Related
Well I downloaded cpu master (free) to just mess around with my photon, and come to find out, the governor for the cpu is set to performance, but gave me the option to change it to powersave, so I switch it and I'll report back to you guys and see if I've found the holy Grail to even better battery life
Sent from my MoPho using XDA App
That's awesome
Sent from my MB855 using xda premium
Wait until I or another dev gets onDemand governor enabled...
I have SetCPU, and honestly, I haven't noticed a huge difference in battery life with powersave unless I seriously scale the CPU back to like 300 mhz. Then it'll last a while, if I don't do ANYTHING with it. For example, when I'm sleeping, otherwise, it just makes the phone laggy and doesn't seem to help enough to make it worth while. Just my opinion from screwing with it.
xTMFxOffshore said:
I have SetCPU, and honestly, I haven't noticed a huge difference in battery life with powersave unless I seriously scale the CPU back to like 300 mhz. Then it'll last a while, if I don't do ANYTHING with it. For example, when I'm sleeping, otherwise, it just makes the phone laggy and doesn't seem to help enough to make it worth while. Just my opinion from screwing with it.
Click to expand...
Click to collapse
The general consensus regarding over/underclocking when I had my HTC Hero was that overclocking would save battery because you could get what you wanted done faster. If you scale the CPU back massively while it is set to sleep, however, you will save a lot of battery.
xTMFxOffshore said:
I have SetCPU, and honestly, I haven't noticed a huge difference in battery life with powersave unless I seriously scale the CPU back to like 300 mhz. Then it'll last a while, if I don't do ANYTHING with it. For example, when I'm sleeping, otherwise, it just makes the phone laggy and doesn't seem to help enough to make it worth while. Just my opinion from screwing with it.
Click to expand...
Click to collapse
well, i don't know about your phone or what else you have setup, but my phone didn't lag and it seemed to help, i currently have my evo 3d active so my photon just sits there, so i can give a good feedback of idle time, but i can tell you after switching the governor, it went down 1% in 2 hours, now i say that's an improvement, so when i get back home i'll really give you guys some feedback
P.S. with any phone i had that had a fully custom kernal, i always used conservative governor
Well, perhaps it's just the apps I have running then. As I said, when it's set to sleep, it works pretty well with the powersave mode, otherwise, doesn't seem to make any real difference. Guess it's different for everyone cause of the **** they're running on their phone.
mrinehart93 said:
The general consensus regarding over/underclocking when I had my HTC Hero was that overclocking would save battery because you could get what you wanted done faster.
Click to expand...
Click to collapse
You know, I've never bought into this argument. To me, it is like saying that if I drive 100 mph I will get there faster, so I use less gas....which we all know is not how it works.
Maybe the physics are different for processors then they are for engines, but I think there is probably a happy medium somewhere. And I have a feeling that the manufactures really take this into consideration when they develop the kernels and ROMs. However, I might be wrong.
This is by no means an effort to discourage your awesome work. Everyone gets different results, but stock always seems to have the best battery life for me once all the bloat is gone. However, custom kernels do perform better. That is the trade off, in my opinion.
my2cents said:
You know, I've never bought into this argument. To me, it is like saying that if I drive 100 mph I will get there faster, so I use less gas....which we all know is not how it works.
Maybe the physics are different for processors then they are for engines, but I think there is probably a happy medium somewhere. And I have a feeling that the manufactures really take this into consideration when they develop the kernels and ROMs. However, I might be wrong.
This is by no means an effort to discourage your awesome work. Everyone gets different results, but stock always seems to have the best battery life for me once all the bloat is gone. However, custom kernels do perform better. That is the trade off, in my opinion.
Click to expand...
Click to collapse
Lol honestly I never bought into it either. I was just posting was the other devs at the time said. Even using an OC kernel, I never overclocked my phone.
mrinehart93 said:
Lol honestly I never bought into it either. I was just posting was the other devs at the time said. Even using an OC kernel, I never overclocked my phone.
Click to expand...
Click to collapse
Interesting...I hadn't thought about using an OC kernel and underclocking it back to stock. I wonder what that does, if anything, to performance.
The other concern that I have is that overclocking typically means more heat, which means more battery use... Just figured I would throw that out there too.
well, the results are in, now granted i already had the photon of the charge for more then 24 hours, so at 1d 15hr 57m and 10s i'm at 48%, but from the time i started the cpu test, 1:30pm, it was at 68% so in 8 horus there was only a 20% drop while idle, i say that's a good score , you guys tell me otherwise
A2CKilla said:
well, the results are in, now granted i already had the photon of the charge for more then 24 hours, so at 1d 15hr 57m and 10s i'm at 48%, but from the time i started the cpu test, 1:30pm, it was at 68% so in 8 horus there was only a 20% drop while idle, i say that's a good score , you guys tell me otherwise
Click to expand...
Click to collapse
and just an update, in another 4 hours, it's only gone down 2%!!!!!! come on guys, these numbers can't lie, but remember this is idle feedback, i'll re-activate my photon at the end of the week (missing the beast!) to give more detail feedback on heavy usage and most importantly 4g!!
Development. Development. Development.
Sent from my MB855 using xda premium
Not sure if this will help but let me explain the car analogy. All motors have an effeciency range at x amount of throttle. So same cars will get better gas mileage at a higher speed vs a lower one. Its getting up to that speed where most energy is used.
So let me move this over to electronics. If you run a faster clock speed while on, your apps will open faster so that ia less on time for the screen and other processes that have to run. So using more watts for less time does not always equal more than using less watts for more time. We just need to fill in those blanks and obviously overclocking will not benefit the nook or internet reader as it eould someone who opens a lot of apps for short periods. Same is true for a gamer .
Hope that makes sense and this is all IMHO of course.
Sent from my MB855 using XDA App
scoobdude said:
Not sure if this will help but let me explain the car analogy. All motors have an effeciency range at x amount of throttle. So same cars will get better gas mileage at a higher speed vs a lower one. Its getting up to that speed where most energy is used.
So let me move this over to electronics. If you run a faster clock speed while on, your apps will open faster so that ia less on time for the screen and other processes that have to run. So using more watts for less time does not always equal more than using less watts for more time. We just need to fill in those blanks and obviously overclocking will not benefit the nook or internet reader as it eould someone who opens a lot of apps for short periods. Same is true for a gamer .
Hope that makes sense and this is all IMHO of course.
Sent from my MB855 using XDA App
Click to expand...
Click to collapse
Let me start this off by saying that I am an agricultural engineer by trade. With that said, I would agree that engines have an efficiency range. However, I would not agree that it is at x throttle. Rather, it is a x load. And most cars are designed to be at optimal load at about 60 mph (wind resist, weight, etc. play a role in this). You're right, it does require more fuel to get to that speed because the load is higher until that speed is reached. Furthermore, higher speeds (greater than 60 mph) do NOT translate into higher fuel mileages because the load increases to maintain the higher speed (because there is more wind resistance, among other things).
I know a bit about electricity too, but I don't fully understand the physics behind circuit boards. However, I think the analogy still holds. I can get to 60 mph as fast as I want, but the faster I do it the more energy is required. Therefore, even though it is done faster it still requires more energy, which also creates more heat, both of which use the battery. So, I continue to contend that there is a happy medium that most be found and I think electronic engineers aren't to far off.
Here is a little more reading about car efficiency, if you are interested: http://www.mpgforspeed.com/
I believe your confusing overclocking and overvolting. We are putting x volts into the processor so the more cycles we can get in x volts the better. If we have to overvolt to overclock then we see big battery hits.
Sent from my MB855 using Tapatalk
2cents, that link is interesting but real world examples have proven otherwise to me. Our saab will do better on mpg at 70 to 75 (30 on cruise control) vs 55 to 65(27 to 28 on cruise). Now the wrx is another story as well. With the old 3.9 final drive i would pull in more air at the airflow meter at 65 than i would at 70 with stoich as the target a/f ratio, and because that motor was doing under 2500 rpms the turbo was out of the equation further taking out efficiency with it. Now with the 4.44 and a better 1-2 gear ratio car gets better at the lower engine speeds and accelerates even better and that was before i retuned it.
Another misconception is bigger motors use more gas, one of the recent corvettes get 30 on the highway proving that there is more to this as well.
I think i have taken this off topic enoigh for now. But in general i think my formula still needs to be applied to see the results as a valid number to compare overclocking and underclocking to running stock.
Sent from my MB855 using XDA App
i'm surprised no one even thought of this topic, regardless if things are getting done "faster" you are overclocking the cpu, making it go faster then what it's suppose to, which makes it use more power i.e. more battery, every phone that i had when i overclocked it, the battery wouldn't last too long, even with my 3500mah OG evo, if i overclocked it, i couldn't get a whole day, so underclocking will have the same effect in a sense since the processor now has to work harder to do what it does at it's stock clocked speed, well, hope anything i said here makes any logical sense, but on another note, the photon has gone almost 3 days unplugged!!!
again it depends on how the overclock is achieved. In most cases overclock is achieved by dumping more electricity into the cpu this will impact battery life, however alot of chips these days can be overclocked at the same volts essentially upping the "MPG" or clocks per volt.
A2CKilla said:
i'm surprised no one even thought of this topic, regardless if things are getting done "faster" you are overclocking the cpu, making it go faster then what it's suppose to, which makes it use more power i.e. more battery, every phone that i had when i overclocked it, the battery wouldn't last too long, even with my 3500mah OG evo, if i overclocked it, i couldn't get a whole day, so underclocking will have the same effect in a sense since the processor now has to work harder to do what it does at it's stock clocked speed, well, hope anything i said here makes any logical sense, but on another note, the photon has gone almost 3 days unplugged!!!
Click to expand...
Click to collapse
I agree with this for the most part. When it comes to power the end result is watts, which is essentially equal to volts x amps. It is not perfect because of a power factor, but it is close. Therefore, if you lower the voltage, the amperage goes up because the same watts are required to run the processor. The inverse is also true. These processors have voltage ranges that they will safely run in, but in the end, they require the same energy (in watts) to function at a given load. Change one a little bit (the voltage for example) and the other (amperage) compensates. Change it a lot and it likely wont work. Again, this is how it works for your typical home appliances. For a circuit board, it might be a slightly different story, but I imagine the science does not change.
---------- Post added at 03:57 PM ---------- Previous post was at 03:47 PM ----------
scoobdude said:
2cents, that link is interesting but real world examples have proven otherwise to me. Our saab will do better on mpg at 70 to 75 (30 on cruise control) vs 55 to 65(27 to 28 on cruise). Now the wrx is another story as well. With the old 3.9 final drive i would pull in more air at the airflow meter at 65 than i would at 70 with stoich as the target a/f ratio, and because that motor was doing under 2500 rpms the turbo was out of the equation further taking out efficiency with it. Now with the 4.44 and a better 1-2 gear ratio car gets better at the lower engine speeds and accelerates even better and that was before i retuned it.
Another misconception is bigger motors use more gas, one of the recent corvettes get 30 on the highway proving that there is more to this as well.
I think i have taken this off topic enoigh for now. But in general i think my formula still needs to be applied to see the results as a valid number to compare overclocking and underclocking to running stock.
Sent from my MB855 using XDA App
Click to expand...
Click to collapse
You may be right. Perhaps Saab designed their fuel efficiency at 70 mph. It's possible because many speed limits are now at or near that, but in general, optimal fuel consumption is going to be at or near 60 mph. Obviously gear ratios and such play a huge role in fuel economy. It is like using a custom rom, typically your mods will make it perform better, but the best fuel economy or battery life will come with a stock like setup.
Sure a corvette can have HP and economy. There is a power to weight ratio and lots of aerodynamics involved, which again is designed at a specific speed. But there is no way that a dragster will have a good fuel efficiency. To my point, there is a balance...
I agree, we are off topic a little bit, but the conversation is interesting, nonetheless.
By the way, can a mod move this to general, please?
So after playing Nova my S3's gets really hot and this will actually affect it's performance (for example: 2700 quadrant score with a CPU score of 3700 instead of 5600 13000)
Is this supposed to happen?
fenjen said:
So after playing Nova my S3's gets really hot and this will actually affect it's performance (for example: 2700 quadrant score with a CPU score of 3700 instead of 5600 13000)
Is this supposed to happen?
Click to expand...
Click to collapse
Yes, I believe this is called "throttling", which happens when the CPU becomes too hot, it kinda temporarily downclocks so it doesn't generate so much heat. A safeguard to prevent it from getting so hot that it'll melt.
When the CPU has cooled down, you'll notice it has reverted to whatever clock frequency you normally have.
I find my device gets hot whilst playing Sims Freeplay....haven't a clue why, but I'm not technically minded so I can't comment or speculate
Sent from my GT-I9300 using xda premium
Theshawty said:
Yes, I believe this is called "throttling", which happens when the CPU becomes too hot, it kinda temporarily downclocks so it doesn't generate so much heat. A safeguard to prevent it from getting so hot that it'll melt.
When the CPU has cooled down, you'll notice it has reverted to whatever clock frequency you normally have.
Click to expand...
Click to collapse
Really helpful. Thank you very much.
then hit his thanx button
zodiaxe66 said:
then hit his thanx button
Click to expand...
Click to collapse
I already did before your comment -.-
fenjen said:
Really helpful. Thank you very much.
Click to expand...
Click to collapse
You're very welcome!
Theshawty said:
Yes, I believe this is called "throttling", which happens when the CPU becomes too hot, it kinda temporarily downclocks so it doesn't generate so much heat. A safeguard to prevent it from getting so hot that it'll melt.
When the CPU has cooled down, you'll notice it has reverted to whatever clock frequency you normally have.
Click to expand...
Click to collapse
Quoted for truth.
Great answer.
"It's all in the game yo, all in the game..." - Omar Little
That's because Wifi and The Game is launched in the same time that's why it get so much hotter.
I do still have one question.. Is my phone even supposed to get so hot while playing this game that is has to throttle?
We have smashed into the performance ceiling. Without active cooling or massive increases in efficiency through improved architecture, there is no way smartphones (or tablets) can become more powerful.
I can't use 75% of this phone's potential performance while playing San Andreas. With a custom kernel and thermal throttling disabled, the phone shoots up to 90c in minutes and then reboots; that is with 'On Demand' and max frequency at 1.73 ghz.
Coming from a gnex (max stock freq. could reach 80c), absolute performance has become meaningless. Maybe it has been for a while.
This is absolutely true. We need fans or cooling systems if we shall be able to take full advantage of the massive powers in our phones. For now, I think the only way is to play our favorite games in a freezer.
Sent from my LG-D802 using xda app-developers app
otherwise lg would melt ...
or, you can root your phone and disable thermal throttle. then you can use it at full performance up until you reach the thermal shutdown temp without worrying your cpu being thermally throttled
and i had a gnex as well, it could reach 110C. i always turned off thermal throttle, and always turn off thermal throttle on my nexus 5. you dont reach thermal shutdown without actively trying too, and the cpu doesn't get throttled.
crazysoccerman said:
We have smashed into the performance ceiling.
Click to expand...
Click to collapse
While that statement was not even close to being true when you posted it, tomorrow it'll be less true, etc etc.
If you build the exact same chip with a smaller die process, the smaller die process chip will be more efficient (cooler) and faster. Then there are of course other improvements that are continuously being made, more cores to spread the load, faster ram to reduce bottlenecks, etc, etc, again, all while getting faster and cooler because of improved production methods.
So no, phones will get more powerful, more ram, better screens etc.. Maybe someday we'll have another battery breakthrough, but right now with the massive push on efficiency we're getting some runtime back on batteries, etc.
khaytsus said:
While that statement was not even close to being true when you posted it.
Click to expand...
Click to collapse
Actually it is true. The performance on the G2 is limited by heat. You can't run the phone under load at or near its max specified frequency for any reasonable period of time. Try it yourself. To deny that is to deny facts.
Also, a smaller die reduces the surface area for the dissipation of heat.
crazysoccerman said:
Actually it is true. The performance on the G2 is limited by heat. You can't run the phone under load at or near its max specified frequency for any reasonable period of time. Try it yourself. To deny that is to deny facts.
Also, a smaller die reduces the surface area for the dissipation of heat.
Click to expand...
Click to collapse
Read the OP, it states "smartphones". Oh wait, you are the OP
vPro97 said:
This is absolutely true. We need fans or cooling systems if we shall be able to take full advantage of the massive powers in our phones. For now, I think the only way is to play our favorite games in a freezer.
Sent from my LG-D802 using xda app-developers app
Click to expand...
Click to collapse
Lol fans aren't a good solution
Sent from my VS980 4G using Tapatalk
Time ago a saw a cooling case. If i find the site again, i will post it.
Imagine the HTC One, but with a heat pipe transferring heat from the SOC to the aluminum case... That would provide more cooling, but I'm not sure of the size penalty of the heat pipe.
Also, more efficient chips CAN provide more power and generate less heat. A perfect example is Intel's pentium4 "netburst" architecture vs the newer and considerably more efficient "core duo" chips.
Take care
Gary
Sent from my Nexus 7 using Tapatalk
are there any phones out there that don't heat up while performing great in all demanding titles?
Sent from my LG-D801 using xda app-developers app
well yeah smartphones aren't designed to run at 100% of the cpu/gpu speed for long periods of time. If they were, they would have to be a lot bigger and/or have active cooling. I guess I never really noticed the "wall" because all the mobile games I play do not push the phone to the limit. When you are comparing it to the past though, remember the newest CPUs are significantly faster clock for clock. 1.5ghz is not the same for an A9 vs Krait 400.
So what iz the solution ? Do we have any modification or init.d script to disable that cooling system ?
Solution Is a thermal pad on CPU
Mantra96 said:
Solution Is a thermal pad on CPU
Click to expand...
Click to collapse
:V ...
---------- Post added at 10:41 AM ---------- Previous post was at 10:40 AM ----------
Vipxpert said:
:V ...
Click to expand...
Click to collapse
It's time to void warranty ! :V
Im taking a poll on the average rezound user cpu frequency for development
bunchies said:
Im taking a poll on the average rezound user cpu frequency for development
Click to expand...
Click to collapse
lol... I would always underclock to the 1200Mhz range to save battery, or use the stock 1512 with a more conservative governor like Intellidemand, rarely ever overclocked and when I did it was just to test something or run a quick benchmark, never really saw any real gain to it at all, always thought it was better to lower the bottom end as low as you could get it to 96-192Mhz so that even if something kept it awake, it would barely be running.
Whenever I'm running "Intensive items" I sometimes overclock. Most of the time I try to underclock to save battery as ace said. Although Doesn't really save that much battery. I stay at stock 1.5GHz a lot though...
pball52998 said:
Whenever I'm running "Intensive items" I sometimes overclock. Most of the time I try to underclock to save battery as ace said. Although Doesn't really save that much battery. I stay at stock 1.5GHz a lot though...
Click to expand...
Click to collapse
True... Underclocking the top end doesn't do much, although if you can lower the bottom end, and undervolt some, it can make a big difference when sleeping.
Sent from my Nexus 4 using Tapatalk
acejavelin said:
True... Underclocking the top end doesn't do much, although if you can lower the bottom end, and undervolt some, it can make a big difference when sleeping.
Sent from my Nexus 4 using Tapatalk
Click to expand...
Click to collapse
O you're saying when sleeping. Holy crap YES!! It makes a HUGE difference. I run sense 5 a lot (running that right now) and the battery life on "sleep" is already great, but when I underclock like I did the other day, I forgot to plug my phone in that night, it was at 5% I woke up and it was at 4% 8 hours later only 1% lost. Of course thats on Snuzzo's funky kernel and underclocked, but DANG!!! NEVER seen my battery life that good. The 4% also lasted another 5 hours without use! Don't know how but it did. :laugh::good:
Depends what I'm doing, usually under clocked to save battery throughout the day. I used to record YouTube videos on my rez, I would over clock for recording and benchmarks, finding the perfect i/o scheduler, governor and clock speed to run stable was fun.
Sent from my ADR6425LVW
1728. Fastest mine goes without being unstable.
bunchies said:
Im taking a poll on the average rezound user cpu frequency for development
Click to expand...
Click to collapse
1728 all the time.
Sent from my ADR6425LVW using Tapatalk
Some phones are great to take camping because if you play Asphalt 8 long enough, the back warms up to the ideal temperature that can bake bread. Rate this thread to express the extent to which the Samsung Galaxy Note 10+ stays cool under extended heavy use. A higher rating indicates that even when playing strenuous games for long periods of time, the phone doesn't get uncomfortably warm.
Then, drop a comment if you have anything to add!
No Q here...
XDA_RealLifeReview said:
Some phones are great to take camping because if you play Asphalt 8 long enough, the back warms up to the ideal temperature that can bake bread. Rate this thread to express the extent to which the Samsung Galaxy Note 10+ stays cool under extended heavy use. A higher rating indicates that even when playing strenuous games for long periods of time, the phone doesn't get uncomfortably warm.
Then, drop a comment if you have anything to add!
Click to expand...
Click to collapse
The heat pipe system in it works very well... this phone should never run hot. If it does, something is wrong.
Mine needed extensive optimization to run cool... it's my favorite phone now. Like having a laptop in my palm. Avoid "upgrading" to Q, it's a nightmare.
[email protected] said:
The heat pipe system in it works very well... this phone should never run hot. If it does, something is wrong.
Mine needed extensive optimization to run cool... it's my favorite phone now. Like having a laptop in my palm. Avoid "upgrading" to Q, it's a nightmare.
Click to expand...
Click to collapse
All phones with good cpu/gpu get hot when gaming for long time.
There is not any thing wrong with that.
Exynos phones get very hot ingame, cpu temp can go up to 70c.
If your note 10 don't get warm after 1h asphalt 8 there is something wrong with it like low fps and or trottle.
Batteri temp in heavy game around 40c
Cpu temp in heavy game (Exynos chip) 60c-70c.
Your phone will be warm..
XDA_RealLifeReview said:
Some phones are great to take camping because if you play Asphalt 8 long enough, the back warms up to the ideal temperature that can bake bread. Rate this thread to express the extent to which the Samsung Galaxy Note 10+ stays cool under extended heavy use. A higher rating indicates that even when playing strenuous games for long periods of time, the phone doesn't get uncomfortably warm.
Then, drop a comment if you have anything to add!
Click to expand...
Click to collapse
robalm said:
All phones with good cpu/gpu get hot when gaming for long time.
There is not any thing wrong with that.
Exynos phones get very hot ingame, cpu temp can go up to 70c.
Click to expand...
Click to collapse
Talking about unwarranted running hot. dah.
The hottest my phone has reached playing games was 45°c. But it mostly sits at 43°c when gaming. Is that good?
Too hot
denism81 said:
The hottest my phone has reached playing games was 45°c. But it mostly sits at 43°c when gaming. Is that good?
Click to expand...
Click to collapse
No.
107 F is too hot*. This isn't a desktop cpu; running an LI battery this hot will greatly diminish its lifespan.
Some of the CPU heat plus the extra current drain heat the LI bat up. I never let my battery temp exceed 103 F when in use or 100 F during a charge. >85 during charging is better.
Put a damp rag around it or on the backside if in use to cool it if the ambient temp is too high...
*43 C is fine for CPU temp as long as the battery isn't getting baked. F is easier for real world temp measurement.
My cpu and chips are running at about 104 F while the battery is at 95F; the ambient temp is about 90 F, acceptable.
This with a light cpu load with brightness at about 40%
For heavy cpu usage at these temps for more than 10 minutes would drive the battery temp unexceptably high without external cooling.
Monitor the battery temp. Lol, if the phone feels very warm/hot it's damp rag or shutdown time.
F is easier for"real world" ? F are only used in ONE country! Which, by no means equals ALL the world, science, real science uses metric system
denism81 said:
The hottest my phone has reached playing games was 45°c. But it mostly sits at 43°c when gaming. Is that good?
Click to expand...
Click to collapse
winol said:
F is easier for"real world" ? F are only used in ONE country! Which, by no means equals ALL the world, science, real science uses metric system
Click to expand...
Click to collapse
The Fahrenheit scale is centered around the temperature zone most used by humans.
A 10° F isn't too much a of a change but modest amount.
A 10° C change is huge.
It's ackward to use in real life... suffer.
[email protected] said:
The heat pipe system in it works very well... this phone should never run hot. If it does, something is wrong.
Mine needed extensive optimization to run cool... it's my favorite phone now. Like having a laptop in my palm. Avoid "upgrading" to Q, it's a nightmare.
Click to expand...
Click to collapse
robalm said:
All phones with good cpu/gpu get hot when gaming for long time.
There is not any thing wrong with that.
Exynos phones get very hot ingame, cpu temp can go up to 70c.
If your note 10 don't get warm after 1h asphalt 8 there is something wrong with it like low fps and or trottle.
Batteri temp in heavy game around 40c
Cpu temp in heavy game (Exynos chip) 60c-70c.
Your phone will be warm..
Click to expand...
Click to collapse
[email protected] said:
No.
107 F is too hot*. This isn't a desktop cpu; running an LI battery this hot will greatly diminish its lifespan.
Some of the CPU heat plus the extra current drain heat the LI bat up. I never let my battery temp exceed 103 F when in use or 100 F during a charge. >85 during charging is better.
Put a damp rag around it or on the backside if in use to cool it if the ambient temp is too high...
*43 C is fine for CPU temp as long as the battery isn't getting baked. F is easier for real world temp measurement.
My cpu and chips are running at about 104 F while the battery is at 95F; the ambient temp is about 90 F, acceptable.
This with a light cpu load with brightness at about 40%
For heavy cpu usage at these temps for more than 10 minutes would drive the battery temp unexceptably high without external cooling.
Monitor the battery temp. Lol, if the phone feels very warm/hot it's damp rag or shutdown time.
Click to expand...
Click to collapse
Good thing you don't have the Exynos version.
The idle cpu temp is around 50c with about 20-25c room temp.
What program to you monitor cpu and chips with?
robalm said:
Good thing you don't have the Exynos version.
The idle cpu temp is around 50c with about 20-25c room temp.
What program to you monitor cpu and chips with?
Click to expand...
Click to collapse
122 F is really hot for a cell phone... a very expensive hand warmer. When a phone feels hot; it's already too hot. This will greatly shorten LI life especially if above a 90% charge.
Current drain* at idle with 50% brightness level should be below 220 ma. Typical idle current on this one averages at 140-200 ma.
If it's running >400 ma, something's running in the background sucking the life out of it.
I use different temp apps. Been playing with the Gitlab one.
It's 26.6C (80 F) ambient temp here and the CPU is averaging about 35.5 C (96 F) as I'm using the Note.
Battery temp is the only one I need to really watch.
I monitor that and battery current drain.
*AT&T variat, not rooted but heavily optimized.
[email protected] said:
122 F is really hot for a cell phone... a very expensive hand warmer. When a phone feels hot; it's already too hot. This will greatly shorten LI life especially if above a 90% charge.
Current drain* at idle with 50% brightness level should be below 220 ma. Typical idle current on this one averages at 140-200 ma.
If it's running >400 ma, something's running in the background sucking the life out of it.
I use different temp apps. Been playing with the Gitlab one.
It's 26.6C (80 F) ambient temp here and the CPU is averaging about 35.5 C (96 F) as I'm using the Note.
Battery temp is the only one I need to really watch.
I monitor that and battery current drain.
*AT&T variat, not rooted but heavily optimized.
Click to expand...
Click to collapse
exynos is running hot, there is not mutch you can do.
Here is one example
https://m.youtube.com/watch?v=LfZUNL5hyVw
If you pause the video when he start antutu you can se the cpu temp of the s20 ultra (about 56c without any massive load).
My old s8 with exynos got warm and it worked just fine for 2 years, sure i lost a few % on the batteri.
After 2 years just get a new batteri and enjoy.
I know snappdragon is running mutch cooler, but make sure you get a app that show the right temp. 35c in a 26.6C room sounds like idle temp at best.
robalm said:
Good thing you don't have the Exynos version.
The idle cpu temp is around 50c with about 20-25c room temp.
What program to you monitor cpu and chips with?
Click to expand...
Click to collapse
robalm said:
exynos is running hot, there is not mutch you can do.
Here is one example
https://m.youtube.com/watch?v=LfZUNL5hyVw
If you pause the video when he start antutu you can se the cpu temp of the s20 ultra (about 56c without any massive load).
My old s8 with exynos got warm and it worked just fine for 2 years, sure i lost a few % on the batteri.
So after 2 years just get a new batteri and enjoy.
Click to expand...
Click to collapse
Meh... I'm liking my Snapdragon a little more.
Samsung design engineers are like a box of rabid gerbils...
[email protected] said:
122 F is really hot for a cell phone... a very expensive hand warmer. When a phone feels hot; it's already too hot. This will greatly shorten LI life especially if above a 90% charge.
Current drain* at idle with 50% brightness level should be below 220 ma. Typical idle current on this one averages at 140-200 ma.
If it's running >400 ma, something's running in the background sucking the life out of it.
I use different temp apps. Been playing with the Gitlab one.
It's 26.6C (80 F) ambient temp here and the CPU is averaging about 35.5 C (96 F) as I'm using the Note.
Battery temp is the only one I need to really watch.
I monitor that and battery current drain.
*AT&T variat, not rooted but heavily optimized.
Click to expand...
Click to collapse
[email protected] said:
Meh... I'm liking my Snapdragon a little more.
Samsung design engineers are like a box of rabid gerbils...
Click to expand...
Click to collapse
Snappdragon 855 is great.
[email protected] said:
The Fahrenheit scale is centered around the temperature zone most used by humans.
A 10° F isn't too much a of a change but modest amount.
A 10° C change is huge.
It's ackward to use in real life... suffer.
Click to expand...
Click to collapse
For you Fahrenheit may sound "logical" as you grew up with it. For us - the rest of the world - we grew up with Celsius. We don't need a scale "centered around a temp zone used by humans", we know what effect a 10°C drop in temperature has on us...nothing ackward about it.
Yes well...
cfds said:
For you Fahrenheit may sound "logical" as you grew up with it. For us - the rest of the world - we grew up with Celsius. We don't need a scale "centered around a temp zone used by humans", we know what effect a 10°C drop in temperature has on us...nothing ackward about it.
Click to expand...
Click to collapse
The west is the best.
Get here and we'll do the rest JM
I rest my case...
blackhawk said:
The west is the best.
Get here and we'll do the rest JM
I rest my case...
Click to expand...
Click to collapse
What do you mean, exactly with"west" ?
There is just one country using that retrograde Farenheit scale, and despite that, scientist there use metric
winol said:
What do you mean, exactly with"west" ?
There is just one country using that retrograde Farenheit scale, and despite that, scientist there use metric
Click to expand...
Click to collapse
Unlike the metric system of temperature measurement it is uniquely centered in a range where most living occurs... 96.8° is a better way to index human body temp. One degree matters.
It's Jim Morrison's quote... America, to find yourself.
winol said:
What do you mean, exactly with"west" ?
There is just one country using that retrograde Farenheit scale, and despite that, scientist there use metric
Click to expand...
Click to collapse
I think we should leave it, his mind is limited to "west" only and he has not learned to see beyond that.
robalm said:
Good thing you don't have the Exynos version.
The idle cpu temp is around 50c with about 20-25c room temp.
What program to you monitor cpu and chips with?
Click to expand...
Click to collapse
Update...
Trying out this temp apk:
https://play.google.com/store/apps/details?id=com.novelmatrix.temperaturemonitor
It will display in the corner of the screen real time. Low resource usage. Some ads on set up but liking it so far.
At 96° ambient I'm seeing the CPU, GPU typically going between 102-118 F depending on usage.
Browsing it's running between 100-102 F
Internet vid jumps to about 114 F at this ambient temp.
Obviously higher for cpu/gpu intense apks, haven't benchmark it yet with this running.
The battery is at 96.8 F and typically runs cooler.
The heat pipe seem to work well; dissipates heat rapidly from the cpu and helps keep the battery temp down.
blackhawk said:
Update...
Trying out this temp apk:
https://play.google.com/store/apps/details?id=com.novelmatrix.temperaturemonitor
It will display in the corner of the screen real time. Low resource usage. Some ads on set up but liking it so far.
At 96° ambient I'm seeing the CPU, GPU typically going between 102-118 F depending on usage.
Browsing it's running between 100-102 F
Internet vid jumps to about 114 F at this ambient temp.
Obviously higher for cpu/gpu intense apks, haven't benchmark it yet with this running.
The battery is at 96.8 F and typically runs cooler.
The heat pipe seem to work well; dissipates heat rapidly from the cpu and helps keep the battery temp down.
Click to expand...
Click to collapse
"Cpu and gpu temp not supported"