PCI-X

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PCI-X

(Peripheral Component Interconnect eXtended) A 64-bit bus technology that is backward compatible with PCI and used in servers for high-speed networking and fast hard drives. PCI cards can be plugged into a PCI-X slot, and PCI-X cards can be plugged into a 32-bit PCI slot, even allowing part of the edge connector to hang over the slot, providing nothing on the motherboard is in its way.

Introduced in 1999 and developed by IBM, HP and Compaq, PCI-X offered more speed than PCI and steadily increased to more than 30 times that of the original PCI bus. The peak bandwidth of the PCI-X bus ranged from 133 to 4262 MBytes/sec. Although a greatly enhanced Version 2.0 was introduced in 2002, it was not widely used, and PCI-X in all its versions has been superseded by PCI Express (PCIe). For data rate comparisons of all PCI technologies, see PCI-SIG.

Some Name Confusion
PCI-X is also abbreviated PCX, which sounds like shorthand for "PCI Express." However, the official abbreviation of PCI Express is "PCIe." See PCI Express.


PCI-X Slots
PCI-X motherboards came with a mix of PCI and PCI-X buses. The long green slots are PCI-X, which accepted PCI-X and PCI cards. (Image courtesy of Giga-byte Technology Company Ltd., www.giga-byte.com)
References in periodicals archive ?
By having PCIX co-located with the established HBA Global Expo, attendees will now be immersed in the entire product development process including the latest trends in ingredients and formulation," said Jack Gonzalez, show director of HBA Global Expo and PCIX.
HiNT has world leading PCI-PCI and PCIX-PCIX bridging technologies and builds this world's first continuous frequency varying PCIX ASIC Development board designed specifically for design verification of PCIX ASIC devices.
a) The PCIX board, a member in the HAPS family, connects a HAPS system with a PCI/PCI-X bus.
In anticipation of the increasing rate of market migration from AGP2X to 4X for enhanced video/graphics and 3D capabilities, the Articia P chipset integrates a multiple processor interface and three PCI options -- AGP4X, PCIX, and PCI.
The analog and mixed-signal portfolio initially includes a selection of multiplier and deskew Phase Locked Loops (PLLs) as well as a full range of specialty I/Os supporting leading interconnect standards such as HSTL, LVDS, PCIX, PECL, SSTL, and USB.
In anticipation of the increasing rate of market migration from AGP2X to 4X for enhanced video/graphics and 3D capabilities, the Articia P chipset integrates a multiple processor interface and three PCI options- AGP4X, PCIX, and PCI to target a multitude of high-end, next-generation industrial control, networking, entertainment, computer, Internet and wireless communication applications.
The new board, called PCIX, will be shown for the first time at the electronicaUSA Conference in San Francisco, Calif.
5 inch hard disk drives; dual 1 GB Ethernet connected to two switch blades; video controllers with VGA and SVGA resolutions and support for USB CD-ROM and FDD; plus one low-profile PCIx slot for various add-on cards options such as FCAL, iSCSI, and gigabit Ethernet.
In addition, National is using several of Verisity's e Verification Components (eVCs) for standard interfaces such as AMBA AHB, USB and PCIX.