Hi! I noticed that according to Franco's app my CPU temp is almost always above 40 degrees just after some usage (Facebook,browsing,texting) and only drops to around 28 degrees after being idle. As this is causing throttling I wanted to ask if it was just me or are these normal temperatures?
I am running Franco Kernel r98 with no CPU overclocking or undervolting
Sent from my Galaxy Nexus using XDA
Thanks Can you please tell me how ro set the throttling settings?
Sent from my Galaxy Nexus using XDA
bencozzy said:
On cellular data yes fairly normal.
All the way up to 60c on our CPU can be sustained with out to much harm.
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Agreed. 60c is probably a conservative termal design limit (I'd expect something at a minimum of 80-100c before there was any actual damage to the CPU. Though, that kind of temp would probably damage your HAND or the plastic housing before the silicon. Anyone know why anyone would force throttling at only 40c? Power conservation comes to mind.
bencozzy said:
True power conservation, but now we are making it complete a task at 700mhz for twice as long when it could be done in a flash at 1350 MHz kind of defeats the purpose? That's like hot plugging good in theory but real world says other governors give same battery life and without the instability lagginess.
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I though someone did some real world testing a while back and found that 2x700MHz drew less power than 1x1350MHz?
I've been noticing lately that when I play games for more than 30 minutes on my Gnex. The CPU gets pretty warm about 53 °c and reaches 60 if I continue.
I know this isn't that hot but the problem is when it reaches 50 ° c the pixels in my screen seem to get scrambled.
So I am wondering if this could be due to undervolting ? Maybe my CPU isnt getting enough juice.
Sent from my Galaxy Nexus using xda premium
Simple. Look at your computer. There's probably a heat sink, fan and if it's really powerful/expensive possibly even a water cooling system. CPU's get hot. That's their nature. Combine that with ever powerful phones without any real cooling solution and that's an inevitability.
The display is right "on top" of the cpu so it's only natural that the heat is affecting the display. I'm not excusing it but it seems like something with no solution.
Makes sense, to be safe should I not let it get that hot?
110°c is supposed to be the CPU kill switch. But I doubt this phone can even handle 80°c before it just plain melts.
Sent from my Galaxy Nexus using xda premium
my note 8 get very hot when i play modern combat 4 the temp about 71 degree (measured by system tuner ) and the battery temperture about 37 or more and the left side of the screen becomes very hot and the battery drain quickly is this will harm my device sorry for my bad english ??
messi2050 said:
my note 8 get very hot when i play modern combat 4 the temp about 71 degree (measured by system tuner ) and the battery temperture about 37 or more and the left side of the screen becomes very hot and the battery drain quickly is this will harm my device sorry for my bad english ??
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This might be a question better answered by Samsung (unless it is a carrier model). Many questions though....
Does it get too hot to hold? Are you charging it while playing? Is your tablet oc/ov? What is the ambient temperature where playing?
Here is a previous thread with this same topic: http://forum.xda-developers.com/showthread.php?t=2251830
Might scroll through the posts and maybe even post there about it as well. Sorry, can't help anymore than this.
CCallahan said:
Does it get too hot to hold? Are you charging it while playing? Is your tablet oc/ov? What is the ambient temperature where playing?
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yes some times - never charging while using it - iam running the stock rom witout any modification or oc - the cpu temperture while playing about 71 degreer
71 degreescelcius or Fahrenheit? If Fahrenheit that's good...
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janjannsen99 said:
71 degreescelcius or Fahrenheit? If Fahrenheit that's good...
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71 degreescelcius
Yea.that's.a.little.hot but....
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janjannsen99 said:
Yea.that's.a.little.hot but....
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But ??????????
messi2050 said:
But ??????????
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But its not a problem. Your device will power down or turn down CPUs when you reach a certain temperature threshold. At least I know my phone does. I've never seen temperatures like that on any of my devices. The most I've ever seen even when over clocked to 2.1 GHz is in the 50s. Even then I'm not worried about it damage isn't done until the high 80s 90s. But how are you getting these temps. Are you outside in 90 degree heat gaming? I even have my GPU way over clocked and I never seen 70.
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janjannsen99 said:
But its not a problem. Your device will power down or turn down CPUs when you reach a certain temperature threshold. At least I know my phone does. I've never seen temperatures like that on any of my devices. The most I've ever seen even when over clocked to 2.1 GHz is in the 50s. Even then I'm not worried about it damage isn't done until the high 80s 90s. But how are you getting these temps. Are you outside in 90 degree heat gaming? I even have my GPU way over clocked and I never seen 70.
Sent from my SGH-T889 using Tapatalk 2
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in modern combat 4 it reaches 70 c and the left side of the screen become very hot
Yeah, only problem I had with this device and my Note 2. (same processor). These bad boys heat up. Especially if you do alot of flashing of roms.
Yea I ran my note 2 really hot playing dead trigger last night and overclocked 1.92 ghz plus 733 mhz gpu overclock but I still dont have heat readings of more than 56 celcius. And I have an app that monitors cpu temperature while im playing so I can see it in real time. Maybe your device is having a problem. Oh do you have a real thick case? That can cause heat buildup. If I leave , y case on my note 2 while playing a game it causes less heat dissipation and runs almost 10 degrees warmer. You might wanna consider that
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nickdollahz said:
Yeah, only problem I had with this device and my Note 2. (same processor). These bad boys heat up. Especially if you do alot of flashing of roms.
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snapdragon is the best
janjannsen99 said:
Yea I ran my note 2 really hot playing dead trigger last night and overclocked 1.92 ghz plus 733 mhz gpu overclock but I still dont have heat readings of more than 56 celcius. And I have an app that monitors cpu temperature while im playing so I can see it in real time. Maybe your device is having a problem. Oh do you have a real thick case? That can cause heat buildup. If I leave , y case on my note 2 while playing a game it causes less heat dissipation and runs almost 10 degrees warmer. You might wanna consider that
Sent from my GT-N5110 using Tapatalk 4
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i never used any case for my note but there are some Crackling in the left of the back cover of the device when you click on it you feel it is not a good compound sorry for my bad english
Now i underclocked the cpu to 1 ghz and i dont undervoltage is this will harm my cpu or battery now the max degree while playing 55
messi2050 said:
Now i underclocked the cpu to 1 ghz and i dont undervoltage is this will harm my cpu or battery now the max degree while playing 55
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Why will undervolting harm your CPU or battery? I can see stability issues with undervolting and have experienced them while experimenting with the settings. I cant see how it would harm the hardware though. As someone said above. The device should shut down if the processor gets too hot to protect itself. Also, undervolting should reduce the temperature.
The built in powersaving option in touchwiz will underclock your cpu to 1.1GHz. you can set it back to your standard setting with a push of a single button the menu.
I overclock and undervolt and have no worries about damage. I have had issues with my tablet turning itself off sometimes, but it has only happened on particularly hot days. I reduced my OC from 1.8 to 1.7Ghz. And i reduced my undervolt from -75 to -50 vs stock as I was having the occasional crash.
Are the CPU and GPU on the same processor or located in the same area of the tablet? I hear alot on hear about the CPU temp making the device extremely warm but wondered how the GPU acted. If you underclock the CPU, does this put more load on to the GPU when playing games or will the GPU load be the same regardless.
hertsjoatmon said:
Why will undervolting harm your CPU or battery? I can see stability issues with undervolting and have experienced them while experimenting with the settings. I cant see how it would harm the hardware though. As someone said above. The device should shut down if the processor gets too hot to protect itself. Also, undervolting should reduce the temperature.
The built in powersaving option in touchwiz will underclock your cpu to 1.1GHz. you can set it back to your standard setting with a push of a single button the menu.
I overclock and undervolt and have no worries about damage. I have had issues with my tablet turning itself off sometimes, but it has only happened on particularly hot days. I reduced my OC from 1.8 to 1.7Ghz. And i reduced my undervolt from -75 to -50 vs stock as I was having the occasional crash.
Are the CPU and GPU on the same processor or located in the same area of the tablet? I hear alot on hear about the CPU temp making the device extremely warm but wondered how the GPU acted. If you underclock the CPU, does this put more load on to the GPU when playing games or will the GPU load be the same regardless.
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i cant undervolted because the CivZ-Sb kernel is not working with 4.2.2
Hi all, I bought this phone last week and I think i'm having issues with the temperature.
When I use it like for 10 minutes using instagram, whatsapp and twitter, the temperature goes to 40/42º C (104ºF)
The max temp I had was 45ºC (113ºF) no more than that.
What should I do? It's normal? Should I swap it for another because it's under warranty.
Btw my serial number starts with 510...
And i'm using kdz 20d
Which temperatures? CPU? or the surface of the phone?
Are you in a hot environment?
Mine is currently maxing out at 37 ºC, but here is winter.
On the other hand that is normal for a CPU in use (especially if we are talking about the 808).
davebugyi said:
Which temperatures? CPU? or the surface of the phone?
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The CPU, using the app "CPU temperature"
nach0x said:
The CPU, using the app "CPU temperature"
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I have, 33 now and idle, so having 40-42 while under load is OK.
Edit: just went to 40, after browsing XDA and replying to Hangouts and Whatsapp messages + listening to music.
Moreover, if you google temperatures, you see that is normal. But again it depends what task are handled by the CPU it self. Having not more than 45 is acceptable for the 808. On the other hand if your CPU is under constant load, that may indicate, that some app(s) using your device all the time.
Is there a way to reduce it? My phone slows to the pace of a sloth far too frequently and it seems correlated with temp.
I'm assuming that's the cause because when I look at the CPUs in CPUz the last two go down to 633MHz when things are getting slow. Also seems worse with a case but could be my confirmation bias. This is particularly apparent with the camera, Maps, and when coming out of doze.
Is there a more conclusive way to figure out what is causing my Nexus 5X's occasionally brutal performance?
Sent from my Nexus 5X using Tapatalk
Well, what exactly are you doing with your phone that's causing it to throttle itself? I think with a stock kernel the phone begins to throttle and eventually shut off the Big cluster at 36 or 37 degrees Celsius (someone correct me if I'm wrong). If you flashed a custom kernel, most here have had that limit raised to 46C.
Last weekend I used my phone quite a bit for strenuous tasks including Navigation, Google Maps, lots and lots of pictures and 1080P video. The phone got noticeably warmer, but when I checked my kernel management app, the CPU temperature wasn't even close to the throttle temperature. Unless you're gaming or constantly benchmarking your phone this really shouldn't be a problem. Especially when coming out of Doze. The phone doesn't immediately enter Doze, it waits a while and there are factors that play into its decision to even enter doze in the first place (like laying on a flat surface for X amount of time). So when a phone is exiting Doze because of your input (turning the screen on) the CPU should be quite cool (maybe 22+ degrees). There's no thermal throttling there. The Big cluster shuts off when the screen is off for the sake of battery life, so maybe the lag that you're experiencing stems from the lack of the Big cluster being on for the first second or so when waking the phone back up.
I'll agree that the SD808 isn't a stellar chip; maybe even embarrassing. It's not blisteringly fast, but it certainly isn't slow. There are ways to speed up performance and improve battery life at the same time, which I'm sure you'd appreciate. Unfortunately you have not specified if you're running a custom ROM or kernel, so that's pretty much all the advice and information I can give you right now. But, if you're currently running stock, I'd highly recommend you unlock your bootloader and try out some of the custom (and more lightweight) ROMs that this community has to offer as well as some great kernels. That should make a noticeable difference right off the bat. Then you can dive into the nitty gritty details of tweaking and whatnot if you desire. Check out the links in my signature as a starting point. If you're looking for optimization and speed (like I do) then you'll be impressed.
Thanks for your reply.
I switched to ElementalX about a week ago and it may be a bit better now but it's hard to tell. I've also been using a spigen slim case, maybe that is causing heat to accumulate too.
I don't game. My usage is Maps, Facebook, Snapchat, camera, chrome, hangouts, Spotify, and textra.
I use greenify and amplify as well on xposed. Disabling xposed doesn't seem to make a difference.
Can you confirm that ElementalX throttles at 46C and stock at 36C?
I'm interested in your recommendations. When running geekbench it takes about 9 minutes for things to really slow down.
Sent from my Nexus 5X using Tapatalk
If you search the ElementalX thread you can see that the developer, Flar2, was getting very frustrated with the thermal throttling on this device (others were too, as well). You can read through the progression and, eventually, the decision to apply a "thermal fix" or raise the thermal throttling limit. The threshold is 46C now. Confirmed. The stock thermal throttle threshold is 10 degrees less than that from what I've read. I also remember reading that Franco did a fair amount of research into the throttling issue and found that the CPU was capable of going over 50C with no issues (but aren't recommended), so the limit in place now by the ElementalX kernel is a safe one that shouldn't be exceeded. He probably didn't make it any higher so he wouldn't be found liable by any users if they overheat or damage their phones.
I have no experience with xposed and everytime there's a compatibility issue, hard reboots, etc. it's always because of Xposed. So.. Yeah.
I also do not use any tweaking apps that supposedly save battery or whatever. I let the operating system take care of that. I do use the L-Speed app (again, in my signature) to disable certain things like debug logs and what not to speed things up slightly. Again, I highly recommend trying Ubermallow and Phasma Kernel as those have been my choice, after trying many others, for some time now. Also, I'd look into the interactive governor tweaks after you've settled on a ROM and kernel combination that you like. That's where you can fine tune the way the CPU governor on the phone behaves and can really make a difference in battery life and fluidity of the device.
Lastly, a case can make a difference with cooling but I've never really found it to be an issue. Maybe I'm just not hard on my phone enough.
ryanwalexander said:
Is there a way to reduce it? My phone slows to the pace of a sloth far too frequently and it seems correlated with temp.
I'm assuming that's the cause because when I look at the CPUs in CPUz the last two go down to 633MHz when things are getting slow. Also seems worse with a case but could be my confirmation bias. This is particularly apparent with the camera, Maps, and when coming out of doze.
Is there a more conclusive way to figure out what is causing my Nexus 5X's occasionally brutal performance?
Sent from my Nexus 5X using Tapatalk
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A member on the 6p forum came up with a hard mod that does this with a special thermal paste better then stock . Requires tearing apart the device though ...so its risky but his results looked promising
Sent from my Nexus 6P using XDA Free mobile app
Google just agreed to take back my device so I only have a few days to try things and make my decision on whether to keep the phone or not.
Thank you for your thoughtful responses and suggestions.
Since I started using the phone outside of the case it actually seems much better.
Regarding the extreme slowness coming out of doze, it only occurs when in doze for a long time. Presumably because the phone tries to catch up on all the sync activity that's been paused for the last 12h or so.
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I think I'll try your suggestions and remove greenify, amplify, and xposed to see if things improve. I do agree that the system should be managing those things.
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Yeah, give it a few days. There are many ways to combat the throttling. Got my phone to 41C today while using it out in the sun. The Big cluster is limited to 633MHz at 36C and shut off at 41CC. The 46C built into the kernel is most likely for the LITTLE cluster to start getting throttled. Check the attached pics below.
Thanks. Btw what ROM and app is that?
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ryanwalexander said:
Thanks. Btw what ROM and app is that?
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ROM and Kernel are in my signature. The app for managing the kernel is Elementalx Kernel Manager and the app to add CPU usage overlays and stuff is called Trepn Profiler.
Sounds like the opposite to me, the phone might be slow because of software on the device not playing nice which causes the SoC to work over time (normal computing + rogue app computing) and can cause the device to over heat and throttle.
There's no reason the device should be slow after a period of doze. That tells me the device is having software caused slowdowns that are not related to thermal throttling.
It takes roughly 12 minutes of 100% sustained load (only synthetic benchmarks) to throttle the 2x A57 cluster, and I've never seen the 4x A53 cluster throttle under any conditions including hours of heavy gaming they stay at 1.4Ghz at all times.
bblzd said:
Sounds like the opposite to me, the phone might be slow because of software on the device not playing nice which causes the SoC to work over time (normal computing + rogue app computing) and can cause the device to over heat and throttle.
There's no reason the device should be slow after a period of doze. That tells me the device is having software caused slowdowns that are not related to thermal throttling.
It takes roughly 12 minutes of 100% sustained load (only synthetic benchmarks) to throttle the 2x A57 cluster, and I've never seen the 4x A53 cluster throttle under any conditions including hours of heavy gaming they stay at 1.4Ghz at all times.
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Yesterday I was using GPS to drive and Spotify was streaming. The phone got really hot and unresponsive and Spotify began to stutter. Was unable to even launch textra to text someone.
This of course only started maybe 10m into the drive. The phone is fine while cold.
Maybe I have a defective device but my benchmark stress tests give similar results to other people.
Sent from my Nexus 5X using Tapatalk
ryanwalexander said:
Yesterday I was using GPS to drive and Spotify was streaming. The phone got really hot and unresponsive and Spotify began to stutter. Was unable to even launch textra to text someone.
This of course only started maybe 10m into the drive. The phone is fine while cold.
Maybe I have a defective device but my benchmark stress tests give similar results to other people.
Sent from my Nexus 5X using Tapatalk
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this is consistent with my experience. GPS and spotify (actually almost any app used concurrently with spotify) will cause the phone to have horrible lag.
also, don't text and drive
Interestingly, today when the phone was on battery saver it seemed much faster. Maybe more throttling could help things more than less?
Of course not exactly faster, but more consistent and no unbearable lagging.
Yesterday I flashed the stock firmware files other than user data. Unfortunately I lost root and it seems like I now need to reformat data to get TWRP going again but until then I'm fully stock. Does anyone know a way around that?
I haven't done enough testing to be sure but things seem to be running more smoothly for now than they did with root and ElementalX 1.06. However just writing this i can feel the phone heating up and becoming less responsive. The bottom 2 cores are offline with SoC at 36C and CPU at 56C when I switch to devcheck to check. Other 4 cores at 1440MHz.
ideaman924 said:
I've been having issues with thermal as well. Installed ElementalX along with the governer tweaks GhostPepper profile. When charging (this makes the device really hot) music begins to stutter, coming out of Viper4Android.
When not charging, slow accumulation of heat makes music stutter, same software used. Go figure. Maybe V4A is too demanding on the 808 chip, but I fear if this doesn't cut it, then I'll have to switch phones the next chance I get.
Oddly, this happens when screen is off - the music stutterings. I've thought about Doze and battery saving apps, and have disabled Doze for V4A through the battery optimize pane.
The phone constantly loses battery, around 2~5% an hour, I know thats not too much but my previous phone lost about 1% every three hours. This was a Note 3 Neo by the way. Installing Xposed and Amplify, Greenify and PowerNap should help, but I've had stability issues when using xposed. Maybe later.
Oh, and one last thing. My phone's thermal limit is set to 55 degrees Celsius, but it still feels like it throttles at around 39 or so. Maybe EX Kernel Manager isn't saving the changes, but either way... It throttles too much!
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That could be because of the custom software and CPU tweaks or your V4A installation. Using those settings always has the potential to cause issues and I would troubleshoot there first.
Minimum CPU performance with stock settings is 4x A53 cores at 1.44Ghz which is still fast. If you've ever use one of the more recent Moto G devices you'd know it doesn't stutter playing music when it's cold and neither does this device when it's hot.
Sent from my Nexus 5X using XDA-Developers mobile app
Setting the throttling temp limit to high will decrease performance, see here for details:
http://forum.xda-developers.com/nexus-5x/general/thermal-throttling-temp-performance-test-t3388559
Alcolawl said:
Yeah, give it a few days. There are many ways to combat the throttling. Got my phone to 41C today while using it out in the sun. The Big cluster is limited to 633MHz at 36C and shut off at 41CC. The 46C built into the kernel is most likely for the LITTLE cluster to start getting throttled. Check the attached pics below.
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Is this based on battery temperature or cpu temperature?
leo.best1398 said:
Is this based on battery temperature or cpu temperature?
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CPU temperature but I beleive the phone also has ways of combating high battery temps as well.
Alcolawl said:
CPU temperature but I beleive the phone also has ways of combating high battery temps as well.
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If its cpu temp then no wonder it's always throttling the cpu is nearly always above 40°c.
What do you mean ''combating''?
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