Undervolting on CM9 - Samsung Galaxy S (4G Model)

What do people have for UV settings on CM9 and what tool are they using to set the levels?
Thanks

I use System Tuner Pro. It's worth every penny. Try the free version first. IMO it's the best app for the money. It's actually not showing the value change when you hit the -12.5mv button but if you go back to the home screen then go back to STP it does show the change. I'm running a yet to be released kernel and just haven't had time to look at it yet. I'm UV'd by 100mv across the board. All phones act differently to UV'ing so start with small steps and make sure set on boot is turned off until you find a stable range.

Everyone's phone responds differently to oc/uv. Here are the minimum settings I can use without crashing my phone.
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I believe cm9 comes with jefe kernel, someone correct me if I'm wrong, which is already undervolted 25mv versus stock. So a 100mv undervolt is technically a 125mv UV.

TrenchKato said:
Everyone's phone responds differently to oc/uv. Here are the minimum settings I can use without crashing my phone.
Click to expand...
Click to collapse
100mhz to 600mhz are stable for you that low? I thought my phone was liked UVing but your phone loves it. lol

hechoen said:
100mhz to 600mhz are stable for you that low? I thought my phone was liked UVing but your phone loves it. lol
Click to expand...
Click to collapse
Yup everything runs fine. I wanted at least -100 on the top end. Lol I must be greedy.

I'm using the following:
1200 1275 -75
1100 1200 -125
1000 1175 -125
0900 1125 -125
0800 1075 -150
0600 1000 -200
0400 0925 -150
0200 0825 -175
0100 0825 -150
That's as low as I can go with everything staying stable. I CAN drop them by 25... but sometimes it will crash. I generally stick with 1100-200 since I don't really need the extra bit of 1200 and it's a major battery bump.

Thanks for the info everyone
Thanks for the information everyone.

Related

A small patch ro enable 520MHz option in Device Speed (for WWE_O4/R1)

This option will enable PXA272 run at 520 MHz,by default it is not shown.
I advice user only set to 520 MHz while you want to play big movies,in normal plz keep it 416MHz.
DON'T run at 520MHz normal time.
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Thanks
Good work. Thanks
is it works with wwe_03?
danati said:
is it works with wwe_03?
Click to expand...
Click to collapse
Only available since O4
I want to notice every one, the main reason why it hidden by default.
YOU ARE USING IT'S AT YOUR OWN RISK!
I was using it about 10 hours without problems, but on your device it may cause problems.
Maybe it can cause unstability, system hangs or you can damage your CPU. It's on your own risk! Remember this.
xiaojin1985 said:
only available since o4
Click to expand...
Click to collapse
小金能不能说说为啥可以超频到520mhz?
Cotulla said:
I want to notice every one, the main reason why it hidden by default.
YOU ARE USING IT'S AT YOUR OWN RISK!
I was using it about 10 hours without problems, but on your device it may cause problems.
Maybe it can cause unstability, system hangs or you can damage your CPU. It's on your own risk! Remember this.
Click to expand...
Click to collapse
THX for big brother's great work! i am just Courious about the theory behind this amazing over-clocking of PXA272. how can it be possible? do we really have the 520mhz power provided by PXA272? If it's true that would be awesome!
I advice user only set to 520 MHz while you want to play H264 movies,that will make it faster,in normal plz keep it 416MHz.
DON'T run at 520MHz normal time.
jorison said:
THX for big brother's great work! i am just Courious about the theory behind this amazing over-clocking of PXA272. how can it be possible? do we really have the 520mhz power provided by PXA272? If it's true that would be awesome!
Click to expand...
Click to collapse
520MHz is the top speed which designed for PXA272,and for PXA270 is 624MHz
xiaojin1985 said:
520MHz is the top speed which designed for PXA272,and for PXA270 is 624MHz
Click to expand...
Click to collapse
原来这样撒,我以前隐约听到818上的cpu是锁频的,也记不清楚了.技术细节就不追究了.反正那位俄国老大实在是不错,很强大,小金也为818机油们也做了不少好事!
辛苦了!!!
刚查了下PXA272的数据:
http://pdadb.net/index.php?m=cpu&id=a272&c=intel_xscale_pxa272
说272的推荐最大时钟频率也是624MHz
wikipedia上的PXA272是520MHz

[REQUEST] CPU Voltage Widget

I think it would be awesome to have a widget that shows CPU voltage, clock and maybe temp. Coming from overclocking the heck out of computers, monitoring that stuff is a must. A transparent overlay (maybe wrong terminology) that's visible in a specific screen area, that doesnt scroll with homescreens, stays put, would be the ****. Of course just a plain old live widget would be awesome too. Any Devs think this is worth pursuing? i looked in the market, hope i didnt miss something and waste yalls time. This is a screenshot from EVEREST for the PC.
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SetCPU. Atleast for some of those.
I use battery indicator, that seems to do what you want.
sanjsrik said:
I use battery indicator, that seems to do what you want.
Click to expand...
Click to collapse
That has cpu voltage? cool i'll try it
nugzo said:
That has cpu voltage? cool i'll try it
Click to expand...
Click to collapse
Setcpu works that way as well ... Set widget
rjmjr69 said:
Setcpu works that way as well ... Set widget
Click to expand...
Click to collapse
wow thanks, set widget is a separate widget? nm i'll look. Didnt see it. I use the setcpu widget. it has the freq on the widget but not voltage. am i missing something?
nugzo said:
wow thanks, set widget is a separate widget? nm i'll look. Didnt see it. I use the setcpu widget. it has the freq on the widget but not voltage. am i missing something?
Click to expand...
Click to collapse
I thought it had freq and no meant as one statement no other widget
yeah with the newer kernel technology and the undervolting, we've been seeing more freezing than normal, and i think some of it is coming from lower freq as well as the oc'd ones. It would be nice to be able to watch the voltage fluctuation along with the clocks. Plus it would be cool.
BatteryLife widget (Free) by CurveFish gives extended battery stats + a slick UI.

[Q] Quadrant - System Information

Hello guys,
When using Quadrant and looking at System Information under CPU it says "Cores 1". I tried the same app with Sensation One S and there is shows "Cores 2".
Is there something wrong with one of the cores on my Sensation, or is the app showing something wrong?
What ROM and Kernel are you using?
You could have a Kernel that's not utilizing the 2nd core, thus Quardrant wouldn't recgnize it's there.
Skipjacks said:
What ROM and Kernel are you using?
You could have a Kernel that's not utilizing the 2nd core, thus Quardrant wouldn't recgnize it's there.
Click to expand...
Click to collapse
I'm on stuck ROM 4.0.3.
Both cores on my phone show up on quadrant. Maybe your version needs updated?
Kevc44485 said:
Both cores on my phone show up on quadrant. Maybe your version needs updated?
Click to expand...
Click to collapse
I'm using version 2.0. Even tried to un-install and re-install.
Something is going on here. This morning when I ran the benchmark I got a score of about
2700 with both cores. Now when I run a benchmark I get a score of about 2200 with only one core showing up. Something is definitely wrong.
I'm only getting around 2200 every time. And it shows 1 core only every time...
EDIT:
If I restart my phone (no fast boot) go to System Information then it shows 2 cores.
If I do a Full Benchmark and after that go to System Information again, than it shows 1 core only.
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There´s nothing wrong with Quadrant showing sometimes 1 core and sometimes 2 cores.
The second core on the Sensation is deactivated, and reactivated when certain thresholds are reached on system load.
Not running on "performance"?!
You guys need to get some sort of app like SetCPU or similar and set your Governor to: Performance THEN do any benchmarks...oh, and of course close any programs running in the background and etc...
Also may want to tweak it up to 1.5 or 1.7 (currently on 1.7) and govern it to be OnDemand or Intellidemand and it'll only crank it up when you need it most.
---------- Post added at 01:29 AM ---------- Previous post was at 01:19 AM ----------
Consistently over 3000 (avg. 3200)...probably could be higher with a different Kernel and stuff but using one that saves on the juice.
NEW version just released:
What's in this version:
v2.1 changes:
Fixed detection of CPU cores on HTC Sensation
Restored the result browser

[Q] Best Governor for Gaming?

I know this is kinda vague because of the amount devices with various governors.
Its just I want the best performance for gaming and would like some advice since I don't actually concern myself with governors often. To specify the list I currently have these -
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Now its currently on performance as I think this might be best for gaming although I could be 100% wrong.
Does overclocking or underclocking affect the overall games?
I'm mainly using Emulators, at times they seem to drop fps for seconds other times the game seems to just run slow. I know a concern is I'm running ICS.
I'm on a almost 3 year old device but one that has made a legacy - Droid Incredible.
Any advice?
bOx Stash - https://www.box.com/shared/d8a46b7252c38069deb1
You're right, the performance governor should give you the best gaming experience, for more detailed information on governorns, look here:
http://forum.xda-developers.com/showthread.php?t=1369817
If you are still dissatisfied with the performance of your phone, there might be an option where you can choose the max. cpu frequency, and by giving it a bigger value, you can overclock your phone. But be advised that this can damage your phone, and you might run into some warranty issues if you do that. So be warned, and do it for your own responsibility. I'm not responsible to any damage it does to your phone. Hope that helps.
ElZilcho said:
You're right, the performance governor should give you the best gaming experience, for more detailed information on governorns, look here:
http://forum.xda-developers.com/showthread.php?t=1369817
If you are still dissatisfied with the performance of your phone, there might be an option where you can choose the max. cpu frequency, and by giving it a bigger value, you can overclock your phone. But be advised that this can damage your phone, and you might run into some warranty issues if you do that. So be warned, and do it for your own responsibility. I'm not responsible to any damage it does to your phone. Hope that helps.
Click to expand...
Click to collapse
Thanks for the info, helped greatly.
I already knew about Max/min values
I was just curious if they affected game performance, either way this helped a lot.
bOx Stash - https://www.box.com/shared/d8a46b7252c38069deb1

ROM Toolbox Pro CPU Control Not Working?

Hey all,
Any ideas why ROM Toolbox Pro's CPU Control center would not be working on this device? I am running ASUS stock JB ROM, unlocked and rooted with NvFlash access. I have never seen this issue before, even on my TF101. See attached screenshot for what I am talking about.
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Not only do the sliders and Governor return to this state after setting and returning (attempting to set the max to 1700 [I know there's not much of a purpose, but you will see why in a second] and the Governor to performance), the max GHz seems to be maxed out at 1500 which is very odd.
I tried looking for a kernel that supported overclocking but didn't find any, anyone know if I am just flat out missing something?
Sent from my unlocked Transformer Infinity
I_EAT_BABIES said:
Hey all,
Any ideas why ROM Toolbox Pro's CPU Control center would not be working on this device? I am running ASUS stock JB ROM, unlocked and rooted with NvFlash access. I have never seen this issue before, even on my TF101. See attached screenshot for what I am talking about.
View attachment 1408051
Not only do the sliders and Governor return to this state after setting and returning (attempting to set the max to 1700 [I know there's not much of a purpose, but you will see why in a second] and the Governor to performance), the max GHz seems to be maxed out at 1500 which is very odd.
I tried looking for a kernel that supported overclocking but didn't find any, anyone know if I am just flat out missing something?
Sent from my unlocked Transformer Infinity
Click to expand...
Click to collapse
I have tried a few CPU control apps and most of them are not working too well with JB on tf700. The only one I found that works is SetCPU, it recorded my max/ min and governor perfectly. (1700max and 50min), both settings are working well. Currently, there is no kernel that supported Over clocking.

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