Intel Pentium III on Slot 1 adapter

Socket 370 started as a budget-oriented platform for 66 MHz FSB PPGA Mendocino Celeron CPUs in late 1998, as the move to on-die L2 cache eliminated the need for a PCB design as seen on Slot 1.

From late 1999 to late 2000, it was Intel’s main desktop socket for 100/133 MHz FSB Coppermine Pentium IIIs. In 2001, the Tualatin Pentium III processors brought changes to the infrastructure which required dedicated Tualatin-compatible motherboards; some manufacturers would indicate this with a blue (instead of white) socket. These late sockets were typically compatible with Coppermine processors, but not older Mendocino Celerons.

Some motherboards that used Socket 370 support Intel processors in dual CPU configurations (e. g. ABIT BP6). Other motherboards allowed the use of a Socket 370 or a Slot 1 CPU, but not at the same time.

Slotkets are available that allows Socket 370 CPUs to be used on Slot 1 based motherboards. These devices are equipped with their own voltage regulator modules, in order to supply the new CPU with a lower core voltage, which the motherboard would not otherwise allow.

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