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Intel Slot 1 Specification

Designation: Slot 1

Number of Pins: 242

Pin Rows: 2

Voltage: 2.8-3.3

Motherboard Class: Pentium Pro / Pentium II

Supported Processors: Pentium II, Pentium Pro (with Socket 8 on daughtercard)

Description: The most significant change in motherboard interfacing since the creation of the pin grid array with the 80286, Slot 1 is the first to use the new SEC daughtercard technology created for the Pentium II processor. The slot provides the interface to the processor and level 2 cache on the SEC card. In addition, many Slot 1 motherboards are being designed to accept a daughtercard carrying a Socket 8 for the Pentium Pro, to allow Pentium Pro buyers an upgrade path to Slot 1 processors later on.

Next: Summary of Sockets and Slots for Specific Processors

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