Could some give me a quick rundown on undervolting a kernel. I'm using faux's 0.4.2 oc/uv cm7 kernel. From my understanding its already undervolted but I'm confused about whether I should/can adjust those settings for better results or if I should leave them alone.
Info greatly appreciated.
Sent from my LG-P999 using xda premium
Each chip is built differently, so you have to experiment on that yourself. That kernel may already be undervolted but it may not be right for you. I say adjust until you hit instability and then go from there.
tweeklulz said:
Each chip is built differently, so you have to experiment on that yourself. That kernel may already be undervolted but it may not be right for you. I say adjust until you hit instability and then go from there.
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Sorry to jump in on this thread as well, but could you give us some info on how you would undervolt a kernel?
I have setcpu installed, is that enough? Is it possible to break my phone?
barqers said:
Sorry to jump in on this thread as well, but could you give us some info on how you would undervolt a kernel?
I have setcpu installed, is that enough? Is it possible to break my phone?
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Click to collapse
Yes anytime you make you phone do something it didn't do from the factory there is a chance you could damage your device..its thx to all the great devs and people that test that make it easier and less likely also the more you read and understand what it is you are actually doing to the device helps alot!
If you have a kernel able to be overclocked/undervolted yes just use set CPU to adjust the settings.
All chips are different just cause a specific setting is working for someone else means it will work the same for you!
That being said I use:
Trigger 8/22 rom with faux123'a 0.4.2 kernel.
My settings:
Max-1408mhz
Min-389mhz
And have 1.1 GHz down to 389 mhz undervolted by 50 and no undervolt above 1.1
also have different profiles set for screen off and in call..
Good luck how this helps..
Sent from my LG-P999 using xda premium
MisfitX said:
Yes anytime you make you phone do something it didn't do from the factory there is a chance you could damage your device..its thx to all the great devs and people that test that make it easier and less likely also the more you read and understand what it is you are actually doing to the device helps alot!
If you have a kernel able to be overclocked/undervolted yes just use set CPU to adjust the settings.
All chips are different just cause a specific setting is working for someone else means it will work the same for you!
That being said I use:
Trigger 8/22 rom with faux123'a 0.4.2 kernel.
My settings:
Max-1408mhz
Min-389mhz
And have 1.1 GHz down to 389 mhz undervolted by 50 and no undervolt above 1.1
also have different profiles set for screen off and in call..
Good luck how this helps..
Sent from my LG-P999 using xda premium
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Click to collapse
Thank you for such a detailed explanation! I'll be more weary of fooling around with settings. I'll probably set mine similar to yours.
Thanks everyone. I understood that setcpu would be used for the changes I was more wondering what the changes would do. Like undervolting by 50 for instance, what does that give as far as battery life? Im a moderate to heavy user and I only get roughly 8 hours off the charger before it needs to be back on, great signal all day too.
I suppose I'll just have to tinker with it till I get crashes then adjust from there.
Sent from my LG-P999 using xda premium
wgrant said:
Thanks everyone. I understood that setcpu would be used for the changes I was more wondering what the changes would do. Like undervolting by 50 for instance, what does that give as far as battery life? Im a moderate to heavy user and I only get roughly 8 hours off the charger before it needs to be back on, great signal all day too.
I suppose I'll just have to tinker with it till I get crashes then adjust from there.
Sent from my LG-P999 using xda premium
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How do u get the undervoltage adjustment? i have set cpu and when i try the voltage button on set cpu, i got forced closed. Thanks in advance.
Sounds like a bad install, try uninstalling setcpu then re-installing it or fix permissions in CWM or terminal
su
fix permissions
Used to have that issue too. Try the setcpu available here on the forums, I think that's the one the worked for me.
Sent from my LG-P999 using xda premium
Related
So I found a kernel on the Fascinate forums that was built off of our EC10 froyo source that was from nemesis2all and I saw that he had added the ability to overclock and undervolt from within the ROM so I installed it just trying (backed up of course) and found that it does indeed work.
I then got the Voltage control app from the market and started playing around doing Quadrant scores throughout after each change. I found that at 1200 mhz I was getting 1600s instead of 1400s and the phone ran great. But when I tried 1400 mhz the phone froze up and restarted while doing the CPU section of the Quadrant test so I reverted back.
My question is, what would be safe to stay at for general use?
Second question, how do you use the voltage app to undervolt I see the settings but I don't know what to set them too.
Here is the link to the kernel
1200 has proven to be the most stable overclock, any higher and it will freeze up eventually.
With voltage control, the way it works is that you set the max clock and then it will give you increments that the phone will automatically clock to within the guidelines you give it. Then for each increment you can set the voltage it will use. Just look around and experiment with voltages, see how low you can go without having issues and never set it to apply at boot unless you know that's what you want, other than that go crazy and a reboot will fix it if you have a problem.
I recommend keeping setCPU installed along with it, that way you can still force it to underclock or overclock or whatever. It all depends on how much you use the phone and what for.
Sent from my MIUI SCH-i500
Thanks sage I'm glad someone who knows what their talking about replied lol.
Swyped using USCC Mesmerize
I've been running overclocked at 1.3 and undervolted at least 50 for a couple days now. Only one issue and I'm not even sure it was related as it janet happened again. I posted my settings in the otb thread if you're curious.
Sent from my SCH-I500 using XDA App
akellar said:
I've been running overclocked at 1.3 and undervolted at least 50 for a couple days now. Only one issue and I'm not even sure it was related as it janet happened again. I posted my settings in the otb thread if you're curious.
Sent from my SCH-I500 using XDA App
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Click to collapse
H'm, I tried going up to 1.3 and it would freeze up after 5 or 10 minutes every time.
Like I said, 1.2 is the only one that has proven to be safe for everybody... not each phone is exactly the same and if akellars CPU has a soldering that is done a little bit different than mine, it might allow him to clock a little higher. who knows
Sent from my MIUI SCH-i500
I've been running it for a week @ 1400 -25 undervolted and haven't had any issues. The new 1.6 gives me trouble. I don't think there's enough overvolting in that one to make it stable for pretty much anyone. I use the 1400, 800, 400, 200 steps all undervolted @50 except 1400 which as mentioned is -25. Battery life is good because during sleep it doesnt really hit the high end and by not having the other steps its snappy when in use. Fastest this phone has been by far. I don't use setcpu because I think it and the voltage app conflict. That was nemisis's instruction to install it.
Sent from my SCH-I500 using XDA App
sageDieu said:
H'm, I tried going up to 1.3 and it would freeze up after 5 or 10 minutes every time.
Like I said, 1.2 is the only one that has proven to be safe for everybody... not each phone is exactly the same and if akellars CPU has a soldering that is done a little bit different than mine, it might allow him to clock a little higher. who knows
Sent from my MIUI SCH-i500
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Click to collapse
Yup I'm just lucky 1.4 worked for me too but I didn't see much of a performance difference so I didn't see the need to stress the cpu out anymore than I already was. battery life had been awesome for me with my setup as well.
Sent from my SCH-I500 using XDA App
so i just bought this phone from a friend, he had it rooted when i bought it, seems every kernel i try the max is always at 1000 instead of higher options and my governor scaling does not let me choose any options as well,tried 2 different kernels and same for both any ideas how to fix, would be greatly appreciated
awdlexusis said:
so i just bought this phone from a friend, he had it rooted when i bought it, seems every kernel i try the max is always at 1000 instead of higher options and my governor scaling does not let me choose any options as well,tried 2 different kernels and same for both any ideas how to fix, would be greatly appreciated
Click to expand...
Click to collapse
Have you tried pimpmycpu? For some reason set CPU doesn't work
Sent from my LG-P999 using XDA Premium App
Buy and use pimp my cpu.
Set cpu doesn't seem to work with this phone for now for what ever reason.
Sent from my G2x running Bionix 2 with the power of Trinity.
There is a free version of pimp my cpu somewhere I here.
The developer of that app post it somewhere else I this forums. Is ok to download it from this forums for free.
Sent from my LG-P999 using XDA App
I tryed it once and didn't seem to work it didn't have any goveners to choose from either.or maybe I just ain't used to it ill try again thanks for the reply.I thought maybe he messed something up in the root process
Probably the dual core is messing with setcpu and it needs an update for it to work properly. I could be wrong but that's my guess. Are u using a custom rom that allows for oc? Cm7 has a setting for it so no need for an app to control it
Sent from my HTC Vision using XDA App
governor
I tryed pimp my CPU.seams to overclock but governor has no choices is it just me or is everyone's like that?
tegra2 controls the governers so they dont give you the option to change as of yet, that is untill one of our genious devs figures a way around that as well.
I see thanks for letting me know that. thought something was wrong on my end
I'm using AOSP+ ICS ROM with the latest Matr1x kernel. Whenever I try to OC to 1460 the phone freezes and I have to pull the battery, so I'm forced to run at a maximum of 1300MHz.
Also, on a related matter, is it good practice to use SetCPU with various profiles (battery<, temp>, screenoff, charging) for various frequencies? Or should I just use AOSP+ tweaks to chose a min and max frequency and let it be?
Thanks for taking the time to answer these.
Raise all voltages by +30 across the board
Sent from my Nexus S using XDA App
My Phone freezes when i try to OC to 1460
Read the above comment or read my FAQ...god..
Lol
Sent from my Nexus S using XDA App
http://www.youtube.com/watch?v=DPclc3eKgiQ&feature=youtube_gdata_player
Sent from my Nexus S using XDA App
zgomot said:
Also, on a related matter, is it good practice to use SetCPU with various profiles (battery<, temp>, screenoff, charging) for various frequencies? Or should I just use AOSP+ tweaks to chose a min and max frequency and let it be?
Click to expand...
Click to collapse
If you are using deep idle you shouldn't underclock since it causes a race-to-idle condition. In other words your battery will drain faster. If you don't use deep idle, feel free to underclock when the screen is off or whatever you want.
sakisds said:
If you are using deep idle you shouldn't underclock since it causes a race-to-idle condition. In other words your battery will drain faster. If you don't use deep idle, feel free to underclock when the screen is off or whatever you want.
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Click to collapse
To the point and verry helpful, thanks a bunch
mathkid95 said:
Raise all voltages by +30 across the board
Sent from my Nexus S using XDA App
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Click to collapse
Can I do this via AOSP+ tweaks and still use SetCpu to OC and UC? Are they conflicting apps? (Deep idle OFF)
Sent from my Nexus S using XDA App
I would recommend just using setcpu
Sent from my Nexus S using XDA App
mathkid95 said:
Raise all voltages by +30 across the board
Sent from my Nexus S using XDA App
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Click to collapse
Just an update, Using CNA 1.4.0 and Matr1x v17, I am stable oc'ed to 1460.
this is what I am running
1)800/1460
2)gov =Ondemand
3)Scheduler =Noop
4)all voltages to +30 (used the cna rom's voltage tweaker)
I tried ShadowGun: the Leftover.. and It was flying. Of course, make sure that have enough battery or that you have a charger ready. But finally it works, try this and let me know
I can run it for 10-20 min of usage then get a freeze. I never raised the voltages before though. It seems like its working for other people. And the actual developer of Matrix Kernel is telling you to ....
Nexus S (GSM i9020a)
AOKP (Build 25)
Eugene's Kernel (Speedy 7)
OC 800/100 (Lionheart)
Live OC (105)
It still amazes me how so many people that ask about overclocking have no frigging idea at all how cpus/gpus in general are binned etc.
I have a question. Why do you guys overclock that much? It might be snappy but battery life is just bad and it just doesn't worth it in my opinion.
Sent from my Nexus S from Tapatalk
albundy2010 said:
It still amazes me how so many people that ask about overclocking have no frigging idea at all how cpus/gpus in general are binned etc.
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Click to collapse
Care to shed some light for us people that have no frigging idea at all how cpus/gpus in general are binned etc? If not, well... why did you even bother posting?
ljordan2 said:
I have a question. Why do you guys overclock that much? It might be snappy but battery life is just bad and it just doesn't worth it in my opinion.
Sent from my Nexus S from Tapatalk
Click to expand...
Click to collapse
Personally, I do it because I can. Seriously... I'm a geek, I love gadgets and tech and I like to tinker.
On the subject at hand, I'm still unable to OC to 1460 (ARM voltages +30, INT voltages +25) but at 1300 it runs fine, no issues whatsoever.
i can run 1460 stable all day. bigxie/matrix. just did +30 to all the voltages above 1000. deadline and lulzactive..
If you are a geek you would know about something as simple as binning chips. Do what a tech geek would do...look it up. Same thing the op should have done with his ?. Hell mathkid has a answer to his ? In the op of his kernel thread. Which is the kernel he is running
albundy2010 said:
If you are a geek you would know about something as simple as binning chips. Do what a tech geek would do...look it up. Same thing the op should have done with his ?. Hell mathkid has a answer to his ? In the op of his kernel thread. Which is the kernel he is running
Click to expand...
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You're kinda bitter for someone married to a busty redhead
jesusice said:
You're kinda bitter for someone married to a busty redhead
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Haha, I thought so too.
Sent from my Nexus S
I have seen some talk about Voltage control in the dev thread and I am a little confused as to what it is they are doing. I do understand they are using the Voltage Control app and that you can set the min and max. When they start referring to under volting to 125 I am not seeing how they do that.
How are they setting it for 125? I have a feeling I am just looking at the surface and not seeing anything past that.
klturi421 said:
I have seen some talk about Voltage control in the dev thread and I am a little confused as to what it is they are doing. I do understand they are using the Voltage Control app and that you can set the min and max. When they start referring to under volting to 125 I am not seeing how they do that.
How are they setting it for 125? I have a feeling I am just looking at the surface and not seeing anything past that.
Click to expand...
Click to collapse
They minus (undervolt) each frequency by 125. It's in the Voltage section of the app. It will list the frequencies in there from 100-1200 or to 1600if the kernel supports it. So basically undervolting will use less battery when it hits those frequencies.
Sent from my SGH-I997
If you're going to try it, read up on it, you can have random reboots if set wrong. People say to stress test before leaving a setting.
Sent from my SGH-I997
Awesome! I thought it was something super simple I just wasnt putting 2 and 2 together so to speak. I am going to give it a whirl.
If you have tinkered with VC, what are the settings that have worked best for you?
I'm OC to 1.6, and UV's at -100 across the board, and running great!
klturi421 said:
Awesome! I thought it was something super simple I just wasnt putting 2 and 2 together so to speak. I am going to give it a whirl.
If you have tinkered with VC, what are the settings that have worked best for you?
Click to expand...
Click to collapse
It all depends per device. For example, my settings may not work well with your device. Really test it out first before you save the settings on boot. I'll link you the thread that explains it more.
Sent from my SGH-I997
Here. It's in his second post
http://forum.xda-developers.com/showthread.php?p=18549017
Sent from my SGH-I997
This is mine:
Sent from my SAMSUNG-SGH-I997 using xda premium
Set CPU doesn't seem to remember settings very well even though I save them and back them up. I've chosen ondemand profile and still the same problem with not only the settings I've input for battery, screen off, etc but the main screen is constantly different as well.
I'm using SkyIcs with update 7.4 and Faux 10u kernel.
Any help is greatly appreciated. Doesn't matter if its a paid app, but I really need something better that will change the speeds properly as I use this as my "daily driver"
Thanks again!
Brett
System Tuner always worked great for me. In fact, I used it with that same rom/kernel combo with great results.
Sent from my SAMSUNG-SGH-I727 using Tapatalk
Antutu cpu master pro is good
Sent from my SAMSUNG-SGH-I727 using xda premium
Awesome! I'll give them a try!
Any idea as to why the readings would be so erratic and not stay within the parameters set?
give nofrills a shot
You already should have faux clock in your apps. It works just fine. You can even undervolt.
I wasn't a big fan of antutu. Setcpu is what I've been using since the beginning.
Sent from my SAMSUNG-SGH-I727 using XDA
tomtommy306 said:
You already should have faux clock in your apps. It works just fine. You can even undervolt.
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Click to collapse
I dont have faux clock(how do you get it) and my setcpu wont let me play with voltage even though the faux kernel allows it right?
ian1 said:
I dont have faux clock(how do you get it) and my setcpu wont let me play with voltage even though the faux kernel allows it right?
Click to expand...
Click to collapse
You have to get the .apk for faux clock.
system tuner allows UV as well
I just run a script and dont use any tuners, its cleaner.
xcrazydx said:
You have to get the .apk for faux clock.
system tuner allows UV as well
I just run a script and dont use any tuners, its cleaner.
Click to expand...
Click to collapse
Thanks i got it.
found that I have to use sys tuner and fauxclock both w/faux123 kernel for everything to go well ..
won't go into deepsleep unless force both cpus online at boot is enabled
running -.75mv across the board except like 450mhz and under which are all 812mv as per faux's recommendations ..
some phones can handle -100mv some only -.50mv
sorry to hear that about setCPU profiles not working was about to try it tonight.
still might ....
only because I'm amazing
That's no good to use 2 CPU apps. Just run a script and call it a day.
xcrazydx said:
That's no good to use 2 CPU apps. Just run a script and call it a day.
Click to expand...
Click to collapse
You got a link to the thread in the dev section where you posted this script?
marvin02 said:
You got a link to the thread in the dev section where you posted this script?
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Click to collapse
I didn't post it, it's gideons. You can modify it to run whatever voltage and freq. you want though.
http://forum.xda-developers.com/showpost.php?p=20946429&postcount=574
xcrazydx said:
That's no good to use 2 CPU apps. Just run a script and call it a day.
Click to expand...
Click to collapse
system tuner sets the voltages and forces both cores online (which for some reason is the only way deep sleep works)
fauxcpu maintains the 384-1100'ish because systuner doesnt keep it there apparently ..
so it's no good but does all I need done right ?
it's not bad either ... right ....
shoobiedoobiiwhompwop said:
system tuner sets the voltages and forces both cores online (which for some reason is the only way deep sleep works)
fauxcpu maintains the 384-1100'ish because systuner doesnt keep it there apparently ..
so it's no good but does all I need done right ?
it's not bad either ... right ....
Click to expand...
Click to collapse
System tuner works fine for both. The 2 CPU apps will conflict with each other. It's no good man
uh huh . it didn't work fine alone though is the thing
again , im fine with it.
shoobiedoobiiwhompwop said:
uh huh . it didn't work fine alone though is the thing
again , im fine with it.
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Click to collapse
That's cool man, hope it stays all good for ya