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Processor Family |
Model Name |
Intel Pentium III Katmai |
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Performance Rating |
500 MHz |
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Front-side Bus Speed |
100 MHz |
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Multiplier Ratio |
5.0× |
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Physical Design |
Interface Packing |
242-Pin Slot 1 Cartridge |
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Core Voltage |
2.0 voltage |
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Power Consumption |
19 watts |
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Maximum Power |
28 watts |
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Pentium III Katmai |
Model Rating |
500 MHz |
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Overclocking Potential |
Multiplier Lock Support |
Locked Multiplier |
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Typical Multiplier O/C |
N/A |
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Typical Front-side Bus O/C |
Up to 112 – 124 MHz |
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Typical O/C Potential |
560 – 600 MHz |
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Maximum O/C Potential |
600+ MHz |
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Overclocking Tolerances |
Recommended Cooling Type |
Forced-Air Heatsink |
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Recommended Heatsink Coolers |
Globalwin VES20 |
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Alpha P3125 |
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Recommended Peltier Active Cooler |
Swiftech MC1000 |
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PC-10a Cooler |
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Maximum Core Voltage |
2.2 volts with Heatsink Cooler |
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Maximum I/O Voltage |
3.5 volts with Chipset Cooler |
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Maximum Core Temperature |
80 – 85° Celsius |
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Overclocking the Pentium III Katmai 500 MHz works best with the 112-MHz front-side bus rate. Unlike the Katmai 450, this model is not suitable for 133-MHz bus overclocking due to its higher 5.0× internal multiplier. Most Katmai 500 processors will reach maximum overclocking potential around 600 MHz, though many units will never see returns beyond the 560-MHz level.
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