Socket 8 is a processor socket used exclusively for Pentium Pro and Pentium II OverDrive processors .
| Socket 8 | |
|---|---|
 | |
| Connector type | Zif |
| Processor Form Factors | CPGA |
| Number of contacts | 387 |
| Used tire | AGTL |
| FSB frequency, MHz | 60–66 MHz |
| Voltage | 3.1; 3.3 V |
| Processors | Intel Pentium Pro , Pentium II OverDrive |
History
As the internal frequencies of the processors increased and the volume of the 2nd level cache increased, the problem arose of introducing this cache into the processor. This problem was resolved quickly enough. Shortly after the appearance of the Pentium 75 processor, a new generation processor appeared - the Pentium Pro . This processor contained two crystals at once - a processor and a cache, interconnected by a special bus .
Because of this design, the processor turned out to be rectangular. The socket 8 socket for it also had a similar shape. Due to a number of shortcomings and the high cost of the Pentium Pro, this direction was not widely used even in high- performance computers. New technologies, such as MMX , were not introduced in Pentium Pro. Pentium Pro and Socket 8 were replaced by Pentium II and Slot 1 .
In 1998, the Pentium II OverDrive processor was released - the most powerful officially released processor for this connector. Later, PowerLeap produced the PL-PRO / II Socket 8 → Socket 370 processor adapter, which made it possible to upgrade computers with Celeron Mendocino or Coppermine-128. Pentium II and Celeron brought MMX technology support to the socket 8 platform, while the Coppermine-128 processor and SSE technology.