Specifications

Computer Architecture and Maintenance (G-Scheme-2014)

Figure Intel Socket 1 pinout.

The original DX processor draws a maximum 0.9 amps of 5V power in 33MHz

form (4.5 watts) and a maximum 1 amp in 50MHz form (5 watts). The DX2 processor,

or OverDrive processor, draws a maximum 1.2 amps at 66MHz (6 watts). This minor

increase in power requires only a passive heatsink consisting of aluminum fins that are

glued to the processor with thermal transfer epoxy. Passive heatsinks don't have any

mechanical components like fans. Heatsinks with fans or other devices that use power

are called active heatsinks. OverDrive processors rated at 40MHz or less do not have

heatsinks.

Socket 2

When the DX2 processor was released, Intel was already working on the new

Pentium processor. The company wanted to offer a 32-bit, scaled-down version of the

Pentium as an upgrade for systems that originally came with a DX2 processor. Rather

than just increasing the clock rate, Intel created an allnew chip with enhanced

capabilities derived from the Pentium.

The chip, called the Pentium OverDrive processor, plugs into a processor socket with

the Socket 2 or Socket 3 design. These sockets hold any 486 SX, DX, or DX2 processor,

as well as the Pentium OverDrive. Because this chip is essentially a 32-bit version of the

(normally 64-bit) Pentium chip, many have taken to calling it a Pentium-SX. It was

available in 25/63MHz and 33/83MHz versions. The

first number indicates the base motherboard speed; the

second number indicates the actual operating speed of the

Pentium OverDrive chip. As you can see, it is a clock-multiplied

chip that runs at 2.5 times the motherboard speed. Figure

shows the pinout configuration of the official Socket 2 design.

Figure: 238-pin Intel Socket 2 configuration.

Prepared By – Prof. Manoj.kavedia (9860174297 – 9324258878 ) (www.kavediasir.yolasite.com)