What is Slot 1?
Feb 20 '01 (Updated Jan 03 '02)
The Bottom Line Slot 1 was designed for the Pentium II
"Slot 1" is a SC-242 (242 contact edge) specification for Intel Celeron, Pentium II and Pentium III processors.
The AMD Athlon(Slot A) also uses a SC-242 connector, but is electrically incompatible with Slot 1.
Slot 1 motherboards will have a SC-242 socket on them, which looks similar to a AGP slot.
Slot 1 can operate at 66Mhz, 100Mhz or 133Mhz Front Side Bus(FSB) speeds.
You can purchase an adaptor(sometimes called a 'slotkey') to make a Socket-370 processor work in a Slot-1 Motherboard, however the motherboard still has to support the processor speed and Front Side Bus of the processor.
You can also have motherboards that take two IDENTICAL Slot-1 processors for multi-processor configuration.
Intel has phased out Slot 1 in favour of Socket-370.
In some Slot-1 configurations, the clamps that hold the processor in place don't hold it very well and vibrations will loosen the processor out of it's socket.
Pentium II's with SECC have a second clamp that clips onto the motherboard and the processors heatsink. Putting a SECC2 processor in a SECC board will have the problem of there not being this second clamp.
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