The Socket 8

CPU socket In computer hardware, a CPU socket or CPU slot contains one or more mechanical components providing mechanical and electrical connections between a microprocessor and a printed circuit board (PCB). This allows for placing and replacing the cen ...

was used exclusively with the

Intel Intel Corporation is an American multinational corporation and technology company headquartered in Santa Clara, California. It is the world's largest semiconductor chip manufacturer by revenue, and is one of the developers of the x86 seri ...

Pentium Pro The Pentium Pro is a sixth-generation x86 microprocessor developed and manufactured by Intel and introduced on November 1, 1995. It introduced the P6 microarchitecture (sometimes termed i686) and was originally intended to replace the original P ...

and

Pentium II Overdrive The Pentium OverDrive was a microprocessor marketing brand name used by Intel, to cover a variety of consumer upgrade products sold in the mid-1990s. It was originally released for 486 motherboards, and later some Pentium sockets. Intel dropped the ...

computer A computer is a machine that can be programmed to Execution (computing), carry out sequences of arithmetic or logical operations (computation) automatically. Modern digital electronic computers can perform generic sets of operations known as C ...

processors A central processing unit (CPU), also called a central processor, main processor or just processor, is the electronic circuitry that executes instructions comprising a computer program. The CPU performs basic arithmetic, logic, controlling, ...

. Intel discontinued Socket 8 in favor of Slot 1 with the introduction of the Pentium II and

Slot 2 Slot 2 refers to the physical and electrical specification for the 330-lead Single Edge Contact Cartridge (or edge-connector) used by Intel's Pentium II Xeon and Pentium III Xeon. When first introduced, Slot 1 Pentium IIs were intended to re ...

with the release of the

Pentium II Xeon Xeon ( ) is a brand of x86 microprocessors designed, manufactured, and marketed by Intel, targeted at the non-consumer workstation, server, and embedded system markets. It was introduced in June 1998. Xeon processors are based on the same arc ...

in 1999.

Technical specifications

Socket 8 is a unique rectangular CPGA socket with 387 pins. It supports FSB speeds ranging from 60 to 66 MHz, a voltage from 3.1 or 3.3V, and support for the Pentium Pro and the

Pentium II OverDrive The Pentium OverDrive was a microprocessor marketing brand name used by Intel, to cover a variety of consumer upgrade products sold in the mid-1990s. It was originally released for 486 motherboards, and later some Pentium sockets. Intel dropped the ...

CPUs. Socket 8 also has a unique pin arrangement pattern. One part of the socket has pins in a PGA grid, while the other part uses a

SPGA A pin grid array (PGA) is a type of integrated circuit packaging. In a PGA, the package is square or rectangular, and the pins are arranged in a regular array on the underside of the package. The pins are commonly spaced 2.54 mm (0.1") a ...

grid. Intel did not return to rectangular sockets until the launch of

LGA 1700 LGA 1700 (Socket V) is a zero insertion force flip-chip land grid array (LGA) socket, compatible with Intel desktop processors Alder Lake and Raptor Lake, which was first released in November 2021. LGA 1700 is designed as a replacement for L ...

in late 2021. Intel Pentium II Overdrive Engineering Sample.jpg, An

engineering sample Engineering samples are the beta versions of integrated circuits that are meant to be used for compatibility qualification or as demonstrators. They are usually loaned to OEM manufacturers prior to the chip's commercial release to allow product d ...

of the Pentium II Overdrive CPU showing the bottom of the unit. KL Socket8 Slot1 Adapter.jpg, Socket 8 to Slot 1 adapter

References

{{intelsock Socket 008

Technical specifications

See also

References