(^56) PC Hardware: A Beginner’s Guide
Slot Types
Therearefourtypesofslotmountingsusedtoattachmicroprocessorstomotherboards:
Slot 1 (SC-242 connector) A proprietary Intel connector supporting Celeron
SEPP, Pentium II SECC (single-edge contact cartridge), Pentium II SECC2, and
Pentium III processors. It has a 242-pin edge interface and allows higher
bandwidth than the original socket designs.
Slot 2 (SC-330 connector) Another Intel processor bus connector style for
the high performance Pentium II Xeon and Pentium III Xeon chips. These
processors are designed for Symmetric Multiprocessing (multiple processors
working together), and this slot style enhances this interaction.
Slot A Used by the AMD Athlon processors. It is physically the same
as a Slot 1 connector but has incompatible pin-outs.
Slot M Connectors are planned for the upcoming 64-bit Intel
Itanium processor.
Figure 3-10. A Socket 370 mounting on a motherboard. Photo courtesy of AOpen America, Inc.
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