PCI 2.1 Compliant card on PCI 2.2 Slot

[Siddhu]

Hi friends,

I have a query related to the PCI bus. I am ameatuer to this technology and so does require ur assistanace. I have 5 PCI cards that are PCI 2.1 Compliant 32 bit ,5 V power and signaling.  I am searching for some PC that meets the requiremnets for these cards. Most of the PCs that I could find are PCI 2.2 based slots.

My question is

1. Does the cards that are PCI 2.1 compliant work on PCI 2.2?

2. I searched some articles and found that from the PCI 2.3 the support for 5V card is removed. Does this mean PCI 2.2 supports 5V cards.

3. I could also find out thta PCI 2.2 require 3.3V signalling? What does this mean? Does this mean that cards that support 3.3 V signalling and 5V power could only work?

Thanks and Regards,

Sathya

[Brian F.]

Hello Sathya. 

Thank you for posting to the NI Discussion Forums. 

In searching for the answer to your question, I came across a very helpful discussion forum at:

PCI Interface

http://forumz.tomshardware.com/hardware/PCI-ftopict214004.html

Also, information about PCI 2.3 can be found here:

Conventional PCI 2.3

http://www.pcisig.com/specifications/conventional/conventional_pci_23/

Feel free to look at these resources.  I think they will answer all of your questions. 

Have a great day!

Brian F
Applications Engineer
National Instruments