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Old August 11, 2009, 09:13 PM
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Hello, I am wondering if any wrong can happen if I undervolt my CPU ?

Also, in theory, doing so would lower my temps ? Would it do anything else positive ?

I got my CPU to run at 1.244V and it was running fine in day to day tasks as well as running Prime 95. I haven't tried going lower yet.

I realize normally I should do the opposite to get the most out of my computer, but I am not too rushed on running my computer overclocked while I am in an oven.

Actually, I am running my GPU way underclocked while I am not gaming, it helps reduce noise and temperature quite a bit.
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Old August 11, 2009, 09:15 PM
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Quote:
Originally Posted by Kilauea View Post
Hello, I am wondering if any wrong can happen if I undervolt my CPU ?

Also, in theory, doing so would lower my temps ? Would it do anything else positive ?

I got my CPU to run at 1.244V and it was running fine in day to day tasks as well as running Prime 95. I haven't tried going lower yet.

I realize normally I should do the opposite to get the most out of my computer, but I am not too rushed on running my computer overclocked while I am in an oven.

Actually, I am running my GPU way underclocked while I am not gaming, it helps reduce noise and temperature quite a bit.
Lower volts will generally mean lower temps.

But make sure you do a stability test because sometimes it may not have enough juice.
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Old August 11, 2009, 09:17 PM
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It will also lower your power usage, in addition to heat output. There is NOTHING wrong with undervolting, and in fact a lot of people do it. It will not damage your CPU in system in any way.

Worse that will happen is your system will become unstable, so be sure to run some stability tests.
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Old August 11, 2009, 09:18 PM
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Yes, undervolting will reduce your temperatures, but be mindful. Whether you're running AMD or Intel, when the processor goes into CnQ/EIST thats the minimum amount of voltage required to keep the processor stable with a Lower clock speed. If you choose to disable CnQ/EIST and then undervolt, shooting for that same voltage will probably be impossible, since youre not reducing your multiplier at the same time. I'd suggest, if you really want to underclock, droping your voltages slowly and checking full load temperatures as you go with stress testing. Then, if you realize that you're lowering the voltage but not loosing very much in load temperatures, stop. Just my opinion, hehe.
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Old August 11, 2009, 09:30 PM
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Alright thanks, I will surely run some more in depth tests with that... I didn't really run some thorough tests when I undervolted, just Prime95 for 20mins it was all fine. I was more surprised than anything that I could run it like that.

And yes I am running CnQ which is great. If only it would work too when overclocked, I could overclock the CPU and keep it like that in the summer.
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Old August 11, 2009, 09:46 PM
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I noticed the past couple of days dropping the volts on my i7 did not really affect temps at all, so I left it as-is.
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Old August 12, 2009, 12:45 PM
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Hi,i did a bit of xspeariamenting with dropin the cpu volts ,and my idle temps were the same but my load temps were. after 1 hr pass of occt an average of=

At 436x9 1.31v real 45c/39c.

At 355x9 1.10v real 38c/32c

Not sure of the ambeint temps when these runs were made,but i still have the occt grafs in my files.
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