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How to use voltages to Overclock, Help!

post #1 of 10
Thread Starter 
Hello all,

I wanted to know what is volt modding? How does it work, what do you do to successfully volt mod without frying, what are the consequences of going to high. What advantage does it have over just increasing the multiplier? ow much is too much. Etc any and all things you can tell me about it would be great.

Because i want to know as much as possible before doing so as i dont have the money to replace my system if i fail.

Does it only apply to the cpu? If you need any specs let me know.
    
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post #2 of 10
Volt modding usually refers to video cards. Increasing volts to increase clocks. Your CPU should have some voltage regulation values in the BIOS. So no modding required. Same principle though. You increase voltages to increase the juice going to CPU/NB/SB to give it more potential to overclock higher. Think of it in terms of a car. Your car has 200 horsepower. You want it to go faster. You have to increase fuel/air to increase horsepower. Or chip it, lol.

Too much voltage can harm your computer, but there are many guides on how to do this without harming your CPU. The main guideline for higher volts will be your cooling/temps. If you are on air cooling and with minimal voltage increases your temps are sitting at the thermal threshold for your CPU than obviously you need to lower volts. If you are on Phase, than you can go higher with the volts.

No matter if you use your multiplier or FSB you may have to increase voltages,. Your asking your CPU to do something that it wasn't designed to do stable or normally. It will need more juice to stabilize it for those higher clocks.
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post #3 of 10
Thread Starter 
Ok so increased volts means more stable oc but higher temps?
    
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post #4 of 10
Can anyone explain from an electrical engineering standpoint why increasing the voltage allows for higher frequency? Is it reducing the amount of electromigration?
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post #5 of 10
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I can deal with higher temps. As i am going to add aftermarket cooling soon to out do my stock.
    
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post #6 of 10
Because, if you run a CPU faster than it is designed to go, it will require more power than running it normally, just as if you run it slower than what its designed to go, you could get away with using less power. Dont worry about Volt modding if your not overclocking/volting graphics cards.
post #7 of 10
Oh and, overvolting reduces system life. Overclocking is said to do it but it doesnt, the only thing that shortens system life is too much heat and overvolting (which is usually required to get higher overclocks). Also, overclocking only provides minimal performance in day to day activities, unless your hardcore gaming/running benchmarks/video editing, you want notice a difference.
post #8 of 10
Thread Starter 
Quote:
Originally Posted by Klinkey View Post
Oh and, overvolting reduces system life. Overclocking is said to do it but it doesnt, the only thing that shortens system life is too much heat and overvolting (which is usually required to get higher overclocks). Also, overclocking only provides minimal performance in day to day activities, unless your hardcore gaming/running benchmarks/video editing, you want notice a difference.
Thanks i Overclocked my 9400gt from 566 core to 702 core and from 266 to 400 mem and if i go much higher it starts to become unstable my max load tamp reaches 77C on the GPU under 100 load so its all good. So thats why i was interested in increaseing the volts by like a tiny tiny bit just to increase stability at that speed.

My cpu on the otherhand is an Athlon II X2 215 stock speed at 2.7ghz. Was ablt to oc it ro 3.2 but wouldnt boot after it so i increased my vcore volt by +50mv from 1.345 to 1.392 and am up to 3.5ghz and was stable with a 6 hour p95 test so i am going to see how much more i can go on this voltage and then test for 24hr on p95.

My temps went from 19C idle to 30C load at 2.7ghz
to now at 26C idle to 45C Load at 3.5ghz


Any tips, suggestions, comments?

Oh! and i got this question. What is it that hurts your system most the voltage of the temp? If its the temp thats ok mine is low enough and i will be getting new cooling soon to swap out from my stock. If its volts then i am going back down to 3.2 ghz so i dont harm it. Will it reduce lifespan if the volts are increased like they are? I dont want to go any higher i am just gone get what i can out of the current volts unless harmful.
    
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post #9 of 10
The temps are hardware killers. Usually a safe zone for me is 1.5v for vcore and 1.4 for CPU/NB. Whilst keeping an eye on your temps ofcourse.
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post #10 of 10
Thread Starter 
OK i will keep hat in mind thanks!
    
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