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
<a href="http://forumz.tomshardware.com/hardware/PCI-ftopict214004.html" target="_blank">http://forumz.tomshardware.com/hardware/PCI-ftopict214004.html</a>
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Also, information about PCI 2.3 can be found here:
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Conventional PCI 2.3
<a href="http://www.pcisig.com/specifications/conventional/conventional_pci_23/" target="_blank">http://www.pcisig.com/specifications/conventional/conventional_pci_23/</a>
&nbsp;
Feel free to look at these resources.&nbsp; I think they will answer all of your questions.&nbsp;
&nbsp;
Have a great day!
&nbsp;
Brian FApplications EngineerNational Instruments