What is PCI Express?
PCI Express stands for Peripheral Component Interconnect Express (PCI-E). PCI Express is a new computer format for motherboards allowing for expansion. It was introduced to phase out PCI expansion and the AGP graphics interface card. PCI Express makes a computer work much faster and largely improves the graphics performance of the machine. Traditional PCI has several limitations. It has a fixed width of 32 bps and can handle only five devices at a time. A higher bus speed will cause the device to experience problems. In the 1990s, these devices have become faster and more powerful. The bus graphics evolved from PCI to AGP. The first of this kind were the AGP2X and AGP4X. Today’s AGP8X operates at approximately 2 Gbps. However, the demands for AGP bus development are still putting tremendous pressure on the motherboard. The introduction of the PCI Express protocol came as an improvement of the traditional PCI and AGP. PCI Express operates like a network and not a bus (see text covered b
PCI (Peripheral Component Interconnect) Express is a scalable I/O (Input/Output) serial bus technology set to replace parallel PCI bus which came standard on motherboards manufactured from the early 1990s through 2004. In the latter part of 2004 PCI Express slots began appearing alongside standard slots, starting a gradual transition. Intel first introduced PCI technology in 1991 to replace the ISA/EISA bus. It was later taken over by The PCI Special Interest Group (PCI-SIG) who revised the protocol in 1993. Although robust enough to last over a decade, total available bandwidth of just 133 MB/ps shared between slots meant that high demand devices quickly saturated resources. In 1997 this problem was partially alleviated by implementation of a separate AGP slot (Accelerated Graphics Port) with dedicated bandwidth. Other steps were also taken at the chip level along with integrated components, which helped to extend PCI’s viability. However, with the advent of SATA, RAID, Gigabyte Ether
A Layman’s guide to high speed PCI-E technologyby Lee Penrod You are encouraged to make links to this article from your website and tell your friends The following article is based on years of experience. It is provided as a free service to our customers and visitors. However, Directron.com is not responsible for any damage as a result of following any of this advice. Copying the contents for commercial purposes is strictly prohibited without Directron.com’s written consent. However, you are welcome to distribute these computer support tips free to your friends and associates as long as it’s not for commercial purposes and you acknowledge the source. You are permitted and encouraged to create links to this page from your own web site. Introduction So you want to know about PCI Express? PCI Express is a recent feature addition to many new motherboards. PCI Express support can have a big impact on your hardware choices both now and in the future. This article will explain the topic in pl
