1090T 6th core always fails during all OC.

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thedude300

thedude300

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Jul 10, 2011
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As the title as said. During almost any over clock over 3.812ghz my sixth core has always failed. I have tried lower RAM freq and uping and lower my voltage. It always gives me the same result either I get a hardware failure from the sixth core or I get a "Rounding 0.5 expected 0.4" which I have gotten when lowering voltages on the other cores but as I raise it this core does it.


Should I just disable the core or is there a different problem?
 
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We're in the same boat as I've always read that everybody else's chips clock better than my own. I gave up trying to get the same results as everyone else as the heat generated and stability issues are hardly worth it, from my own perspective.

I jumped on the 1090T as soon as it was commercially available, so it could be that the folks hitting higher speeds are a) using better air coolers, and / or b) using later revisions that scale better. From my experience, 55°C is getting pretty warm for an AMD chip, not that they can't handle it, but they're close to their limits at that point, and it could be that your 6th core is not the same temp as the rest of the die and hitting just over it's thermal ceiling.
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bigpinkdragon286

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Oct 3, 2012
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Your chip isn't designed to run at that speed, so I wouldn't consider the behavior of your sixth core an actual problem. You can disable the core which is causing you troubles, or run the chip as it was designed, with the core enabled. You don't always win when you play the silicon lottery. :)

Have you kept a close watch on your temperatures when overclocking? Maybe you're just getting too hot, and #6 is not dealing well with the heat?

My 1090T doesn't overclock well either, if it makes you feel any better.
 
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thedude300

thedude300

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Jul 10, 2011
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I don't understand it though. A see hundreds of threads of people successfully getting to 4ghz if not 4.2ghz just on air alone. My chip never goes past 55c after 9 hours but the sixth core fails within 15 mins while the rest move on.
 
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bigpinkdragon286

Splendid
Oct 3, 2012
4,648
35
28,590
We're in the same boat as I've always read that everybody else's chips clock better than my own. I gave up trying to get the same results as everyone else as the heat generated and stability issues are hardly worth it, from my own perspective.

I jumped on the 1090T as soon as it was commercially available, so it could be that the folks hitting higher speeds are a) using better air coolers, and / or b) using later revisions that scale better. From my experience, 55°C is getting pretty warm for an AMD chip, not that they can't handle it, but they're close to their limits at that point, and it could be that your 6th core is not the same temp as the rest of the die and hitting just over it's thermal ceiling.
 
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