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hi folks, thinking about leaving oc on permenantly (1200 mhz) I an aware of the dangers, but thought about getting some facts, my question is, how long have people been running art 1200 mhz without any issues, how many weeks or months?
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1200mhz refers to the highest clock. Your phone doesn't stick to that frequency all the time. It generally scales from 100mhz to 1200mhz. It doesn't really matter if you overclock your device except for effects on battery and I don't think there would be any effect on the Hardware as much as that of an Overclocked computer cpu and considering the average number of months people tend to use their mobile device before getting a new and a better phone.
dhiru1602 said:
1200mhz refers to the highest clock. Your phone doesn't stick to that frequency all the time. It generally scales from 100mhz to 1200mhz. It doesn't really matter if you overclock your device except for effects on battery and I don't think there would be any effect on the Hardware as much as that of an Overclocked computer cpu and considering the average number of months people tend to use their mobile device before getting a new and a better phone.
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my phone spends approx 20% of its time at Max freq, thats 1/5 th of its time. I think there would be more potential damage than a computer cpu as these have much better cooling (fans), I just want to know how long people have run at say 1200 without any issues.
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Longest time: two weeks ... whitout problems ...
I'm been overclocking my SGS for over 6 months now, no issues at all.
"Standard" voltage values seems to work fine on my device (1350mV at 1200MHz, 1400mV at 1300MHz) but I've tried to undervolt a bit more than once and had no issues as well.
Bye
There are absolutely no dangers in OC/UV. The worst thing to happen is a freeze or reboot once in a while if u go too high. I've been having 1.5mhz w/ some UV for like 2 months and nothing happened so no worries.
Been doing that for about a month now. No problem.
Knowledge is Power. Guard it well.
there are no risks if you overclock your device,but of course depends on how you do it. first of all i would not go past 1300mV which is the physical limit of our beloved hummingbird..of course you can do that,but past 1300mV you are going to shorten the life of your CPU. if you change phone every year then,there's no problem
then if you want to overclock keeping safe voltage values just get Tegrak Overclock,don't activate the "CPU MAX frequency" option,go in optimization tab instead and push up the max frequency by little steps keeping the voltage at the default value of 1275. test it a bit till you reach the most stable one. for example my CPU it's totally rocksolid 'till 1132MHz at 1275mV,no more. but there are CPUs which can archieve better results. then if you want to optimize and save battery consumption you can play a bit with UV on the other frequencies,cheers
I've undervolted my device and right now I have
100mhz - 825 mah
200mhz - 825 mah
500mhz - 800 mah
for some reason the 500mhz setting is stable and if I undervolt 100mhz/200mhz even more, I crash.
If I set my minimum processor power to 500mhz would I consume less batter than if I were to use 100mhz/200mhz?
Your phone spends most of its time in the lowest and highest cpu frequencies and just a small amount of time at the intermediate levels. Your undervolt for 500mhz probably isn't stable but it doesn't crash because it's only at that frequency for a very short amount of time. If you set the minimum to 500mhz at that voltage it will probably start playing up.
http:/ /db.tt/iy1bKVoB
graph of my cpu levels
Abit offtopic but what the hell!
I was wondering if there's any risks involved with undervolting?
I don't meen the crashes and freeze ups, but rather more like if there's any risk
to really damage your phone from it?
I have and still do alot of OC in the computer world, and do know what overvolting can do. But i'm still curious about what uv can do to your system.
Maskell said:
Your phone spends most of its time in the lowest and highest cpu frequencies and just a small amount of time at the intermediate levels. Your undervolt for 500mhz probably isn't stable but it doesn't crash because it's only at that frequency for a very short amount of time. If you set the minimum to 500mhz at that voltage it will probably start playing up.
http:/ /db.tt/iy1bKVoB
graph of my cpu levels
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It's been my minimum even before posting this thread. I just started to wonder.
I've been on it for 10 hours now. I have 45% battery life left. Probably due to my 1700mhz being @ 1350mah right now.
I can assure you, it's VERY stable. It's so SMOOTH. Smoother than just having rocketrom and all that stuff. NO LAGS, NO SHUTDOWNS. ALL STABLE.
I can see better battery life, and CPU Spy says it used up 47% 1700mhz and 40% 500mhz. I think it's giving me better battery life.
It's evenly splitted up probably because I was using lulzactive governor.
but then again I didn't log my previous battery life without undervolting.
Some more insight would be nice.
SweCrow81 said:
Abit offtopic but what the hell!
I was wondering if there's any risks involved with undervolting?
I don't meen the crashes and freeze ups, but rather more like if there's any risk
to really damage your phone from it?
I have and still do alot of OC in the computer world, and do know what overvolting can do. But i'm still curious about what uv can do to your system.
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Click to collapse
There are alot of risks. Minor chance that you will cause hardware damage to your phone but I'm saying VERY minor. Just don't be stupid with voltages, like just suddenly overdropping the voltages. Your processor might die.
It's scary as hell, it crashes alot while testing and all that ****.
Feels good when you get it stable though.
TL;DR
Very slight chance to damage your hardware; only if you're very daring.
It should increase your battery life by atleast 20% if you reach the peak of your processors limit.
Bump, are there no other insights on this? Am I like, the only one who undervolted his/her note?
help
clairenix said:
Bump, are there no other insights on this? Am I like, the only one who undervolted his/her note?
help
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I want to run 1700mhz as permanent and also wanted to undervolt but i wasnt sure how much by and what the risks are. Reason being is my phone gets hot with heavy usage running at 1400mhz so didnt want to go to 1700. I'll watch this thread with interest
kaos_king said:
I want to run 1700mhz as permanent and also wanted to undervolt but i wasnt sure how much by and what the risks are. Reason being is my phone gets hot with heavy usage running at 1400mhz so didnt want to go to 1700. I'll watch this thread with interest
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I'm running 500-1700mhz.
Indeed it does get hot at 1700mhz, when I'm playing games but I've only at most played for 4 hours straight.
For what reason would you want to run 1700mhz-1700mhz?
clairenix said:
I'm running 500-1700mhz.
Indeed it does get hot at 1700mhz, when I'm playing games but I've only at most played for 4 hours straight.
For what reason would you want to run 1700mhz-1700mhz?
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No sorry i meant running it at 1700 max, leaving it stock for the min. I just wanted to know how much i can safely undervolt 1700 by.
I actually have a question. I undervolted my note with SetCPU and I read that Tegrak Overclock Ultimate should be used as well together with SetCPU.
What does Tegrak Overclock do? GPU settings?
Would like to learn that part if anyone has any info.
kaos_king said:
No sorry i meant running it at 1700 max, leaving it stock for the min. I just wanted to know how much i can safely undervolt 1700 by.
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I undervolted mine by about 100mah. I think I can tone it down by about 25mah more but I'm having a hard time getting it to stabilize.
1350 for my device is completely safe though.
Though, all processors are different. Yours could be better than mine and can withstand more UV-ing.
Goodluck!
liutszho said:
I actually have a question. I undervolted my note with SetCPU and I read that Tegrak Overclock Ultimate should be used as well together with SetCPU.
What does Tegrak Overclock do? GPU settings?
Would like to learn that part if anyone has any info.
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Click to collapse
It's basically the same with SetCPU aside from its voltages.
I do not know if it should be used with SetCPU with the note because from what I've researched. It's only a common practice with SGSII.
Tried setting 100 and 200 mhz to 825. Crashed my phone twice in one day using it, gonna revert back to 875
clairenix said:
I undervolted mine by about 100mah. I think I can tone it down by about 25mah more but I'm having a hard time getting it to stabilize.
1350 for my device is completely safe though.
Though, all processors are different. Yours could be better than mine and can withstand more UV-ing.
Goodluck!
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Many thanks!
I will just experiment then, i didnt want to do that and then cause hw damage. I'll let you know how my processor gets on
Hi! i was wondering if Xperia X8 E15i could be overclocked to 1000MHz because i heard from my brother (he had this phone and then i got it) and his not sure because its not possible anymore to do it anymore.
My brother had my xperia long time ago and he had 1000MHz then later when he gave it to me he unrooted it and make it to normal Xperia
senci00 said:
Hi! i was wondering if Xperia X8 E15i could be overclocked to 1000MHz because i heard from my brother (he had this phone and then i got it) and his not sure because its not possible anymore to do it anymore.
My brother had my xperia long time ago and he had 1000MHz then later when he gave it to me he unrooted it and make it to normal Xperia
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864 mhz is max for msm7227 (or armv6...)
you cant go higher
and 864 is very unstabile:good:
OK but I use like this 600-800 MHz and I get no lags playing bike race but what is best?
Sent from my E15i using xda app-developers app
senci00 said:
OK but I use like this 600-800 MHz and I get no lags playing bike race but what is best?
Sent from my E15i using xda app-developers app
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High frequency-less CPU life
low frequency -long CPU life
Choose what u want
see my app sig at your own risk :
sent from my W8 running on armv7 processor problem??
@senci00: your brother is joking only with 1000MHz
@fotak-x: no, you can set higher frequencies than 864 with a modded frequency table. I made an experiment earlier and reach 921,6MHz, but:
-the phone was really unstable
-needed really cold environment (around zero celsius)
-to reach this frequency needed to extremely decrease all other frequency (axi and ahb bus), so the phone was slower
@Gogeta: basically the arm core can't produce enough heat to get physical damages due the overheating (the most critical part is the soldering what need around 280C temperature to damage, hard to reach it with 1-1,3 voltage and 100-200mA)
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pilu1978 said:
@senci00: your brother is joking only with 1000MHz
@fotak-x: no, you can set higher frequencies than 864 with a modded frequency table. I made an experiment earlier and reach 921,6MHz, but:
-the phone was really unstable
-needed really cold environment (around zero celsius)
-to reach this frequency needed to extremely decrease all other frequency (axi and ahb bus), so the phone was slower
@Gogeta: basically the arm core can't produce enough heat to get physical damages due the overheating (the most critical part is the soldering what need around 280C temperature to damage, hard to reach it with 1-1,3 voltage and 100-200mA)
Sent from my E15i using xda app-developers app
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So we can overclock to higher value without any problem???
I mean it doesn't damages anything so we should increase value
see my app sig at your own risk :
sent from my W8 running on armv7 processor problem??
Theoretically yes, you can set high frequencies with minimal risk. All arm cpu have extreme low power consumption (compared to the x86 cpus), the physical damage due the heat is minimal (but more than zero) The overclock ability of each 7x27 soc is different and depends on lot of thing (damages in the silicium structure, soldering quality between the core and the case, etc...). Some soc unstable on 700MHz, some working good on 800+ MHz. And the most x8 owner have "low quality" cpu, because under the manufacturing procedure all cpu tested, and the high quality cpus (what stable on 800-900MHz) marked and sold as 7x27T (turbo) with default 800MHz (this is normal, usually the manufacturers sold the damaged cpus with lower clock or disabled features, for example: you buy an i3 cpu into your desktop, but maybe the cpu manufactured as i5 with damaged core, and after disabling the damaged parts, sold as i3).
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I've always been a big fan of undervolting. These are the lowest voltages I can get stable at these common speeds. I found I can underclock the Matr1x kernel further than some others I have tried for some unknown reason. How low have you been able to go? Also, what programs do you use to test stability? So far, I have been running Antutu test completion as a measure of stability. Any suggestions otherwise?
288MHz - 650mv
1.02Ghz - 800mv
1.51Ghz - 1000mv
ROM: Bionic AOSP V3
Kernel: Matr1x 6.5
Noob question~ Why do people undervolt?
WarToilet said:
Noob question~ Why do people undervolt?
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To increase battery life,
The Long answer is that the CPU has a number of parameters where Clockspeed (MHz) and voltage (mV) are two. Clockspeed, well that is speed. Voltage is related to the amount of energy provided to the cpu, undervolting means that you feed the CPU less juice but demand that it runs at the same clocks. You are essentially starving the CPU,it uses less energy, but can become unstable if the voltage is insufficient to maintain operations. Manufactures always have extra voltage as a safety margin so power users can check their CPU bin (slow, normal, fast or faster) and lower voltages step by step until they crash the phone during a stress test, increase the voltage slightly and boom, your phone uses less battery power while being just as fast.
I undervolt to reduce heat. It makes a significant difference. The battery saving is minimal, but the temperature difference is VERY noticeable.
estallings15 said:
I undervolt to reduce heat. It makes a significant difference. The battery saving is minimal, but the temperature difference is VERY noticeable.
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Took words from my mouth. This this and this. It reduces heat, which in turn reduces battery use. UV by itself doesn't save a lot of battery, it's the consequences of it. I'm normally not a fan of UV, but with current N4 sw/fw it NEEDS it. It's way too high.
Interesting observation. As of recently my phone jumps up by 3-5c from 37-38 hover. Never used to do it before, not until i got it up to 50c for about half an hour last week. Previously it would stay steadily at 37-38, now it spikes up now and again during use. What's interesting about is that once it goes over 40c battery use increases drastically. So i wonder if people that have really good battery life don't have phones that go over that temp often and vice versa.
I haven't played around with the values too much yet, just a -100mV across the board. This seems to work just fine, so I might experiment some more..
Using Franco test-r69 at the moment.
Sent from my Nexus 4 using xda premium
I undervolt to prevent heating like others say. My Antutu scores drop like a rock when I'm at stock clockspeeds mostly likely due to thermal throttling. Now I can run it repeatedly without having scores drop. It saves battery and runs faster while running games even for very short periods of time, so I am a big fan of undervolting. :good:
Undervolt to reduce power usage, think of the stock voltage as normally being more than is required, think of running for a bus yet you have 2 minutes why waste energy when you can walk and still make it .
Undervolt for less power usage and less heat produced meaning battery performance is better (cooler battery is a more efficient one) and performance is up as you avoid any thermal limits in place .
Great stuff undervolting, I have managed to get -150mV across the board ( 1.5ghz @ 1000mV) and 288mhz is 162.5mV .
I came from a nexus s ... And one member of xda went to amazing lengths to show that undervolting really made very little differences in battery life ... And it def wasn't worth the instability .
He did loads of tests and I mean loads and basically showed that in helped so little that if you had a reboot you would use more power in rebooting then saving via undervolt
However . it is worth it for the heat decrease for sure
Sent from my Nexus 4 using Tapatalk 2
italia0101 said:
I came from a nexus s ... And one member of xda went to amazing lengths to show that undervolting really made very little differences in battery life ... And it def wasn't worth the instability .
He did loads of tests and I mean loads and basically showed that in helped so little that if you had a reboot you would use more power in rebooting then saving via undervolt
However . it is worth it for the heat decrease for sure
Sent from my Nexus 4 using Tapatalk 2
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The more the heat, the faster the battery drains. Since undervolting decreases heat, im sure it should increase battery life. Maybe not for browsing or calling, but playing a heavy 3D game.
is it normal that the higher the frequency the lower the voltage in setcpu?
screenshot: http://db.tt/k6r8c5oI
I'm quite new to nexus 4 undervolting, what's the average amount i can lower the voltages with? (i have a nominal CPU)
sent from my Nexus 4...
zakoo2 said:
how can you guys undervolt? is there an app for that? i bought Franco's kernel updater app, but there's no option to undervolt in there.
edit: just found an app called setcpu, is that it?
sent from my Nexus 4...
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You can do it from franco kernel updater, from frequencies and voltages - voltages - cpu voltages
But i dont recommend you to undervolt if you dont know what you do.
Sent from my Nexus 4 using Tapatalk 2
aimcr7 said:
You can do it from franco kernel updater, from frequencies and voltages - voltages - cpu voltages
But i dont recommend you to undervolt if you dont know what you do.
Sent from my Nexus 4 using Tapatalk 2
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I'm familiar with undervolting both on PC and on phone, but i had a Motorola defy before my nexus and undervolting there was a bit different.
sent from my Nexus 4...
zakoo2 said:
is it normal that the higher the frequency the lower the voltage in setcpu?
screenshot: http://db.tt/k6r8c5oI
I'm quite new to nexus 4 undervolting, what's the average amount i can lower the voltages with? (i have a nominal CPU)
sent from my Nexus 4...
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How are you able to undervolt with SetCPU? I'm not seeing that option using CM10, and Harsh's kernel.
italia0101 said:
I came from a nexus s ... And one member of xda went to amazing lengths to show that undervolting really made very little differences in battery life ... And it def wasn't worth the instability .
He did loads of tests and I mean loads and basically showed that in helped so little that if you had a reboot you would use more power in rebooting then saving via undervolt
However . it is worth it for the heat decrease for sure
Sent from my Nexus 4 using Tapatalk 2
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Click to collapse
Former nexus s user here, the reason nexus s didn't benefit in battery life much was that it only had 1 core, and used a higher nm manufacturing process, 65nm -> 28nm. Lower voltages in the 28nm means that it multiplies the heat/power savings more than a 65nm, and the 4 cores multiply the savings by up to 4.
FatalityBoyZahy said:
How are you able to undervolt with SetCPU? I'm not seeing that option using CM10, and Harsh's kernel.
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don't know, it was just there. did you try to reboot after installing the app?
I'm on Franco's kernel btw.
sent from my Nexus 4...
Pls what are the right values for under volting Samsung captivate
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I am new to this and my battery goes +40°C when I play simple games... I am running Franco's kernel r71 should I do UV? If so how much? Thanks in advance
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xtremer92 said:
Pls what are the right values for under volting Samsung captivate
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this is the lg nexus 4 forum.
sent from my Nexus 4...
So, I overclocked my CPU frequency to 1836MHz and my GPU frequency to 450MHz and after playing a game for like 10mins, my phone gets really hot. I know its normal but I would like to ask, did I overclocked my phone too much that it can destroy my phone? And what is the overheat temperature for my phone(HTC One)? So I can monitor it.
Thank you
Sent from my HTC One using XDA Premium 4 mobile app
qwertyuiop404 said:
So, I overclocked my CPU frequency to 1836MHz and my GPU frequency to 450MHz and after playing a game for like 10mins, my phone gets really hot. I know its normal but I would like to ask, did I overclocked my phone too much that it can destroy my phone? And what is the overheat temperature for my phone(HTC One)? So I can monitor it.
Thank you
Sent from my HTC One using XDA Premium 4 mobile app
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Yes its possible to permanently damage your phone if your overclock is too much aggressive or your phone get to hot. Every chip is slightly different so you'll have to test your phone for each frequency steps you do. Like a computer, you should start overclocking in small increments till you reach a maximum stable config and then reduce it a bit for safety. And always monitor temperature, over-temping is your worst enemy when overclocking.
For the max temp question I don't really know, you might want to check qualcomm site for max safe cpu temps. Don't forget some other components doesn't like high temperature. Semi-conductors components life are reduced in high temp conditions and generally, lithium-ion battery doesn't like high temperatures...
alray said:
Yes its possible to permanently damage your phone if your overclock is too much aggressive or your phone get to hot. Every chip is slightly different so you'll have to test your phone for each frequency steps you do. Like a computer, you should start overclocking in small increments till you reach a maximum stable config and then reduce it a bit for safety. And always monitor temperature, over-temping is your worst enemy when overclocking.
For the max temp question I don't really know, you might want to check qualcomm site for max safe cpu temps. Don't forget some other components doesn't like high temperature. Semi-conductors components life are reduced in high temp conditions and generally, lithium-ion battery doesn't like high temperatures...
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So basically, overclocking can really destroy my phone? So, i guess ill just switch back to the stock one. Thank you
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qwertyuiop404 said:
So basically, overclocking can really destroy my phone? So, i guess ill just switch back to the stock one. Thank you
Sent from my HTC One using XDA Premium 4 mobile app
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That overclock is not going to hurt your phone but the temperature can if it gets too high which can happen at stock clocking. I keep my phone's cpu at 1.134 Ghz and games run great with minimal heat.
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Found the information about the temp here