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[VR-Zone] Sandy Bridge-E should hit C2 stepping after launch

post #1 of 24
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We knew that Intel's Sandy Bridge-E chips were big and complicated to make, but what we didn't expect was that Intel was going to continuously keep running into problems. The current C1 stepping is apparently having problems with VT-d, not a major issue for most consumers' maybe, but it's a huge problem when it comes to Xeon chips and as such Intel is working on the C2 stepping to fix this "errata".
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post #2 of 24
Sort of on topic:
Why do mobos have the ability to disable VT-d on i7 processors? Just because they can? It's the only feature which is like a compatibility flag and I can't fathom why you'd disable it ever, it could only make some apps not work or work slower if they ever tried to use it...
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post #3 of 24
Can somebody explain stepping for those of us who are laymen?
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post #4 of 24
Quote:
Originally Posted by Doodlebro View Post
Can somebody explain stepping for those of us who are laymen?
c1 dont work right and c2 will
post #5 of 24
Quote:
Originally Posted by Doodlebro View Post
Can somebody explain stepping for those of us who are laymen?
Intel has a layman description of it on their site:

Quote:
The first version of a new microprocessor product is the A-0 core step. Later, as improvements are made to the product for functional fixes or manufacturing improvements, the core stepping number is incremented. Generally speaking, minor changes result in an increased number (i.e. A-3 to A-4), while more complex changes result in the letter being changed (i.e. A-3 to B-0). Note that a B-0 core stepping is more recent than an A-4 core stepping.
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post #6 of 24
Quote:
Originally Posted by redhat_ownage View Post
c1 dont work right and c2 will
Haha no, that point was obvious

Quote:
Originally Posted by BizzareRide View Post
Intel has a layman description of it on their site:

Source
That's more what I meant. Thanks!
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post #7 of 24
Ah who cares about vt-d, well ok, some of us do, but will this stepping give better overclocks, that's what I want to know!
     
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post #8 of 24
post #9 of 24
Quote:
Originally Posted by nickbaldwin86 View Post
Already posted in the future? Your link is 42 minutes old, this thread is two hours old.
    
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post #10 of 24
Quote:
Originally Posted by heraisu View Post
Sort of on topic:
Why do mobos have the ability to disable VT-d on i7 processors? Just because they can? It's the only feature which is like a compatibility flag and I can't fathom why you'd disable it ever, it could only make some apps not work or work slower if they ever tried to use it...
You answered your own question.

Quote:
Originally Posted by redhat_ownage View Post
c1 dont work right and c2 will
Not really. Nearly all CPUs have a giant list of errata associated with them.

You can rest assured that C2 will be full of minor bugs as well.

Quote:
Originally Posted by stren View Post
Ah who cares about vt-d, well ok, some of us do, but will this stepping give better overclocks, that's what I want to know!
Newer stepping often do, but there is no way to know until it's released, and thats a way off as C1 just entered production.
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