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What can the Max Voltage be?


saagar

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I have a Venice 3200+ E3 stepping. I want to know what the maximum voltage this processor can take and if taking up the voltage can destroy my cpu's life. And I wouldn't want the answer based on cooling. Would 1.52v kill my cpu in the future.

I'm running off of stock air. The highest temp I've hit is 47C (CPU).

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Take the recommended voltage for your chip x 10%. Anything up to that is considered safe. A lot of folks go up to 20% without problems but the long term affects are unknown. Watch your temps...stay under 50c if you can.

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hey im pumping mine at 1.6v.... go figure...find the voltage chart and slowly increase the voltage if you want it to go faster...

My question is if cranking the voltage that high will cause my cpu to die in the near future.

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If your cooling is good then no it won't die anytime soon.

I think for Venice cores, people stick to 1.6v on air and 1.65v on water.

Me? I keep it on 1.58 as it requires me another 0.1v to get to 2700mhz, which just doesn't make sense. So I don't bother past 2.6ghz now.

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  • 3 weeks later...
Guest Lusonico

Hi, I too have venice 3000+ running at 278*9. I got prime2004 to fail after 4 hours and 20 minutes with Vid Control 1.500v + 104%, so i adjusted to 1.525v +104% ,wich should give 1.586v, but in BIOS it only reads 1.56v and in CPU-Z it reads 1.53v. My temperatures during stress prime never got above 41ºC. My only concern is the life expectancy of the CPU, i would be happy if i knew for sure that it would last 2-3 years, time where i think i could upgrade to dual-core. Can anyone say it has been running a venice above 1.55v for more than a year or so?

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I have a Venice 3200+ E3 stepping. I want to know what the maximum voltage this processor can take

 

I think I saw someone use 1.9v on phase change...

 

Would 1.52v kill my cpu in the future.

 

Definitely yes, but nobody could tell you when :). It's a matter of probability.

It's like you go to a doctor and ask him what your life expectancy is. He probably responds something like 70-80 years and if you drunk and smoke your life may be shorter with 10 years. You could die in the next week because you have a congenital disease (even if you don't smoke and drunk) or you could live for 100 years smoking and drinking a lot.

Regarding your question, the increase in voltage will reduce your CPU mean time to failure.

"Mean Time to Failure (MTTF) is a common measure of reliability. It is desirable to have a single mathematical model that represents the failure rate of devices over their entire lifetime l(t) generally varies as a function of time as shown"

fig014kt.gif

 

There's a linear dependence on mean-time to fail (MTTF) on a CMOS part to temperature, there's a square dependence on voltage to MTTF

And finally this is an expert point of view (in extenso here - his pseudonym is pm):

"As far as risk vs. upgrade cycles, my personal belief is that people should do what they want with the processor that they bought. My only reason for posting was to explain reliability failure mechanisms, not to preach about what people should be doing with their equipment. If someone wants to run at 1.8V, on their processor that was designed to run at 1.2V, then I have no comment... as long as they don't start telling everyone else that this is a great thing to do. The only time that I start to be concerned is when people start posting "recommend voltages" - like "You can do 1.6V no problem. My brother's friend has been running his computer like that for 3 weeks and it's awesome 'cause he can get 12000 3DMarks with it that way". There's a reason why, in this hypercompetitive industry, manufacturers don't crank their voltages way up. If it was safe to do, then Intel and AMD and ATI and nVidia and everyone else would be doing it too."

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Guest Lusonico

I've changed the LDT voltage from 1.2v to 1.5v and dropped the cpu voltage from 1.525v +104% to 1.50v +104% , wich reads in the BIOS as 1.52v . Now my CPU made it to prime2004 during 7 hours, in the stressCPU test.

 

I guess there is good chances the CPU could last 4 years with this voltage, right?

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