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Not sure why but ever since I flashed release 7 of the faux kernel my phone just seemed to get really warm, now I don't know if i just never noticed it but I'm running Motley kernel now and my phone just gets warm at the top when installing apps. I'm not sure if I never noticed it and I'm starting too or if I have a problem, HELP? Thanks.
That's completely normal. When installing asps the CPU is being used. Also, the CPU governor being used and uv'ing affect the temperature. Also, the CPU is located at the top I'm guessing.
Sent from my Nexus 4 using Tapatalk 2
Hey, I'm wondering too ! Since i flashed the latest faux kernel (release 007m) , my phone seems to be warmer than usual. According to the system tuner widget the phone runs around 45°C after a few minutes of use and sometimes reaches almost 60°C while i do nothing special on my phone (a little browsing, sms). Despite the fact that I've downclocked the cpu to 1.35ghz, put the governor on intellidemand, disable mpdecision, UV 75 mV and running at the stock gpu clock. I don't know if this is normal but this seems to be a lot. What's gonna happen if I play games or some more intensive apps?
Hi,i'm new here and sorry for my bad english
I'm on PA 3.1 and since PA's base upgraded from 4.2.1 to 4.2.2,my nexus 7's bottom left corner got warm and hot than normal,CPU temperature is usually at 36-37 °C,even when i just browsing/reading
I just want to know if anyone here got the same issue as i got
Thank you and sorry again for my bad grammar
I did the same jump as you from PA 4.2.1 to 4.2.2. I haven't had any heat issues at all. Mind you I have undervolted 50v across the board. It might be a rogue app.
Sent from my Nexus 7 using xda premium
androidkid311 said:
I did the same jump as you from PA 4.2.1 to 4.2.2. I haven't had any heat issues at all. Mind you I have undervolted 50v across the board. It might be a rogue app.
Sent from my Nexus 7 using xda premium
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what kernel do you use?
37-38 C is nowhere near to being high (if you are indeed talking about the processor Tj)
The stock kernel does a panic shutdown at 100 C, and rate throttles a little below that. (At the moment I can't remember if that happens at 95C or 90C).
That Tj temperature is measured by a circuit embedded in the face of the SoC chip itself, so it is literally the hottest place in the whole device.
I have run native multithreaded stress test codes simulaneously with OpenGL benchmarks, and while the lower left corner of the tablet gets warm, the maximum Tj I observed was about 85C (Stock kernel - no GPU or CPU OC'ing). When "idle" such as reading web pages, my stock device sits around 38C as well.
The only thing that is disconcerting about what you report is that you mention a warm tablet in conjunction with 38C. That shouldn't be the case unless you made the temperature measurement substantially later that the CPU/GPU load which created the temperature spike.
Remember that there is a substantial delay between a peak temperature felt through the case and when the CPU goes up to high temperature. In my experience, it takes several minutes of maxing out the processor(s) before you start to to notice that "lower left corner" hot spot. So if you are observing that behavior regularly, you do have a reason to be concerned.
good luck
bftb0 said:
37-38 C is nowhere near to being high (if you are indeed talking about the processor Tj)
The stock kernel does a panic shutdown at 100 C, and rate throttles a little below that. (At the moment I can't remember if that happens at 95C or 90C).
That Tj temperature is measured by a circuit embedded in the face of the SoC chip itself, so it is literally the hottest place in the whole device.
I have run native multithreaded stress test codes simulaneously with OpenGL benchmarks, and while the lower left corner of the tablet gets warm, the maximum Tj I observed was about 85C (Stock kernel - no GPU or CPU OC'ing). When "idle" such as reading web pages, my stock device sits around 38C as well.
The only thing that is disconcerting about what you report is that you mention a warm tablet in conjunction with 38C. That shouldn't be the case unless you made the temperature measurement substantially later that the CPU/GPU load which created the temperature spike.
Remember that there is a substantial delay between a peak temperature felt through the case and when the CPU goes up to high temperature. In my experience, it takes several minutes of maxing out the processor(s) before you start to to notice that "lower left corner" hot spot. So if you are observing that behavior regularly, you do have a reason to be concerned.
good luck
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I'm sorry,its 60C,not 36
I have mistake CPU temperature with battery temperature
dangnhap01 said:
I'm sorry,its 60C,not 36
I have mistake CPU temperature with battery temperature
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Understood. I should have said "cat /sys/kernel/debug/tegra_thermal/temp_tj" to be clear.
60 C does seem a bit high for a N7 which is supposed to be doing very little work.
Mine (stock jdq39) is sitting here doing nothing but with the screen on (plugged into USB), not charging and it is about 42-43 C.
The effects of heat are cumulative - you should look into it.
So am running classic stability test 2.7, and I've ran this before and my CPU get to 60°C or after like 15 minutes, I ran it today out of sheer curiosity and it started to show 91°C. Am using cm with there kernel since I recently flashed the latest nightly and thought how would it differ from matrixes. Another thing it can be that the values are being incorrectly displayed. Is this something I should worry about? Am really not in the mood for an RMA and losing my phone. Shouldnt of the system shut itself down after a certain limit as a fail safe?
m4r0v3r said:
So am running classic stability test 2.7, and I've ran this before and my CPU get to 60°C or after like 15 minutes, I ran it today out of sheer curiosity and it started to show 91°C. Am using cm with there kernel since I recently flashed the latest nightly and thought how would it differ from matrixes. Another thing it can be that the values are being incorrectly displayed. Is this something I should worry about? Am really not in the mood for an RMA and losing my phone. Shouldnt of the system shut itself down after a certain limit as a fail safe?
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Are you sure it is Celsius and not Fahrenheit? Is about 33 degrees Celsius. At 91 degrees it would have shut down and rebooted a long time before reaching that temperature.
Trickster mod says its °C so?
edit: the device itself gets very very hot which am sure if it was running at 30 it would be fairly cool would it not?
m4r0v3r said:
So am running classic stability test 2.7, and I've ran this before and my CPU get to 60°C or after like 15 minutes, I ran it today out of sheer curiosity and it started to show 91°C. Am using cm with there kernel since I recently flashed the latest nightly and thought how would it differ from matrixes. Another thing it can be that the values are being incorrectly displayed. Is this something I should worry about? Am really not in the mood for an RMA and losing my phone. Shouldnt of the system shut itself down after a certain limit as a fail safe?
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Click to collapse
- touch the back, if it's 91C your fingers will know.
- RMA because you run a heavy benchmark test (I never do, no opinion on that) and it -logically- heated up..?
Vangelis13 said:
- touch the back, if it's 91C your fingers will know.
- RMA because you run a heavy benchmark test (I never do, no opinion on that) and it -logically- heated up..?
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it was very hot I had to put it down so am guessing its 90C, but now its a lot better, it seems it wasn't throttling proper? it attempted to run the entire thing at 1.5ghz constantly, rather than it's usually clocking down to 1.1ghz. Now it's throttling and while its at 78C, it just feels warm and it actually being managed.
I flashed back to matrix's kernel and prefed to use the scaling test which would probably be closer to real life usage and its running 45C. I really like CM and don't want to flash back to stock but I may end up doing it
Note to self
Don't run stability tests
Sent from my Nexus 4
90c will probobly burn your skin.
it was mistake.
Must be a mistake. 91 degrees Celsius is almost 200 Degrees Fahrenheit, that would melt the plastic on the phone, and burn your fingers.
ScumDroid said:
Must be a mistake. 91 degrees Celsius is almost 200 Degrees Fahrenheit, that would melt the plastic on the phone, and burn your fingers.
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not true. ive forced mine to hit 100C. its the cpu temp, not the temp of the outside of your phone. ive even hit 110C with my galaxy nexus. it doesnt stay at those temps long enough to melt your phone, lol.
---------- Post added at 03:07 PM ---------- Previous post was at 03:04 PM ----------
m4r0v3r said:
So am running classic stability test 2.7, and I've ran this before and my CPU get to 60°C or after like 15 minutes, I ran it today out of sheer curiosity and it started to show 91°C. Am using cm with there kernel since I recently flashed the latest nightly and thought how would it differ from matrixes. Another thing it can be that the values are being incorrectly displayed. Is this something I should worry about? Am really not in the mood for an RMA and losing my phone. Shouldnt of the system shut itself down after a certain limit as a fail safe?
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Click to collapse
stability tests are meant to push your cpu to its limits. pushing the cpu to its limits will create lots of heat. it is meant to do that. if youre using stability tests, you can not complain about heat. its like putting your car in neutral then flooring the gas pedal, itll cause your engine to get hot, especially if you do it for 15 minutes.
simms22 said:
not true. ive forced mine to hit 100C. its the cpu temp, not the temp of the outside of your phone. ive even hit 110C with my galaxy nexus. it doesnt stay at those temps long enough to melt your phone, lol.
---------- Post added at 03:07 PM ---------- Previous post was at 03:04 PM ----------
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ahh k my bad, I didnt realize it was internal temp. Thats crazy you hit 110 c the most ive ever seen mine hit is 40 c
ScumDroid said:
[/COLOR]
ahh k my bad, I didnt realize it was internal temp. Thats crazy you hit 110 c the most ive ever seen mine hit is 40 c
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safety cpu shutdown for the gnex is 110C. as soon as i saw it hit 110C, it shut down. but you really have to try to get it to that point by stressing it awfully hard. same with the nexus 4, 100C is the safety shutdown. running certain benchmarks or stress tests are the only ways to get it that hot. which is why it makes no sense that someone running a stress test for 15 minutes is complaining about heat, asking if he should rma his device.
ScumDroid said:
[/COLOR]
ahh k my bad, I didnt realize it was internal temp. Thats crazy you hit 110 c the most ive ever seen mine hit is 40 c
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I think you are referring to battery temp and not CPU temp. Unless you live somewhere very cold it would be quite difficult for your CPU not to go over 40c
Sent from my Nexus 4 using xda app-developers app
Alex240188 said:
I think you are referring to battery temp and not CPU temp. Unless you live somewhere very cold it would be quite difficult for your CPU not to go over 40c
Sent from my Nexus 4 using xda app-developers app
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Canada its fkin freezing!! just checked set cpu and its 23 c, but im just scrolling through twitter, not really doing anything else.
The points that I would be concerned with temps are
Battery > 50°C
CPU > 80°C
This is based on stock thermal throttle at 60°C CPU
On Franco kernel I have upped my throttle limit to 70°C so I wouldn't be concerned unless it went above 85.
You will know if your battery is at a dangerous temperature because it will be very uncomfortable to hold
I just played some beach buggy blitz for 10 mins.
CPU jumped up 20° from idle up to 50° but again well within my tolerance
Sent from my Nexus 4 using xda app-developers app
My nexus 4 cpu temperature stays at 40°C or more and reaches 60°C when playing GTA for instance. Should i be worried? BTW im running faux kernel with intellidemand and eco mode
Nexuzx said:
My nexus 4 cpu temperature stays at 40°C or more and reaches 60°C when playing GTA for instance. Should i be worried? BTW im running faux kernel with intellidemand and eco mode
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no.
for the record am not asking if I can RMA, am happy with my device and really don't need to lose it for a week. But this just started happening more frequently. Sometimes the thermald ****s up and it doesn't throttle at all, at times I could be just playing GTA, Worms, Plague etc I usually don't notice because the phones down on the table, pick it up and owwwww flashing back to matrix solved the majority of it tbh. Right now it's sitting on 31C idle, it'll be about 40-50C on chrome funnily enough, and then 60ishC on games, pushing 70 depending how long I leave it on. I see that as fairly normal tbh, but 90C? I wouldn't even trust my fan cooled i5 to go there.
And am back were I started just playing 2 minutes of batman and its at 70°C and burning my hand
wow 91° ?? its dangerous maybe your device will " BOOM" sometimes :0
[FONT="Arial ="5"]
• Sony Live with Walkman
m4r0v3r said:
no.
for the record am not asking if I can RMA, am happy with my device and really don't need to lose it for a week. But this just started happening more frequently. Sometimes the thermald ****s up and it doesn't throttle at all, at times I could be just playing GTA, Worms, Plague etc I usually don't notice because the phones down on the table, pick it up and owwwww flashing back to matrix solved the majority of it tbh. Right now it's sitting on 31C idle, it'll be about 40-50C on chrome funnily enough, and then 60ishC on games, pushing 70 depending how long I leave it on. I see that as fairly normal tbh, but 90C? I wouldn't even trust my fan cooled i5 to go there.
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cool.
but yea, its possible to reach those high temps if, and only if, pushing your cpu. itll get warmer faster if your gpu is overclocked(is gpu overclocked in franco kernel?). now, if doing nothing and the phone gets that hot, thats a problem(software or hardware).
nah its not overclocked, atm its cooled down, although it does take a while to drop from a high temp to something low even on idle.
hi.
did someone else experience extreme over-heating while browsing?
Today I was browsing for a few minutes using Chrome. The phone was lying on the table and I wasn't holding it in my hand. At one point I have noticed that the screen glass is very hot. I checked the temperature and found out it was 60 degrees Celsius ! (about 140 Fahrenheit).
Is that normal?
I also have an undervolt ( -125 mV).
romitkin said:
hi.
did someone else experience extreme over-heating while browsing?
Today I was browsing for a few minutes using Chrome. The phone was lying on the table and I wasn't holding it in my hand. At one point I have noticed that the screen glass is very hot. I checked the temperature and found out it was 60 degrees Celsius ! (about 140 Fahrenheit).
Is that normal?
I also have an undervolt ( -125 mV).
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Click to collapse
60C is a normal temperature for the cpu, not even close to overheating. is your phone in a case?
romitkin said:
hi.
did someone else experience extreme over-heating while browsing?
Today I was browsing for a few minutes using Chrome. The phone was lying on the table and I wasn't holding it in my hand. At one point I have noticed that the screen glass is very hot. I checked the temperature and found out it was 60 degrees Celsius ! (about 140 Fahrenheit).
Is that normal?
I also have an undervolt ( -125 mV).
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Click to collapse
well..i'd experienced that kind of increasing temperature,but limit was 45 c only,otherwise,i'm using 3g network,with wifi,no such increase in temperature
I experienced same problem today (went on family roadtrip so I was using 3G for browsing otherwise i use WiFi). I use PA 3.15 26April and Franco kernel r134. With -100 mV undervolt and high frequency 1188Mhz. Phone became realy hot I would say around 50°C (back glass) but heat didnt come from CPU but from right and a bit up from CPU.
Xmaster8 said:
I experienced same problem today (went on family roadtrip so I was using 3G for browsing otherwise i use WiFi). I use PA 3.15 26April and Franco kernel r134. With -100 mV undervolt and high frequency 1188Mhz. Phone became realy hot I would say around 50°C (back glass) but heat didnt come from CPU but from right and a bit up from CPU.
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its either from the cpu or battery. if the heat was close to the camera(up), then its cpu. if its cpu, then its way below overheating.
My s4's cpu on system tweak reaches between 46 and 50 degrees just by doing soft stuff like browsing the internet, Facebook and tapatalk.
Is this normal or do I have a deffective unit?
alundra212 said:
My s4's cpu on system tweak reaches between 46 and 50 degrees just by doing soft stuff like browsing the internet, Facebook and tapatalk.
Is this normal or do I have a deffective unit?
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What kernel are you using?
See in performance which is the lowest cpu speed.
Sent from my ASUS Transformer Pad TF700T using Tapatalk 4 Beta
soyusado said:
What kernel are you using?
See in performance which is the lowest cpu speed.
Sent from my ASUS Transformer Pad TF700T using Tapatalk 4 Beta
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Iam just using omega rom v9 with stock kernel
Yes it's normal, underclocking does help but by and large that's the cost of owning a phone with as much speed as the snapdragon 600 possesses.
-- Sent from the mighty Note 2 --
Unfortunately sometimes its not very confortable to hold it against the ear now in the summer nor to hold it
I think it might be the kernel because I also was getting the same temperature, the screen almost untouchable, but with PACman stock kernel.
Now I've changed to KT kernel and my phone is much cooler.
I think it might be the kernel because I also was getting the same temperature, the screen almost untouchable, but with PACman stock kernel. <br />
Now I've changed to KT kernel and my phone is much cooler.
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Can you tell me where can i get that kernel and how can I install it please?
Ive never ran anything besides stock kernel on my phones but this heat os getting unbearable so i might just bite the bullet.
Im using faux's m kernal. My cpu barely hit 40c in normal usage. Gaming is another story.
Sent from my GT-I9505 using Tapatalk 2
alundra212 said:
My s4's cpu on system tweak reaches between 46 and 50 degrees just by doing soft stuff like browsing the internet, Facebook and tapatalk.
Is this normal or do I have a deffective unit?
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Think to this very "simple" explanation
the thinner the device is the closer you are from the heat source that are the chips.
All the chips reach when in full use some 90°C. The same for a single 1Ghz single core packed in a 1cm thick phone case where your fingers stay distant from the heat.
I agree that some kernel may manage heating in some way because a better task managment.