Develop Bugs

Safe overclocking

First off, I know that this question has been asked before as I have searched and read various topics, but I'm not sure if additional information has been gained or new technology discovered. These are the the overclock options I have:
(MHz)
1036800
1075200
1113600
1152000
1190400
1228800
1267200
__________________
1267200 usually freezes my phone after a bit.
I work full time so battery isn't a huge issue for me, I would just like to know people's opinions on the option which provides the best performance while keeping the device stable and not DRASTICALLY reducing battery life.
Also, I'm not sure if there is any more info on sbc kernels, but if there is I would like to hear opinions on the kernel I'm currently using (sig).
Thanks everyone

Highest I go is 1152 but all phones r different.

Papa Smurf151 said:
Highest I go is 1152 but all phones r different.
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I never over clock, but that I hear is common, but anything over 1.2 typically will send you into bootloops, so don't check set on boot till you test it.

122800 isn't causing bootloops, is it safe? Tiamat evo sbc 4.03 cayniarb linuxdesk #8 won't let it overheat right?
SBC is generally accepted as safe now right? Are there other unrestricted overclock undervolt hybrid adaptive voltage scaling sbc kernels with teamwins hdmi optimizations and wimax support plus tether/hotspot with default smartass gov recommend over Tiamat?
Thanks so much for all your help
Sent from my PC36100 using Tapatalk

I don't see why you would need to overclock this phone is fast as Hell anyways its not a computer playing big ass games. Overclocking just heats and beats your phone up more.

Alright, thanks so much for your everyone
Sent from my PC36100 using Tapatalk

overclocking dhd

I have recently rooted my dhd and currently running CM7. Using the cpu setting within the performance menu I am wondering what peoples thoughts are on a noticeable but safe increase of cpu speed. its set as 1017MHz which i believe is default. I am told I can run anything up to 1500 safely. can anyone confirm this and also tell me what kind of result (performance and battery life) i should expect.
thanks

Well, I use Android Revolution HD (a sense rom, meaning heavy UI!) and i overclock to about 1.3GHz. In terms of battery life when it's awake, it seems a drain a teeny bit more readily, but I've never had a freeze on sense (quite rare)
On stock it underclocks to let the processor max at around 400MHz when the screens off, so that helps to really save a lot of battery on standby. On CM, I'd expect it'd feel more or less the same in terms of performance after you hit 1.2/1.3GHz

hmohammed43 said:
Well, I use Android Revolution HD (a sense rom, meaning heavy UI!) and i overclock to about 1.3GHz. In terms of battery life when it's awake, it seems a drain a teeny bit more readily, but I've never had a freeze on sense (quite rare)
On stock it underclocks to let the processor max at around 400MHz when the screens off, so that helps to really save a lot of battery on standby. On CM, I'd expect it'd feel more or less the same in terms of performance after you hit 1.2/1.3GHz
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thanks for the reply mate. going to try out revolution HD soon i think. have you overclocked using a third party app or is there one built into that rom?
also im a little confused by the governors. 'on demand' is the default governor. Does that mean it will only use the max selected cpu speed when necessary? would you recommend using a difference setting?
cheers

rhodri11 said:
thanks for the reply mate. going to try out revolution HD soon i think. have you overclocked using a third party app or is there one built into that rom?
also im a little confused by the governors. 'on demand' is the default governor. Does that mean it will only use the max selected cpu speed when necessary? would you recommend using a difference setting?
cheers
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The CPU is managed by the ROM itself. You can tweak it yourself by using setCPU (or similar), but I can advise you not to. Can't help you with the governors buddy, since I dunno what it is
Cheers

darude0306 said:
The CPU is managed by the ROM itself. You can tweak it yourself by using setCPU (or similar), but I can advise you not to. Can't help you with the governors buddy, since I dunno what it is
Cheers
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nice one dude

I'm running cm7 and I'm overclocked to 1.5 ghz. It's been totally fine for months.
Sent from my Motorola Startac running Atari 2600 software!

rhodri11 said:
thanks for the reply mate. going to try out revolution HD soon i think. have you overclocked using a third party app or is there one built into that rom?
also im a little confused by the governors. 'on demand' is the default governor. Does that mean it will only use the max selected cpu speed when necessary? would you recommend using a difference setting?
cheers
Click to expand...
Click to collapse
Lucky you picked a linuxhead!
The system itself has a daemon (background process built into the system) that handles overclocking. It's all explained on the page and also on this thread:
http://forum.xda-developers.com/showpost.php?p=14638641&postcount=34279
You can use another app (like SetCPU) but the daemon usually handles screen off's quicker. The governors basically determine how the processor frequency is changed. I'll explain the common ones:
Performance - Runs at highest speed, so if you have a range of 200 to 1.3G, it'll stay at 1.3G all the time, not usually the best
Ondemand - The universal default for phone overclocking, it only changes the speed up after a certain percentage of the CPU is used, and it switches on the fly, so if the CPU is used too much at 400MHz, it'll ramp it up to maybe 600 or 800, and if it's still overused, it'll put it up to maybe 1 or 1.2G
Conservative - This is like ondemand, except it makes the changes more gradual. It can give noticable lags in the foreground at times, so this is mainly used when the phone is asleep (screen off)
Smartass - This governor is like ondemand, except it'll less readily switch frequencies to higher values when it detects the screen off. This isn't really used because the overclocking daemons take into account the phone being awake or not
Basically, there isn't really a need to change governors, only really frequencies if anything. The thread, however, does tell you how to change governors.

Im using latest LeeDroid GB 3.2.1 and to be honest with the work he's done with the Kernal (3.1.8BFS) I have found that the ROM is a lot MORE responsive without me overclocking the CPU.
Im not really sure how it all works, but I guess doing this on different ROMS has its own different out comes.

overclocking has me confused too, is there really that much of a benefit in it? how much will i gain from it?

toby_lerone said:
overclocking has me confused too, is there really that much of a benefit in it? how much will i gain from it?
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There is a benefit when you use certain apps, or even sense itself. For example, I've never had sense ui freeze, or go slow. The under clocking helps to improve the rubbish battery life when your phone is asleep.
In terms of measuring the gain, I have no idea. Really, I'd think you could use a process heavy app, or benchmarking app and see.
There's also loads of guides on overclocking to help out! (that's how I got the hang of it! )
Sent from my Desire HD using XDA Premium App

For the need on OC, it depends on the kind of apps u're using. If u're happy w a non OC DHD, its totally up to u.
But for the UC, it works as a terrific battery saver, mich better/effective than other battery saver soln on market

The safe range depends on the DHD as the manufacturing changed even though same part, i'm OC 1.5GHz "On Demand" profile and under clock 245MHz on screen off "Power Save" profile.
Getting approx a day usage on Lee 2.1.

Safe voltages for my Titanium kernel setup?

Hi,
I'm a bit of a newb when it comes to undervolting, and I'd like some insight on safe values for my kernel.
I'm currently running:
PACman ROM (4.1.2 Jelly Bean)
A nice 1804Mhz overclock - my phone can handle this with very little overheating
A minimum clock of 368Mhz
sio scheduler
Lionheart CPU governor
Now, the problem I have is that when the phone isn't an amazing performer at battery life. Undervolting seems like the way to go to fix this (I like my overclock!), yet all of the apps I have seen don't work for some reason - I'm pretty sure the only way to edit voltage levels is to edit the vdd_levels file.
As I'm new to this, I'd definitely like some support in picking a voltage that is safe for my phone - if I have to sacrifice a little battery to avoid my CPU conking from lack of power I'm fine with that - and that provides at least a bit of battery boost.
Thanks in advance,
-Cameron

Limit the least to 850
Sent from my One V using xda app-developers app

Undervolting For Dummies

Ok I would really like to learn how to undervolt my phone the proper way I have read through maybe what feels like 1000 undervolting guides and I either one song understand half of what I reading or I never successfully do it right looking for much very appreciated help here (a guide, some tips, ect)
Sent from my SPH-L900 using Tapatalk 2

Kelsey Jones said:
Ok I would really like to learn how to undervolt my phone the proper way I have read through maybe what feels like 1000 undervolting guides and I either one song understand half of what I reading or I never successfully do it right looking for much very appreciated help here (a guide, some tips, ect)
Sent from my SPH-L900 using Tapatalk 2
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It's actually pretty simple. First off you need a kernel that allows undervolting. Secondly you need an application like an NSTools or STweaks however with STweaks the kernel has to support that application. Once you get in there and it shows your frequencies its going to show your millivolts as in mV. Take for example let's just say that you're 1.6GHz frequency is @1100mV you can take it down to 1075mV. And after make sure its stable if so continue to undervolt and so on and so forth. Now again those aren't real numbers. There just an example for you. Now there is a thing called overvolting which is essentially only used when you have a frequency that is unstable.
Sent from my SPH-L900 using xda app-developers app

XxLostSoulxX said:
It's actually pretty simple. First off you need a kernel that allows undervolting. Secondly you need an application like an NSTools or STweaks however with STweaks the kernel has to support that application. Once you get in there and it shows your frequencies its going to show your millivolts as in mV. Take for example let's just say that you're 1.6GHz frequency is @1100mV you can take it down to 1075mV. And after make sure its stable if so continue to undervolt and so on and so forth. Now again those aren't real numbers. There just an example for you. Now there is a thing called overvolting which is essentially only used when you have a frequency that is unstable.
Sent from my SPH-L900 using xda app-developers app
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Thank you very much I will definitely try this tomorrow at work thanks!
Samsung ??? Note 2 = A ?Best Friend ❤

Some tips:
Don't make any changes to roms, mods, kernels, etc while testing undervolting. You don't want to introduce other variables during this phase.
Go by steps of -25mV to be conservative. Do -50mV if you want to be aggressive in your testing.
You know if you've undervolted too much if you start noticing laggyness, UI studdering, random reboots, and other unexplained problems. This is why you shouldn't make other changes during the evaluation, since you wouldn't know what caused the problem.
You will need more voltage at higher MHz. It's not uncommon to undervolt more at the lower frequencies.
Once you find a safe undervolt settings, it can be a baseline for other kernels/roms. You'll still need to verify it's stable.
Sent from my SPH-L900

coiledwire said:
Some tips:
Don't make any changes to roms, mods, kernels, etc while testing undervolting. You don't want to introduce other variables during this phase.
Go by steps of -25mV to be conservative. Do -50mV if you want to be aggressive in your testing.
You know if you've undervolted too much if you start noticing laggyness, UI studdering, random reboots, and other unexplained problems. This is why you shouldn't make other changes during the evaluation, since you wouldn't know what caused the problem.
You will need more voltage at higher MHz. It's not uncommon to undervolt more at the lower frequencies.
Once you find a safe undervolt settings, it can be a baseline for other kernels/roms. You'll still need to verify it's stable.
Sent from my SPH-L900
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Thank you for the tips in going to spend my whole day off tomorrow seeing what works with my phone and what doesn't
Samsung Galaxy Note 2 = A ? Best Friend ❤??

[Q] CPU Temperature exceeding 80°C! How dangerous?

Hi guys,
I understand that some heat when running resource intensive applications and games is to be expected but I believe I've passed into the danger zone, so to speak. When playing XCOM my CPU temperature quickly exceeds 80°C. From my googling on the matter I have come to assume that a temperature as high as 80°C is dangerous for the hardware of the device, but I have had trouble finding upper threshold limits for the model itself.
I guess my questions are as follows:
1) How damaging would running the CPU at 80°C for an extended duration (1hr +) be?
2) What would you consider the max acceptable CPU temperature to be?
3) Assuming it is as bad as thought, what are my options to reduce the CPU temperature, short of avoiding the problem applications? Underclocking seems to be a common suggestion, but I get the feeling that XCOM, or similarly taxing applications, may just fail to run or become incredible sluggish under such constraints.
My device is rooted and running Lean Kernel v2.4 along with the w03Slim ROM. Found here: http://forum.xda-developers.com/showthread.php?t=2638116
I've done similar test runs in the Temasek kernel with the recommended configurations through Trickster Mod and there is no difference, the CPU still exceeds 80°C when playing XCOM. After a week or so of googling, searching the forums, and digging through device manuals I feel like I'm spinning my wheels.
Any insight or advice you all might have is greatly appreciated.

Solved!
http://forum.xda-developers.com/showpost.php?p=52464294&postcount=2495
Sent from my SM-N900T using XDA Premium 4 mobile app

Does not exceeds to 80c now?

You can try a custom kernel, i would recommend you BioShock kernel, with conservativex, max freq 2.2 ghz and undervolt 25 mV... No more over warming for me, great performance and battery life
Sent from my TWEAKED KITKAT note 3 powered by BioShock kernel

dramitt_live said:
You can try a custom kernel, i would recommend you BioShock kernel, with conservativex, max freq 2.2 ghz and undervolt 25 mV... No more over warming for me, great performance and battery life
Sent from my TWEAKED KITKAT note 3 powered by BioShock kernel
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Agree with this post, conservativex is a great governor to keep your cpu in check and not over throttle itself, also check out my thread I made here awhile back and apply the 8th post down. It really helped keep the temp down on my phone when playing graphically intensive games like dead trigger 2,riptide gp2 etc. Also if you have trickster mod or faux clock(really recommended) you can scale down your max frequency, that should really help keep it cooler and you won't see much of a performance drop (if any) while gaming or heavily using your phone.
Sent from my SM-N900T using xda premium

d12unk13astard said:
Agree with this post, conservativex is a great governor to keep your cpu in check and not over throttle itself, also check out my thread I made here awhile back and apply the 8th post down. It really helped keep the temp down on my phone when playing graphically intensive games like dead trigger 2,riptide gp2 etc. Also if you have trickster mod or faux clock(really recommended) you can scale down your max frequency, that should really help keep it cooler and you won't see much of a performance drop (if any) while gaming or heavily using your phone.
Sent from my SM-N900T using xda premium
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Does it works with KitKat?
Sent from my TWEAKED KITKAT note 3 powered by BioShock kernel

dramitt_live said:
Does it works with KitKat?
Sent from my TWEAKED KITKAT note 3 powered by BioShock kernel
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Yes I have applied it on kk roms too, phone idles and runs much cooler after applied.
Sent from my SM-N900T using Tapatalk

d12unk13astard said:
Yes I have applied it on kk roms too, phone idles and runs much cooler after applied.
Sent from my SM-N900T using Tapatalk
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Sounds great.. But i have a question.. Some settings are for ondemand based govs wich are unstable with kk... So would you recommend to try this with interactivex? Or wich one. TIA
Sent from my TWEAKED KITKAT note 3 powered by BioShock kernel