Been Undervolting on the Glitch Kernel, and trying different things. What I have set my UV to is just slightly too low I guess, because it keeps restarting..
Have never really Uv'd before and having troubles finding the Lowest possible..
These are my Settings ;
1500mhz - 0 = 1500mv
1440mhz - 25 = 1450mv
1400mhz - 25 = 1425mv
1300mhz - 25 = 1375mv
1200mhz - 25 = 1325mv
1000mhz - 50 = 1200mv
800mhz - 50 = 1150mv
400mhz - 50 = 1000mv
200mhz - 75 = 875mv
100mhz - 125 = 825mv
Any of this Look wrong?
Any Suggestions?
I dont belive you should UVing the OC... just makes sense that anything over 1ghz should stay with factory voltage settings. Could be part of the problem your having?
xplred said:
I dont belive you should UVing the OC... just makes sense that anything over 1ghz should stay with factory voltage settings. Could be part of the problem your having?
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dragonmodz has undervolted the OC on his kernel i think so shouldnt matter but might do for some phones
Try 100mhz at 875 and if that doesn't work try 1225 on 1000mhz
Sent from my SGH-T959 using XDA App
I was just wondering what type of undervolt score you guys are getting from your Exynos CPU. Mine isn't too bad actually
1600 - 1300mV
1400 - 1200mV
1200 - 1100mV
1000 - 1000mV
800 - 925mV
500 - 825mV
200 - 800mV
The ROM and Kernel im using are in my Signature!
I would undervolt my GPU as well but I'd prefer something like Tegrak app but suitable for other Kernels!
Anyways the question is whats your score?
Hey fellow SGS3 users.
Several kernels have undervoltage capabilities for the Galaxy S III.
With this poll I'm trying to get a statistical handle on what the lowest possible voltages are on an average S3 device.
I am currently running at -100mV on all levels and I'm wondering if some people have already spent time testing the limits of the UV that is stable for their device. I haven't tried anymore that -100mV but since I have been running stable on that setting for more than a day, I am considering to decrease the voltage even further.
So if you're using a flat UV on all frequencies, fill in the poll and add any info you think may be relevant. If you use a specific voltage for each frequency, vote for custom and post your values (and maybe how you reached/tested them)
So for me:
Max Freq: 1.4Ghz
Min Freq: 100
Undervolt: Flat -100mV
Kernel: SiyahKernel S3-1.2.6
Edit: Seems stock voltages are not necessarily fixed on the SGS3 so take these with 2 grains of salt.
Stock Voltages in Siyah (in mV):
1400Mhz - 1287.5
1300Mhz - 1250
1200Mhz - 1187.5
1100Mhz - 1137.5
1000Mhz - 1087.5
900Mhz - 1037.5
800Mhz - 987.5
700Mhz - 975
600Mhz - 962.5
500Mhz - 937.5
400Mhz - 925
300Mhz - 900
200Mhz - 900
100Mhz - 900
These ones work for me:
1400Mhz : 1100 mV
1300MHz : 1050 mV
1200MHz : 1000 mV
1100MHz : 975 mV
1000MHz : 925 mV
900MHz : 900 mV
800MHz : 875 mV
700MHz : 850 mV
600MHz : 825 mV
500MHz : 800 mV
400MHz : 775 mV
300MHz : 775 mV
200MHz : 750 mV
Max Freq: 1200
Min Freq: 100
Undervolt: -100mV
Kernel: S3-1.2.6
the limit in ExTweaks is -100, i have Voltage Control Extreme but im not comfortable going any further for now
my uv values are in my sig, though -25mv from the one in my sig worked its not that stable .
Right now I'm running stable with:
1400: 1287500 > 1187500 = -100mV
1300: 1250000 > 1137500 = -112.5mV
1200: 1187500 > 1112500 = -75mV
1100: 1137500 > 1075000 = -62.5mV
1000: 1087500 > 987500 = -100mV
900: 1037500 > 937500 = -100mV
800: 987500 > 900000 = -87.5mV
700: 975000 > 837500 = -137.5mV
600: 962500 > 825000 = -137.5mV
500: 937500 > 812500 = -125mV
400: 925000 > 750000 = -175mV
300: 900000 >737500 = -162.5mV
200: 900000 > 687500 = -212.5mV
Although I might still be able to get one or two steps out of the upper middle frequencies, I spent several hours testing trying to find my voltages and it is annoying and tedious work, and I stopped at the above values. My chip is being attributed ASV5, so middle ground in terms of quality of the chip.
I tried to do -50 on all steps using ExTweaks and Siyah Kernel.. and my headset speaker stops working Works fine stock, but as soon as I reboot after a UV I have no headset speaker :/
AndreiLux said:
Although I might still be able to get one or two steps out of the upper middle frequencies, I spent several hours testing trying to find my voltages and it is annoying and tedious work, and I stopped at the above values. My chip is being attributed ASV5, so middle ground in terms of quality of the chip.
Click to expand...
Click to collapse
How did you find your chip number and how do you know about its quality? Cheers!
Fruktsallad said:
How did you find your chip number and how do you know about its quality? Cheers!
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Click to collapse
A stupid and simple way to do it is to check your default voltages and compare them to the ASV table.
Fruktsallad said:
How did you find your chip number and how do you know about its quality? Cheers!
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I'm curious about that as well.
I find Kevin's values to be completely stable so far. I'm impressed with the UV potential on the SGS3. On the SGS2 I rarely managed to take 100mV off the stock voltage while Kevin's values are significantly lower than 100mV off the stock.
I'll put the stock voltages in the OP to make comparison easier.
AndreiLux said:
Right now I'm running stable with:
1400: 1287500 > 1187500 = -100mV
1300: 1250000 > 1137500 = -112.5mV
1200: 1187500 > 1112500 = -75mV
1100: 1137500 > 1075000 = -62.5mV
1000: 1087500 > 987500 = -100mV
900: 1037500 > 937500 = -100mV
800: 987500 > 900000 = -87.5mV
700: 975000 > 837500 = -137.5mV
600: 962500 > 825000 = -137.5mV
500: 937500 > 812500 = -125mV
400: 925000 > 750000 = -175mV
300: 900000 >737500 = -162.5mV
200: 900000 > 687500 = -212.5mV
Click to expand...
Click to collapse
This was a good starting point to get rid of my -100 blanket UV, but using that as a firm base.
1704: 1275mV
1600: 1225mV
1500: 1175mV
1400: 1150mV
1300: 1125mV
1200: 1050mV
1100: 1000mV
1000: 950mV
0900: 925mV
0800: 875mV
0700: 837mV
0600: 825mV
0500: 812mV
0400: 750mV
0300: 750mV
0200: 750mV
0100: 750mV
Seems stable so far. Its always those bottom 3 which I have as a screen off profile that worries me. I can ascertain the other frequencies by using the device, but these 3, the only real test is whether it falls over when Idle.
Are any of today's kernels using AXI does anyone know? Not seen it mentioned in any of the threads.
I am at:
GHZ mV
1.4 = 1100
1.3 = 1050
1.2 = 1000
1.1 = 975
1.0 = 925
0.9 = 900
0.8 = 875
0.7 = 850
0.6 = 825
0.5 = 800
0.4 = 775
0.3 = 775
0.2 = 750
I can't believe how far the s3 can under volt. I haven't had any problems with these voltages all day. I haven't and don't dare go any lower
Currently running these frequencies and everything is perfectly stable, no a single lockup or crash so far.
Basically dropped all the frequencies by 100 mV then pushed 200mhz down as far as i dared as i figure undervolting is most useful for extending standby time.
From other peoples settings it looks like I can lower most of these a lot more without any problems.
Freq - mV
1500 - 1200
1400 - 1150
1300 - 1137
1200 - 1100
1100 - 1050
1000 - 1000
900 - 950
800 - 900
700 - 875
600 - 862
500 - 850
400 - 850
300 - 825
200 - 720
GHZ mV
1.4 = 1100
1.3 = 1050
1.2 = 1000
1.1 = 975
1.0 = 925
0.9 = 900
0.8 = 875
0.7 = 838
0.6 = 825
0.5 = 813
0.4 = 750
0.3 = 738
0.2 = 675
AndreiLux said:
I spent several hours testing trying to find my voltages and it is annoying and tedious work, and I stopped at the above values. My chip is being attributed ASV5, so middle ground in terms of quality of the chip.
Click to expand...
Click to collapse
How did you work out your setup?
Seems that my UV is not stable and I had 2-3 SOD.
This is what I did: undervolted the cpu step, then kept stuck the cpu on that step and tried for a while.
I did this for every passage, and tested untill the phone freezed.
So for exemple, I started from 900 mv, then went down 875-850 etc. If my phone dies on 825, I setup 850, or the previous valid voltage step.
I did this for every cpu step, from 1400 to 200, but when I stopped keeping the cpu stuck on a single step and let it go between 200 and 1400, I started to have loads of reboots etc.
Any hints? Since I've just spent like 2 hours of my life for nothing
TMaLuST said:
I did this for every cpu step, from 1400 to 200, but when I stopped keeping the cpu stuck on a single step and let it go between 200 and 1400, I started to have loads of reboots etc.
Any hints? Since I've just spent like 2 hours of my life for nothing
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I went through this same procedure and the same thing happened. Unstable as hell, wasted hours of time...
I ended up just using extweaks to undervolt all clocks to -50mv by default and that seems to save me a decent amount of power.
Also set sleep clock to 100mhz. Saves even more during sleep.
Getting runs of 30 hours with moderate useage, browsing texting calling photos etc.
Sent from my GT-I9300 using xda premium
I think the higher steps don't all undervolt quite as well as lower ones. To get 1.6 stable on mine needs quite a lot of juice and then it heats up a bit and benchmark scores drop so I guess there's some thermal throttling. I'll just keep it at 100-1400MHz 725-1200mv.
What app/program are you guys using to undervolt this? you wouldn't happen to be using setcpu right? This seems much more advanced than what setcpu offers?
Enigmani said:
What app/program are you guys using to undervolt this? you wouldn't happen to be using setcpu right? This seems much more advanced than what setcpu offers?
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Click to collapse
I use setCPU. All we are doing is setting a voltage for each clock frequency. Set CPU has a voltages tab.
doi its fine
rootSU said:
I use setCPU. All we are doing is setting a voltage for each clock frequency. Set CPU has a voltages tab.
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Click to collapse
thanks for the reply and screenshot, what version are you using of setcpu? i don't seem to have the voltages tab there.. My only tabs are: Main|Profiles|Governor|Info|About.
maybe i'll see if I can update my version maybe...
Undervolting cpu means less performance? I Undervolted with a option from my kernel. Seems to get same quadrant score. Shoild i do other tests? Is it ok? I Undervolted just 25mv. I want good performance and good battery. Already removed a bunch of após with alot of wake up and wavelock. It Seems its much better
Sent from my GT-I9100 using Tapatalk 2
Undervolting results are fairly different because it depends on the usage.. if your.phone get lags or random shut downs or random reboots, then your phone cannot handle the UV.. but as what you have described, your phone seems fine
Sent from my GT-I9300 using xda premium
saywhatt said:
Undervolting results are fairly different because it depends on the usage.. if your.phone get lags or random shut downs or random reboots, then your phone cannot handle the UV.. but as what you have described, your phone seems fine
Sent from my GT-I9300 using xda premium
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Thanks
Sent from my GT-I9100 using Tapatalk 2
Undervolting doesn't effect performance, underclocking does.
However as already pointed out if you undervolt too much your phone can freeze or reboot.
25mv undervolting is fine
Sent from my GT-I9100 using xda app-developers app
Obagleyfreer said:
Undervolting doesn't effect performance, underclocking does.
However as already pointed out if you undervolt too much your phone can freeze or reboot.
25mv undervolting is fine
Sent from my GT-I9100 using xda app-developers app
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Tested with - 50mv seems not to have problem done a bunch of stress tests. Seems Nice
Sent from my GT-I9100 using Tapatalk 2
Gone back to - 25 loool spoke to soon got 2 freezes
Sent from my GT-I9100 using Tapatalk 2
Undervolting can be hit and miss. You just have to spend time tweaking and testing and find the best values for each frequency
I use an app called voltage control it's a great tool.
Sent from my GT-I9100 using xda app-developers app
I have been uv many times on different kernels. Still can't say if that really save more juice. You know, in theory it does. But there are plenty of other things that do. Starting from less brightness and being carefull what apps you install... I recommend GSam Battery Monitor to watch them.
How about gpu? Is bad to undervolt? Thanks again
Sent from my GT-I9100 using Tapatalk 2
jgcaap said:
How about gpu? Is bad to undervolt? Thanks again
Sent from my GT-I9100 using Tapatalk 2
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Ehhh. Don't Undervolt GPU. You will get constant freezes especially when you are playing games.
However Undervolting CPU by 25-50mv is fine.
Kernel configuration was:
200 Mhz - 950mV
300 Mhz - 975mV
400 Mhz - 975mV
500 Mhz - 975mV
600 Mhz - 1000mV
700 Mhz - 1025mV
800 Mhz - 1075mV
900 Mhz - 1125mV
1000 Mhz - 1200mV
1100 Mhz - 1250mV
1200 Mhz - 1300mV
Made a Manual configuration:
200 Mhz - 875mV
300 Mhz - 900mV
400 Mhz - 925mV
500 Mhz - 925mV
600 Mhz - 950mV
700 Mhz - 975mV
800 Mhz - 1025mV
900 Mhz - 1075mV
1000 Mhz - 1175mV
1100 Mhz - 1200mV
1200 Mhz - 1250mV
Seemed to be stable this way. On 1000 Mhz i couldnt undervolt -50 for some reason, gave imediate freeze. I've made 30 secound stress test on each frequency. Seems to be working fine
jgcaap said:
Kernel configuration was:
200 Mhz - 950mV
300 Mhz - 975mV
400 Mhz - 975mV
500 Mhz - 975mV
600 Mhz - 1000mV
700 Mhz - 1025mV
800 Mhz - 1075mV
900 Mhz - 1125mV
1000 Mhz - 1200mV
1100 Mhz - 1250mV
1200 Mhz - 1300mV
Made a Manual configuration:
200 Mhz - 875mV
300 Mhz - 900mV
400 Mhz - 925mV
500 Mhz - 925mV
600 Mhz - 950mV
700 Mhz - 975mV
800 Mhz - 1025mV
900 Mhz - 1075mV
1000 Mhz - 1175mV
1100 Mhz - 1200mV
1200 Mhz - 1250mV
Seemed to be stable this way. On 1000 Mhz i couldnt undervolt -50 for some reason, gave imediate freeze. I've made 30 secound stress test on each frequency. Seems to be working fine
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Good post, very best working on 5.1.1 dity unicorns
So, I managed to undervolt my s3 to the point that I'm scared to do it further (freqs 1600-900 are final, 800MHz-200 still open). This settings are fully stable (2 days no reboots...yet). I was desperate to lower my batt temperature due to thermal throttling in order to play some heavy game on emulator, and well - didn't expect such results!
1600MHz - 1212.5mV (-137.5mV)
1500Mhz - 1150 (-137.5)
1400MHz - 1075 (-175)
1300MHz - 1037.5 (-162.5)
1200MHz - 987.5 (-150)
1100MHz - 937.5 (-162.5)
1000MHz - 912.5 (-125)
900MHz - 862.5 (-137.5)
800MHz - 775 (-187.5)
700MHz - 750 (-200)
600MHz - 737.5 (-200)
500MHz - 712.5 (-200)
400MHz - 700 (-200)
300MHz - 700 (-200)
200MHz - 675 (-212.5)
ASV Level 8
Guys, if you managed to go achieve similar results post it along with your chips' ASV level, the other threads seem dead