Question about overclocking the Galaxy S9 Snapdragon 845 Processor with SetCPU... - Samsung Galaxy S9 Questions & Answers

What's the min/max frequencies? Also, what is the safest highest frequency you can set it to without having to worry about damaging your phone? If anyone has a preset profile they have for performance that they'd like to share, I would highly appreciate it.

Legended said:
What's the min/max frequencies? Also, what is the safest highest frequency you can set it to without having to worry about damaging your phone? If anyone has a preset profile they have for performance that they'd like to share, I would highly appreciate it.
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You cant overlock the Snapdragon as long as it has a locked bootloader

The Chinese and laton America BLs on the snapdrqgons are not locked, i assume he has either of those.
If not then yes pointless question
sent from my Pixel 2 XL or Note FE

Related

CPU Governor

The galaxy has a big jump from 400Mhz to 800Mhz. Is it possible by modifying the kernel to an intermediate step (600Mhz) or is the hardware limitation?
Thanks in advance
sorry edited :
fobas001 said:
Galaxy s have 1ghz cpu, wrong forum...
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I think you should read the title... I mean the governor of the cpu. It has various speeds to save energy...
Yes. I beleive SetCPU can do this. I haven't tested though.
I think its possible, I've just added one scaling from 100,200,400,800,1000,1200
SetCPU can do that
soraxd said:
SetCPU can do that
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Only with a stock kernel? So why I can only choose 100-200-400-800-1000 speeds? The ideal would be that it can be set to 600MHz, plenty of power for everyday use
You would have to change the cpu multiplier in order to get a frequency in that range.
You can't change it without adding 600 MHz in the source. SetCPU can only choose the speeds given to it by the source code. I wouldn't be too worried about it though. It only speeds up for as long as it needs to complete a task then it's usually back down to 100 MHz.
AJerman said:
You can't change it without adding 600 MHz in the source. SetCPU can only choose the speeds given to it by the source code. I wouldn't be too worried about it though. It only speeds up for as long as it needs to complete a task then it's usually back down to 100 MHz.
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That is the question. The more intensive use it is when I use the web browser. And would have the necessary fluidity 600Mhz spending less to have it running a while to 800Mhz.
Anyway I see that the overclock is the same as a PC, with the difference of having to modify the kernel. Time will tell if any of those that modify the kernel have the same need and put it.
PD. Google Translate rules...I'm spaniard...
braintheboss said:
The galaxy has a big jump from 400Mhz to 800Mhz. Is it possible by modifying the kernel to an intermediate step (600Mhz) or is the hardware limitation?
Thanks in advance
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Hello !
A good CPU governor is design to get most CPU performance and save energy without altering too much reactivity (=introducing latency)
This is why the governor jump "as quick as possible" to high frequencies.
BTW, the quickest the CPU calculates the operation asked, the sooner it can go back to deep sleeping states.
Setting a maximum cpu frequency other than 1GHz (800MHz, 600...) is counter productive.
You'll loose both speed and autonomy because the CPU won't be so often in deepest power saving states.
(you'll find many studies about this )

overclocking - my questions for understanding

So I thought about overclocking. I never overclocked any CPU by now. No PC cpus, no mobile cpus
I just always read: Do not overclock! More heat production, more energy costing and of course: probably decrease device life-time and may damage the phone.
On the opposite there is: more cpu-power. WFS seems to be able to get OC'd to 800 MHz (which is 200 above standard and only 200 below Desire)
So, what can you tell me about the above conclusions?
Next question: Do I need overclocking, or is it just to win a p.... length comparing ?
I'm on stock European rom 2.3.5. I know I need custom kernel. which one I could use, how to flash? Which apps do I need furthermore?
theq86 said:
So I thought about overclocking. I never overclocked any CPU by now. No PC cpus, no mobile cpus
I just always read: Do not overclock! More heat production, more energy costing and of course: probably decrease device life-time and may damage the phone.
On the opposite there is: more cpu-power. WFS seems to be able to get OC'd to 800 MHz (which is 200 above standard and only 200 below Desire)
So, what can you tell me about the above conclusions?
Next question: Do I need overclocking, or is it just to win a p.... length comparing ?
I'm on stock European rom 2.3.5. I know I need custom kernel. which one I could use, how to flash? Which apps do I need furthermore?
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No it's not just for a pissing contest.
Jikantaru's new kernel will allow you to set your clock to vary between 120 Mhz and 806 Mhz although 787 Mhz tends to work for those unlucky enough to have phones that freeze up at 806 Mhz.
The CPU doesn't run balls out all the time. It speedsteps as needed to save battery power.
You flash the kernel that you download to your SD card through CWM Recovery's Install zip from SD card feature.
Reboot and you now have Ext4 support for Link2SD, etc, and overclocking capabilities as well as a host of other kernel tweaks to handle memory management, etc.
As far as programs to set the clock with? SetCPU, Rom Toolbox, Nofrills CPU, Antutu CPU, etc.
I would choose "Smartass" as your governor and 120 and 806 as your min and max CPU settings and choose to set it at boot.
That's just my preference.
I personally bought Rom Toolbox Pro and manage the CPU settings through it.
It's got a host of other cool features all in one place and jrummy updates it very often with new fixes, features, etc.
thanks for that.
so what about damaging the cpu or the device? is there nothing to worry about?
and what is a govener? do I need it in addition to setcpu ?
theq86 said:
thanks for that.
so what about damaging the cpu or the device? is there nothing to worry about?
and what is a govener? do I need it in addition to setcpu ?
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The governor is the method by which the phone plans it's stepping up and down of frequencies. Smartass is a tried and true good combination of power savings and stepping to the plate with high clock frequencies when needed.
No you won't need anything extra. It's one of the settings in any of those programs.
Sorry for asking again:
It won't damage my device or burn the cpu as overclocking a normal PC CPU would do?
edit: using nofrills now. Seems to work.
theq86 said:
Sorry for asking again:
It won't damage my device or burn the cpu as overclocking a normal PC CPU would do?
edit: using nofrills now. Seems to work.
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Overclocking comes with no promises man. Mine's been overclocked since August so that's all I have to go on.
There is always a danger or risk when overclocking. The manufacturers determine the safe frequencies, temperatures, voltage, etc. based on scientific experiments in different environments. However, with that said, obviously, they are not infallable either. The best way to determine your risk is to think about what conditions you'll be using it in the most and what kind of stress it'll put on your phone's internals. Do some research and see what other people have problems with and under what kind of stress was the phone. Use common sense. Things like raising voltage and frequencies raise the temperature of the phone's internals, also. So, in turn, do you also have a case on the device that retains heat? Do you live in an humid/dry or warm/cold area? Do you do a lot of multitasking? Are you constantly on it? Hope this helps.
Sent from my myTouch_4G_Slide using XDA App

PegasusQ Governor?

i heard/read about it in my SGS2's time... It was implemented by Gokhan in his kernel but later stripped out because of some problems. PegasusQ is said to be made to handle Quad-core like our One-X, and SGSIII is said to be using this governor by default... Will we be able to see this governor in future Kernel build? or its not compatible technically with Tegra-3 since its a 4+1 setup? Can someone with the knowing enlighten us?
it seems that no one is interested with this
The latest Siyah kernel for SGS2 actually uses pegasusq by default.
jaytana said:
it seems that no one is interested with this
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Murag wala gyud intresado.which is better for sgsII in terms of battery life?this governor or the hotplug?
I'm afraid I can't help with this, sorry, I do have a Question however.
I've seen people talking about Governors etc, is that something to do with the Chips in the Tegra 3?
The-Last-Hylian said:
I'm afraid I can't help with this, sorry, I do have a Question however.
I've seen people talking about Governors etc, is that something to do with the Chips in the Tegra 3?
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A governor changes when the CPU changes frequency. More time spent at lower frequencies will, of course, mean better battery life - but lower performance. The trick is to find one you like.
Read this: http://forum.xda-developers.com/showthread.php?t=1369817
It is missing a few governors I've seen (such as PegasusQ) but is fairly complete.
Check this post Pegasusq Governor

[Q] Stock CPU Speeds?!

Hi everyone, I've got a seemingly dumb question, but does the stock V510, the GPE, only have 3 cpu frequencies? All I can see is 1728mhz, 1026mhz, and 384mhz. Seriously?! I guess that helps this tablet feel so fast, but I've rooted my fair share of Android devices, and I can't remember EVER having a stock kernel with only 3 frequency steps. Any idea why this was chosen for this device?
The Horak said:
Hi everyone, I've got a seemingly dumb question, but does the stock V510, the GPE, only have 3 cpu frequencies? All I can see is 1728mhz, 1026mhz, and 384mhz. Seriously?! I guess that helps this tablet feel so fast, but I've rooted my fair share of Android devices, and I can't remember EVER having a stock kernel with only 3 frequency steps. Any idea why this was chosen for this device?
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What governed are you using? This is more of a feature than a drawback. It allows for relatively fast speeds under average load without ramping. On-demand does this.
Its the On Demand. Stock. I get that. Just weird that a 1.7 GHz processor only has 3 steps in its speeds: minimum, medium, and max.

Snapdragon 636 an underclocked version of sd 660

Is Snapdragon 636 underclocked version of sd660 CPU specific in terms of architecture etc. As cpu-z app also show 636 as sd660 .
I am just curious to know that as i want to overclock it to sd660 clock speed .
If it is underclocked version then i guess there will be no risk of overclocking .
PS : please try to answer in simple language ?
dheerajthakursr said:
Is Snapdragon 636 underclocked version of sd660 CPU specific in terms of architecture etc. As cpu-z app also show 636 as sd660 .
I am just curious to know that as i want to overclock it to sd660 clock speed .
If it is underclocked version then i guess there will be no risk of overclocking .
PS : please try to answer in simple language
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I'm fairly sure GPU is hardware-locked so you won't be able to overclock it. The only thing you are able to overclock is the CPU but you would need a custom kernel.
jadamso said:
I'm fairly sure GPU is hardware-locked so you won't be able to overclock it. The only thing you are able to overclock is the CPU but you would need a custom kernel.
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Do you own a sd 636 device ?
dheerajthakursr said:
Do you own a sd 636 device ?
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Um. Yes. The Redmi Note 5 Pro!
jadamso said:
Um. Yes. The Redmi Note 5 Pro!
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Overclocked..?
dheerajthakursr said:
Overclocked..?
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No not yet. I've spent about a week going through this forum doing my research before I root the phone and start installing those delicious ROMs.
jadamso said:
No not yet. I've spent about a week going through this forum doing my research before I root the phone and start installing those delicious ROMs.
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I have done it
It doesn't heat nor consumes significant amount of battery just worried about cpu temp while playing pubgm
Overclocking is fine (CPU only tho), and rooting isn't hard aswell. I personally don't OC cause I don't need it, gpu oc would be cool. Gonna note that the original bettery lost 12% capacity in 1.5 months, replaced it myself. Maybe fast charging (15w)/ heavy usage hurt it don't know, but new battery is just fine, so factory battery is seems to be bad...

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