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Chapter 2 Installation Guide 15
Frequency Ratio (J5)
This jumper sets the frequency ratio between the internal
frequency of the CPU and the BUS Clock. If you use an AMD
K6 CPU, please refer to J5 frequency ratio for K6 only.
J5 Frequency Ratio**
F.R. 1.5*** 2 2.5* 3
J5
* Default setting
** Jumper settings for pins 1 and 2 do not affect this setting
*** For Intel 233 MHz MMX CPUs, F.R. is 3.5 for this setting
J5 Frequency Ratio for K6 only
F.R. 2 2.5 3 3.5
J5
F.R. 4 4.5 5 5.5
J5
Please refet to the following table for CPU internal frequency
(MHz) settings (for reference only).
5 6
3 4
1 2
5 6
3 4
1 2
5 6
3 4
1 2
5 6
3 4
1 2
5 6
3 4
1 2
5 6
3 4
1 2
5 6
3 4
1 2
5 6
3 4
1 2
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001021331051661002332662003333663
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5.1225.25.235.345.455.5
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6606660666666666666666
4
3
1
2
12
43
12
43
1
2
43
3 4 3 4 3 4 3 4
5 6 5 6 5 6 5 6