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** |
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F.R. | 1.5*** | 2 |
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| 2.5* |
| 3 | |
| 5 | 6 | 5 | 6 | 5 | 6 | 5 | 6 |
| 2 | 1 | 4 | 3 | 4 | 3 | 4 | 3 |
J5 |
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| 4 | 3 | 2 | 1 | 2 | 1 | 2 | 1 |
| 3 | 4 | 3 | 4 | 3 | 4 | 3 | 4 |
* 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 |
| 5 |
J5 | 3 |
| |
| 1 |
| 2.5 |
6 | 5 |
4 | 3 |
2 | 1 |
3
6 5
4 3 
2 1
3.5
6 5 
6
4 | 3 | 4 |
2 1 
2
F.R. | 4 |
| 5 |
J5 | 3 |
| |
| 1 |
4.5
6 5 
4 3 
2 1 
65
43
21
5 |
5.5
6 5 
4 3
2 1 
6
4
2
Please refet to the following table for CPU internal frequency (MHz) settings (for reference only).
CPU Internal | 100 | 120 | 133 | 150 | 166 | 200 | 233 | 266 | 300 | 333 | 366 | |
Frequency | ||||||||||||
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F.R. | 1.5 | 2 | 2 | 2.5 | 2.5 | 3 | 3.5 | 4 | 4.5 | 5 | 5.5 | |
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Clock | 66 | 60 | 66 | 60 | 66 | 66 | 66 | 66 | 66 | 66 | 66 | |
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Chapter 2 Installation Guide 15
