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[Intel] X79 Express Chipset Transitioning from C-0 to C-1 Stepping  

post #1 of 27
Thread Starter 
According to Intel's Product Change Notification 111286-00, the X79 Express Chipset will be transitioning to a new C-1 stepping in April 2012. The document suggests that the changes implemented in the C-1 stepping will be detailed in the Intel X79 Express Chipset Component Datasheet, but as of today that document has not yet been updated.
Quote:
Description of Change to the Customer:
The Intel® X79 Express Chipset is converting from the C-0 stepping to the C-1 stepping. Please plan to validate the C-1 stepping of the Intel® X79 Express Chipset. For technical details of the Intel® X79 Express Chipset, please refer to the component Data Sheet and latest Specification Update available on CDI and/or intel.com product support web site.

Customer Impact of Change and Recommended Action:
The C-0 stepping of the Intel® X79 Express Chipset is pin-to-pin compatible with the C-1 stepping and does not require any motherboard modifications. Design changes, however, have been made to the IOH component of the Intel® X79 Express Chipset and will require customers to perform re-qualification. Please see the Intel® X79 Express Chipset component Data Sheet and latest Specification Update and the Intel® X79 Express Chipset BIOS Specification Update for any BIOS changes available for the C-1 stepping.

Source

I also extend due credit to a post by nightmare99 at overclockers.co.uk.
post #2 of 27
I don't suppose this will bring back all the crap they cut from X79 just prior to release? Probably not.
post #3 of 27
Fail to see any changes listed?
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post #4 of 27
Thread Starter 
Quote:
Originally Posted by RussianJ View Post

Fail to see any changes listed?

Indeed, to see what the changes are we'll have to wait for the other documents to be updated.
post #5 of 27
What all did they cut that might make it into a revision? All those SATA ports and the storage up-link to the CPU right? Hopefully they release what they are going to change but i wouldn't hold my breath since i'd expect info to come out regarding the change maybe in March at the earliest.
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post #6 of 27
This is mainly to add the VT-d which was bugged in the released CPUs.
Its old news, and was out a week or so after the release of the SB-E first CPUs.
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post #7 of 27
if this is what i am hearing about it will slowly replace all current boards in product as it does have a major change, but nothing affecting performance.

You wont see boards with C1 if that is really what it is called, i was under the impression it wasn't called X79 but whatever. Um but in a few months, right around ivy release.
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post #8 of 27
Quote:
Originally Posted by Defoler View Post

This is mainly to add the VT-d which was bugged in the released CPUs.
Its old news, and was out a week or so after the release of the SB-E first CPUs.

This is about a revision to the X79 chipset, not that actual processors which have transitioned to c2 and are expected to be on shelves soon.
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post #9 of 27
I'm sure it's not a coincidence that the C600 and related server chipsets will be out in that same basic time frame.
    
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post #10 of 27
Quote:
Originally Posted by Defoler View Post

This is mainly to add the VT-d which was bugged in the released CPUs.
Its old news, and was out a week or so after the release of the SB-E first CPUs.

This is for the chipset, not the CPU itself. The chipset is already VT-d compatible, however C1 SB-E chips are not.

On another note, would love to see miniSAS on these boards biggrin.gif
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Overclock.net › Forums › Industry News › Hardware News › [Intel] X79 Express Chipset Transitioning from C-0 to C-1 Stepping