Hello,
First sorry for my bad English. What is the UV and ExUV? This is harmfull for telephone?
And
Note: If you got boot-loop with ExUV edition try Normal UV because your phone doesnt
supoort Very Low Voltages..
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Say this in kernel topic. I think all galaxy wonders are same it's wrong? All phones are different?
TheAreS said:
Hello,
First sorry for my bad English. What is the UV and ExUV? This is harmfull for telephone?
And
Say this in kernel topic. I think all galaxy wonders are same it's wrong? All phones are different?
Click to expand...
Click to collapse
UV is simply "Undervolt", which means reducing the voltage of a component, usually the processor, reducing temperature and cooling requirements. Another benefit of undervolting is conservation of battery power. ExUV is Extremely Undervolted. Some phones cannot simply handle too much undervolting resulting to phone unreliability or reboots.
UV = Undervolt
ExUV = Extreme Undervolt
The phones have some different things, there are some Galaxy Ws with LCD panel rev1, rev2 and rev3. Some GWs get bootloop when the boot is overclocked and some GWs can't work with extreme undervolt, just undervolt.
Enviado de meu GT-I8150 usando Tapatalk 4
I want to ask, Undervolt means underclock?
Related
I like the Doomkernel but overclocking the GPU scares me somewhat (since you can't change the GPU clock rate)
If the GPU/CPU is broken I don't think I can afford a new one...
So like the title, what OC rate is safe to use ?
All phones behave differently so some phones will oc to 2 GHz with no side effects while some won't go past 1.4 GHz
So u should try it yourself
Sent from my LT18i using xda premium
Oc above 1.4GHz without undervolt is dangerous
If you can undervolt 1.6GHz to 1250mV, 1.6GHz are safe, too
So just use 1.4GHz if you can't get a new phone in case you brick it
Sent from my iPad 2 using Tapatalk
wth_is_life said:
I like the Doomkernel but overclocking the GPU scares me somewhat (since you can't change the GPU clock rate)
If the GPU/CPU is broken I don't think I can afford a new one...
So like the title, what OC rate is safe to use ?
Click to expand...
Click to collapse
Just like a Computer CPU...you should only overclock in small increments..then check for stability.
Personally, i would advice against overvolting the phone..
I keep my phone @ 1.2GHZ..I don't find the need to go beyond this. Then again, i dont play too many games on it
I have "DooMKernel v4" and "Extreme Voltage Control" in the Arc S but did not appear the options to change the voltages. Why?
its here, https://play.google.com/store/apps/details?id=com.darekxan.voltagecontrol.plus&feature=search_result
is it like overclocking? and the most important is that i want to know if it can affect the heat that comes up on our phone when we increase the volt.
kemaro30 said:
its here, https://play.google.com/store/apps/details?id=com.darekxan.voltagecontrol.plus&feature=search_result
is it like overclocking? and the most important is that i want to know if it can affect the heat that comes up on our phone when we increase the volt.
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AFAIK this only can be use in custom kernel, not the stock kernel. If you increasing your cpu voltage it will increasing the cpu heat and that is not recomended. But if you get the voltage lower(undervolt) you can get the same power of your cpu but with more cooler cpu.
Sory for my bad english
Sent from my Wonder
jiunks said:
AFAIK this only can be use in custom kernel, not the stock kernel. If you increasing your cpu voltage it will increasing the cpu heat and that is not recomended. But if you get the voltage lower(undervolt) you can get the same power of your cpu but with more cooler cpu.
Sory for my bad english
Sent from my Wonder
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so you mean that undervolt can make my cpu cooler but no change on the performance?
yup.... i undervolting my laptop... but for my SGW there's some statement if not recommended because it effect in GPU... i just read in this SGW forum... http://forum.xda-developers.com/showthread.php?p=26962365
sory for my bad english
Sent from my Wonder
Hello to everyone! I've got a question: everyone knows that galaxy nexus cpu was made to work at 1.5ghz but it's downclocked to 1.2. Developers did a lot of kernels that can increase cpu clock. Now, everyone knows also that overclock brings instability sometimes and may damage permanently the phone. If it's true that our cpu is made to work at highest clock,can we consider it an "overclock" that includes risks like every overclocked kernel do,or it's safer than other phones overclock? Also,(here i appreciate some developer statements) the method used by kernel developer to overclock it's the same used by google own developers? Thanks in advance!
You can oc to 1.5ghz if your phone can handle, there are no more risk than flashing a kernel. But if you try to oc to 2ghz,there are a lot of risk. My phone is okay with 1.5ghz very smooth. If I want to go to 2.0ghz my phone freeze but work after pulling the battery. No fire. Try, and see if it works.
Sent from my Galaxy Nexus using Tapatalk 2
xorob0 said:
You can oc to 1.5ghz if your phone can handle, there are no more risk than flashing a kernel. But if you try to oc to 2ghz,there are a lot of risk. My phone is okay with 1.5ghz very smooth. If I want to go to 2.0ghz my phone freeze but work after pulling the battery. No fire. Try, and see if it works.
Sent from my Galaxy Nexus using Tapatalk 2
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I know,eveything works fine up to 1.5 ghz. Even if battery sucks,it's ok! But i want to know: if i'll use everyday my phone overclocked may i damage it?
Inviato dal mio Galaxy Nexus
No, but it depends of the temperature of your phone. If your phone is at 100°c yes it will damage your phone, return to 1.2,but if your phone's temperature is lower than 65°c all the time, no problem.
Sent from my Galaxy Nexus using Tapatalk 2
xorob0 said:
No, but it depends of the temperature of your phone. If your phone is at 100°c yes it will damage your phone, return to 1.2,but if your phone's temperature is lower than 65°c all the time, no problem.
Sent from my Galaxy Nexus using Tapatalk 2
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Do you mean battery temperature? For example that showen by spare parts or the radio menu? (*#*#4636#*#*)
Inviato dal mio Galaxy Nexus
Angelakaro said:
Do you mean battery temperature? For example that showen by spare parts or the radio menu? (*#*#4636#*#*)
Inviato dal mio Galaxy Nexus
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Hi,
No,CPU temperature...
In any case there is a thermal protection for the CPU...The limit depends of the kernel you will use.
Stock is 64°C,some have a limit at 75°C and for others you can disable the thermal protection or set a higher CPU temp limit.
In any case the max CPU temp is 110°C after the CPU shutdown...
If the limit is at 75°C,at above->thermal throttling->lower CPU freq to prevent damage.
There is already some threads about CPU temperature wher you can find what is normal or not.It mainly depends of your CPU settings/usage obviously...
But some phones can't handle some higher CPU freqs...
viking37 said:
Hi,
No,CPU temperature...
In any case there is a thermal protection for the CPU...The limit depends of the kernel you will use.
Stock is 64°C,some have a limit at 75°C and for others you can disable the thermal protection or set a higher CPU temp limit.
In any case the max CPU temp is 110°C after the CPU shutdown...
If the limit is at 75°C,at above->thermal throttling->lower CPU freq to prevent damage.
There is already some threads about CPU temperature wher you can find what is normal or not.It mainly depends of your CPU settings/usage obviously...
But some phones can't handle some higher CPU freqs...
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Click to collapse
Thanks! Another question: how can i monitor CPU temp? Is there an app to do it?
Inviato dal mio Galaxy Nexus
Angelakaro said:
Thanks! Another question: how can i monitor CPU temp? Is there an app to do it?
Inviato dal mio Galaxy Nexus
Click to expand...
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Just take a thermomether LOL
k.janku1 said:
Just take a thermomether LOL
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Ahahahah
Inviato dal mio Galaxy Nexus
1.5ghz is fine no damage should occur seeing as how the cpu in our phone is meant to run at that speed but was uc to probably save battery
Question. Why was it underclocked to begin with?
To extend battery life, probably
Angelakaro said:
Thanks! Another question: how can i monitor CPU temp? Is there an app to do it?
Inviato dal mio Galaxy Nexus
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Re,
If you use Francisco/Glados/Morfic's kernel they have their own applications with a ton of features/settings and in this case the CPU temperature->Go to the dev section
In the Play Store System Tuner...Hum...there must be others (though perhaps not that much ),but I don't remember...
While the CPU in the Nexus may be the same as the 1.5 Ghz ones in other devices you have to keep in mind that when a manufacturer knows they will be underclocking you will potentially get the cores that were made for 1.5 but couldnt handle it and therefore used for this application (all about yield and bin rates). So while most phones are likely fine at 1.5 Ghz (phone does get warm) its not a guarantee it will work
I'll try some apps to monitor my CPU and i'll update this thread with my personal experiences after overclocking/switching kernels. Thanks to everyone!
Inviato dal mio Galaxy Nexus
I'm now using aokp build 39 + franco kernel r190,1228 mhz max cpu,384 min,ondemand,384 mhz gpu. During deep sleep the average cpu temp is 42°. Using the phone (wi-fi activated,messagging and xda app) it reaches 55°. The max temp was reached playing nova 3 for about 20 minutes: 72° (overclocking to 1500 mhz and using interactive governor). Are this values normal?
Angelakaro said:
I'll try some apps to monitor my CPU and i'll update this thread with my personal experiences after overclocking/switching kernels. Thanks to everyone!
Inviato dal mio Galaxy Nexus
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TempMonitor is the one I use.
It'll be fine.. CPU gets throtled if it goes over 63C, unless you're running a custom throtle temp, or your kernel changes it. Shame they gimped these 4460's for more mass produciton and I think they were having stability issues? Regardless, this phone still flies @ 1.2.
I'm going to do my best to explain what SmartReflex (SR) does and when you should and should not use it. I’m just going to address MPU voltages.
I will be using TricksterMod to adjust kernel settings. I am running AK Diamond Kernel v20. I'll give examples of specific frequencies and voltages available on this kernel. On other kennels different frequencies and voltages may apply but the theory remains the same.
SR is a power management technology developed by Texas Instruments. It dynamically undervolts to what it determines is the lowest stable voltage at each frequency. I've attached a chart which shows the available frequencies (on AK Diamond v20), their default voltages with SR off, and their voltages with SR on. The SR voltages might be slightly different on each device due to various software and hardware factors, but they generally won't differ by more than +/-10mV.
To find the SR voltages of your device: turn SR on, set Max CPU to 1350, set Min CPU to 180. Then swipe to the "Info" tab, scroll to the very bottom, wait for the frequency to settle at Min CPU, and read the MPU voltage at the bottom right. Repeat this for each frequency. Texas Instruments calls these the “Optimized” voltages.
The default SR Off voltages can be found under Trickster’s “Specific” tab under MPU Voltages. I’ll call these the “Default” voltages. These are adjustable by the user.
Here's how it works: With SR Off, the Default voltages are the only voltages your device will use for each frequency. When SR is on the Default voltages act as a maximum. Your device will not operate at a higher voltage for each frequency than what is specified here. If SR determines your device can operate at lower voltages it will lower the voltage. Once again, these Optimized voltages can be found under the “Info” tab.
Taking the 525Mhz frequency as an example: the Optimized voltage is 820mV, the Default voltage is 1003mV. With SR on, these voltages act as the minimum and maximum, respectively. If you keep SR on and lower the “Default” voltage, for example by -50 to 953mV, you will set a new cap for the maximum voltage. This likely won’t have any effect because your device is operating at 820mV anyway. However if you turn SR off, your device will operate at 953mV.
If you keep SR on but adjust voltage to below the Optimized voltage, your selected voltage will apply. Continuing the example of 525Mhz, if you keep SR on but lower the Default voltage to 800mV, your device will operate at 800mV instead of 820mV.
Q1: When should I keep SR on?
A1: The short answer is “always”. If you manually set a voltage above the Optimized voltage, SR will use the Optimized voltage. If you manually set a voltage lower than the Optimized voltage, your selected voltage will apply. With SR on you are always at the lower of the two voltages (SR on voltage = minimum of Optimized voltage and Default voltage).
Q2: When does it not matter?
A2: When you set a voltage lower than or equal to the Optimized voltage, your device will operate at your chosen voltage whether SR is on or off.
Q3: When should I turn SR off?
A3: The only time you need to turn SR off is if you are intentionally overvolting your device. One might do this to increase stability or for testing purposes.
Q4: "I undervolted by lowering all the Default voltages by (for example) -50mV and turned SR off. Is that OK?"
A4: Taking another look at the voltage chart attached, you'll notice that many Default voltages are more than (for example) 50mV above the Optimized voltages. So lowering all Default voltages by the same value across the board with SR off will result in some frequencies being undervolted and some frequencies being overvolted. This is likely not the desired result. Keeping SR on will prevent unintentional overvolting. In that case you will be undervolting some frequencies and the rest will operate at the Optimized voltages.
In short, unless you’re intentionally overvolting you can just keep SR on.
You might have noticed that with SR on several frequencies often use the same voltage. This allows for efficiently under- or over-clocking your device. I have a thread about this here:
http://forum.xda-developers.com/showthread.php?t=2175147
Undervolting the Right Way: http://forum.xda-developers.com/showthread.php?t=1558080
AK Kernel: http://forum.xda-developers.com/showthread.php?t=1883298
Fantastic job! I admire your work:thumbup:
Sent from my Shining Nexus using AK DIAMOND ED.
really good !!!
Nice information .. thanks buddy. :good:
Subscribed and rated :good:
Really Really Really good ... i have added this link to my OP! :fingers-crossed:
Great thread
Sent from my Galaxy Nexus
Thank you kind sir....I'm new to rooting, i just flash and hope stuff works and this helped me understand it much better. Thanks again. BTW, I'm running AK's Diamond.
Sent from my Galaxy Nexus using Tapatalk 2
schnieb said:
Thank you kind sir....I'm new to rooting, i just flash and hope stuff works and this helped me understand it much better. Thanks again. BTW, I'm running AK's Diamond.
Sent from my Galaxy Nexus using Tapatalk 2
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great work szucsgf.. this is av very helpful and informative thread :good:
schnieb said:
Thank you kind sir....I'm new to rooting, i just flash and hope stuff works and this helped me understand it much better. Thanks again. BTW, I'm running AK's Diamond.
Sent from my Galaxy Nexus using Tapatalk 2
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In case it's helpful, here's a guide to kernels that I keep going back to. It's not for our phone but the info is general.
http://forum.xda-developers.com/showthread.php?t=1369817
Wow!! One of the best threads I ever read!
parthipanramesh said:
Wow!! One of the best threads I ever read!
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You're too kind! I'm glad it could be useful.
szucsgf said:
You're too kind! I'm glad it could be useful.
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Hello, I was wondering whether SmartReflex is enabled by default on the Gnex 4.3 factory image or not. Just an informative question as I'm already on Franco Kernel with SR enabled.
Feimitsu said:
Hello, I was wondering whether SmartReflex is enabled by default on the Gnex 4.3 factory image or not. Just an informative question as I'm already on Franco Kernel with SR enabled.
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It is. I didn't have to do anything to enable it in my 4.3 kernel.
Sent from my One using Tapatalk 4
tiny4579 said:
It is. I didn't have to do anything to enable it in my 4.3 kernel.
Sent from my One using Tapatalk 4
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Thanks. how did you check it? Trickster Mod?
Feimitsu said:
Thanks. how did you check it? Trickster Mod?
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Click to collapse
Yes, you can turn SmartReflex on or off using Trickster.
Great Job! Thank you very much!
Galaxy Nexus - Rasbeanjelly - Tapatalk 4
---------- Post added at 09:04 PM ---------- Previous post was at 08:59 PM ----------
I have two questions about the SR.
1. If you bench f.e. with antutu to you turn sr on or off?
2. what does sr core and sr iva mean?
Thanks
Galaxy Nexus - Rasbeanjelly - Tapatalk 4
f4iNER said:
Great Job! Thank you very much!
Galaxy Nexus - Rasbeanjelly - Tapatalk 4
---------- Post added at 09:04 PM ---------- Previous post was at 08:59 PM ----------
I have two questions about the SR.
1. If you bench f.e. with antutu to you turn sr on or off?
2. what does sr core and sr iva mean?
Thanks
Galaxy Nexus - Rasbeanjelly - Tapatalk 4
Click to expand...
Click to collapse
Thank you.
1. I tried benchmarks with sr on and sr off and there was no difference in score. The only reason I can think of to turn sr off for a benchmark is for stability purposes, i.e. to make certain that the CPU receives enough power just in case. But sr should dynamically adjust your voltage if necessary, so even in this case I suspect turning of sr isn't necessary. In short: probably doesn't matter either way.
2. Unfortunately I have never been able to discover exactly what core and iva are.
Sent from my Nexus 4 using Tapatalk 4
Great work man!!
Inviato dal mio Galaxy Nexus con Tapatalk 2
good read. thanks for your work!!
What I have to do to over clock my CPU from 1.8 Gz to 2.2Gz I'm on bootleggers unofficial ROM , any one who knows ?
Flash a kernel that supports overclocking. Then use an app of your choice to set the max frequency.
I assume you know the risk.
nyasaystheneko said:
Flash a kernel that supports overclocking. Then use an app of your choice to set the max frequency.
I assume you know the risk.
Click to expand...
Click to collapse
InsigniuX kernel supports over clocking.
Rykywype said:
InsigniuX kernel supports over clocking.
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Click to collapse
no only kirks and twistloop. as far as i know.
No-Name kernel.
For miui 10 : Kirks kernel, KangarooX Kernel,Ancient Kernel
nakulp said:
For miui 10 : Kirks kernel, KangarooX Kernel,Ancient Kernel
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Okay thanks buddy u r great
Overclock your cpu and watch your device die faster due to overheating.
The Restless Soul said:
Overclock your cpu and watch your device die faster due to overheating.
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Faster as opposite to what..like 2 years vs 5 years? Haha!
Max thermals reach 46-48 which is only 2 or 3 degrees higher than stock & the temps/cpu clock anyway get limited by the thermal engine automatically after that.
nakulp said:
Faster as opposite to what..like 2 years vs 5 years? Haha!
Max thermals reach 46-48 which is only 2 or 3 degrees higher than stock & the temps/cpu clock anyway get limited by the thermal engine automatically after that.
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Overclock will affect battery performance
SunilSuni said:
Overclock will affect battery performance
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i think he is aware of that
nakulp said:
Faster as opposite to what..like 2 years vs 5 years? Haha!
Max thermals reach 46-48 which is only 2 or 3 degrees higher than stock & the temps/cpu clock anyway get limited by the thermal engine automatically after that.
Click to expand...
Click to collapse
It depends. If you do a full overclock you can risk killing your motherboard faster.
Slightly overclocks don't affect with nothing if the cpu temperature increases with 1-4°c.
Still, getting better cooling on your phone is a much better choice. Changing the thermal paste etc etc.
This is irrelevant to the op's request/question.
I dunno why a simple question thread couldn't be followed up by discussion of simple answers?
Look, It doesn't matter even if it destroys the phone cuz that's not the point of the thread but if you were insisting to be pedantic then that still could have been added in the end but only if you'd chosen to atleast answer something relevant at first = being relevant.
Ultimately these types of posts/replies are no different than spamming say a redmi forum with lenovo or iphone related questions..
Regardless of the above, oc on current kernels is not dangerous as such because there is no alteration/upping of voltages manually.
*** There is also a fixed "setpoint" of temperatures, frequencies,voltages etc in the inbuilt thermal engine profiles which no simple oc of frequencies is going to get past through unless one decides to disable it manually . If the temperatures reach even the lowest thresholds of preconfigured "high" levels then the chipset will start to downclock at once in fixed steppings***