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Sandy Bridge Folders, how much voltage is your "max" for 24/7 folding?

post #1 of 24
Thread Starter 
It's been quite a way since SB came out, and the question of voltage still lingers (at least for me).

Has anyone been folding over 1.4v for more than a few months, and have there been any reports of degradation?
    
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post #2 of 24
my 2500k folds 24/7 at 4.9 Ghz and 1.49 vcore on a Silver Arrow. Been running a few months like that with no problems.

2600k runs 4.8 Ghz and 1.495 vcore under water. No problems at all.
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post #3 of 24
Thread Starter 
Any signs of degradation yet?
    
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post #4 of 24
My personal limit is 1.4v but I've got no hard info to back that up with.

I've been running this 2600k at 1.375v in BIOS (1.35v under load in CPU-z) at 4.7Ghz and that has been stable for 2-3 weeks of 24/7 folding but then for some reason it wants to BSOD on me now. I don't think it's degraded but it's just weird that the instability creeps up after so long of being good.
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post #5 of 24
Quote:
Originally Posted by BallaTheFeared;15360501 
Any signs of degradation yet?

Initially my 2500k, which I had first, was benchmark and folding stable at 5.0 Ghz. After about 2 or 3 weeks, I got BSOD at 50x multi so I dropped down to 49x and all was well. I did bump up bclk to get back to 5 Ghz and it seemed ok but I didn't run it for long that way cause I figured 4.9 was pretty good enough.

My 2600k is good so far. Stable at 4.8 for a while now. They both fold 24/7, except my sig while gaming.
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post #6 of 24
Juanito, go on Steam. We can talk up our BSOD adventures and offer fixes...
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post #7 of 24
On one of my 2600k's I run 1.45vcore. Was fine for about 2 months then a random blue-screen. Not sure if it's because of degradation or what but I bumped my overclock down one notch and all is well.
post #8 of 24
Quote:
Originally Posted by juano;15360559 
My personal limit is 1.4v but I've got no hard info to back that up with.

I've been running this 2600k at 1.375v in BIOS (1.35v under load in CPU-z) at 4.7Ghz and that has been stable for 2-3 weeks of 24/7 folding but then for some reason it wants to BSOD on me now. I don't think it's degraded but it's just weird that the instability creeps up after so long of being good.

That can happen, real minor instability can take a while to show itself. Tends to be WU dependent too. You think you're stable and then you pick up a different WU and it hammers the chip a little differently.

FWIW (I know it's not SB) I killed a gulftown at 1.55V, although it had been folding, it wasn't doing anything at the time. No degradation signs, just turned it off as normal and then it wouldn't turn on the next day. I honestly think it was a weak chip though because other gulftowns have been fine.
     
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post #9 of 24
Quote:
Originally Posted by juano;15360559 
My personal limit is 1.4v but I've got no hard info to back that up with.

That's my personal limit, too. I was running it at 4.7 GHz @1.392 V, but then I started folding and dropped it to 4.5 GHz @1.380 to keep temps down. It's been completely stable at 4.5. It's cooling off here now, but I don't fell inclined to crank the CPU up again. It's plenty fast where it is.
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post #10 of 24
My 2500k was 5.2 ghz@ 1.48 vcore for 8 months. No signs of degradation. My 2600k is now 5.2Ghz @ 1.44 vcore and everything is swimming just fine.
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