Hi
I have try many kernels(and ROMS) and my phone keep to be unstable-crash after oc over 1.3 ghz.
Do you know why?
Thank in avdance!
maybe beacuse is too much you cant do it just like that.you can oc max to 1.15-1.25 for a daily use
i managed to get my phone stable 24/7 @ 1.3ghz with a decent kernel (i think i'm currently using signed_shazo's_kernel but not sure anymore) and voltage control to set clock and a bit more voltage on the cpu @ 1.3ghz... your battery will suffer and phone gets hot with heavy usage but the performance gains are substantial)
hope this helps
Related
I placed my SetCpu main profile(when screen is on) to ondemand from 800mhz to 1300mhz. I really like the performance boost for when playing flash or websites that have flash. I'm kinda worried though... do you think my phone will last at least a year with this kind of overclocking?
Should be fine...people are clocking much higher..plus I notice the cpu seems to settle into the overclocks...I could never get it to boot on 1.3 or 1.4 and after about two weeks on 1.2 I could get to 1.4 and stay on it....
Right so my phone can get pretty hot some times and I was just wondering if I undervolt it will it reduce the heat of my phone?
Also how much difference does UV actually show
It can't, because you can undervoltage not much or your phone won't be stable anymore.I think the easier way is to downclock your cpu speed.
likuku said:
It can help in term of technical, but in actually at the rate you can see the different of it.I don't think your phone will still stable or functional.
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That's really hard to understand what you're trying to say...
Sent from my HTC Sensation 4G using XDA App
likuku said:
It can't, because you can undervoltage not much or your phone won't be stable anymore.I think the easier way is to downclock your cpu speed.
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Galaxa12 said:
That's really hard to understand what you're trying to say...
Sent from my HTC Sensation 4G using XDA App
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He means that you can use an app like SetCPU to underclock or lower the clock frequency of your phones CPU, this will leave you a slower but cooler phone.
yes, if you undervolt you reduce cpu "power consuption" as equally as how many volt you decrese.. but.. if you undervolt too much, you lose cpu stability, so, if you undervolt you have to underclock, the same for overclock, if you overclock you may overvolt
it's different for all peoples, some users could have a better cpu (with less impurity), it can be overcloccked better with less overvolt, some can have a bad cpu chip, it means they have to overvolt so much for a little overclock
i have a sensation normally with -75mV undervolt and stock clock, it's stabe, so, am i lucky?
Temperature is a function of voltage + clockspeed. It is recommended you stay at 1.2ghz for good balance b/w performance, temp, and battery consumption.
To easily find your optimal voltage threshold, globally undervolt in stages of 12.5mv until your phone because unstable. Then increase it by 1 stage and that is the optimal voltage your phone should be running at.
Of course you can even go as far as tweak voltages at different clock speeds. Usually there is much more room to UV the lower clocks (192 and 384mhz around 800 or 812.5mv) than the higher clocks.
Hope this helps
iba21 said:
yes, if you undervolt you reduce cpu "power consuption" as equally as how many volt you decrese.. but.. if you undervolt too much, you lose cpu stability, so, if you undervolt you have to underclock, the same for overclock, if you overclock you may overvolt
it's different for all peoples, some users could have a better cpu (with less impurity), it can be overcloccked better with less overvolt, some can have a bad cpu chip, it means they have to overvolt so much for a little overclock
i have a sensation normally with -75mV undervolt and stock clock, it's stabe, so, am i lucky?
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Getting a Poco x3 pro soon and thinking about undervolting could you add me on discord and help me? If so add Gokn#4488
Hello. I have got Galaxy3 with Kyrillos ROM v9.4 non-OC. Yesterday I installed G3MOD v2.3 OC kernel. I set CPU (in setCPU) frequency for 1200MHz and CPU has got 35 Celsius Degree in game (eg Burn the Rope, Angry Birds) and about 29 Celsius Degree in Opera Mini.
Is it harmful for CPU or phone?
Will my phone broke down faster than phone with CPU freq at 667MHz?
What is safe temperature for CPU in Galaxy3?
Thank for any help.
mosak
Yes it will. But don't worry by that time you would have changed your phone. These chips are made to last at least five yrs. Bottom line: don't worry abt of, I use it all the time
Cheers
Sent from my i9003 powered by Poseidon's Rom/Dxkp9 Junior + UC kernel
you should keep the temperature below 30 degrees
I use oc at 800hz and it's really fast, but if you need more don't abuse on time with high frequencies
Same for me, I use on a daily basis OC from 83 to 800 in lagfree
and i don't feel a big difference when i OC to 1000, but I don't play games a lot, and the games I play generaly don't need a big cpu...
you can find some tips to set your cpu
here: http://forum.xda-developers.com/showthread.php?p=13355368
and here: http://forum.xda-developers.com/showthread.php?t=1322607
and here is the topic about overclocking: http://forum.xda-developers.com/showthread.php?t=1266712&highlight=cpu+oc
So you would recommend using oc ROM? I am I
Using non-OC kyrillos 9.4 and It seems pretty fast to me. How much would I Get with settings to 1000 mhz?
And what about battery consumption on 1000 mhz?
Sent from my GT-I5800 using XDA App
i haven't noticed significant change to battery life between non-oc and oc. although i generally keep my governor as conservative although on kyrillos ROM is set to on demand as standard and before i changed didn't see change in battery performance.
Sent from my GT-I5800 using XDA App
mosak said:
Hello. I have got Galaxy3 with Kyrillos ROM v9.4 non-OC. Yesterday I installed G3MOD v2.3 OC kernel. I set CPU (in setCPU) frequency for 1200MHz and CPU has got 35 Celsius Degree in game (eg Burn the Rope, Angry Birds) and about 29 Celsius Degree in Opera Mini.
Is it harmful for CPU or phone?
Will my phone broke down faster than phone with CPU freq at 667MHz?
What is safe temperature for CPU in Galaxy3?
Thank for any help.
mosak
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well i ve been using OC kernel for a long time...and it has not affected my phone in any bad way...it improves the performance....maybe u need to set sum profiles in setcpu....but all i can say that it doesnt affect the phone that much in my opinion but may eat up the battery....so better set the setcpu profiles
OC: Lagsfree, but shortens cpu's life...
Non-OC: Laggy, but save battery...
So overclocking cm7 to 1600 doesnt work and causes boot loops, i have been trying to get a kernel that would do it and i cant find one.
anyone know any kernels that work?
Only kernal for cm7 is the one that is with it no other kernals are compatible as for 1600 some phones run fine at 1600 others don't just depends on your CPU in your phone
Sent from my SGH-I997 using xda premium
^^^ what he said ^^^
my cappy was maginally stable @ 1300 within a very narrow voltage range. my infuse runs 100% @ 1664 with a ton of uv untill i turn on gps and everything starts to get warm. every cpu is different.
most infuses seem to be a higher test cpu than galaxy s phones though. you may be able to run at 1500 or better if you take a lot of time and figure out what the cpu likes and doesnt like. remember heat, uv and rapid voltage change can all cause instability so too much uv can cause problems as well as too little! to get maximum speed you may want keep the top few freq's at the same voltage (not the same uv but the same actual voltage) and have zero uv on the low freq's. it can be a pain to figure it all out but when you see the benchmarks you may think it was worth it.
ok well i kinda messed around with the overclocking built in and was messing with the type of governors and userspace seems to support over clocking on 1600.
really weird but my phone hasnt done the boot loop yet.
but thanks for your guy's help.
I set mine at 1600 last night via SetCPU. After 5 min it got hot and started boot looping. Its running good at 1200 now. I'm gonna bump it up little by little.
Good info, nice to know its "normal".
Honestly, the performance of CM7 outperforms all the other ROMS even running at 1.2GHz (IMO). I really don't see much of a performance increase by stepping up the clock speed, just a decrease in battery life, so it's not worth it to me.
ive talked to many people about this and most can only run at 1.4ghz even though 1.6ghz was stable in froyo. alot of people repeat "it depends on your specific chipset" but i dont buy that cop out. i think theres something wrong with the 1.6ghz setting in cm7.
I see a lot of overclocked kernel editions, and I am wonder could someone explane me, except extensive battery draining, instabillity and overheating of device, what is and is there any crucial positive point of overclocked kernels ?
Overclocked kernels are simply kernels whose speed limit had been raised above the stock speed.
That increases perrormans dramatically as is visible by different benchmarks utilities.
You are correct to assume that higher clock would require some extra voltage and that the phone will get hotter. But it is not always noticeable and is mostly depentant on the configuration.
The cpu clock is not always at the highest possible. Different governors define what speed should the cpu be at any time. If there's a lot of work the cpuspeed would increase and if it idles a lot it would decrease.
I love 3 oc kernels, Sebastian's, bricked and faux. They all have different philosophies but all are excelent, do not overheat and save gather.compared to stock though they allow higher cpu freqs.
I suggest you create a nandroid backup and try some of.there kernels. Give it atleast two days.before you make up your mind about it, and try another if you wish, till you find the one that is right for you.
Sent from my HTC Sensation using xda premium
I agree. I never see the point of over clocking. I always limit my processor to 1.18 or even 1.13 and never have any problems with overheating or poor battery life!
I used overclock kernels for a long time on my gs2. Its nearly the same like with a desktop CPU. Every CPU had it's own work range, many CPUs a
are even able to work with higher frequency but lower voltage than standard. This causes in higher speed with lower power consumption!
all you need is a kernel which allows individual voltage settings for each speed which you can set with setcpu.
BUT my opinion is that even the gs2 with 1,2 GHz dual core was faster than any Android app had needed, so the gs3 at all!
ATM I've setted the max frequency in setcpu to 600 mhz and I can't see any lags or missing speed...
So I guess many people are more looking for benchmarking than real practical advantage..
but undervolting is a real great thing for power hungry smartphones!
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You all right guys. That is why I asked myself that question because there is hard to find modded kernels with default speeds and all new goodies, because I have noticed even I "limit" overclocked kernel in my Hypersensation CM7 Cyanogen Settings, it happens that some kernels from time to time speeds up to overclocked value, even in settings they were limited, and that impact widespread device causes instabillity ( and corrensponding unpleasent situations of forced battery pulling).
Last good kernel what I find for my CM7 ( I don't like ICS) is Bricked_XE-1.6.beta7 and with this release of CM7 it seems that kernel edition further development stops.It runs on 1526 Mhz and I allways wonder why shouldn't it run "out of the box" on default speed...
Does anyone have suggestion link, (because I couldn't find it )for any CM7 modded kernel with all new goodies, but running on default Sensation XE Mhz speed ?
i have been using overclocked Kernels for a while now and rarely have any problems, the phone is quick, very quick and the battery drain is really not that different and that is running it at 1.72 with both cores permanently on
tin2404 said:
[...] because I have noticed even I "limit" overclocked kernel in my Hypersensation CM7 Cyanogen Settings, it happens that some kernels from time to time speeds up to overclocked value
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This really should not happen. The maximum frequency for a governor is set through /sys pseudo-fs and (assuming the governor is not buggy) strictly followed. Maybe you have some leftover scripts somewhere messing with /sys?
tin2404 said:
( and corrensponding unpleasent situations of forced battery pulling).
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And this should -- like already pointed out -- only be the case under heavy load. Normally, a sensible governor will only set frequencies necessary to satisfy the current load.