just a little information/ competition to see which SGS2 is the best , i want to see how low of a voltage you can go. I am using Stability test to test out the voltage, 3 round of classic test at 1.73ghz at 1125mV, and it stable, a little scare to go down more but here some info on my SGS2
running
beastmod 4.2
kernel 2.3.6
Was running originally at 1175 but i undervolt to 1125 and running stable at a stable temp of 41-42..
what's yours
be careful with such drastic undervolting at those frequencies, could result in corrupt nand.
G1_enthusiast said:
just a little information/ competition to see which SGS2 is the best , i want to see how low of a voltage you can go. I am using Stability test to test out the voltage, 3 round of classic test at 1.73ghz at 1125mhz, and it stable, a little scare to go down more but here some info on my SGS2
running
beastmod 4.2
kernel 2.3.6
Was running originally at 1175 but i undervolt to 1125 and running stable at a stable temp of 41-42..
what's yours
Click to expand...
Click to collapse
This isn't undrevolting..... this is underclocking.
Undervolting is pretty dangerous with trial and error. The lowest I'll go is -75.
And my frequencies at min 384 and mas 1350 ondemand
Sent from my SGH-T989 using xda premium
xxKamikazexx said:
This isn't undrevolting..... this is underclocking.
Undervolting is pretty dangerous with trial and error. The lowest I'll go is -75.
And my frequencies at min 384 and mas 1350 ondemand
Sent from my SGH-T989 using xda premium
Click to expand...
Click to collapse
no underclocking meaning i would use less ghz than the stock, this is minimizing the voltage on the core.
what your doing is underclock, i put mine fixed on 1.73ghz at 1125mV of voltage
icenight89 said:
be careful with such drastic undervolting at those frequencies, could result in corrupt nand.
Click to expand...
Click to collapse
I have never heard of such thing, i'm not doubting you but from over the years, i heard undervolting have positive affect on the CPU by lowering temp and give battery more juice.
where did you get those facts from?
G1_enthusiast said:
no underclocking meaning i would use less ghz than the stock, this is minimizing the voltage on the core.
what your doing is underclock, i put mine fixed on 1.73ghz at 1125mV of voltage
Click to expand...
Click to collapse
Ohhhh my mistake, I didn't catch the mv after the 1125 lol that's why I thought you were only messing with ghz ha ha ha
Sent from my SGH-T989 using xda premium
xxKamikazexx said:
This isn't undrevolting..... this is underclocking.
Undervolting is pretty dangerous with trial and error. The lowest I'll go is -75.
And my frequencies at min 384 and mas 1350 ondemand
Sent from my SGH-T989 using xda premium
Click to expand...
Click to collapse
As far as I know, there are no dangers associated with undervolting. I run at those frequencies too at -112.5 and have never had a problem of any sort.
I run about 1ghz. No under volt with this ics kernel but with my old gb kernel I undervilted with faux -100 at 1ghz...ran cool even with games and video, great battery life. And honestly 1ghz is plenty for snappy fast speed
Sent from my SAMSUNG-SGH-T989 using XDA
i also run 1ghz, runs super smooth across the board
zander21510 said:
I run about 1ghz. No under volt with this ics kernel but with my old gb kernel I undervilted with faux -100 at 1ghz...ran cool even with games and video, great battery life. And honestly 1ghz is plenty for snappy fast speed
Sent from my SAMSUNG-SGH-T989 using XDA
Click to expand...
Click to collapse
How did you undervolt by -100?
yoft1 said:
As far as I know, there are no dangers associated with undervolting. I run at those frequencies too at -112.5 and have never had a problem of any sort.
Click to expand...
Click to collapse
I don't know if you're familiar with overclocking, but the same type of stability issues can occur. When you're undervolting you can think of your stock speed as an "overclock" and you're just trying to minimize the voltage necessary for stability. If you undervolt too much you can experience freezing, corruption, bad lag, etc. It's all the same process for desktop computers, laptops, and anything else you can play with the voltage.
Personally I'm at -62.5, but after seeing how low people are going I might be a bit more adventurous. Don't use the "Set at Boot" option when you're experimenting.
SupaKid said:
How did you undervolt by -100?
Click to expand...
Click to collapse
I did it gradually...and the fact that I was at 1ghz might have also made it possible. Started at -50 since most had said it was safe...then tried 60 then 75 then 90 then maxed at 100...worked beautifully.
I have heard and it is true that phones are made very different. Some exact same models can't oc or UV as high or low as others...I got lucky with a really good model...my old nexus S couldn't oc to 1.4 without freezing while others could.
Sent from my SAMSUNG-SGH-T989 using XDA
Nice!
Could I try your script?
SupaKid said:
Nice!
Could I try your script?
Click to expand...
Click to collapse
My bet is he used romanbb's FauxClock (which maxes out at -100mv).
What's the best app to under volt with?
Sent from my SGH-T989 using XDA
asting said:
I don't know if you're familiar with overclocking, but the same type of stability issues can occur. When you're undervolting you can think of your stock speed as an "overclock" and you're just trying to minimize the voltage necessary for stability. If you undervolt too much you can experience freezing, corruption, bad lag, etc. It's all the same process for desktop computers, laptops, and anything else you can play with the voltage.
Personally I'm at -62.5, but after seeing how low people are going I might be a bit more adventurous. Don't use the "Set at Boot" option when you're experimenting.
Click to expand...
Click to collapse
Right, I meant that there are no risks to undervolting in terms of physical damage to your phone, only stability issues which is fixed with a reboot, assuming you didn't set at boot. Overclocking is a bit different in that the risk overclocking presents in addition to stability issues is the risk of overheating which can permanently damage your phone. Undervolting can compensate for this somewhat by letting the power supplied to the processor and thus reducing the risk of overheat.
hiz99 said:
What's the best app to under volt with?
Sent from my SGH-T989 using XDA
Click to expand...
Click to collapse
I use system tuner, you can also look for Gideons script that is flashable in cwm to undervolt.
Im undervolted to -75mv for quite some time running a script clocked at 1.518min384
Sent from MY Juggernaut!!!:thumbup:
I have Gideon's OC/UV script. How could I edit it to undervolt by -100?
SupaKid said:
Nice!
Could I try your script?
Click to expand...
Click to collapse
yup that's what I used lol.
Related
Hello, I'm a noob with a quick question about undervolting. I am running SyndicateROM Frozen 1.0 EB13/EXT4 with the Twilight Zone kernel. I have the SetCPU.apk installed and I have some profiles and sliders set. I would like to undervolt to save some battery. Is this thing already undervolted? If so, is it only undervolted at 1.2GHz? Is there even a way for me to change anything relating to undervolting?
Thanks for any help.
td25er said:
Hello, I'm a noob with a quick question about undervolting. I am running SyndicateROM Frozen 1.0 EB13/EXT4 with the Twighlight Zone kernel. I have the SetCPU.apk installed and I have some profiles and sliders set. I would like to undervolt to save some battery. Is this thing already undervolted? If so, is it only undervolted at 1.2GHz? Is there even a way for me to change anything relating to undervolting?
Thanks for any help.
Click to expand...
Click to collapse
Undervolting is something that needs to be coded into the kernel by the dev. The best way to save battery would b to use setcpu to a max of 1ghz. An overclocked/undervolted kernel will run at 1.2 ghz while using the same amount of juice that a norma kernel would use at 1ghz
Sent from my SPH-D700 using XDA Premium App
Sh0wNuF said:
Undervolting is something that needs to be coded into the kernel by the dev. The best way to save battery would b to use setcpu to a max of 1ghz. An overclocked/undervolted kernel will run at 1.2 ghz while using the same amount of juice that a norma kernel would use at 1ghz
Sent from my SPH-D700 using XDA Premium App
Click to expand...
Click to collapse
and if they've done it right, which they have, 1Ghz will be using less battery than stock at 1Ghz. in theory the lower you set it the less battery you should use, but you dont directly change the undervolting settings, just the clock speed.
Much obliged.
I think that kernel only has undervolting enabled on 1ghz. So if you're on 1.2ghz it will only be overclocked without the undervolt...I think
Sent from my SPH-D700 using XDA Premium App
cozmonot said:
I think that kernel only has undervolting enabled on 1ghz. So if you're on 1.2ghz it will only be overclocked without the undervolt...I think
Sent from my SPH-D700 using XDA Premium App
Click to expand...
Click to collapse
I believe its undervolted at 1.2. Reason I say this is because I flashed the genecide kernal and set it at 1.2 ghz which I know is not undervolted on genecide only 1ghz is I believe and I got crappy battery. On the twilight kernal I'm set at 1.2 and getting great battery. That's just my observation so far.
Sent from my SPH-D700 using XDA App
hugo87 said:
I believe its undervolted at 1.2. Reason I say this is because I flashed the genecide kernal and set it at 1.2 ghz which I know is not undervolted on genecide only 1ghz is I believe and I got crappy battery. On the twilight kernal I'm set at 1.2 and getting great battery. That's just my observation so far.
Click to expand...
Click to collapse
I'm sorry, but you can't say that a great battery is caused simply by an undervolt at 1.2Ghz. The Twilight kernel, from my knowledge, is not undervolted at 1.2Ghz, only at 1.0Ghz. The great battery life you're getting out of the Twilight kernel is because of how it was coded and optimized. My 2 cents.
Twilight kernel is not undervolted on 1.2 ghz. Only 1.0. Read the thread
Sent From My Evo Killer!
Is it worth rooting my phone and overclocking it?
Is overclocking it really noticable in performance to say approx 1.5GHz? And is it going to kill battery? Thanks
Sent from my GT-I9100 using xda premium
Simmo3D said:
Is it worth rooting my phone and overclocking it?
Is overclocking it really noticable in performance to say approx 1.5GHz? And is it going to kill battery? Thanks
Sent from my GT-I9100 using xda premium
Click to expand...
Click to collapse
Yes and Yes to both of your questions. There is a noticeable diffrence in performance when overclocking. But it will obviously use more battery
cant say ive noticed 1.5ghz killing my battery.. might be used a bit faster.. but u can easily offset this by lowering your clockspeed and voltage for your sleep state in addition to minimising the required voltage that 1.5ghz requires, id say my battery life is probably better overall, and i run 1.5ghz 24/7.
of course your mileage may vary depending on usage and various settings.
How hard is it to overclock it? My phone is rooted but I have no experience with overclocking.
I'm guessing it wouldn't be a wise idea?
Yeah this seems a little over my head.. thinking of buying another Xperia Play just to mod the crap out of.
Dont really wanna mess with the overlocking now I think about it incase I fry the chips and kill the phone.
At 1.4 and 1.5ghz its quite safe.
To chill out the battery put some screen off underclocking like at Real low with but not the least
1. 4 ghz scaling interactiveX I get 252/282 MS, thats pretty fast with nitro lag Nullifier too
Sent from my R800i using XDA App
i currently overclocking my play to 1.6ghz and it runs fine.. games and apps run a lot more quicker
i'm quite interested in overclocking.. been thinking about it for the last months..
but i don't know, 1GHz is quite enough for me.. im not experiencing any slow down..
Well with 1.5Ghz then, you'll be amazed!
PsychoShaft said:
i currently overclocking my play to 1.6ghz and it runs fine.. games and apps run a lot more quicker
Click to expand...
Click to collapse
Uaed same but not recommended, when you see problems cool it
I used the XDA App to post this, what did you use?
Using phone now but mostly use the pc
Sent from my R800i using xda premium
Which one do you think provides the best battery life and performance?
Sent from my SPH-D700 using xda premium
jbadboy2007 said:
Which one do you think provides the best battery life and performance?
Sent from my SPH-D700 using xda premium
Click to expand...
Click to collapse
The one that shuts your phone completely off...LOL.
All kidding aside, the only thing I have seen actually provide better battery life with these is to lower the max speed. Even the author of SetCPU says you can have performance or better battery life, not both. I believe SetCPU provides more options for profiles whereas Voltage control lets you play with voltages which of course is very dangerous for stability. There are so many options in both that it will be hard to get a definitive answer and since every phone is different, Your Mileage May Vary.
kennyglass123 said:
The one that shuts your phone completely off...LOL.
All kidding aside, the only thing I have seen actually provide better battery life with these is to lower the max speed. Even the author of SetCPU says you can have performance or better battery life, not both. I believe SetCPU provides more options for profiles whereas Voltage control lets you play with voltages which of course is very dangerous for stability. There are so many options in both that it will be hard to get a definitive answer and since every phone is different, Your Mileage May Vary.
Click to expand...
Click to collapse
With voltage control (and now setcpu), you can undervolt and overclock which could theoretically give you performance and speed. I'm a setcpu supporter, btw.
Tegrak. 'nuff said
Sent from my SPH-D700 using xda premium
kennyglass123 said:
The one that shuts your phone completely off...LOL.
All kidding aside, the only thing I have seen actually provide better battery life with these is to lower the max speed. Even the author of SetCPU says you can have performance or better battery life, not both. I believe SetCPU provides more options for profiles whereas Voltage control lets you play with voltages which of course is very dangerous for stability. There are so many options in both that it will be hard to get a definitive answer and since every phone is different, Your Mileage May Vary.
Click to expand...
Click to collapse
Very well put,,
Sent from my MB855 using XDA App
I like SetCPU myself , but mainly because my phone doesn't do well with undervolting
Did setcpu in the past dropped for tegrak.....way better!
rootxda said:
Did setcpu in the past dropped for tegrak.....way better!
Click to expand...
Click to collapse
I'm undervolting with tegrak right now because I can't with setcpu. Definitely worth the money
It also depends what you are running. Voltage Control won't work with Gingerbread leaks and Tegrak with SetCPU is working nicely to prevent the random reboots in the leaks.
xopher.hunter said:
Tegrak. 'nuff said
Sent from my SPH-D700 using xda premium
Click to expand...
Click to collapse
Same here...
I used Voltage Control on my phone and SetCPU on my tab.
I support setcpu, i use it well, as u concerned thd battery life, so lower the max frequency, hope to help u!
Sent from my HTC Desire S
Noob question here... Can someone eXplain to me what the advantages and disadvantages to under volting are? I saw it in the oC/UV beater but don't know what I'm doing. I tried set all to -25 and it locked up.
Sent from my HTC Vision using XDA App
coachmoore said:
Noob question here... Can someone eXplain to me what the advantages and disadvantages to under volting are? I saw it in the oC/UV beater but don't know what I'm doing. I tried set all to -25 and it locked up.
Sent from my HTC Vision using XDA App
Click to expand...
Click to collapse
Pros
-When you increase volt on high Frequencies it makes them stable, so 1.8GHz can be made stable
-Lower Volts mean more battery
Cons
-Increasing/lowering it to much can lockup phone
You should change each individual volt, every phone can't handle the same voltage range, some can go lower and others higher....
Pros
-When you increase volt on high Frequencies it makes them stable, so 1.8GHz can be made stable
Click to expand...
Click to collapse
how is this a "Pro" of undervolting?
-Lower Volts mean more battery
Click to expand...
Click to collapse
this would be more clear if you say: -Lower Volts mean more battery life
I was bored just messing around with overclocking with Tegrak. I was at 1350mV for a couple of minutes, it didn't seem to help my overclock stability. It might just be maxxed out though. What's the highest you guys have heard of?
brickwall99 said:
I was bored just messing around with overclocking with Tegrak. I was at 1350mV for a couple of minutes, it didn't seem to help my overclock stability. It might just be maxxed out though. What's the highest you guys have heard of?
Click to expand...
Click to collapse
Why do you want HIGHER voltages?
Tegrak limits you to 1400mv I'm sure for a resson so I use it for stabilizing 1.4ghz. Also raising internal voltage to 1150mv helps too.
Sent from my SPH-D700 using xda premium
ugothakd said:
Why do you want HIGHER voltages?
Click to expand...
Click to collapse
Cuz I'm a voltage junky.
j/k
You usually need higher voltages to maintain a stable overclock. I'm just wondering how high I can go so I don't destroy my phone, which probably isn't even possible with doing this.