference of CPU benchmark compared with INTEL P54C,
their internal core frequency is not exactly equal to P-rating
marked on the CPU. For example, Cyrix P166+ is 133MHz but
performance is almost equal to P54C 166MHz and AMD
PR133 is 100MHz but performance is almost equal to INTEL
P54C 133MHz.
Note:
INTEL TX chipset does not support CPU with 50/55MHz
external bus clock, so that P54C 75MHz, Cyrix P120+,P133+
and AMD PR75 are not supported by this mainboard
.