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Chapter 2
2.8
CPU SPEED
CPU Type
Freq.
Intel Pentium
90MHz
Intel Pentium
100MHz 1.5x
Intel Pentium
120MHz 2.0x
Intel Pentium
133MHz 2.0x
Intel Pentium
150MHz 2.5x
Intel Pentium
166MHz 2.5x
Intel Pentium
200MHz 3.0x
Intel Pentium w/MMX 166MHz 2.5x
Intel Pentium w/MMX 200MHz 3.0x
Intel Pentium w/MMX 233MHz 3.5x
AMD-K5-PR120
120MHz 2.0x
AMD-K5-PR133
133MHz 2.0x
AMD-K5-PR166
166MHz 2.5x
AMD-K6/166
166MHz 2.5x
AMD-K6/200
200MHz 3.0x
AMD-K6/233
233MHz 3.5x
AMD-K6/266
266MHz 4.0x
AMD-K6/300
300MHz 4.5x
AMD-K6-2/250
250MHz 2.5x 100MHz ON
AMD-K6-2/266
266MHz 4.0x
AMD-K6-2/300
300MHz 3.0x 100MHz OFF
AMD-K6-2/333
333MHz 3.5x
AMD-K6-2/350
350MHz 3.5x 100MHz OFF
Cyrix 6x86L-PR150
120MHz 2.0x
Cyrix 6x86L-PR166
133MHz 2.0x
Cyrix 6x86L-PR200
150MHz 2.0x
Cyrix 6x86MX-PR166 150MHz 2.5x
Cyrix 6x86MX-PR200 150MHz 2.0x
Cyrix 6x86MX-PR200 166MHz 2.5x
Cyrix 6x86MX-PR233 188MHz 2.5x
Cyrix 6x86MX-PR233 200MHz 3.0x
Cyrix M II-300
225MHz 3.0x
Cyrix M II-300
233MHz 3.5x
IDT WinChip C6-180 180MHz 3.0x
IDT WinChip C6-200 200MHz 3.0x
IBM 6x86MX-PR266 208MHz 2.5x
IBM 6x86MX-PR300 225MHz 3.0x
IBM 6x86MX-PR300 233MHz 3.5x
IBM 6x86MX-PR333 250MHz 3.0x
Reserve for future support
14
Ratio
Bus
Freq. Ratio Setting Bus Freq. Setting
Freq.
1-3
1-4
1.5x
60MHz OFF
OFF
66MHz OFF
OFF
60MHz
ON
OFF
66MHz
ON
OFF
60MHz
ON
ON
66MHz
ON
ON
66MHz OFF
ON
66MHz
ON
ON
66MHz OFF
ON
66MHz OFF
OFF
60MHz
ON
OFF
66MHz
ON
OFF
66MHz
ON
ON
66MHz
ON
ON
66MHz OFF
ON
66MHz OFF
OFF
66MHz
ON
OFF
66MHz
ON
ON
ON
66MHz
ON
OFF
ON
95MHz OFF
OFF
OFF
60MHz
ON
OFF
66MHz
ON
OFF
75MHz
ON
OFF
60MHz
ON
ON
75MHz
ON
OFF
66MHz
ON
ON
75MHz
ON
ON
66MHz OFF
ON
75MHz OFF
ON
66MHz OFF
OFF
60MHz OFF
ON
66MHz OFF
ON
83MHz
ON
ON
75MHz OFF
ON
66MHz OFF
OFF
83MHz OFF
ON
Table 3
JP9 JP10
1-5
1-6
1-7
1-8
OFF
ON
ON
ON
2-3
OFF
OFF
ON
ON
2-3
OFF
ON
ON
ON
2-3
OFF
OFF
ON
ON
2-3
OFF
ON
ON
ON
2-3
OFF
OFF
ON
ON
2-3
OFF
OFF
ON
ON
2-3
OFF
OFF
ON
ON
2-3
OFF
OFF
ON
ON
2-3
OFF
OFF
ON
ON
2-3
OFF
ON
ON
ON
2-3
OFF
OFF
ON
ON
2-3
OFF
OFF
ON
ON
2-3
OFF
OFF
ON
ON
2-3
OFF
OFF
ON
ON
2-3
OFF
OFF
ON
ON
2-3
ON
OFF
ON
ON
2-3
ON
OFF
ON
ON
2-3
OFF
OFF
OFF
OFF
1-2
ON
OFF
ON
ON
2-3
OFF
OFF
OFF
OFF
1-2
OFF
ON
OFF
OFF
1-2
OFF
OFF
OFF
OFF
1-2
OFF
ON
ON
ON
2-3
OFF
OFF
ON
ON
2-3
OFF
ON
ON
OFF
1-2
OFF
ON
ON
ON
2-3
OFF
ON
ON
OFF
1-2
OFF
OFF
ON
ON
2-3
OFF
ON
ON
OFF
1-2
OFF
OFF
ON
ON
2-3
OFF
ON
ON
OFF
1-2
OFF
OFF
ON
ON
2-3
OFF
ON
ON
ON
2-3
OFF
OFF
ON
ON
2-3
OFF
OFF
ON
OFF
1-2
OFF
ON
ON
OFF
1-2
OFF
OFF
ON
ON
2-3
OFF
OFF
ON
OFF
1-2
1-2
1-2
1-2
1-2
1-2
1-2
1-2
1-2
1-2
1-2
1-2
1-2
1-2
1-2
1-2
1-2
1-2
1-2
2-3
1-2
2-3
2-3
2-3
1-2
1-2
1-2
1-2
1-2
1-2
1-2
1-2
1-2
1-2
1-2
1-2
1-2
1-2
1-2
1-2
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