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is 1.522 VCore safe for 24/7 on i5 2500k? 1.488 on load? - Page 8

post #71 of 114
Quote:
Originally Posted by pent View Post

No that is not safe and will degrade your chip pretty badly especially on air. 1.488 and 1.52 are not safe at all if you don't want to risk degrading your chip. Keep in mind the Intel max is the VID not the actual vcore. these are 32 NM chips and based on previous chips like gulftown the max safe vcore was 1.37. I would not push 1.40 on air and 1.45 on water. Regardless of temps at that high of a voltage the 32 NM Silicon simple can't take that kind of wear and tear 24/7. Its up to you honestly but im defiantly gonna strongly advise against that high of a Vcore. If you wanna stay the safest stay in the 1.3-1.39 area on air cooling. Gotta keep in mind that this is a 32 NM chip and it cant take as much of a beating as the 65 NM or even 45 NM chips. But yeah way to high and expect some degrading in the near future if you remain that that voltage all the time. Degrading of the chip can occur in a matter of months or weeks. Who knows its all unique. Anyways if your definate on staying at that voltage then atleast make sure the chip is rock solid stable. Run a prime95 12 hour blend, Also intel burntest x50 passes on standard (standard only takes about 8 secs a test) And then run Intel burn test on maximum maybe 5-10 times just to make sure. I also personally run it on very high then 12 times before i call the chip case closed stable. The IBT test is very short but also very intense and will give you your max thermal and wattage and Vdroop, but prime95 is very important also as it uses different FFT Lengths and different tests. Both of them together are a good way to analyze a cpu stability. But on Air that voltage is defiantly not safe by my standards, Even on water i wouldn't push that much. But its up to you, Its your chip after all not mine. My rule of thumb for 24/7 air temps i like to stay in the 1.3-1.39 range for 24/7 OC's as the risk of degrading the chip aslong as your temps are good in the 1.3 range is almost non existant. but nothing is 100 percent. Maybe pushing 1.4 a tad on air is fine also aslong as temps are good. But upper 1.4's and 1.5 is the highway to the danger zone smile.gif

Do you have any proof.gif of anything you say?
I have yet too see proof.gif of chip degridation on 1.5 volts even 1.525
post #72 of 114
Probably cause of this?

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post #73 of 114
Quote:
Originally Posted by solar0987 View Post

Do you have any proof.gif of anything you say?
I have yet too see proof.gif of chip degridation on 1.5 volts even 1.525

Im sure if i digged around the net i could find something but again i like to be on the safe side and its common sense that a 32 NM Chip is not supposed to be pushing that kind of a VCORE. If 65 NM chips and 45 NM chips could not handle this then a 32 NM just simply can't handle that kind of a voltage for 24/7 use and not have the risk of possible degrading in the near future which could be days,months, weeks or even a year. The silicon is not as large. Yes you can run at that voltage 24/7 with months without issues like some. Or you could run weeks before you see damage, Even days. Its really like throwing dice on a table and guessing the number. But just common knowledge should be enough to easily point out that running a sandy chip at 1.522 is not safe. Unless intel invented magical silicon then i highly doubt that is safe. And if you look on the net various people have experimented with these sandy chips and found a stable VCORE as intel does not give us an actual VCORE that is 24/7 safe, Just a VID. And judging past chips vcore's i can see that none of them can safely handle that sort of vcore.

1) 32nm Gulftown CPUs = 1.375V
2) 45nm Nehalem CPUs = 1.375V
3) 45nm Lynnfield CPUs = 1.400V
4) 45nm Wolfdale CPUs = 1.3625V
5) 65nm Kentsfield CPUs = 1.500V
6) 65nm Conroe CPUs = 1.500V


Sandy is not a 65 NM chip and Gulftown is the closest comparison. Im sure alot of sandys have been fried with people pushing 1.5 24/7 and im sure some are stable but in computer terms that voltage just is not safe. And people have tested and messed with alot of CPU's to comeup with sandy safe voltages. the 1.52 Max is the VID! not the vcore. there is a difference. Some have ran at those high voltages and been safe but personaly id like to be safe and use common knowledge about 32 NM architecture and use a safe voltage that has data from people who tested these chips to get the safe VCORE range and the obvious fact that this is a 32 NM Chip.
Edited by pent - 12/12/11 at 1:32am
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post #74 of 114
@pent:
I've been running 1.49v since March on mine, folding nearly 24/7. I have experienced NO ISSUES at all. Just because you say that it'll degrade doesn't mean that's the case. Temperatures will affect a chip degrading faster than voltage will. I'll happily give my chip up to 1.50v 24/7 as long as temperatures are fine, which they are.

And your little chart is way off. 65nm could take up to 1.60v. I've seen 45nm Nehalems that have been ran at 1.45v since release and they're still just as strong today.

It all boils down to what the user is comfortable pushing through their chip.
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post #75 of 114
I don't get anything solid from those numbers...

Sandy doesn't really share many traits with golftown, why would we use it's voltage when so many of it's other characteristics don't match up, such as cold bugs and power draw?
    
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post #76 of 114
Quote:
Originally Posted by pioneerisloud View Post

@pent:
I've been running 1.49v since March on mine, folding nearly 24/7. I have experienced NO ISSUES at all. Just because you say that it'll degrade doesn't mean that's the case. Temperatures will affect a chip degrading faster than voltage will. I'll happily give my chip up to 1.50v 24/7 as long as temperatures are fine, which they are.
And your little chart is way off. 65nm could take up to 1.60v. I've seen 45nm Nehalems that have been ran at 1.45v since release and they're still just as strong today.
It all boils down to what the user is comfortable pushing through their chip.

Yeah it all boils down to what your safe with. Like i said its your chip and you can do as you please. But im just stating my safe VCORE that i like to standby based on my research and knowledge. Im sure alot of people can run 1.49 24/7 and have no issues and im sure some have degraded the chip. its all a matter of luck and the fact that all chips are unique. Every chip is unique like a snowflake. And those are just the Safe 24/7 VCORE's im sure many can push above that and remain fine. Its all a matter of luck and how your chip is.
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post #77 of 114
Quote:
Originally Posted by BallaTheFeared View Post

I don't get anything solid from those numbers...
Sandy doesn't really share many traits with golftown, why would we use it's voltage when so many of it's other characteristics don't match up, such as cold bugs and power draw?

Just use that as a rough ruler to create an accurate response in VCORE. That isn't a 100 percent direct comparision to sandy voltage. im just seeing the pattern in safe VCORE's to show that sandy can have issues at 1.52+ But again its all up to the user. Its your chip like i said. Thats just my advice.
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post #78 of 114
I dunno. I haven't seen anything to suggest running over 1.45v is killing SB chips or causing huge degradation.

I was the first person on OCN to join the 5GHz club for SB back in January, I've been running my chip just as hard ever since without issues.
    
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post #79 of 114
Quote:
Originally Posted by BallaTheFeared View Post

I dunno. I haven't seen anything to suggest running over 1.45v is killing SB chips or causing huge degradation.

I was the first person on OCN to join the 5GHz club for SB back in January, I've been running my chip just as hard ever since without issues.

I've prime tested mine for 12 hours at 1.54v full load (1.58v light load), and it lived just fine through that. Just as rock solid as she's ever been. I definitely wouldn't RECOMMEND THAT high of a voltage though. Up to 1.50v ish is safe as far as I'm concerned though.
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post #80 of 114
Quote:
Originally Posted by BallaTheFeared View Post

I dunno. I haven't seen anything to suggest running over 1.45v is killing SB chips or causing huge degradation.
I was the first person on OCN to join the 5GHz club for SB back in January, I've been running my chip just as hard ever since without issues.

Like i said all chips are unique and i like to stay on the safer side with VCORE. That's just my rule of thumb for safe voltages. 1.45 wouldn't kill a chip but MIGHT cause some degrading. Again this is my opinion and im more on the safer side. If the user is comfortable with his VCORE and his gut feeling says its fine then by all means the user can do as he pleases. some people i know don't even push 1.35 to stay safe lol. All depends on what the user is comfortable with and if the user is willing to take a gamble, as stated earlier in the moderators post above. And all chips are unique also in how they take vcore. All depends on the unique chip and the user.
Edited by pent - 12/12/11 at 1:54am
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