PCI

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Revision as of 15:34, 26 February 2010 by Regan russell (Talk | contribs) (Shoehorn)

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General information

The Peripheral Component Interconnect, or PCI Standard (in practice almost always shortened to PCI), specifies a computer bus for attaching peripheral devices to a computer motherboard. These devices can take any one of the following forms:

  • An integrated circuit fitted onto the motherboard itself, called a planar device in the PCI specification.
  • An expansion card that fits into a socket.

The PCI bus is common in modern PCs, where it has displaced ISA and VESA Local Bus as the standard expansion bus, but it also appears in many other computer types. The bus is being succeeded by PCI Express, which launched in 2004 and offers much higher bandwidth. As of 2007 the PCI standard is still used by many legacy and new devices that do not require the higher bandwidth of PCI-E. New computers are also still provided with ample PCI slots.

The PCI specification covers the physical size of the bus (including wire spacing), electrical characteristics, bus timing, and protocols. The specification can be purchased from the PCI Special Interest Group (PCI-SIG).

Shoehorn

Single PCI slot <-> XIO

OK. THe below image is a cradle for Origin/Onyx 3x0/3x00 systems.

ShoeHorn.gif

Octane Shoehorns look similar with an XIO connector on the end.

Shoebox

3 PCI slots into a XIO bridge.

The Origin 2000 and Oynx2 ones are straight up and down with the screws on the top.

The Octane ones are sideways with the screws on one side.

The orientation of the compression connectors are also incompatible between the two shoeboxes.

Shoebox.gif

PCI in IRIX hinv

A machine with a lot of PCI slots:

 PCI Adapter ID (vendor 0x1077, device 0x2200) PCI slot 2
 PCI Adapter ID (vendor 0x1077, device 0x2200) PCI slot 2
 PCI Adapter ID (vendor 0x1077, device 0x2200) PCI slot 1
 PCI Adapter ID (vendor 0x1077, device 0x2300) PCI slot 2
 PCI Adapter ID (vendor 0x1077, device 0x2200) PCI slot 1
 PCI Adapter ID (vendor 0x10a9, device 0x0003) PCI slot 4
 PCI Adapter ID (vendor 0x11c1, device 0x5802) PCI slot 5
 PCI Adapter ID (vendor 0x104c, device 0x8009) PCI slot 6
 PCI Adapter ID (vendor 0x1077, device 0x2200) PCI slot 1
 PCI Adapter ID (vendor 0x1077, device 0x2200) PCI slot 1
 PCI Adapter ID (vendor 0x1077, device 0x2200) PCI slot 2
 PCI Adapter ID (vendor 0x1077, device 0x2200) PCI slot 1
 PCI Adapter ID (vendor 0x1077, device 0x2200) PCI slot 2
 PCI Adapter ID (vendor 0x1077, device 0x2200) PCI slot 1
 PCI Adapter ID (vendor 0x1077, device 0x2200) PCI slot 2



There is a PCI database at: http://www.pcidatabase.com/

The first looks like a SCSI controller:

PCI DB.png

Qlogic makes SCSI controllers. This machine probably has a lot of disk attached.

Known working PCI cards with IRIX (A visual database)

PCI serial.jpg

Radical audio.jpg

SGI Gigabit.jpg

Mellanox.jpg

Further reading

Wikipedia