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
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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
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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
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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.
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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.
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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!
Related
How do you get kernal to overclock g2 to 1.9mhz
Sent from my T-Mobile G2 using XDA App
I thought at those it blows up!!!
Sent from my LG-P999 using XDA Premium App
You need flippys g2 fast kernel, http://forum.xda-developers.com/showthread.php?t=839687
Why do you want to OC to 1.9?
Sent from an ice cream sandwich
For me the 1.9 ghz kernel is a bit unstable for every day use . But oc at 1.5cm kernel works much better and 100% sable and battery friendly if you use profile in setcpu.
stian230 said:
For me the 1.9 ghz kernel is a bit unstable for every day use . But oc at 1.5cm kernel works much better and 100% sable and battery friendly if you use profile in setcpu.
Click to expand...
Click to collapse
Unfortunately, that varies by phone. Mine becomes unstable and 1.5GHZ
liltay53 said:
How do you get kernal to overclock g2 to 1.9mhz
Sent from my T-Mobile G2 using XDA App
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Click to collapse
I have to say. If you gotta ask dont do it! Make sure you setup good profiles for heat or you run a serious risk of frying your phone! Good luck some people got lucky and have no problems running 1.9. My phone has no problem with that speed until for some reason i have yet to discover somthing makes it heat up at random times. After that happened a few times i decided 1.5 is plenty.
Sent from my HTC Vision using XDA Premium App
I thinks it's underclocked @ 1.9Mhz
Root the phone
Install ROM Manager from the Android Market
In ROM Manager, flash Clockworkmod Recovery
Also in ROM Manager, backup ROM ("nandroid" backup)
Download the kernel and put it on the SD card.
Flash kernel from Recovery
Get SetCPU or CPU Tuner to set the CPU clock
As already mentioned, if you want to OC that high, SetCPU profiles with temp failsafes, etc. are a must. You might want to start with lower CPU clock speeds.
If you need more guides on how to get this done:
http://forum.xda-developers.com/showthread.php?t=916431
The Wiki guide is considered the safest way to root:
http://forum.xda-developers.com/wiki/index.php?title=HTC_Vision#Rooting_the_Vision_.28G2.2FDZ.29_and_DHD
kernel manager has it.
Yeah, it does. Unfortunately for me, it's stable for less than five blazingly-fast minutes Guess I'll stay at 1.5!
I think for a phone that was clocked at 800, 1.9 is far too risky. I have no factual basis to say that, just seems like common sense.
Sent from my HTC Vision using XDA Premium App
^I agree^ That doesn't seem logical....
I can't see OC our phones to 1.9 being good on any level. Seems like were trying to push the hardware a bit too far.
Is that how people are able to get Quadrant scores in the 2000+? I can't seem to get that high at all. I have been using pershoot's kernel with CM7...but now on nightly #91- using stock kernel now. I have been cautious on trying out this one...
liltay53 said:
How do you get kernal to overclock g2 to 1.9mhz
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Click to collapse
Why would you want to clock it down to 1.9 MHz when the stock speed is 800 MHz? Even an XT-8086 ran at 5-10 MHz. An 8080 (the year was 1974) ran at 2.0 MHz.....
dhkr234 said:
Why would you want to clock it down to 1.9 MHz when the stock speed is 800 MHz? Even an XT-8086 ran at 5-10 MHz. An 8080 (the year was 1974) ran at 2.0 MHz.....
Click to expand...
Click to collapse
I really think they meant GHz...at least I hope so...
dhkr234 said:
Why would you want to clock it down to 1.9 MHz when the stock speed is 800 MHz? Even an XT-8086 ran at 5-10 MHz. An 8080 (the year was 1974) ran at 2.0 MHz.....
Click to expand...
Click to collapse
Lol, i think he meant GHz, typo =P..
As for quadrant, my DZ easily hits an average of 2100+ when OCed to 1.3GHz using Virtuous G-Lite 1.0.2. I really don't trust those benchmarks though, as long as the battery lasts and the UI is smooth, I can't really complain.
Sent from my T-Mobile G2 using XDA App
Well...ok, I was just trying to make sure I wasn't missing a step. I am happy with my phone's performance, so I will not be concerned about that anymore.
Tommebaas said:
I thinks it's underclocked @ 1.9Mhz
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Click to collapse
Bravo! I can't believe nobody else caught that.
1.9Ghz will sometimes cause my phone to either overheat or crash. I have it set to 1.516Ghz on Pershoot's kernel.
Sent from a Western Union telegram.
Hey guys is it safe to use set cpu to oc evo? or what app would you recommend?
I use set CPU and it is safe to a certain point. If you overclock to far your phone will lock up and you will have to pull the battery. You have to experiment to see how far u can go. My phone is stable as a rock at 1152 MHz but gets llocked up at 1190 MHz so like i said experiement with it
Sent from my PC36100 using XDA App
614 mhz is the new OC! Try over clocking for sure but you see more profitable results under clocking. I do however use set cpu to OC when I am charging
Sent by Supersonic!
Fellas,im looking to use SetCPU to OC my evo,i need a custom kernel i assume.two questions.
1.can i flash a custom kernel using the mount/unmount zip in recovery for my GodMode Synergy?
2.What Are Good Values,im trying to safely underclock to save battery life.
HTC EVO 4G Synergy RC2
--We Are Revolutionary--
@gotheart, I strongly suggest freedom kernel by Lithid. There are bugs as it is in beta stage but he is an amazing developer and will implement an incredible kernel. He has one specifically for godmode so make sure you get that. He has versions that underVOLT the processor, using less battery. Though I would be cautious as some phones become very unstable with these changes.
Underclocking for CPU is variable... I like 614 MHz, some choose to go lower. I have noticed Sense ROMs (like synergy) are a bit more touchy with performance tweaks. For me, even in hot weather I need to bump my settings up, as my phone can't keep up with the heat.
Sent by Supersonic!
Thanks so much man.i was a dev at one point..but i dunno jack about clocking cpu.lol.so youre saying 614,as in set the max value to 614 correct?and i sure will check out that kernel
HTC EVO 4G Synergy RC2
--We Are Revolutionary--
Not to be a nag,but im digging for that kernel,no dice.can u link me over there pal?
Sent from my PC36100 using XDA Premium App
http://forum.xda-developers.com/showthread.php?t=1192529
I use 128 min and 614 Max. Depending on my use, and how often I'm flashing, I can get about 20 solid hours
Sent by Supersonic!
Thanks again man.i appreciate the assistance...we all needed it at one point lol.
Sent from my PC36100 using XDA Premium App
im using 128 MHz and 614MHz with the smartass governor.. runs really good
My best battery life is on AOSP ROM's with this set up on tiamat kernel.
Sent by Supersonic!
what aosp rom your running?
I had been running decks, however, I have jumped skip to SalvagMod.
Sent by Supersonic!
Ill also note a program i purchased,was cpu master by antutu inc.
Pretty much similar to setcpu.
Has profile options etc.
Sent from my PC36100 using Tapatalk
So I have a quick question for people running cm7. I am running cm7 with aveon 6 kernal. I was just wondering what over clock speeds do you guys use?
Sent from my Incredible 2 using XDA App
Dl no frills CPU and test for yoursef, each phone runs defferently and with no frills u can set as boot but if it is not a proper shutdown it will not set just in case it was due to the oc/ UV. Hope this helps and I run 1.5 ghz
Tap'n on miui incredible 2
Plus one on NoFrills. I'm using Aeroevans .7bfs kernel set at 1.2ghz and using the Sio I/O on nightly 133. This works well for me. Good balance of speed and battery life.
bsannes said:
So I have a quick question for people running cm7. I am running cm7 with aveon 6 kernal. I was just wondering what over clock speeds do you guys use?
Sent from my Incredible 2 using XDA App
Click to expand...
Click to collapse
OCing over 1.2 is useless unless you want battery to die fast
Running tiamat 1ghz gives me 30hrs on moderate
1.2 about lil more than a day
Tiamat is supposedly come out with new kernel this weekend or next.
Sent from my Incredible 2 using xda premium
I noticed you can't undervolt with areovans kernal. Or am I just using the wrong app? cause undervolt options don't show in voltage control
Sent from my Incredible 2 using xda premium
tk1o48 said:
I noticed you can't undervolt with areovans kernal. Or am I just using the wrong app? cause undervolt options don't show in voltage control
Sent from my Incredible 2 using xda premium
Click to expand...
Click to collapse
I'm using oc/uv beater app with aerovans. 7 bfs and can undervolt. Which app are you using?
With cm7 I actually like to underclock to around 800 with interactiveX. I have hit 1.9 stable using the smooth ass governor, and when I want to over clock I usually go for 1.2 or 1.4
Sent from my cyancredible 2.
Jeez, guys. Y'all are gonna burn out your processors running at speeds like that.
AgalychnisCallidryas said:
Jeez, guys. Y'all are gonna burn out your processors running at speeds like that.
Click to expand...
Click to collapse
I ran my Eris for over a year at 768. I'm running my inc2 at 1.4 and it never gets hot or anything...actually it runs cooler cause my my processor keeps up with my RAM.
Sent from my Incredible 2 using xda premium
Un1c0de said:
I'm using oc/uv beater app with aerovans. 7 bfs and can undervolt. Which app are you using?
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Click to collapse
Using voltage control free version. I recall on other kernals I was able to undervolt. I can't find that app in the market?
Sent from my Incredible 2 using xda premium
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
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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.
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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
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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
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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?
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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.
Hello, so as you know OC may have a detrimental effect on Xplay Hardware, I was wondering if OC at 1.0-1.2, maybe 1.3, will ultimately deteriorate the Xplay. I was waiting for intro of a PS1 game to pass 1.2ghz then fell asleep, and it stayed on until the battery shut down at 4%..probably was on a few hours I don't know
Lol, yea u can oc to 1.2 GHz in fact that's my normal OC settings for all games,
Sent from my R800i using xda app-developers app
I think its safe until 1.4
Depends on chipset, mine can go to 2 GHz but reboots after 20-40 mins and at 1.9 it stays for about 1 hours
And my safest oc is 1.8, buy I'm in lupus so 1.6 for now,
Sent from my R800i using xda app-developers app
frago21ps said:
I think its safe until 1.4
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Click to collapse
Agreed. Xperia Play can reach 1.4GHz easily without any serious issue. It can go further but being very carefully with CPU settings and dealing with the shorter battery life and the device getting hotter.
I run 1.6ghz all day and it's smooth 24/7. My battery hasn't really taken a hit at all.
My default clock is 1.6Ghz the majority of the time.
The chipset itself can handle 1.4Ghz according to the manufacturers guidelines and this clock has been set in another phone. (I don't remember which)
On the Xperia Play, you're not really effecting the hardware at all until 1.3Ghz as it is not until 1.3Ghz that the voltage requirement changes for the CPU.
Yea that's why I run 1.2 GHz on my stock battery to save it and not drain it! (I use 3600mah mostly)
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Spizzy01 said:
My default clock is 1.6Ghz the majority of the time.
The chipset itself can handle 1.4Ghz according to the manufacturers guidelines and this clock has been set in another phone. (I don't remember which)
On the Xperia Play, you're not really effecting the hardware at all until 1.3Ghz as it is not until 1.3Ghz that the voltage requirement changes for the CPU.
Click to expand...
Click to collapse
Arc s
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