Undervolting - AT&T Samsung Galaxy Note I717

I am interested in undervolting to save some battery life. But don't know much about it. If you use system tuner pro could you screen shot some good stable settings?
Thank you
Sent from my SGH-I717R using Tapatalk

kevinjgray88 said:
I am interested in undervolting to save some battery life. But don't know much about it. If you use system tuner pro could you screen shot some good stable settings?
Thank you
Sent from my SGH-I717R using Tapatalk
Click to expand...
Click to collapse
Read up on undervolting. Everyone had a different phone.what is stable for one person might not be stable got your phone. you got to learn the limits of your phone.
Sent from my SAMSUNG-SGH-I717 using XDA

OK thanks could you point me in the direction of a reliable source
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kevinjgray88 said:
OK thanks could you point me in the direction of a reliable source
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Click to expand...
Click to collapse
The best way to undervolt is to set your values and use the phone for a day or two. If it runs normal without freezing or resetting etc... Low the values a little more then use it for another couple days. Just got little by little and eventually you'll have it stable but still saving a ton of bat life. Personally i like to use setcpu and have it limit the cpu to like 400ghz with the display off. It makes the phone lag if you're trying to listen to music with the screen off but i don't do that very often. Saved me a decent amount of bat life on my OC'd atrix
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Related

[Q] CPU Underclocking Question

This may be a dumb question but has underclocking a CPU been shown to damage it at all? Be it longterm or short? I know excessive overclocking can take it's toll on the life of a processor and was just wondering if the opposite was true also.
Sent from my MB855 using xda premium
Well I'll answer with my common sense: I don't see a negative effect on the chip. Underclocking too much could effect your performance and might cause reboots. Best way to go about it is trial and error. Find a stable setting and go from there.
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radrian92 said:
Well I'll answer with my common sense: I don't see a negative effect on the chip. Underclocking too much could effect your performance and might cause reboots. Best way to go about it is trial and error. Find a stable setting and go from there.
Sent from my MB855 using xda premium
Click to expand...
Click to collapse
I'm not asking about stability...I'm asking about actual damage. I'm aware of what underclocking does to phone performanne. I'm asking if someone knows either from experience or from information available somewhere if it can physically damage the processor...not just an assumption...but thank you anyhow.
Sent from my MB855 using xda premium
Underclocking does not damage anything hardware wise. In fact all recent processors do it very often for energy efficiency reasons. Your phone its probably doing it right now. It will go to its stock rated speed (1 GHz for photon) when you run a game or something else system intensive and it will clock back down to 216 GHz (lowest stock rated speed) when you quit or anywhere imbetween depending on load.
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EDIT: Meant 216 MHz. Sorry.
MultiDev said:
Underclocking does not damage anything hardware wise. In fact all recent processors do it very often for energy efficiency reasons. Your phone its probably doing it right now. It will go to its stock rated speed (1 GHz for photon) when you run a game or something else system intensive and it will clock back down to 216 GHz (lowest stock rated speed) when you quit or anywhere imbetween depending on load.
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Click to collapse
Holy crud, 216 ghz????
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You cant underclock below what it was designed for and my regular kernels keep voltage below safe values so.....
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MultiDev said:
Underclocking does not damage anything hardware wise. In fact all recent processors do it very often for energy efficiency reasons. Your phone its probably doing it right now. It will go to its stock rated speed (1 GHz for photon) when you run a game or something else system intensive and it will clock back down to 216 GHz (lowest stock rated speed) when you quit or anywhere imbetween depending on load.
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Click to collapse
Now this makes sense...thank you.
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magui43212 said:
Holy crud, 216 ghz????
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Click to collapse
Its 216 Mhz...lol
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Yeah it shouldn't really have to much of an effect seeing as you are basically allowing it to do less. Just as long as you are not running to much for it to handle at its underclocked speed.... In theory at least.
I run both OC and UC setups depending upon what I'm doing IE "Charging" or "Screen off". And I've yet to see any negative effects.
Well seeing uderclocking makes it so its "walking" instead of "running" so it should be able to keep its "breath" longer.. less stress does usally me longer life. So i would say it helps your phone life overall and battery life longer overall
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No its like running with less weight
Damanis1 said:
Well seeing uderclocking makes it so its "walking" instead of "running" so it should be able to keep its "breath" longer.. less stress does usally me longer life. So i would say it helps your phone life overall and battery life longer overall
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Sent from my MB855 using XDA App

Post Your Battery Stats

With all these news leaks and roms available now it would be nice to know what people get for battery life across the different leaks and roms.
Post a pic of your battery usage and screen on time and what your using to get it
My setup is in my signature
These are the first stats since i started trying anthrax and it was all going good till the second day. i have no clue why
there are a few reasons why i created a new thread:
1.most people werent posting pic but instead just stats
2.the thread was ancient, created in november and the last post was in
late january, bumped in feb by a trolling gnex user
Battery life isnt so hot.
derek4484 said:
Battery life isnt so hot.
Click to expand...
Click to collapse
thats pretty good considering you have 4g. in connecticut the only places that have 4g are the capital city and the surrounding towns.
Inef 1.3 with incredikernal, undervolted, desensed, and on extended battery
clemson91 said:
Inef 1.3 with incredikernal, undervolted, desensed, and on extended battery
Click to expand...
Click to collapse
wow thats sweet. do you mind PM'ing me your voltage table and the governor you use for incredikernel. Also what did you use to desense?
Po1soNNN said:
wow thats sweet. do you mind PM'ing me your voltage table and the governor you use for incredikernel. Also what did you use to desense?
Click to expand...
Click to collapse
I used incredicontrol to undervolt everything by 50 or 75 in incredicontrol. Using stock freqs, and ondemand governor. And used danuntzz's tool to do most of the desensing/debloating.
http://forum.xda-developers.com/showthread.php?t=1382630
I also used Romtoolbox's auto start manager to keep things from opening in the background, it's probably the most helpful app I've used. Thanks next I just need the mugen 4000mAh so I'd only need to charge it on the weekends, but that thing is really expensive for a battery.
I thought these were pretty good numbers for locked and stock.
Sent from my ADR6425LVW using xda premium
Don't ask me how. Don't ask me why. This is April androidpolice leak.
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these stats are decent
drtchocky said:
I thought these were pretty good numbers for locked and stock.
Sent from my ADR6425LVW using xda premium
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Click to collapse
For locked and stock that's awesome!
clemson91 said:
I used incredicontrol to undervolt everything by 50 or 75 in incredicontrol. Using stock freqs, and ondemand governor. And used danuntzz's tool to do most of the desensing/debloating.
http://forum.xda-developers.com/showthread.php?t=1382630
I also used Romtoolbox's auto start manager to keep things from opening in the background, it's probably the most helpful app I've used. Thanks next I just need the mugen 4000mAh so I'd only need to charge it on the weekends, but that thing is really expensive for a battery.
Click to expand...
Click to collapse
ill have to try that I've been having problems with wakelocks
fenguepay said:
Don't ask me how. Don't ask me why. This is April androidpolice leak
Sent from my ADR6425LVW using xda premium
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Click to collapse
What rom is that?
oblivion12 said:
these stats are decent
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Click to collapse
Those are good considering your only at 64
Sent from my ADR6425LVW using XDA
Here's mine. All 4G usage. Pretty normal for me with extended batteries.
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I wasn't expecting this, its still better than before but I expected more
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Ragnell said:
I wasn't expecting this, its still better than before but I expected more
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Click to collapse
I need to figure out what's wrong with mine. I'm getting results like this with the extended VZ battery. I have to keep it plugged in all the time. Even with 4G disabled (3G still on), no wifi, no bluetooth; most days it will be dead in 8-10 hours.
Currently running 5/1 leak radios (RUU'd last week), running BAMF ICS 2.1 with the kernel that came with the Rom (1512mhz max, 384mhz min). Most syncing besides gmail is disabled.
I'll get a pic whenever i go unplugged again. I'm working remotely this week and am keeping it plugged up during conference calls.
billybob275 said:
I need to figure out what's wrong with mine. I'm getting results like this with the extended VZ battery. I have to keep it plugged in all the time. Even with 4G disabled (3G still on), no wifi, no bluetooth; most days it will be dead in 8-10 hours.
Currently running 5/1 leak radios (RUU'd last week), running BAMF ICS 2.1 with the kernel that came with the Rom (1512mhz max, 384mhz min). Most syncing besides gmail is disabled.
I'll get a pic whenever i go unplugged again. I'm working remotely this week and am keeping it plugged up during conference calls.
Click to expand...
Click to collapse
Same for me on the battery live, currently on clean Rom pro 4.4, now sure what radios and ruu I'm on since I'm still new to the HTC side of phone nodding but ill post it when I get home
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I'm wondering what the stats are for the newest leak because I'm thinking of upgrading
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clemson91 said:
I used incredicontrol to undervolt everything by 50 or 75 in incredicontrol. Using stock freqs, and ondemand governor. And used danuntzz's tool to do most of the desensing/debloating.
http://forum.xda-developers.com/showthread.php?t=1382630
I also used Romtoolbox's auto start manager to keep things from opening in the background, it's probably the most helpful app I've used. Thanks next I just need the mugen 4000mAh so I'd only need to charge it on the weekends, but that thing is really expensive for a battery.
Click to expand...
Click to collapse
What options did you pick while using that Rom toolbox application?
Sent from my ADR6425LVW using Tapatalk 2
Lol looks like I have the worst out of everyone. My brightness is at a little less than a quarter, and I'm not overclocked.
EDIT: A bit more information: standard battery, no calls, no games/videos, wifi on the whole time.
Sent from my ADR6425LVW using XDA Premium.
SteveG12543 said:
Lol looks like I have the worst out of everyone. My brightness is at a little less than a quarter, and I'm not overclocked.
EDIT: A bit more information: standard battery, no calls, no games/videos, wifi on the whole time.
Sent from my ADR6425LVW using XDA Premium.
Click to expand...
Click to collapse
what rom? if your not on clean rom de you should try that or if you dont mind waiting for official ics try a gb rom with a modded kernel. Makes a HUGE difference.
Po1soNNN said:
what rom? if your not on clean rom de you should try that or if you dont mind waiting for official ics try a gb rom with a modded kernel. Makes a HUGE difference.
Click to expand...
Click to collapse
I'm on Wildstangs TwiZed SenZes 1.4 currently. I was thinking about switching ROMs soon, I'll give Clean ROM a shot. I'm all set with GB, haven't been on that in forever lol.
Sent from my ADR6425LVW using XDA Premium.
SteveG12543 said:
I'm on Wildstangs TwiZed SenZes 1.4 currently. I was thinking about switching ROMs soon, I'll give Clean ROM a shot. I'm all set with GB, haven't been on that in forever lol.
Sent from my ADR6425LVW using XDA Premium.
Click to expand...
Click to collapse
that sounds like a rom from the first ics leak which has bad battery and heat issues (for some). so yeah try a newer one

Looks like the 1.2 S4 CPU chip we have is just an underclocked...

Of the 1.5 s4 in the One X... I have my incredible 4g overclocked to 1.5 and it runs smooth as butter and stable. Ran through stress tests and benchmarks and its a go....
Sent from my ADR6410LVW using Tapatalk 2
If you happen to keep running this for a full day, would you mind reporting back how much the overclock affects the battery life? Thanks a lot for this, it's great news!
Sent from my ADR6410LVW using xda app-developers app
depending on usage, I imagine it would be minimal. I assume the CPU underclocks itself when idle and only goes up to 1.5 during heavy usage like playing a game or maybe launching an app. so if you aren't doing this most of the time, then I would imagine the power usage would be pretty much the same. I'd be more interested in how much hotter the phone gets when playing a game.
polarimetric said:
If you happen to keep running this for a full day, would you mind reporting back how much the overclock affects the battery life? Thanks a lot for this, it's great news!
Sent from my ADR6410LVW using xda app-developers app
Click to expand...
Click to collapse
No problem will do so tonight
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I will let you know about that as well... So far its running the same... No extra heat to report
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Here is an update at 3:15pm eastern... I took it off the charger at 8 this morning..
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Hmm... That is a little bit more of an effect than I expected.
Of course, we will probably be able to minimize the effect overclocking has on battery life by installing custom kernels (once we have them) with more battery efficient CPU governors. As far as I know, the default CPU governor for Android is still ondemand, which scales up to the maximum frequency very easily. Something like smartassv2 or lazy would probably do a better job.
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Here is the final score at 4%... My fiance was playing angry birds on my phone for 2hrs straight...
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Here is the now the final final final one lol
And still running lol
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how do you overclock this phone?
j13smiley said:
how do you overclock this phone?
Click to expand...
Click to collapse
There isba development section... Look for the thread that says
OC 1.8...
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Is my rezound just defective?

So I've been struggling with battery life on this rezound since I purchased it. It does get hot every now and then sometimes for no reason. I was waiting for aosp to come along to determine if it was just sense or the phone itself but since its not fully operational and makes my rezound hot as hell, I've stuck with sense roms for my day to day. The following screen shots are venom Rom desensed by me, including no weather, or facebook. The only thing syncing manually is gmail. That's it. No gaming here either. Downloaded a 7mb song, listened to mp3s with headphones and cruised the web a bunch.
Sent from my ADR6425LVW using xda premium
That's about what I had using viperrez, although it seems your phone is discharging quickly when screen is off. I'd recommend under clocking when screen off to about 500mhz that works for me. Doesn't help with the screen on time though
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metalmike6 said:
So I've been struggling with battery life on this rezound since I purchased it. It does get hot every now and then sometimes for no reason. I was waiting for aosp to come along to determine if it was just sense or the phone itself but since its not fully operational and makes my rezound hot as hell, I've stuck with sense roms for my day to day. The following screen shots are venom Rom desensed by me, including no weather, or facebook. The only thing syncing manually is gmail. That's it. No gaming here either. Downloaded a 7mb song, listened to mp3s with headphones and cruised the web a bunch.
Sent from my ADR6425LVW using xda premium
Click to expand...
Click to collapse
1.) sense 4 is a MAJOR battery hog. id advise not to use ut unless your showing off
2.) i usually get 2hrs screen on, so id say NOT defective
3.) if you want like an extra 30-60 mins, try aosp. its fast and good on battery
hope this helps
Thanks for the replies guys I appreciate it. I did forget to mention something though... This is with the extended battery I know 2 hours would be about right on standard but I would think the extended should yield more no?
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metalmike6 said:
Thanks for the replies guys I appreciate it. I did forget to mention something though... This is with the extended battery I know 2 hours would be about right on standard but I would think the extended should yield more no?
Sent from my ADR6425LVW using xda premium
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Click to collapse
Most likely yes, isn't the extended battery 1.5x? Either way, battery consumption is hard to perfect. Like I said maybe underclock or find a battery saving build. Prop script to try I know system tuner pro has one built in.
Sent from my ADR6425LVW using xda app-developers app
I thought we shouldn't underlock yet because of the perflock bug? Or did that get fixed?
carngeX said:
I thought we shouldn't underlock yet because of the perflock bug? Or did that get fixed?
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Click to collapse
Some people experience overheating, I personally have never experienced negative effects from using a cpu governor
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Faux Kernel vs Nightmare Kernel on ViperAmaze

I'm just curious to see everyone's experience with the Faux kernel as opposed to the one that comes pre-installed.
Sent from my HTC_Amaze_4G using xda app-developers app
Capgun_Homicide said:
I'm just curious to see everyone's experience with the Faux kernel as opposed to the one that comes pre-installed.
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Click to expand...
Click to collapse
You have to read xda rules again.. Your free to use both of them and see it for your self without asking which is best in public!!
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Capgun_Homicide said:
I'm just curious to see everyone's experience with the Faux kernel as opposed to the one that comes pre-installed.
Sent from my HTC_Amaze_4G using xda app-developers app
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Click to collapse
I think they're both great you can't go wrong with either kernel. It's like choosing a lamborgini or ferrari, they're both awesome but it truly comes down to preference.
I think I got better battery with faux 31 but I under clocked and undervolted so I can't do a fair battery life test.
Sent from my HTC_Amaze_4G using Tapatalk 2
SuperAfnan said:
I think they're both great you can't go wrong with either kernel. It's like choosing a lamborgini or ferrari, they're both awesome but it truly comes down to preference.
I think I got better battery with faux 31 but I under clocked and undervolted so I can't do a fair battery life test.
Sent from my HTC_Amaze_4G using Tapatalk 2
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Click to collapse
I've noticed better battery life as well; not majorly, but noticeably. Although I feel it also has a little perfomance drop. Could just be me, though.
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Sorry for a question within a question, but what does undervolting/overvolting do? I've only ever tampered with MHz frequencies.
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Capgun_Homicide said:
Sorry for a question within a question, but what does undervolting/overvolting do? I've only ever tampered with MHz frequencies.
Sent from my HTC_Amaze_4G using xda app-developers app
Click to expand...
Click to collapse
Don't worry.
Undervolting is basically adjusting the voltages so the cpu uses less voltage aka electricity. It helps a little but it can make your phone unstable so watch out. Of you undervolt use the system tuner app on the market. You should definitely under clock if you want to save power too. When you undervolt be sure to underclock, and don't do it too low or your phone might freeze! That's why your shouldn't go so extreme on it.
Overvolting is basically adding more voltage to the cpu. There is no point in doing it for our amazes to be honest. It is already a battery hog. I guess it can help if you want to over clock a lot but there is absolutely no point in doing that.
In older legacy phones if you wanted to over clock because the cpu would be so weak, like 600mhz then you would have to overvolt to over clock to like 1ghz if you were lucky. Our devices are 1.5 ghz dual core and sense isn't THAT bad. There's no point in doing overvolt in this phone though.
PS, check out my rom in the development section.
Sent from my HTC_Amaze_4G using Tapatalk 2
SuperAfnan said:
Don't worry.
Undervolting is basically adjusting the voltages so the cpu uses less voltage aka electricity. It helps a little but it can make your phone unstable so watch out. Of you undervolt use the system tuner app on the market. You should definitely under clock if you want to save power too. When you undervolt be sure to underclock, and don't do it too low or your phone might freeze! That's why your shouldn't go so extreme on it.
Overvolting is basically adding more voltage to the cpu. There is no point in doing it for our amazes to be honest. It is already a battery hog. I guess it can help if you want to over clock a lot but there is absolutely no point in doing that.
In older legacy phones if you wanted to over clock because the cpu would be so weak, like 600mhz then you would have to overvolt to over clock to like 1ghz if you were lucky. Our devices are 1.5 ghz dual core and sense isn't THAT bad. There's no point in doing overvolt in this phone though.
PS, check out my rom in the development section.
Sent from my HTC_Amaze_4G using Tapatalk 2
Click to expand...
Click to collapse
I just saw it in Venom Tweaks and was curious. The most I underclock to is 1 GHz; cuts down the CPU maximum by a third and doesn't hinder performance to much. What voltage would you recommend at that clock speed?
P.S. I have I plan on flashing it to try it out when I get WiFi access. Trying to cut down data usage since I don't have WiFi at home.
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Capgun_Homicide said:
I just saw it in Venom Tweaks and was curious. The most I underclock to is 1 GHz; cuts down the CPU maximum by a third and doesn't hinder performance to much. What voltage would you recommend at that clock speed?
P.S. I have I plan on flashing it to try it out when I get WiFi access. Trying to cut down data usage since I don't have WiFi at home.
Sent from my HTC_Amaze_4G using xda app-developers app
Click to expand...
Click to collapse
1ghz is perfect. As for voltage it really varies but I subtract 75 or 50 mv from all voltages.
PS. Oh nice, hope you get wifi soon then.
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