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2. Set the External Bus Speed (MHz) and Bus Frequency Ratio
CPU TYPE
Freq.
Ratio
Bus F.
SD
FS2
FS1
FS0
BF0
BF1
BF2
AMD-K6-III/550
550MHz
5.5x
100MHz
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Open
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AMD-K6-III/500
500MHz
5.0x
100MHz
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Open
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Open
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AMD-K6-III/475
475MHz
5.0x
95MHz
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Open
Open
Open
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AMD-K6-III/450
450MHz
4.5x
100MHz
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Open
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AMD-K6-III/400
400MHz
4.0x
100MHz
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Open
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AMD-K6-2/500
500MHz
5.0x
100MHz
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Open
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Open
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AMD-K6-2/475
475MHz
5.0x
95MHz
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Open
Open
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AMD-K6-2/450
450MHz
4.5x
100MHz
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Open
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AMD-K6-2/400
400MHz
4.0x
100MHz
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Open
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AMD-K6-2/380
380MHz
4.0x
95MHz
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Open
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AMD-K6-2/366
366MHz
5.5x
66MHz
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AMD-K6-2/350
350MHz
3.5x
100MHz
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Open
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Open
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AMD-K6-2/333
333MHz
3.5x
95MHz
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Open
Open
Open
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Open
AMD-K6-2/300
300MHz
3.0x
100MHz
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Open
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AMD-K6-2/266
266MHz
4.0x
66MHz
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AMD-K6/300
300MHz
4.5x
66MHz
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AMD-K6/266
266MHz
4.0x
66MHz
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AMD-K6/233
233MHz
3.5x
66MHz
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AMD-K6/200
200MHz
3.0x
66MHz
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AMD-K6/166
166MHz
2.5x
66MHz
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AMD-K5/133
100MHz
1.5x
66MHz
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AMD-K5/100
100MHz
1.5x
66MHz
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Intel Pentium P54C
166MHz
2.5x
66MHz
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Intel Pentium P54C
133MHz
2.0x
66MHz
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Intel Pentium P54C
100MHz
1.5x
66MHz
Open
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Open
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Intel Pentium P55C
233MHz
3.5x
66MHz
Open
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Open
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Open
Intel Pentium P55C
200MHz
3.0x
66MHz
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Intel Pentium P55C
166MHz
2.5x
66MHz
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IBM/Cryix M II-PR366
366MHz
2.5x
100MHz
Open
Open
Close
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Open
IBM/Cryix M II-PR333
333MHz
3.0x
83MHz
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Open
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IBM/Cryix M II-PR300
300MHz
3.0x
75MHz
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Open
Open
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IBM/Cryix M II-PR300
300MHz
3.5x
66MHz
Open
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Open
Open
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IBM/Cryix 6x86MX-
PR 233
200MHz
3.0x
66MHz
Open
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Open
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IBM/Cryix 6x86MX-
PR 200
166MHz
2.5x
66MHz
Open
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IBM/Cryix 6x86 PR166+
133MHz
2.0x
66MHz
Open
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Open
Open
IBM/Cryix 6x86L PR166
133MHz
2.0x
66MHz
Open
Close
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Close
Open
Open