Socket 8

The Socket 8 CPU socket was used exclusively with the Intel Pentium Pro and Pentium II Overdrive computer processors. Intel discontinued Socket 8 in favor of Slot 1 with the introduction of the Pentium II and Slot 2 with the release of the Pentium II Xeon in 1998.

Socket 8

Type	ZIF
Chip form factors	CPGA
Contacts	387
FSB protocol	AGTL
FSB frequency	60–66 MHz
Voltage range	3.1 or 3.3 V
Processors	Pentium Pro, Pentium II OverDrive
Predecessor	Socket 7
Successor	Slot 2
This article is part of the CPU socket series

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 of 3.1 or 3.3 V, and support for the Pentium Pro and the Pentium II OverDrive 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 grid.^[1]

• 
  An engineering sample of the Pentium II Overdrive CPU showing the bottom of the unit.
• 
  Socket 8 to Slot 1 adapter (Slotket)

See also

• List of Intel microprocessors