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I've undervolted my device and right now I have
100mhz - 825 mah
200mhz - 825 mah
500mhz - 800 mah
for some reason the 500mhz setting is stable and if I undervolt 100mhz/200mhz even more, I crash.
If I set my minimum processor power to 500mhz would I consume less batter than if I were to use 100mhz/200mhz?
Your phone spends most of its time in the lowest and highest cpu frequencies and just a small amount of time at the intermediate levels. Your undervolt for 500mhz probably isn't stable but it doesn't crash because it's only at that frequency for a very short amount of time. If you set the minimum to 500mhz at that voltage it will probably start playing up.
http:/ /db.tt/iy1bKVoB
graph of my cpu levels
Abit offtopic but what the hell!
I was wondering if there's any risks involved with undervolting?
I don't meen the crashes and freeze ups, but rather more like if there's any risk
to really damage your phone from it?
I have and still do alot of OC in the computer world, and do know what overvolting can do. But i'm still curious about what uv can do to your system.
Maskell said:
Your phone spends most of its time in the lowest and highest cpu frequencies and just a small amount of time at the intermediate levels. Your undervolt for 500mhz probably isn't stable but it doesn't crash because it's only at that frequency for a very short amount of time. If you set the minimum to 500mhz at that voltage it will probably start playing up.
http:/ /db.tt/iy1bKVoB
graph of my cpu levels
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Click to collapse
It's been my minimum even before posting this thread. I just started to wonder.
I've been on it for 10 hours now. I have 45% battery life left. Probably due to my 1700mhz being @ 1350mah right now.
I can assure you, it's VERY stable. It's so SMOOTH. Smoother than just having rocketrom and all that stuff. NO LAGS, NO SHUTDOWNS. ALL STABLE.
I can see better battery life, and CPU Spy says it used up 47% 1700mhz and 40% 500mhz. I think it's giving me better battery life.
It's evenly splitted up probably because I was using lulzactive governor.
but then again I didn't log my previous battery life without undervolting.
Some more insight would be nice.
SweCrow81 said:
Abit offtopic but what the hell!
I was wondering if there's any risks involved with undervolting?
I don't meen the crashes and freeze ups, but rather more like if there's any risk
to really damage your phone from it?
I have and still do alot of OC in the computer world, and do know what overvolting can do. But i'm still curious about what uv can do to your system.
Click to expand...
Click to collapse
There are alot of risks. Minor chance that you will cause hardware damage to your phone but I'm saying VERY minor. Just don't be stupid with voltages, like just suddenly overdropping the voltages. Your processor might die.
It's scary as hell, it crashes alot while testing and all that ****.
Feels good when you get it stable though.
TL;DR
Very slight chance to damage your hardware; only if you're very daring.
It should increase your battery life by atleast 20% if you reach the peak of your processors limit.
Bump, are there no other insights on this? Am I like, the only one who undervolted his/her note?
help
clairenix said:
Bump, are there no other insights on this? Am I like, the only one who undervolted his/her note?
help
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Click to collapse
I want to run 1700mhz as permanent and also wanted to undervolt but i wasnt sure how much by and what the risks are. Reason being is my phone gets hot with heavy usage running at 1400mhz so didnt want to go to 1700. I'll watch this thread with interest
kaos_king said:
I want to run 1700mhz as permanent and also wanted to undervolt but i wasnt sure how much by and what the risks are. Reason being is my phone gets hot with heavy usage running at 1400mhz so didnt want to go to 1700. I'll watch this thread with interest
Click to expand...
Click to collapse
I'm running 500-1700mhz.
Indeed it does get hot at 1700mhz, when I'm playing games but I've only at most played for 4 hours straight.
For what reason would you want to run 1700mhz-1700mhz?
clairenix said:
I'm running 500-1700mhz.
Indeed it does get hot at 1700mhz, when I'm playing games but I've only at most played for 4 hours straight.
For what reason would you want to run 1700mhz-1700mhz?
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Click to collapse
No sorry i meant running it at 1700 max, leaving it stock for the min. I just wanted to know how much i can safely undervolt 1700 by.
I actually have a question. I undervolted my note with SetCPU and I read that Tegrak Overclock Ultimate should be used as well together with SetCPU.
What does Tegrak Overclock do? GPU settings?
Would like to learn that part if anyone has any info.
kaos_king said:
No sorry i meant running it at 1700 max, leaving it stock for the min. I just wanted to know how much i can safely undervolt 1700 by.
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Click to collapse
I undervolted mine by about 100mah. I think I can tone it down by about 25mah more but I'm having a hard time getting it to stabilize.
1350 for my device is completely safe though.
Though, all processors are different. Yours could be better than mine and can withstand more UV-ing.
Goodluck!
liutszho said:
I actually have a question. I undervolted my note with SetCPU and I read that Tegrak Overclock Ultimate should be used as well together with SetCPU.
What does Tegrak Overclock do? GPU settings?
Would like to learn that part if anyone has any info.
Click to expand...
Click to collapse
It's basically the same with SetCPU aside from its voltages.
I do not know if it should be used with SetCPU with the note because from what I've researched. It's only a common practice with SGSII.
Tried setting 100 and 200 mhz to 825. Crashed my phone twice in one day using it, gonna revert back to 875
clairenix said:
I undervolted mine by about 100mah. I think I can tone it down by about 25mah more but I'm having a hard time getting it to stabilize.
1350 for my device is completely safe though.
Though, all processors are different. Yours could be better than mine and can withstand more UV-ing.
Goodluck!
Click to expand...
Click to collapse
Many thanks!
I will just experiment then, i didnt want to do that and then cause hw damage. I'll let you know how my processor gets on
hey everybode!
i wanted to know i have rocket rom and i want to use setcpu to overclock my kernel
and sebastian is max to 1400 is thers good kernel that i can play with it till 1700mghz or 1900?
but it need to be stable
Abyss goes to 1700. My CPU can't take it, sadly
bubu23 said:
but it need to be stable
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Click to collapse
The stability is dependant on your hardware; some chips can only overclock to 1500Mhz and some can overclock all the way to 1900Mhz. It is not something the kernel has a say over.
Don't all of the notes have the same cpu? Why can some be overclocked and others not?
Sent from my GT-N7000 using Tapatalk
kkg720 said:
Don't all of the notes have the same cpu? Why can some be overclocked and others not?
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Click to collapse
They all can be overclocked, but how much is a different thing altogether. It's quite simple really, not every chip manufactured is of equal quality; some chips have more imperfections. The more imperfections the less it can be overclocked before it becomes unstable. It's the same thing as on PCs, too.
Stable is it when you do nothing and use it in originally form. Overcklocking need more Power more power is less time you enjoj your note!
Generally these chips are made to tolerate a certain speed, and because of variability, the manufacturer drops the speed tolerance to ensure overall quality. Some will still be able to manage 1500, 1700, or even 1900 (although rarely, I'd say). Just about all of them tolerate 1400, so very few are defective at the stated tolerance. With 5 million, you will get a few, however.
This is one of those rare occasions when statistics have a benefit in the real world!
jeromepearce said:
Generally these chips are made to tolerate a certain speed, and because of variability, the manufacturer drops the speed tolerance to ensure overall quality. Some will still be able to manage 1500, 1700, or even 1900 (although rarely, I'd say). Just about all of them tolerate 1400, so very few are defective at the stated tolerance. With 5 million, you will get a few, however.
This is one of those rare occasions when statistics have a benefit in the real world!
Click to expand...
Click to collapse
I will keep mine at stock speeds because ignorance is bliss
bubu23 said:
hey everybode!
i wanted to know i have rocket rom and i want to use setcpu to overclock my kernel
and sebastian is max to 1400 is thers good kernel that i can play with it till 1700mghz or 1900?
but it need to be stable
Click to expand...
Click to collapse
There are many out there that will let you overclock. Search the Android development forum.
Like most, I have flashed heaps of times, probably at least four or five times a week when I first got this wonderful Note, but in the last month or so have only been tempted to stray three or four times. Personally Franco 6 is best for me, because I favour battery life and stability rather than overclocking (1400MHz is not bad as a standard!!)
I would encourage you to try a few for a few days, as long as you backup often you should have a great experience!
Are all kernels capable of overclocking?
Is there one that overclocks the best?
How do you tell how high you can go?
Do you jusy keep overclocking until the NOte stops working?
If so, there must be a fine line.
jeffs99 said:
Are all kernels capable of overclocking?
Is there one that overclocks the best?
How do you tell how high you can go?
Do you jusy keep overclocking until the NOte stops working?
If so, there must be a fine line.
Click to expand...
Click to collapse
Stock kernel isn't capable of overclocking.
One way to tell is to download things like SetCPU which detects the range of the clockspeed. Another way is to simply read the description of the kernel thread.
How high your phone can go is an individual thing. You need to overclock in slight increments (say 50mhz at a time) and run a stability test to see if the phone crashes or not.
You DO NOT pull the slider all the way to 1.9 ghz and "see" if anything happens. If you fry your CPU, do not come to us for help.
This is why I don't like overclocking, it's a waste of time to run the stability tests, etc.
In summary, you need to raise it a little bit, and run stability tests and repeat the process until your phone crashes. At that point, you'd know the last safe-stable clockspeed that your CPU can take.
PoisonWolf said:
Stock kernel isn't capable of overclocking.
One way to tell is to download things like SetCPU which detects the range of the clockspeed. Another way is to simply read the description of the kernel thread.
How high your phone can go is an individual thing. You need to overclock in slight increments (say 50mhz at a time) and run a stability test to see if the phone crashes or not.
You DO NOT pull the slider all the way to 1.9 ghz and "see" if anything happens. If you fry your CPU, do not come to us for help.
This is why I don't like overclocking, it's a waste of time to run the stability tests, etc.
In summary, you need to raise it a little bit, and run stability tests and repeat the process until your phone crashes. At that point, you'd know the last safe-stable clockspeed that your CPU can take.
Click to expand...
Click to collapse
Thanks!
What do you recommend for a good stability test?
I'm on franco.kernel v10 and OC to 1600 using Tegrak. Tegrak runs the stability tests automatically and reverts to stock 1400 if unstable or a reboot occurs.
I tried 1700 but Note rebooted after about 2 minutes. Booted right back up at 1400 with no problems. Re-set to 1600 and running smoothly.
kraz
Sent from my Beautiful, White GT-N7000 using xda premium
Set CPU has a CPU stress test
Sent from my GT-N7000 using xda premium
Hi !
i have a LB and so, i have only a stock kernel. I would like to use Setcpu and profile to save my phone, can use it ? can i undervolt this ?
Thanks !
Meelouw said:
Hi !
i have a LB and so, i have only a stock kernel. I would like to use Setcpu and profile to save my phone, can use it ? can i undervolt this ?
Thanks !
Click to expand...
Click to collapse
No, you need a custom kernel for UV/OC/UC so setcpu or other similar apps are of no use to you.
gregbradley said:
No, you need a custom kernel for UV/OC/UC so setcpu or other similar apps are of no use to you.
Click to expand...
Click to collapse
Agreed, except you will be able to profile using stock governors and I/o schedulers if you are rooted, you will also be able to set a lower max or higher min process speed if you should choose. I have not used setCpu yet although I have it installed, annoyingly it keeps requesting su even tho I'm not using it :/
Sent from my LT30p using xda app-developers app
[email protected] said:
Agreed, except you will be able to profile using stock governors and I/o schedulers if you are rooted, you will also be able to set a lower max or higher min process speed if you should choose. I have not used setCpu yet although I have it installed, annoyingly it keeps requesting su even tho I'm not using it :/
Sent from my LT30p using xda app-developers app
Click to expand...
Click to collapse
True, you can set stock governers, but when it comes setting cpu speeds you will only be able to set stock speeds. Since the stock speeds are all aready availabe you will only be able to increase the lowest speed and decrease the max speed which is not what he wants to do, and IMHO no something to bother doing anyway.
Indeed, and thats what I said
However I would disagree that it's pointless - you could (for example) set profiles for when battery >40% max cpu = 1G - this would slightly increase remaining battery life - you can also set temperature based profiles and even profiles for specific apps.
But in truth, most of these are rather redundant given that the T already has battery saver/thermal throttling and decent enough processor to cope with heavy load - still, will be very useful once we get a few more custom kernels to play with (eagerly awaits the arrival of DOOOOOOM!!!)
[email protected] said:
Indeed, and thats what I said
However I would disagree that it's pointless - you could (for example) set profiles for when battery >40% max cpu = 1G - this would slightly increase remaining battery life - you can also set temperature based profiles and even profiles for specific apps.
But in truth, most of these are rather redundant given that the T already has battery saver/thermal throttling and decent enough processor to cope with heavy load - still, will be very useful once we get a few more custom kernels to play with (eagerly awaits the arrival of DOOOOOOM!!!)
Click to expand...
Click to collapse
+1
I tried SetCPU when I was rooted on 303 firmware.
It worked ok for about half a day and then locked in a CPU mode and hammered my battery until the phone went flat. The phone was pretty hot when I noticed and picked it up.
Might be a one-off but worth keeping look out for if you are using with a LB like I was.
If I helped hit thanks!
ok
thanks for all information !
Hi all,
I'm very annoyed from the Cpu throttling on my Xperia Z3+.
I don't have root, because it's not possible to backup DRM Keys without unlocking Bootloader. But someday it will be possible.
Is it possible to change the treshold of Cpu throtteling? Maybe by editing a File when I have root?.
Sorry for my bad english.
ThePhilipp01 said:
Hi all,
I'm very annoyed from the Cpu throttling on my Xperia Z3+.
I don't have root, because it's not possible to backup DRM Keys without unlocking Bootloader. But someday it will be possible.
Is it possible to change the treshold of Cpu throtteling? Maybe by editing a File when I have root?.
Sorry for my bad english.
Click to expand...
Click to collapse
You can change the temperature it throttles at, but it pretty much reaches that temperature immediately. I don't believe the S810 in this phone can run at max frequency for longer than a few seconds.
I want to do the same , since I strongly believe, that without thermal throttling, cpu's temperature won't go very high
ChrisJ951 said:
You can change the temperature it throttles at, but it pretty much reaches that temperature immediately. I don't believe the S810 in this phone can run at max frequency for longer than a few seconds.
Click to expand...
Click to collapse
I don't want remove the throttling completly, but I want to set the temperature treshold higher. At 55° the S810 goes down with the perfomance. For example, the Galaxy S6 is much hotter before it throttles.
Perhaps we could also limit the 4 strong cores to a maximum of 1.8 GHz, as in OnePlus Two. Then the Xperia Z3 + / Z4 still has enough power, but is still not as fast hot. When the S810 is throttled, it is far below the 1.8 Ghz. Down to 700Mhz far as I know.
Dathrex said:
I want to do the same , since I strongly believe, that without thermal throttling, cpu's temperature won't go very high
Click to expand...
Click to collapse
How do you know? Did you have a chance to test that?
How can I underclock my 9T Pro smartphone? I don't play games or use power intensive apps, I'm thinking to underclock it's CPU and/or GPU to extend battery life.
I'm on latest MIUI 11 Beta from xiaomi.eu, rooted.
Are there any apps or methods to safely reduce frequencies for its CPU/GPU?
Root and a kernel manager like FKM.
hoopsnake said:
Root and a kernel manager like FKM.
Click to expand...
Click to collapse
I tried Franco's app but some CPU frequency settings don't maintain after a while.
And I'm sure I don't know exactly what frequencies should I modify (and how much) on the three clusters to obtain a balanced setting.
Not no mention GPU frequency settings...
cris2d2 said:
I tried Franco's app but some CPU frequency settings don't maintain after a while.
And I'm sure I don't know exactly what frequencies should I modify (and how much) on the three clusters to obtain a balanced setting.
Not no mention GPU frequency settings...
Click to expand...
Click to collapse
Sorry I won't be much help on this as I haven't needed to change frequencies in a while. Afaik you just need to change the CPU and GPU governors to power save and set it to apply on reboot, small cores like to jump up a lot more max freq than the big cores so maybe around 1500mhz for small, keep large cores from going into 2000mhz and prime core too, GPU from what I remember really struggles if limited to lowest frequency, 300ish is a good starting point.
Depends on what rom you are running too, miui you don't really have a choice but to use stock kernel. On custom rom you have a lot more choices of kernel like immensity, f1xy, kraven and notkernel.
hoopsnake said:
Sorry I won't be much help on this as I haven't needed to change frequencies in a while. Afaik you just need to change the CPU and GPU governors to power save and set it to apply on reboot, small cores like to jump up a lot more max freq than the big cores so maybe around 1500mhz for small, keep large cores from going into 2000mhz and prime core too, GPU from what I remember really struggles if limited to lowest frequency, 300ish is a good starting point.
Depends on what rom you are running too, miui you don't really have a choice but to use stock kernel. On custom rom you have a lot more choices of kernel like immensity, f1xy, kraven and notkernel.
Click to expand...
Click to collapse
Thanks!
I'm using MIUI 11 latest weekly from xiaomi.eu.
Right now I applied your suggestions in FKM, I'm waiting to see how it influences the performance and power usage.
Well, I tested changing frequencies and governors in FKM but they won't stay after restart, even if apply after boot was checked for each modification. I guess MIUI kernel is not so friendly in this matter.
cris2d2 said:
Well, I tested changing frequencies and governors in FKM but they won't stay after restart, even if apply after boot was checked for each modification. I guess MIUI kernel is not so friendly in this matter.
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Click to collapse
Try to use kernel iMMENSITY-RAPHAEL-V24.0-MIUI-BETA-24-03-2020 version. It's really recommend for miui11 latest beta.
wkobaint said:
Try to use kernel iMMENSITY-RAPHAEL-V24.0-MIUI-BETA-24-03-2020 version. It's really recommend for miui11 latest beta.
Click to expand...
Click to collapse
Unfortunately, this kernel breaks AOD function.
cris2d2 said:
Unfortunately, this kernel breaks AOD function.
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Click to collapse
I used miroom latest mi11 beta and doesn't had the above issue
CPU overclock since snapdragon 845 is not possible anymore.
For GPU try Candy.
Shinichi Kudo said:
CPU overclock since snapdragon 845 is not possible anymore.
For GPU try Candy.
Click to expand...
Click to collapse
I'm trying underclocking, not overclocking.
I am sorry I meant to say changing clock at kernel level that is.
I may be wrong though.
Shinichi Kudo said:
I am sorry I meant to say changing clock at kernel level that is.
I may be wrong though.
Click to expand...
Click to collapse
So, if this is true, changing freqs can't be done even in custom ROMs (non MIUI) and it's bad.
I tried lowering screen resolution and DPI to save power but the rounded corners become even rounder (?!) and power usage didn't drop that much.