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[OCUK] Sandy Bridge Max Safe Voltages Revealed!

post #1 of 29
Thread Starter 
Hey guys, I just thought I should post this for the good of everyone. I have seen a lot of people running over 1.4v on their sandy bridge processors, and even 1.5v and over. Well, I have bad news for you guys, even though your temps might be fine, your processor might not be in the long run.

Here is a thread from OverclockersUK, and it has the following information:
Quote:
Sandybridge maximum safe voltages

Core Voltage - Not recommended too exceed 1.38v, doing so could kill the CPU, we therefor recommend a range of 1.325-1.350v if overclocking.
Memory Voltage - Intel recommend 1.50v plus/minus 5% which means upto 1.58v is the safe recommended limit. In our testing we have found 1.65v has caused no issues.
BCLK Base Clock - This is strictly a NO, anyone using base clock overclocking could/will cause damange to CPU/Mainboard.
PLL Voltage - Do not exceed 1.9v!!

Source

I didn't see this posted anywhere else, so if it is a repost, let me know.
Edited by Behemoth777 - 1/19/11 at 11:02am
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post #2 of 29
http://www.overclock.net/intel-cpus/911402-sandybridge-take-note.html
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post #3 of 29
Thread Starter 
Quote:

oh, doh.gif

Please delete.
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post #4 of 29
Yeah, those voltage specifications were mostly for marketing it seems.
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post #5 of 29
Thread Starter 
Quote:
Originally Posted by LethalRise750;12067768 
Yeah, those voltage specifications were mostly for marketing it seems.

Hmm, I somewhat doubt it was for marketing though, I mean, sure they might sell more processors, but just think of all the rma's they are going to have to do because people are frying the chips. That will surely cost them more money.
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post #6 of 29
Quote:
Originally Posted by Behemoth777;12067813 
Hmm, I somewhat doubt it was for marketing though, I mean, sure they might sell more processors, but just think of all the rma's they are going to have to do because people are frying the chips. That will surely cost them more money.

It originally came from a prebuilt custom PC company. Said something along the lines of "If you buy a pre-overclocked PC with Sandybridge, verify the voltages are below 1.35v especially if they claim 4.6GHz or more. We guarantee our overclocks to be within spec."
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post #7 of 29
there is another discussion on this already. Intel list max safe at 1.52V if you burn your chip blame intel. I doubt a billion dollar company would list 1.52V for no reason, and their engineers have been testing for a while, longer than those bs 1.3v people. Even sin can confirm that he was beening running 1.5V+ for over a month now.

read this
Edited by puffsNasco - 1/19/11 at 11:36am
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post #8 of 29
Quote:
Originally Posted by puffsNasco;12068090 
there is another discussion on this already. Intel list max safe at 1.52V if you burn your chip blame intel. I doubt a billion dollar company would list 1.52V for no reason, and their engineers have been testing for a while, longer than those bs 1.3v people. Even sin can confirm that he was beening running 1.5V+ for over a month now.

read this

I agree with this! Along with idiots thinking 72.6C is the maximum core/cpu temperature.
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post #9 of 29
well i believe in 72.6 xD but that is tcase not max temp
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post #10 of 29
Yea i'm going with Intel. It states minimum and maximum voltages in their datasheet.

Granted MAX voltage is most likely not 'safe' voltage, but it's still the max considered for the product.

0.025 to 1.52v from memory.
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