Help with overclocking voltage

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mireault727

New Member
I need some help with voltage, im using ntune to overclock my laptop, my CPU is a AMD turion 64 mobile 2.0Ghz, i overclocked it to 2.2Ghz the CPU multiplier is 10x,
the HT Bus went from 800mhz to 880mhz and the HT multiplier is 4x,
Pci-e clock from 2500mhz to 2950mhz, everything is stable, but when i try to up the cpu to 2.3Ghz it blue screens,
the voltage is at 1.20V but i can set it up to 1.25V in rightmark but what multiplier do i use? the FID goes up to 10x. is it safe to up the voltage?
and will that little bit make any difference?


Also im planning on building a computer, and with overclocking in the bios i read the tutorial on here, but im not sure 100%,
do i adjust the core frequency by 5-10mhz and try to boot in, if it makes it do i shut down and do it again with another 5-10mhz and repeat till it wont let me boot in?
then adjust the voltage by 0.025 up to 3 times, if one of the voltages work how far do i keep going?
say it works on the second voltage change, do i go till i cant boot in again then adjust once more for the third voltage,
then once i cant boot in thats the max, and go back 10mhz, boot in and do tests?
 
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I'd say 5-10 mhz increments are probably overly cautious. Maybe once you start getting close to your goal, but starting out, you can be more generous with upping your clocks. Voltage is the real thing to be careful about, and you should do as small of increments as you can get away with. The goal is to achieve as high a clock possible while maintaining a stable system, just because it boots does not mean it is stable. There is a fantastic stability testing program that's name has amazingly slipped my mind at the moment (Might have something to do with it being 3am?) If it clears these tests, then its stable, if not, either bump up the voltage or clock back a touch until it is. Another thing to monitor is heat, this is where the voltage kicks in. The higher your voltage, the hotter your processor is going to get, if you get to unsafe temperatures, time to bump back your voltage/speed or get a better cooler.

PS You can't overclock the laptop any higher for a couple reasons most likely. 1. Software based Oc'ing is much less effective than bios OC. 2. Its probably hot enough to cook an egg on, most laptops are hot to begin with. 3. Power issues, plugged in to the wall or not, laptops aren't known to be powerhouses, so while this is the least likely factor, it probably still is one to a degree. 4. You've just plain hit a wall. Mobile processors aren't good overclockers, you'll have to deal with what you got.
 
thanks for the reply :)

i think im getting it now, so to start out just leave the voltage, than adjust the CPU clock a bit run a test like prime95? or a version of 3dmark? and if it passes just up the CPU a bit at a time till it doesnt pass, then either lower the CPU to keep it at stock voltage or try to go up one increment in the voltage and try it, and if it passes than i can keep trying to clock higher? the most id clock is 20-30%
and how do i know when to stop with the voltage, adding 0.075 would be the max to go according to the tutorial (3 increments of 0.025)?
 
My chip runs stock at a frequency of 3.0. I can OC to 3.5 on stock voltage, (1.20v). I can get up to 3.6 with just a little voltage bump up to 1.208v, but I have to push the voltage up to 1.26v for 3.8 and way up to 1.36v for 4.05. So you quickly reach a point of diminishing returns for frequency vs. voltage and heat quickly becomes an issue. My advice is to use a good aftermarket cooler and stay fairly close to stock voltage for daily use. Even at stock voltage it will run quite a bit hotter due to the higher frequency, but it shouldn’t hurt anything to run it up to max voltage for a quick benchmark as long you monitor temps and keep heat within recommended limits.
 
PRIME95! How could I forget that, for shame, for shame. :( Anyway, jevery brings up a good point. Your processor will become far too hot before you reach dangerous voltages. So long as you go slowly and monitor the temps, you won't have to worry about going too high with the voltage. It eventually will also get to the point, like stated above, where increasing more voltage will pretty much just make it hotter, and provide little to no stability benefit.
 
okay thanks for the help guys :D
for a gaming pc what do you guys think would be better?
an AMD phenom II x4 940 3.0Ghz, 6mb L3 cache.
or an Intel Core 2 Quad Q9550 2.83Ghz, 12mb L2 cache.

i also plan to use an evga gtx 275 if that makes any difference in anything
 
amd 940 is better.

and don't overclock the pci-e slot, it will not do anything except bsod your computer.
 
The Q9550 outperforms the 940, though not by a large margin, while currently at $30 more, you have to decide if the Q9550 is worth it. Also there’s the fact that Intel won’t develop any more chips for the 775 socket while AMD probably will continue development for the AM2+. Not knocking AMD, I’ve owned both Intel and AMD, but just be aware that you’re not getting faster for cheaper when comparing the 940 against the 9550.

http://www.insidehw.com/Reviews/CPU...-Phenom-X4-9950-BE-and-Intel-Core2-Q9550.html

http://www.xcpus.com/reviews/117-Phenom-II-940-Review-Clock-for-clock-Deneb-vs-Yorkfield-Page-1.aspx

The 9550 also outperforms the 955 Deneb in the majority of tests.

http://www.tomshardware.com/reviews/phenom-x4-955,2278.html
 
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