What Is a Socket A Motherboard?

The PCI slot is an expansion slot based on a PCI local bus (Peripheral Component Interconnection, peripheral component expansion interface). Its color is generally milky white, located below the AGP slot on the motherboard and above the ISA slot. Its bit width is 32-bit or 64-bit, the operating frequency is 33MHz, and the maximum data transfer rate is 133MB / sec (32-bit) and 266MB / sec (64-bit). Can be plugged in sound card, network card, built-in Modem, built-in ADSL Modem, USB2.0 card, IEEE1394 card, IDE interface card, RAID card, TV card, video capture card, and many other types of expansion cards.

PCI slot

PCI slot is based on PCI Local Bus (Peripheral Component Interconnection,

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Because the PCI bus has only 133MB / s bandwidth, it is more than enough for most input / output devices such as sound cards, network cards, and video cards, but it cannot meet its needs for increasingly powerful graphics cards. Intel's IDF in the spring of 2001 officially announced the third-generation I / O technology designed to replace the PCI bus. This specification was developed by the AWG (Arapahoe Working Group) supported by Intel. On April 17, 2002, the AWG officially announced that the draft 3GIO1.0 specification was completed and transferred to the PCI-SIG (PCI Special Interest Group) for review. At the beginning, everyone thought it would be named Serial PCI (affected by Serial ATA), but in the end it was officially named PCI Express. Express means high speed and especially fast.

On July 23, 2002, the PCI-SIG officially announced the PCI Express 1.0 specification, and launched the 2.0 specification (Spec 2.0) in early 2007, increasing the transmission rate from 2.5GBit / s of PCI Express 1.1 to 5GBit / s; the mainstream The graphics card interfaces all support PCI-E 2.0.