1. first of all, prior to all experiments were performed a full-Nandroid backup. if the space on the drive back to back, clear the cache before the procedure: it will reduce the overall size of nandroid-image;
2. expose constraints for system available to it (and run applications) frequencies. to accelerate and simplify the catching failures work only with a pair near each other frequencies. I started from the top down: max CPU 1200MHz, min CPU 920MHz, any Governor. the essence of this limitation is that the test mode scaling utility Stability test will be limited to only two frequencies, and will jump from one to another and changing their Governor are much more likely than if the frequency was>2.
1200-920 for the following pairs are 700-350, 350-180 (here, it is understood only nastrivaem 180). 1350MHz frequency 1420 and I have not used, so do not work at all with them;
3. starting to reduce the voltage to the first frequency of the test pair. but to start looking for, be sure to find and always used to deactivate your tweaker CPU-point "start at boot", "apply settings at boot", "to apply the settings after a reboot", etc.
important: will continue friezes / reboot, and if at the time of deep frieze (in my experience, 80-90% Friesians ~ 5-10 seconds later ends automatically reboot) the device was charged, first unplug it and then remove the battery. yes, mentally get ready to open the cover and do not rush to put it in place, the battery inside the tightly held when putting the unit carefully.
So, boldly and resolutely 75mV throw down, and then all 100mV. for example, in my config for 1200MHz frequency voltage defoltnogo = 1300mV. 1200mV set and apply the change. If Cool Tool is installed and running, look at the current frequency if there is 920MHz, so we need to somehow "move" that sprang up to 1200MHz. Task Manager, for example, run. if 1200Mhz reached and hung, so you can still reduce naprugu. returning to tweaker, we remember the current value and resets have less of 25mV. use change and repeat the simulation activity. as a result, the next time reduction (eg 1100mV) apparatus inevitably hangs, rebutnotsya (help him in this, if you want), and after loading the frieze we return the previous value (ie, if it was set in 1100 1125mV);
4. empirically testing "grope" combination frequency / voltage in the program "Stability test". program provides us with two options check: Simple Classic stability test (Governor does not change), and the right Scaling Stability Test (automatic change of available frequencies and the Governor, are moving all their possible combinations). There is also a CPU + GPU Stability test (full details), but the video we are not persecuted, and leave this regime beyond, although sedation can make it go away at the end of the procedure, along with a final test (see para. 5). Of course, we choose the "Scaling Stability Test" and chased it for 15-20 minutes. if hung / rebutnulis before the expiration of this time, well: after reboot add + 25mV and run the tests again.
before starting the test check on the spot whether to set tweaker limitation on minimum / maximum frequency.
Thus, the transition from one combination frequency / voltage to another, not forgetting the need to install a new pair of min / max (described in paragraph 2) after creation of a stable pair from near to each other frequencies. and moving: 1200-920, 700-350, 350-180;
illustration work "Scaling Stability Test" 5. final, the longest test: pushing the boundaries of the available frequencies within the system planned for continuous use (eg, max CPU 1200MHz, min CPU 180MHz), and run the "scaling test" commercials an hour or two. You can and should be something else to do in the testing process, further impacting the system. later and can additionally CPU + GPU Stability test (full details) drive.
and if all is well, then all is well :)
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for example my frequency / voltage. aokp milestone.3 + Leankernel 1.10.0 exp2 180MHz and it is only with a minimum 230Mhz
1350MHz 1200mV
1200MHz 1125mV
920MHz 975mV
700MHz 900mV
350MHz 775mV
230MHz 725mV (this rate is only available in the kernel Leankernel 1.10.0 exp2 230MHz)
180MHz 700mV (this rate is only available in the kernel Leankernel 1.10.0 exp2 180MHz)
stress white with the word current - Defaulted
gray voltage to the word saved - lower
as you can see, the difference is significant! these seemingly minor microtension ineptly scattered in space. perhaps something else Play around / Correct, but in general it seems to limit specific to my machine.
update: I added stress to 1350MHz. still I try and use the same frequency.