6 Technical Information
System Board Connectors and Switches
The settings for different processors at different speeds are a combination of the settings of switches 1, 2, 3, 4 and 7.
Pentium processor | Switch1 | Switch 2 | Switch 3 | Switch 4 | Switch 7 |
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CPU Frequency 75 MHz | Closed | Closed | Open | Open | Open |
CPU bus Frequency 50 MHz |
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PCI Frequency 25 MHz |
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AT Frequency 8.33 MHz |
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CPU Frequency 90 MHz | Closed | Open | Open | Open | Closed |
CPU bus Frequency 60 MHz |
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PCI Frequency 30 MHz |
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AT Frequency 7.5 MHz |
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CPU Frequency 100 MHz | Open | Closed | Open | Open | Closed |
CPU bus Frequency 66 MHz |
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PCI Frequency 33 MHz |
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AT Frequency 8.25 MHz |
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CPU Frequency 120 MHz | Closed | Open | Closed | Open | Closed |
CPU bus Frequency 60 MHz |
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PCI Frequency 30 MHz |
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AT Frequency 7.5 MHz |
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CPU Frequency 133 MHz | Open | Closed | Closed | Open | Closed |
CPU bus Frequency 66 MHz |
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PCI Frequency 33 MHz |
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AT Frequency 8.25 MHz |
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The following processor speeds have been announced by Intel.
Pentium processor | Switch 1 | Switch 2 | Switch 3 | Switch 4 | Switch 7 |
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CPU Frequency 150 MHz | Closed | Open | Closed | Closed | Closed |
CPU bus Frequency 60 MHz |
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PCI Frequency 30 MHz |
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AT Frequency 7.5 MHz |
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CPU Frequency 166 MHz | Open | Closed | Closed | Closed | Closed |
CPU bus Frequency 66 MHz |
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PCI Frequency 33 MHz |
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AT Frequency 8.25 MHz |
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