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Appendix A—Pentium OverDrive
Processor Data Sheet
The Pentium OverDrive processor is a single chip upgrade for any 5
Volt Intel486 processor system with a Pentium OverDrive processor
socket.
The Pentium OverDrive processor employs a high speed 3.3 Volt
Pentium processor core and integral fan/heatsink cooling.
This list describes the features of the Pentium OverDrive processor:
Feature Description
Processor 3.3 Volt Pentium Processor core with:
Intel486 Interface
Superscalar Technology
Dual Instruction Pipelines
Dynamic Branch Prediction
Floating Point Unit High Speed Pentium Processor Floating
Point Unit
Bus/Core Speed 25-MHz Bus Speed/63-MHz Internal Speed
or
33-MHz Bus Speed/83-MHz Internal Speed
Internal Cache 16 KB Code Cache, 16 KB Write Back
Capable Data Cache**
Cooling Unit Integral Fan/Heatsink cooling solution with:
Detachable Fan Unit
Fan slow down detection and
thermal protection circuit
Voltage Regulation On-Package Voltage regulation for conver-
sion of the 5 Volt system supply to a 3.3
Volt supply for the processor
**Support of the internal write back data cache is system-dependent.
If the system does not support a write back interal cache, the cache
operates in a write-through manner, similar to a standard Intel486
processor.