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| CPU External Clock
(bus) Frequency Selection |
| CPU Speed |
Ext. Clock Speed |
JP12 |
| Pentium- 75 |
50Mhz |
|
| Pentium-90/120/150 |
60Mhz |
|
| Pentium- 100/133/166/200 |
66.6Mhz (default) |
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| CPU : BUS Frequency
Ratio (1.5x, 2.0x, 2.5x, 3.0x) |
| JP13 |
JP14 |
P54C/CQS/CS |
P55C/P55CT |
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|
2.5 |
2.5 |
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|
3 |
3 |
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2 |
2 |
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1.5 |
Reserved (3.5x ??) | |
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| CPU Voltage Regulator
Selection |
| JP15 |
JP16 |
JP23* |
JP3 |
JP10 |
Voltage |
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3.45V |
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3.3V (default) |
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3.45V and 2.8V |
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3.45V and 2.5V |
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3.3V and 2.8V |
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3.3V and 2.5 |
JP23* : This could be jumper JP32. This may be a
misprint in the manual or on the board. Has been tested and worked.
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