Kernel that is only undervolted but not overclocked? - T-Mobile Samsung Galaxy S II SGH-T989

Can someone post a link to a kernel that runs at the stock 1.5ghz but is undervolted? I don't care about performance. Just want the best battery life. Thanks!!
Sent from my SGH-T989 using XDA App

Almost any kernal is better in battery than stock
Sent from my SAMSUNG-SGH-I777

you can easily limit the CPU to not go over 1.5 or even 1.0
when i really want to save battery i keep CPU at 800 Mhz or 1.0 Ghz

Any of the kernels in the development section can be either under bolted or over clocked. I'm using synergy the way it comes out of the box and its great. Standby battery drain is unbelievable.
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AllGamer said:
you can easily limit the CPU to not go over 1.5 or even 1.0
when i really want to save battery i keep CPU at 800 Mhz or 1.0 Ghz
Click to expand...
Click to collapse
why dont u UV ur 1.5ghz to 1.0ghz voltage? or near there?

That would be underclocking not under volting
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AllGamer said:
you can easily limit the CPU to not go over 1.5 or even 1.0
when i really want to save battery i keep CPU at 800 Mhz or 1.0 Ghz
Click to expand...
Click to collapse
What app do you use?
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twolfekc said:
What app do you use?
Sent from my SGH-T989 using XDA App
Click to expand...
Click to collapse
in CM ROMs it's build in
in other ROMs you can use SetCPU or faux or the other one i forgot the name right now

AllGamer said:
in CM ROMs it's build in
in other ROMs you can use SetCPU or faux or the other one i forgot the name right now
Click to expand...
Click to collapse
Thanks a lot man!!!
Sent from my SGH-T989 using XDA App

AllGamer said:
in CM ROMs it's build in
in other ROMs you can use SetCPU or faux or the other one i forgot the name right now
Click to expand...
Click to collapse
Other one = System Tuner
Sent from my Juggernaut SGSII or my "Galaxy Tasked" 10.1

twolfekc said:
That would be underclocking not under volting
Sent from my SGH-T989 using XDA App
Click to expand...
Click to collapse
true, but i find it more effective than UV
yes, we can keep it at 1.5 Ghz with say -0.010v or something like that
it's just a minor hassle to tweak
you can open a Terminal in your phone and launch the command
some apps like the faux can let you control the voltage as well

Related

[Q] How fast is your Epic?

Ok, I have search, but didn't find anything like this. I am wondering for those that can overclock, what speed do you use for your daily driver? I don't mean what speed you use just to play with benchmarks.
I know the faster you overclock you have more battery drain, so answer honestly!
I'll be first, I normally run at 1.3ghz, but am now trying 1.4ghz to see how much more battery drain I will have. I love my epic, it has always been fast and stable. What I run is in my signature.
If you feel like it, list your rom, kernel, and what you use to set it. It will be cool to see how fast you guys like to run on a daily diet!
I run at 1ghz... But when aosp roms come out probly 800mhz... My phone doesnt lag at all i see no need for overclocking other than banchmarks.
Sent from my SPH-D700 using XDA App
I run at 1.2 whenever I can, it shouldn't drain your battery unless yur playing games and shhtuff.
Sent from my SPH-D700 using XDA Premium App
Same as deano, 100-800mhz conservative, 90% of the time, 100-1200 ondemand rare. I UV also so the 100-800mhz really gets great life.
I run at 1400/100 "on demand" all of the time when on Froyo. No undervolting. I have 2 stock batteries so battery life isn't my #1 priority...everything working and stability is and fortunately 1400 is totally stable for me. I saw a greater performance increase from 1300 to 1400 than I did from 1200 to 1300
Sent from my SPH-D700 using Tapatalk
JohnCorleone said:
I run at 1400/100 "on demand" all of the time when on Froyo. No undervolting. I have 2 stock batteries so battery life isn't my #1 priority...everything working and stability is and fortunately 1400 is totally stable for me. I saw a greater performance increase from 1300 to 1400 than I did from 1200 to 1300
Sent from my SPH-D700 using Tapatalk
Click to expand...
Click to collapse
I can almost echo your findings, except I have been running 1300. Out of curiosity how much more battery did you use when you jumped from 1300 to 1400 if you remember?.
I also undervolt a little more from 600 on down than 800 and up, but I rather have more stable than more undervolt. I can't believe how nice hte eipic is even against the current crop of phones. I love it!
Running "on demand" I have noticed very little difference going up to 1400 because its only there maybe 30 minutes per battery charge. It only uses that top setting when its needed. Keeping the undervolt away from those high states will ensure more stability since most of our phones require the voltage on those overclocked states like 1300 and 1400. If you get -25 or -50 stable on those high states, you are pretty lucky
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I use CFQ and run -50 on 100 - 200 - 300 - 400 - 600 and -25 on 800 - 1000 - 1200 - 1400 and is rock solid thru all of those frequencies.
Do you know if it is better to run less steps, something like 100 - 300 - 600 - 1000 - 1400 rather than how I have it set as above?
Don't forget to vote!
My phone doesn't like 1.4 jiggawatts. I stay at 1.2GHz. I'm running stock ec05 rfs with genocide. 4 hours and 10 minutes in I'm at 68%. With moderate to heavy use. I've been in bed for 2 days with a corneal abrasion. My phones the only thing I can play with lol
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mouseglider said:
I use CFQ and run -50 on 100 - 200 - 300 - 400 - 600 and -25 on 800 - 1000 - 1200 - 1400 and is rock solid thru all of those frequencies.
Do you know if it is better to run less steps, something like 100 - 300 - 600 - 1000 - 1400 rather than how I have it set as above?
Don't forget to vote!
Click to expand...
Click to collapse
I ise 100, 200,400,600,800,1000,1100 or 1120 (depends on kernel) and 1400. Its as smooth as can be so I don't try going with less frequencies
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RushAOZ said:
...1.4 jiggawatts....
Click to expand...
Click to collapse
I like that! If you don't mind, I like to use that in my sig if it works! LOL
Beasty!!!!!....EDIT...1.45 giggawatts...lol
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mouseglider said:
I like that! If you don't mind, I like to use that in my sig if it works! LOL
Click to expand...
Click to collapse
Lmao sure. Don't quote me though. I saw someone else use it and it made me rofl
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1.4 jiggawatts!!! I'm surprised my phone didn't lock up. Usually does at 1.4 lol.
Ec05 stock rfs
3.1.0.1 rooted
Genocide yo
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RushAOZ said:
1.4 jiggawatts!!! I'm surprised my phone didn't lock up. Usually does at 1.4 lol.
Ec05 stock rfs
3.1.0.1 rooted
Genocide yo
Sent from my SPH-D700 using XDA Premium App
Click to expand...
Click to collapse
The best way to test stability is to max out both sliders, delect "performance" DON'T SET ON BOOT, and run benchmarks. If it doesn't crash after a few minutes, you should be ok.
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I'm using voltage control. You mean to force the phone to stay at 1.4ghz?
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RushAOZ said:
I'm using voltage control. You mean to force the phone to stay at 1.4ghz?
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Click to expand...
Click to collapse
yup exaxtly. do that for a few benchmark tests and try YouTube, etc....pushing the envelope on this one...
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I'm at 1.3ghz. CM7 doesn't like 1.4 for whatever reason.
Not undervolted, but i'm getting 24 hours with 65% leftover.
I'm quite happy!
JohnCorleone said:
yup exaxtly. do that for a few benchmark tests and try YouTube, etc....pushing the envelope on this one...
Sent from my SPH-D700 using XDA Premium App
Click to expand...
Click to collapse
Trap lol got some lock ups during dungeon defenders. All's good at 1.3 though. Thanx for the heads up dood!
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darkierawr said:
I'm at 1.3ghz. CM7 doesn't like 1.4 for whatever reason.
Not undervolted, but i'm getting 24 hours with 65% leftover.
I'm quite happy!
Click to expand...
Click to collapse
Damn darkie, you can't get much better than that!
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SetCPU, What are your settings?

Anyone try SetCPU after rooting? I can adjust the min down to 192mhz. Anyone have any idea how safe it is yet as far as sleep of death?
Sorry if this is not in the correct forum
You can test whatever you'd like. I tried it too so just don't check the option for set at boot.
-Hercules composed this post and threw it at your face to be read-
Just worried since it is my alarm clock too, a sleep of death could lead to a sleep of no job
Some believe tegrak is better for samsungs
Sent from my SGH-T989
i believe there was something about needing a custom kernel that supports a cpu oc app. something about it not engaging both cores... just one of them. somebody out there knows more than me about this i'm sure.
I think i remember dsexton702 talkin about needing a kernel for tegrak to function properly
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luckyduck69 said:
i believe there was something about needing a custom kernel that supports a cpu oc app. something about it not engaging both cores... just one of them. somebody out there knows more than me about this i'm sure.
Click to expand...
Click to collapse
A custom Kernel is only needed Fri overclocking.
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Had mine set on 192 min all night and no issues with waking up so far.
mbernusg said:
Some believe tegrak is better for samsungs
Sent from my SGH-T989
Click to expand...
Click to collapse
Tegrak probably won't work properly if I'm correct set cpu or oc/uv beater should be fine. Tegrak was used for samsung processors. Qualcomm processors are able to scale better at lower or higher frequencies.
---------- Post added at 09:00 AM ---------- Previous post was at 08:55 AM ----------
luckyduck69 said:
i believe there was something about needing a custom kernel that supports a cpu oc app. something about it not engaging both cores... just one of them. somebody out there knows more than me about this i'm sure.
Click to expand...
Click to collapse
It will never engage both cores that is asynchronous. Both processors work independently from each other. This is why you see lag. Both processors are never at their full potential. Qualcomm design the processors for best battery life in mind with good performance. There is a way to get both cores to be synchronized though if it matters to you. But expect worst battery life.
Almost forgot we have a snapdragon lol
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Moved to proper forum.
I put mine at 384 min and 1350 max .
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mbernusg said:
Almost forgot we have a snapdragon lol
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Click to expand...
Click to collapse
The one we have should also overclock very nicely. The APQ8060 is the same one in the Touchpad and that one easily does 1.9Ghz.
When I installed setcpu and had it auto dectect speeds It atuomatically set the min at the max and the min at the highest clock speed. Is that normal? Did anyone else notice that?
hazard99 said:
When I installed setcpu and had it auto dectect speeds It atuomatically set the min at the max and the min at the highest clock speed. Is that normal? Did anyone else notice that?
Click to expand...
Click to collapse
I noticed that too but lowered the min and was able to setup profiles
agrover5279 said:
I noticed that too but lowered the min and was able to setup profiles
Click to expand...
Click to collapse
That's normal. I have noticed the same thing on the g2x and g2. I wouldn't worry about it unless it won't let you change it.
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I have mine set @ max 1512 min 384. Temps range from 77-84.
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I have mine at 192 min and 1512 Max with no issues
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Is it currently safe to overclock the phone using this app?
saltmine said:
Is it currently safe to overclock the phone using this app?
Click to expand...
Click to collapse
Yes. But you would need a kernel that supports Overclocking and Undervolting.
Sent from my SGH-T989 using Tapatalk

Cm7 and over clocking

So I have a quick question for people running cm7. I am running cm7 with aveon 6 kernal. I was just wondering what over clock speeds do you guys use?
Sent from my Incredible 2 using XDA App
Dl no frills CPU and test for yoursef, each phone runs defferently and with no frills u can set as boot but if it is not a proper shutdown it will not set just in case it was due to the oc/ UV. Hope this helps and I run 1.5 ghz
Tap'n on miui incredible 2
Plus one on NoFrills. I'm using Aeroevans .7bfs kernel set at 1.2ghz and using the Sio I/O on nightly 133. This works well for me. Good balance of speed and battery life.
bsannes said:
So I have a quick question for people running cm7. I am running cm7 with aveon 6 kernal. I was just wondering what over clock speeds do you guys use?
Sent from my Incredible 2 using XDA App
Click to expand...
Click to collapse
OCing over 1.2 is useless unless you want battery to die fast
Running tiamat 1ghz gives me 30hrs on moderate
1.2 about lil more than a day
Tiamat is supposedly come out with new kernel this weekend or next.
Sent from my Incredible 2 using xda premium
I noticed you can't undervolt with areovans kernal. Or am I just using the wrong app? cause undervolt options don't show in voltage control
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tk1o48 said:
I noticed you can't undervolt with areovans kernal. Or am I just using the wrong app? cause undervolt options don't show in voltage control
Sent from my Incredible 2 using xda premium
Click to expand...
Click to collapse
I'm using oc/uv beater app with aerovans. 7 bfs and can undervolt. Which app are you using?
With cm7 I actually like to underclock to around 800 with interactiveX. I have hit 1.9 stable using the smooth ass governor, and when I want to over clock I usually go for 1.2 or 1.4
Sent from my cyancredible 2.
Jeez, guys. Y'all are gonna burn out your processors running at speeds like that.
AgalychnisCallidryas said:
Jeez, guys. Y'all are gonna burn out your processors running at speeds like that.
Click to expand...
Click to collapse
I ran my Eris for over a year at 768. I'm running my inc2 at 1.4 and it never gets hot or anything...actually it runs cooler cause my my processor keeps up with my RAM.
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Un1c0de said:
I'm using oc/uv beater app with aerovans. 7 bfs and can undervolt. Which app are you using?
Click to expand...
Click to collapse
Using voltage control free version. I recall on other kernals I was able to undervolt. I can't find that app in the market?
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Best Kernel for Overclocking Galaxy Nexus

I'm thinking of flashing a different kernel to my Samsung Galaxy Nexus so I can overclock the CPU/GPU. I've noticed that franco.Kernel and Trinity seem to be among the most popular kernels, but I'm not sure which one to choose. In your opinion, what is the best kernel for overclocking and why? FWIW, I have the Verizon model of the phone (toro) and am currently running CyanongenMod 4.1.2, which is based off of Android 4.2.2.
- Shadowz1218
TIAS.
a maguro sent this.
beekay201 said:
TIAS.
a maguro sent this.
Click to expand...
Click to collapse
What's that? lol
Lean kernel has overclock up to 1.65 ghz.
Sent from a juiced Galaxy Nexus
Shadowz1218 said:
What's that? lol
Click to expand...
Click to collapse
Try It And See. TIAS.. GlaDOS kernel can overclock to 2.0 GHz.. The highest I ever saw. But my phone didn't like it. As for the rest you just have to try and see which kernel suits you best.
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mrgnex said:
Try It And See. TIAS.. GlaDOS kernel can overclock to 2.0 GHz.. The highest I ever saw. But my phone didn't like it. As for the rest you just have to try and see which kernel suits you best.
Sent from my Galaxy Nexus using XDA Premium HD app
Click to expand...
Click to collapse
I'll have to give it a try... Also, what app should I use for benchmarking? As you can see I'm new to the whole overclocking thing lol
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Shadowz1218 said:
I'll have to give it a try... Also, what app should I use for benchmarking? As you can see I'm new to the whole overclocking thing lol
Sent from my Galaxy Nexus using xda app-developers app
Click to expand...
Click to collapse
Antutu or CF bench are good apps.. And a warning: overclocking will decrease the life of your phone! Be careful! If you want to use your phone a little longer I wouldn't do it (I wouldn't anyway because I think this phone is very fast especially with Android 4.3)..
Sent from my Nexus 10 using XDA Premium HD app
mrgnex said:
Try It And See. TIAS.. GlaDOS kernel can overclock to 2.0 GHz.. The highest I ever saw. But my phone didn't like it. As for the rest you just have to try and see which kernel suits you best.
Sent from my Galaxy Nexus using XDA Premium HD app
Click to expand...
Click to collapse
Hi,
I've decided to bump this thread because all other GNex OC threads are very dated.
I recently received the extended battery 200mah and I'm ready to overclock. I wish to retain battery life to have screen time 3-4 hour on moderate usage.
I'm current rooted on stock ROM, and I wish to simply stay with stock ROM provided battery life will remain the same (perhaps I have to undervolt)
I want to hit 1.5GHz CPU and 384MHz GPU...which is what the OMAP and PowerVR SoC's true default clocks.
Given my circumstances of stock ROM, which kernel would give me the best stability/battery life? Any kernel that somehow has OC settings built in or do they all require me to buy setCPU?
twitchyzero said:
Hi,
I've decided to bump this thread because all other GNex OC threads are very dated.
I recently received the extended battery 200mah and I'm ready to overclock. I wish to retain battery life to have screen time 3-4 hour on moderate usage.
I'm current rooted on stock ROM, and I wish to simply stay with stock ROM provided battery life will remain the same (perhaps I have to undervolt)
I want to hit 1.5GHz CPU and 384MHz GPU...which is what the OMAP and PowerVR SoC's true default clocks.
Given my circumstances of stock ROM, which kernel would give me the best stability/battery life? Any kernel that somehow has OC settings built in or do they all require me to buy setCPU?
Click to expand...
Click to collapse
They all use setcpu or trickster mod. Regarding the kernel you just should try some out.
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mrgnex said:
They all use setcpu or trickster mod. Regarding the kernel you just should try some out.
Sent from my Galaxy Nexus using XDA Premium HD app
Click to expand...
Click to collapse
What type of OC are you running?
Do you actually notice it day to day usage? I cant think of any apps that could benefit from it besides gaming which I do very little of on mobile.
How has it affected your battery life?
twitchyzero said:
What type of OC are you running?
Do you actually notice it day to day usage? I cant think of any apps that could benefit from it besides gaming which I do very little of on mobile.
How has it affected your battery life?
Click to expand...
Click to collapse
I don't OC myself. I want my gnex to last some longer. OC will wear out tour CPU.. I die it once for a day maybe two but didn't notice any improvement. I was at 1.5 GHz or something.. I think it may have some speed improvements but your battery will drain like a maniac. If you don't game I suggest you underclock: even more battery life with no speed loss!!
Sent from my Galaxy Nexus using XDA Premium HD app
Franco.kernel. Best kernel i've used
Sent from my Galaxy Nexus using Tapatalk 4.

Making 1.86 ghz model 2.3

also it would be nice to have gpu oc. lets start discusion
Would that require physically changing the processor?
Sent from my ASUS_Z00AD using XDA Free mobile app
i think you want to change your cpu frequency from 2.3ghz to 1.8
try to use kernel adiutor then change your max Frequency to 1833Mhz
download at google playstore make sure you are rooted
knoneNull said:
i think you want to change your cpu frequency from 2.3ghz to 1.8
try to use kernel adiutor then change your max Frequency to 1833Mhz
download at google playstore make sure you are rooted
Click to expand...
Click to collapse
He wants to over clock his 1.8ghz model to 2.3ghz.
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quicksilver53 said:
Would that require physically changing the processor?
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Click to expand...
Click to collapse
obscuresword said:
He wants to over clock his 1.8ghz model to 2.3ghz.
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Click to expand...
Click to collapse
i see i thought his model is 2.3 if then use custom kernel with OC support
lalkamw3 said:
also it would be nice to have gpu oc. lets start discusion
Click to expand...
Click to collapse
It maybe possible, but honestly it depends on who is designing the custom kernel and the processor itself. If it is stable and safe to keep the phone at 2.3 GHz for a long time without any negatives (like overheating) then again it could happen. The highest overclock I've seen was a boost of .5ghz on an older device.
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obscuresword said:
It maybe possible, but honestly it depends on who is designing the custom kernel and the processor itself. If it is stable and safe to keep the phone at 2.3 GHz for a long time without any negatives (like overheating) then again it could happen. The highest overclock I've seen was a boost of .5ghz on an older device.
Sent from my SAMSUNG-SGH-T989 using XDA Free mobile app
Click to expand...
Click to collapse
yes i hope our kernel developer for zenfone 2 will add support OC, both CPU and GPU that will be nice feature, but over heating might be a problem because intel phone is easy heating even stock kernel, with playing small amount of time my phone get heat thats not healthy for our device..
knoneNull said:
yes i hope our kernel developer for zenfone 2 will add support OC, both CPU and GPU that will be nice feature, but over heating might be a problem because intel phone is easy heating even stock kernel, with playing small amount of time my phone get heat thats not healthy for our device..
Click to expand...
Click to collapse
Yeah. I want to know if it would match the 4gb of ram in performance.
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