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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 brand, as it failed to appeal to corporate buyers, and discouraged new system sales.
It was an updated Socket 1 with added support for Pentium OverDrive processors. Socket 2 was a 238-pin zero insertion force (ZIF) 19×19 pin grid array (PGA) socket suitable for the 5-volt, 25 to 66 MHz 486 SX, 486 DX, 486 DX2, 486 OverDrive and 63 or 83 MHz Pentium OverDrive processors. [1]
Socket 5 was created for the second generation of Intel P5 Pentium processors operating at speeds from 75 to 133 MHz [1] [2] as well as certain Pentium OverDrive and Pentium MMX processors with core voltage 3.3 V. It superseded the earlier Socket 4. It was released in March 1994. [3]
The Pentium (also referred to as the i586 or P5 Pentium) is a microprocessor introduced by Intel on March 22, 1993. It is the first CPU using the Pentium brand . [ 3 ] [ 4 ] Considered the fifth generation in the x86 (8086) compatible line of processors, [ 5 ] succeeding the i486 , its implementation and microarchitecture was internally called P5 .
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 4, presented in 1993, was the first CPU socket designed for the early P5 Pentium microprocessors.Socket 4 was the only 5-volt socket for the Pentium. Socket 4 does support a special Pentium OverDrive, which allows running at 120 MHz (for the 60 MHz Pentium) or 133 MHz (for the 66 MHz Pentium).
Intel's i486 OverDrive processors are a category of various Intel i486s that were produced with the designated purpose of being used to upgrade personal computers. The OverDrives typically possessed qualities different from 'standard' i486s with the same speed steppings.
Socket 3 was a 237-pin zero insertion force (ZIF) 19×19 pin grid array (PGA) socket suitable for the 3.3 V and 5 V, 25–50 MHz Intel 486 SX, 486 DX, 486 DX2, 486 DX4, 486 OverDrive and Pentium OverDrive processors as well as AMD Am486, Am5x86 and Cyrix Cx5x86 processors. [2]