Develop Bugs

[Q] SetCPU - Extra Info?

Hi there, thinking about getting SetCPU - I have some questions before I do because I hear it can be dangerous?
- I've heard it can brick your phone?
- What if you set it too high?
- Do you personally have to monitor it?
- What are the benefits?
- Use alot of battery?
- Is it really worth using?
- Is it optimized for different phones - example the One X?
Thanks guys!

JDBurnie said:
Hi there, thinking about getting SetCPU - I have some questions before I do because I hear it can be dangerous?
- I've heard it can brick your phone?
- What if you set it too high?
- Do you personally have to monitor it?
- What are the benefits?
- Use alot of battery?
- Is it really worth using?
- Is it optimized for different phones - example the One X?
Thanks guys!
Click to expand...
Click to collapse
Hi, i have read that SetCPU cannot view all the cores i have read alot saying that System Tuner works fine you might want to try that.
I used to use SetCPU on my sensation and never hand any issues with it i did not monitor the app at all
Benefits allows overclocking if available in kernel
it can be overclocked and cause some issues such as overheating but if set correctly will be fine doesnt use much battery if any
and no i dont think you can brick your phone
if you set it too high i believe i had to reflash rom nothing major
BTW this is based on my own knowledge and usage
Hope this helps

Thanks man

JDBurnie said:
Thanks man
Click to expand...
Click to collapse
How much battery life can you save using setCPU?

lamenramen said:
How much battery life can you save using setCPU?
Click to expand...
Click to collapse
None in theory, if the CPU is slower it takes longer to go from
idle - process - idle
Faster speeds allow it to get it over and done with faster and get back to idle.
Of course it will at times stop the CPU going higher than it needs too which could save battery.
Under volting will save more batter then underclocking ever will.
Sent from my HTC One X using xda premium

SetCPU can not see Tegra 3 yet
Use System Tuner and its free

hamdir said:
SetCPU can not see Tegra 3 yet
Use System Tuner and its free
Click to expand...
Click to collapse
Thanks. I have system tuner, but what do I need to do in order to improve battery life?
I have set the governor to powersave. Is there anything else? How would I undervolt using this app?

lamenramen said:
Thanks. I have system tuner, but what do I need to do in order to improve battery life?
I have set the governor to powersave. Is there anything else? How would I undervolt using this app?
Click to expand...
Click to collapse
undervolting requires your phones kernel to support it, currently on these forums there is only one that does but i haven't tested it, sticking firm to the "stock kernel is best" and will do untill the kernels have more time to mature.
you could limit your max speed to 1 GHz, if you are rooted you can use Core control to turn off cores and run your phone as a dual core.

treebill said:
undervolting requires your phones kernel to support it, currently on these forums there is only one that does but i haven't tested it, sticking firm to the "stock kernel is best" and will do untill the kernels have more time to mature.
you could limit your max speed to 1 GHz, if you are rooted you can use Core control to turn off cores and run your phone as a dual core.
Click to expand...
Click to collapse
Not to be lazy, but would running the phone as dual core and limiting it to 1 ghz result in a perceptible battery savings? I'm trying to get a feel for how much I should expect custom ROMs to make my One X perform up to par. Thus far, I've installed two custom ROMs and felt like the improvements were all safely in the minor category.
I did install cyanogenmod 7 on a phone last year wow, that resulted in major benefits.

lamenramen said:
Not to be lazy, but would running the phone as dual core and limiting it to 1 ghz result in a perceptible battery savings? I'm trying to get a feel for how much I should expect custom ROMs to make my One X perform up to par. Thus far, I've installed two custom ROMs and felt like the improvements were all safely in the minor category.
I did install cyanogenmod 7 on a phone last year wow, that resulted in major benefits.
Click to expand...
Click to collapse
Running on 2 cores stops the phone from using and 2 cores uses less power then 4, playing games and using all cores is over kill 2 cores will run the game without lag use less power and make less heat.
You'll maybe get 10% from doing that but I haven't tested.
Really the only time any of this saves battery is during demanding programs, tegrea has a super low power companion core, for all your power saving needs.
Sent from my HTC One X using xda premium

I tried conservative governor while downloading sd files for Nova3 gave execllent results
I strongly advice not to undervolt tegra3
t3 is not like any other chip and UV or OC should not be attempted
OC because the chip is already at the max of its thermals
UV for the same reason n might end up with problems like flicker
changing governors and UC should be enough

Undervolting

I've noticed that my S3 gets hot quite often and am considering to undervolt my Galaxy s3.
Does undervolting interfere with the performance of the S3? I am the type of user who HATES when there are lags when you scroll through pages, homescreen, and app drawer.

Undervolting is just lowering how much voltage a given frequency uses. It doesnt effect tye performance. The only thing you need to be careful of is instability. Not all chips can undervolt the same. If you undervolt too much for your chip you will get freezes and reboots.
Sent from my Galaxy S3 running DietICS

PMentior said:
Undervolting is just lowering how much voltage a given frequency uses. It doesnt effect tye performance. The only thing you need to be careful of is instability. Not all chips can undervolt the same. If you undervolt too much for your chip you will get freezes and reboots.
Sent from my Galaxy S3 running DietICS
Click to expand...
Click to collapse
That is exactly right. I have two S3 phones on the FAUX Kernel .10u Version and one can under volt to 800 for min frequency and the other will not boot with these settings. Through trial and error both are stable but voltages are different.

PMentior said:
Undervolting is just lowering how much voltage a given frequency uses. It doesnt effect tye performance. The only thing you need to be careful of is instability. Not all chips can undervolt the same. If you undervolt too much for your chip you will get freezes and reboots.
Sent from my Galaxy S3 running DietICS
Click to expand...
Click to collapse
Thanks for the reply. Could you tell me what Kernel / Governor settings and how much i should undervolt to get a stable setting?
It would be great if the performance was still there while saving battery.

rnehrlf said:
Thanks for the reply. Could you tell me what Kernel / Governor settings and how much i should undervolt to get a stable setting?
It would be great if the performance was still there while saving battery.
Click to expand...
Click to collapse
I use this kernal : http://forum.xda-developers.com/showthread.php?t=1756776
Things to know about the kernal:
-If you are using a stock based rom use the sammy version.
-You need to reflash the kernal after any rom flash or you lose wifi/bluetooth
The kernal is already undervolted a little. If you want more you need to do some trial and error to find what works for your chip.

PMentior said:
I use this kernal : http://forum.xda-developers.com/showthread.php?t=1756776
Things to know about the kernal:
-If you are using a stock based rom use the sammy version.
-You need to reflash the kernal after any rom flash or you lose wifi/bluetooth
The kernal is already undervolted a little. If you want more you need to do some trial and error to find what works for your chip.
Click to expand...
Click to collapse
Thank you so much. And which app would i use to change the clockspeed and governor settings?

So that kernel will work with stock Bell rom? If i dont like the kernel, can I just reload my previous nandroid image to remove it?

Some n00b questions regarding Overclocking/Kernals

Hi guys,
I've got a Galaxy S3 via Rogers, rooted, running the rom Triune II, I haven't messed around with custom Kernals (tbh haven't figured that out really), I recently installed SetCPU to overclock my S3 for running graphic intensive/slow loading games like Asphalt 7, etc.
So far for that purpose it's been amazing, the games literally open twice as fast. I've setup SetCPU for a variety of CPU changes, ie. higher speeds for graphic intensive games, lower speed for screen off while charging (ie. overnight) and it seems to be working great.
My questions are:
Can "overclocking" damange my device? Ie. I know that obviously overclocking shreds through battery life, but is playing a game at the top speed available on SetCPU (1512 Mhz) bad over a prolonged period?
Also, am I not reaping the full benefits of over/underclocking having a custom kernal installed?
Also...nother totally n00b one, if the S3 is capable of reaching the "overclocked" max speed, why doesn't it in the stock ROM? I just don't quite get that....is it because the battery life would be terrible and people would blame Samsung for it?

Never had a issue overclocking. And I've overclocked every phone I've owned beside the iPhone.
As far as how much better it will make your phone it depends. Depends on the rom too. I've noticed better benchmark results yet not always better real world results.
I use it more for the ability to underclock, and overclock when necessary.
Sent from my SGH-I747 using xda app-developers app

a little off but do you know of a way to measure the temperature of the phone (when you overclock/or even normally) ?
My phone does heat up sometimes

For over/underclocking there must be support for it built in kernel ! So if stock kernel doesn't support it you cannot probably change frequencies without changing kernel on stock Rom !
Also read the kernel's documentation - stable frequencies will be listed there - jumping back and forth these frequencies won't cause any troubles apart from the obvious battery drainage depending on your settings

Sianspheric said:
Hi guys,
I've got a Galaxy S3 via Rogers, rooted, running the rom Triune II, I haven't messed around with custom Kernals (tbh haven't figured that out really), I recently installed SetCPU to overclock my S3 for running graphic intensive/slow loading games like Asphalt 7, etc.
So far for that purpose it's been amazing, the games literally open twice as fast. I've setup SetCPU for a variety of CPU changes, ie. higher speeds for graphic intensive games, lower speed for screen off while charging (ie. overnight) and it seems to be working great.
My questions are:
Can "overclocking" damange my device? Ie. I know that obviously overclocking shreds through battery life, but is playing a game at the top speed available on SetCPU (1512 Mhz) bad over a prolonged period?
Also, am I not reaping the full benefits of over/underclocking having a custom kernal installed?
Also...nother totally n00b one, if the S3 is capable of reaching the "overclocked" max speed, why doesn't it in the stock ROM? I just don't quite get that....is it because the battery life would be terrible and people would blame Samsung for it?
Click to expand...
Click to collapse
Yes overclocking can damage your cpu from overheating, some even believe it may reduce the lifespan of you cpu.
If you are running 1512 max you are running stock mhz, that isn't overclocked. You cannot run a stock Sammy kernel and overclock it unless it's been recompile..to be overclocked.
I recommend ktoonsez kernel it can be overclocked to 2106mhz and underclocked to 96mhz. As well as undervolting support which is pretty much essential for overclocking because an undervolt will make your phone produce less heat by lowering the voltage your phone requires when running.
To answer your second question, yes you are not reaping any benefits without a custom kernel, this is evident.
To answer the last. The stock kernel is maxed at 1512 because that is the best mhz for the STOCK Sammy kernel performance and battery wise. Also its possible that overheating happened when they set the max at higher mhz during their tests.
Some good general knowledge if you decide to overclock, would be learning how to and what undervolting does for your phone. You can read up on that here:
http://forum.xda-developers.com/showthread.php?p=33282284
Ktoonsez kernel thread: http://forum.xda-developers.com/showthread.php?p=28399829
Make sure you download the right one for your rom!
If after reading about undervolting and installing kernel and would like some safe undervolting and gov/scheduler settings let me know! You can also find many other settings here:
http://forum.xda-developers.com/showthread.php?p=31539830
AT&T SGS3 Marble White
Team AoCP The Collective ROM
KT747 10/31 OC'ed & UV'ed
Medical MJ Supporter

Sorry that kernal thread is a bit confusing.
Does that Kernal only exist for the stock carrier ROM and CM?
I'm using Triune II, if the kernal doesn't exist for that ROM then I take it I have to change ROM's?

Sianspheric said:
Sorry that kernal thread is a bit confusing.
Does that Kernal only exist for the stock carrier ROM and CM?
I'm using Triune II, if the kernal doesn't exist for that ROM then I take it I have to change ROM's?
Click to expand...
Click to collapse
No. Triune is a TW based ROM. Therefore, you need to download KToonsez TW kernel. Keep in mind there is a ICS TW kernel, and then there is a JB TW kernel.
There are other kernels out there. Faux123 has a good one. It is capable of OC to 1.8Ghz, I believe.

Sianspheric said:
Sorry that kernal thread is a bit confusing.
Does that Kernal only exist for the stock carrier ROM and CM?
I'm using Triune II, if the kernal doesn't exist for that ROM then I take it I have to change ROM's?
Click to expand...
Click to collapse
Download the one titled touchwiz and whatever version you are running be it ice cream sandwich touchwiz, or jellybean touchwiz.
AT&T SGS3 Marble White
Task & Ktoonsez AoKP ROM
Ktoonsez 11/13 Kernel OC'ed
Medical MJ Supporter

[Q] Overclock really worth it?

Curious if overclocking the CPU and GPU is really worth it looking at performance vs battery life. My device seems zippy already, but I'm just wondering if overclocking would improve anything seeing as some other tablets are moving onto 2.0+GHz.
If so, what kernel would you recommend me to use?

I would not overclock it, if you think it is very fast already. Overclocking from 1.5GHz to 2+GHz is probably mostly used for people trying to get the highest benchmark score.

i used to test roms and over clock the kernels while testing now iam back to basics
as i noticed even with a small overclock the system got hot around camera area on most kernels
that was enough for me to stop oclocking

Poll: Need some info about OC (only Project T users)

Hi, I need some info from all the Project T users out there (both phone models).
As I made some tests I discovered that the OC code in ZE551ML doesn't seem to work consistently (or not at all according to some users).
I know that UC works, but depending on your feedback I will just continue with one UC'ed build or keep the normal and the OC/UC build
So here my Poll question:
Who has real performance improvements with the OC code?
1) ZE551ML and OC does work
2) ZE551ML and OC doesn't work at all
3) ZE550ML and OC does work
4) ZE550ML and OC doesn't work at all
Thanks!

I can see the phone running at 2000mhz in the freq table... But no much performance boost...
550ml

It doesn't improve performance but yes showing 2ghz in 1.8ghz..
And as I said I can test any build which have 1.8ghz to 2.3ghz if you want and zenfone zoom is going to have 2.5ghz, gpu @640mhz, if they released source, try to implement what they did in that, becoz basically all are same hardware with different clock,. .

It shows 2.5GHz, but geekbench score is not higher than using 2.33GHz. The score for 2.5GHz is even a little bit lower. Tested with performance governor.

Yeah, I feared that...let's see what this poll says, then I can decide if I at least keep the underclocking and keep only the UC version

Intel processors are probably well locked. If tdp throttling is an issue, that can be worked with, but playing with the multiplier is probably out. If anything building a kernel with support for implausibly high frequencies could be a good test. If the phone "works" at 4ghz....
Sent from my ASUS_Z00A using Tapatalk

As I sayed in the Kernel-Thread, all my testing makes clear, that on my phone OC doesn't really work. I see the higher clock used in CPU Spy / Kernel Adiutor but there is no performanceimprovement (551ML).
Thank you for your work. And maybe, there is a solution to unlock the SoC.