PCI slot types reference and specifications

[Tiziano Contorno _]

Hi, I would like to make some light about PCI slots kind, PCI X, 64 and 32 bit, 3.3v and 5v, their size, their specs, which kind are typical where (servers and workstations).

Thank you!
Regards.

[Steven E. Protter]

Shalom Vanadio,

Exact specfications for all workstations are at http://docs.hp.com

If you'd posted the machine type I could have been more specific.

SEP

[Tiziano Contorno _]

Hi Steven I'm looking for a link to something that explain the _general_ specifications of these kind of buses. No relation to which server / workstation they are in.

Something like: PCI X slot is long x cm... cards have n tabs, bandwith is ... etc.

Thank you.

[Alzhy · Accepted solution]

Something like this?

http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?lang=en&cc=us&objectID=tis01604&jumpid=reg_R1002_USEN

Still looking for a document for PARISC/Itanium HP-UX Capable servers.. there used to be one. Perhaps it is described along with the server docus -- along with how many PCI, PCI-X capable slots each has.

[Kent Ostby]

By way of google, there is this:

http://www.interfacebus.com/Design_Connector_PCI_X.html

[Tiziano Contorno _]

From the HP doc posted above:
"You can use a 32-bit card in a 64-bit slot and vice versa"

Good news!

So the 64/32 auto switching affects only the bandwith at wich the card will operate?

Thank you!

[Alzhy]

Yes.

The newer PCI-e (PCI Express as opposed to PCI-X) offers what's called rails.. to denote max speed: x1, x4, x8 and x16 -- I do not know if eventualy PCI-e slots will in the future be adopted on the enterprise servers...