Database Users

How hot is too hot?

How hot does your phones get while gaming? I've been playing pocket legends on mdj froyo matted and have gotten up to 107 degrees Fahrenheit. I'm not to sure about batteries but I'm pretty sure that can't be good for it. I'm running mdj s6.1 with set CPU set on smartass and 998,mhz.

If it feels hot, it is too hot imo.
I'd rather stop playing my game for a few minutes than fry my phone forever.
Just look at all the 'My Phone Got Hot and Now It Won't Boot' threads
Sometimes, especially in Android, cpu usage will spike to 100%, if left like this, it can fry your cpu
It seems the processor in the HD2 is pretty heat sensitive compared to some other devices
I don't overclock, in fact I find that my phone runs fine slightly underclocked, and it also saves battery life.
If your battery is already hot, and you get a cpu usage spike, could possibly spell disaster
Couldn't tell an exact temp that's too hot, but I would say absolutely err on the side of caution.

ive got upto 47.3C(117F) on pocket legends , runnin at 1.2ghz , didnt give a damn tho

I have a SetCPU profile to throttle the CPU once it hits 40c... I've never had it throttle yet !

FerretAD said:
I have a SetCPU profile to throttle the CPU once it hits 40c... I've never had it throttle yet !
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Have you tried this will playing any 3D, power intensive games?

genesis123 said:
Have you tried this will playing any 3D, power intensive games?
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Only played 'Gem Miner', but thats not exactly intensive.
Would 'Angry Birds' constitute as intensive, or shall I try something else ?

ive noticed u get about a +5C "bonus" under load when ur on a charger , must be cuz of the pwm circuits have alot of extra work to do

FerretAD said:
Only played 'Gem Miner', but thats not exactly intensive.
Would 'Angry Birds' constitute as intensive, or shall I try something else ?
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No, I don't think so. I never get that kind of heat when playing angry birds. I think it has to be something 3D to cause that much processor consumption.

is it safe to do that ???

i was having a problem when playing hd games .... the device got very hot and the battery temp reaches about 45
finally i solved this problem using tegrak to set cpu speed to 200 min : 800 max
no heat any more
but i need to ask is it safe to change it in games only and return it normal (1200 mhz) all times and return it back to 800 when playing games ??

Shouldn't be a problem doing that, the game might Not be as smooth or whatever though. 45 is not too high by the way, it's just scary because you can actually feel the heat on this phone more than others...

666fff said:
Shouldn't be a problem doing that, the game might Not be as smooth or whatever though. 45 is not too high by the way, it's just scary because you can actually feel the heat on this phone more than others...
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but it is a great feelings that ur phone is still cool after one hour of playing
and the game still smooth as usual no any difference
and now i m running stability test it reached 46 minutes and nothing wrong
but my Q is if i returned it to normal after gaming and return it again to 800 when playing games is there any problem or what ..... i just notice very slight difference in loading but not in performing so i dont want this difference in loading i want to use the full power of the device without heat

Jeez pal, you underclocked the CPU because temp was 45°C! What was the problem if it were 50/52 or even 55°C? Playing game is a CPU intensive task, so the phone will be hot than any other things (benchmarking included) and that is very NORMAL.
Regards.

ithehappy said:
Jeez pal, you underclocked the CPU because temp was 45°C! What was the problem if it were 50/52 or even 55°C? Playing game is a CPU intensive task, so the phone will be hot than any other things (benchmarking included) and that is very NORMAL.
Regards.
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i knwo it is normal but it is very annoying
the battery temp is 45 and may be more "48 or even 50 " and the processor temp is more for sure and the phone is very hot as it is very thin and i know it is normal but it is annoying to me and to others so i think this is a slotion for this problem
but my Q is if i returned it to normal after gaming and return it again to 800 when playing games is there any problem or what

xdafun4all said:
i was having a problem when playing hd games .... the device got very hot and the battery temp reaches about 45
finally i solved this problem using tegrak to set cpu speed to 200 min : 800 max
no heat any more
but i need to ask is it safe to change it in games only and return it normal (1200 mhz) all times and return it back to 800 when playing games ??
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Click to collapse
i do exactly the same, no problems so far.

rocketpaul said:
i do exactly the same, no problems so far.
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thx bro but do u mean u underlock when playing and return it back when finished gaming ??? or underlock all the time

Only for 3d games

rocketpaul said:
Only for 3d games
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thxxxxxxxxxx

By the way guys if u have KH3 stock rom then u have the option to under clock ur device by default
Haha very nice & neat option to save battery life & cool down the handset.
It cap the cpu on 800 mhz, I addition to under clicking the gpu as well (which kernels don't do)
Sent from my super fast GT-I9100 using Tapatalk

drreality said:
By the way guys if u have KH3 stock rom then u have the option to under clock ur device by default
Haha very nice & neat option to save battery life & cool down the handset.
It cap the cpu on 800 mhz, I addition to under clicking the gpu as well (which kernels don't do)
Sent from my super fast GT-I9100 using Tapatalk
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u do this all the time "800 mhz" or when gaming only ?? as i prefer to leave it 1200 mhz all the time and only while games and intensive use as gps underclock to 800 te decrease heat and battery use
but need 1200 mhz performance in normal processing to perform faster

xdafun4all said:
u do this all the time "800 mhz" or when gaming only ?? as i prefer to leave it 1200 mhz all the time and only while games and intensive use as gps underclock to 800 te decrease heat and battery use
but need 1200 mhz performance in normal processing to perform faster
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I only untick this box when I fancy:
1- rapidly discharging (battery calibration thing)
2- Showing off the amazing speed of this wonderful device
Otherwise 800 would do every other simple task like ( calling, email, games, browsing...etc)

drreality said:
I only untick this box when I fancy:
1- rapidly discharging (battery calibration thing)
2- Showing off the amazing speed of this wonderful device
Otherwise 800 would do every other simple task like ( calling, email, games, browsing...etc)
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thats really great the phone now is fast and coool thats very fine and so now i can be satisfied perfectly with the phone

That option does halve the GPU/graphics frame rate from 60 to 30 though, which may not be what you want in a graphics based game.
Sent from my GT-I9100 using XDA App

no harm in lowering the clock speed, the game just won't run as smoothly. the temps of this phone do feel alarmingly high due to the (lack of) thickness.
if it runs fine at 800mhz thats good. undervolt it too and enjoy gaming just that little bit longer

tonymy01 said:
That option does halve the GPU/graphics frame rate from 60 to 30 though, which may not be what you want in a graphics based game.
Sent from my GT-I9100 using XDA App
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thats not really
if u tried to put it on max 800 mhz and tried benchmark u will find that the frame rate that are shown on the corner of screen during benchmark test reaches 60 and more than 60 and the lowest number shown was 50 or 48 and the total score is about 2700
if u remember the galaxy 1 or hts dhd never reached this score only if overlocked and these devices was playing games well with single core processors 1 ghz
so a dual core with 800 mhz with a 4 cores in gpu ....... powerfull result

xdafun4all said:
thats not really
if u tried to put it on max 800 mhz and tried benchmark u will find that the frame rate that are shown on the corner of screen during benchmark test reach 60
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I am not talking about setCPU here, I am talking about that Samsung "System power save" mode that KH3 has as an option. It definitely halves the gpu rate.
Running quadrant with that option off sees 60 frames/sec, running it with that option enabled sees only 30 frames/sec and if you look at the help/tips for that option you can see what it does (well, they don't give much away about what it does mind u).

Geez....
I have a car that does 150MPH. Is it safe to do only 60MPH?
It does get less hot and uses less power.
DUH

[Q] Nexus 4 GPU Frame Rates Drops

Hello Guys, i registered to XDA developers to ask this question so please reply. i heard many say GPU of Nexus 4 is very bad because after 20 mins of gameplay the phone gets heated and the GPU performance is Dramatically Reduced to cooldown. I am going to buy Nexus 4 thats y im asking, i didnt hear this from my neighbours..., i saw someone say this in youtube comments. Anyone Experiencing this Issue? or its a defective product?.

This is a good thread to read about Thermal Throttling: http://forum.xda-developers.com/showthread.php?t=2144652
I am not sure about the GPU actually reducing it's power when the nexus is getting hot. I know the CPU will clock lower when it has reached 70 degrees so it can cool down. Most kernel's have the ability to up this to about 100 degrees so you won't have the thermal throttling as fast. You are also able to remove the throttling completely with a commando.
I've played alot of Dungeon Hunter 4/GTA Vice City/Real Racing 3 and I have never experienced severe FPS drops because of it getting hotter. The only thing you will experience is a battery that will be empty within 2 hours.
PS: This is based on what i've read on the forums, I do not have my nexus 4 for that long and I am not a developer, someone might be able to give you more accurate information.

The thermald.conf sets the battery threshold to about 40-41C before it begins to underclock aggressively (hence why it feels sluggish). I forget the exact number. It starts reading "Overheating" status when it reaches about 46C. Max rated temperature for the battery is 60C.
At that battery temperature ~41C, the CPU is no more than about 50C, so it's not the CPU overheating.
If you feel so inclined, you can modify the thermald.conf with root to modify how aggressive the thermal throttling acts, within reason. Otherwise you'll cook your phone.

desynch- said:
The thermald.conf sets the battery threshold to about 40-41C before it begins to underclock aggressively (hence why it feels sluggish). I forget the exact number.
At that temperature, the CPU is no more than about 50C.
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or you can run a custom kernel(like trinity) that disables the battery thermal throttle and not worry about it.

simms22 said:
or you can run a custom kernel(like trinity) that disables the battery thermal throttle and not worry about it.
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YMMV with that. My nominal binned SoC overheats really easily. With the way I use my phone, it'd be overheating way too often.
I modified my thermald.conf so it's less aggressive. It's not that hard to figure out.

The phone throttles its clock speed like a PC. It's not a big deal.

I9500 Octacore is this normal ? temps 65-70 and throttling... don't know

Hi i've just got my new S4 I9500 octacore from my carrier here in my country argentina, it came loaded with default stock firmware, but I need to know if these temps are normal.
I'm posting a youtube video so you can see what's going on... Are these temps normal, first of all
- Demand mode with throttling up to 1600 ghz ,CPU temp rises to around 75-80 C while playing modern combat 4
- Demand mode limiting max cpu to 1000 ghz CPU temp goes around 60C
So I've seen some videos of guys doing a performance test, while gaming and they checked with system tuner CPU temp and had after 5 minutes of gaming with Modern combat around 52C and with throttling mode I believe with max CPU speed to 1.6hhz so is my phone defective?
We all know there's no thermal compound or discipation on these cpu's like on notebooks.
Tomorrow I'm going to ask for another phone and see if I get the same temps, if not what do I have left flash a custom rom ? undervolt ?
I've seen some people checking the temp of the phone but only having as a referecne the external thermistor which is not an accurate way of measuring temp.
Basically I don't want to end up with a brick, as you know high temps on this Lead free solder BGA's, start to make solder joints brittle and crack. Then you come up with wifi not working, because the BGA chips's actually desoldered.
I couldn't place the link cause I'm not allowed to paste as a first time user, sorry
This is the youtube video link youtube.com/watch?v=f-tYmOgOQ34

The Exynos5 OCTA CPU can get even much higher (90C) so it's pretty normal.
About the other Videos, are you sure that what you saw was the CPU temps and not just the overall device temperature?

These are normal temperatures, you're reading the on-core sensors. Most apps and users don't know about them.

noideaforusername said:
The Exynos5 OCTA CPU can get even much higher (90C) so it's pretty normal.
About the other Videos, are you sure that what you saw was the CPU temps and not just the overall device temperature?
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Yup I'm pretty sure it was the CPU core temp what I saw , let me show you the link from the guy who did the performance test check it here
he was using system tuner. Here this guy shows about 52 C after playing modern combat 4. Why on earth am I getting like 75C with on demand throttling ? . If this phone can reach as high as 90C as it's got no heat discipation it's going to die in less than a month. Is there any way to undervolt with the stock rom from my carrier without using a custom kernel ?
youtube.com/watch?v=Cg7VKs1EMww << check this link guy showint 52 C after gaming MC 4

Because that's not the CPU temperature he's reading, that's the temperature measured by the charger chip.

AndreiLux said:
Because that's not the CPU temperature he's reading, that's the temperature measured by the charger chip.
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No it's not that's the CPU core die temp , I can tell you for sure cause it's the thermal sensor within /sys/class/thermal/thermal_zone0/curr_temp I opened both system tuner and cool tool to verify it

AndreiLux said:
Because that's not the CPU temperature he's reading, that's the temperature measured by the charger chip.
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Listen to AnderiLux, he knows this device better than anyone else here.

noideaforusername said:
Listen to AnderiLux, he knows this device better than anyone else here.
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He's saying it's mostly the sensor on the battery charger, but I could veriiy it's the on die cpu temperature.. the external temperature he says it's the external thermistor and it's not the one I'm using , not even the one from the guy on the video.

dssence said:
He's saying it's mostly the sensor on the battery charger, but I could veriiy it's the on die cpu temperature.. the external temperature he says it's the external thermistor and it's not the one I'm using , not even the one from the guy on the video.
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You're right, System Tuner seems to read them out correctly (he updated the app). But it still doesn't matter. The temperature drop from 75°C to 50 range within a fraction of a second, that's video is still worthless since he still didn't have it running in the background.
These are normal CPU running temperatures.

AndreiLux said:
These are normal temperatures, you're reading the on-core sensors. Most apps and users don't know about them.
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You have an I9500 as well? what temps are you having while gaming .. talking obviously about CPU core temp , not the external temp diode which gets the battery temp, being useless.

Hi , same temp on my i9500 I thought it was my phone defective but no
its normal
cheers:good:

dalle3 said:
Hi , same temp on my i9500 I thought it was my phone defective but no
its normal
cheers:good:
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Wowww ! holy jeez really? Can you post more details , take some screenshots. Are you running custom rom or stock rom from your carrier?
What temps are you getting while gaming ?
When did you buy the phone
cheers~!

I think its normal
My Note 2 CPU temp gets around 75- 80c ( but i think the device from outside feels like 40-45c ) after 5 - 6 minutes of running the CPU on full load in cold room but as AndreiLux said the temp goes to around 50c in eye blink
and don't forget Exynos 5410 is way more powerful than 4412 :good:

Andrei I didn't know you were in charge of developing Perseus Kernel for the S4. Would it be good if I change the kernel to yours, I was thinking in undervolting it to improve the temps. Have you tried undervolting it ? and know which are stable voltages for both Little and Big arm ?.
On the other hand , can you guide me abit on flashing, I got my carrier stock rom now and I don't want to screw it up or brick it. It's not unlocked. So can you guide me out how to flash say the best custom rom ? ( is it wanama ) and how to flash your kernel perseus ? do I need to download the rom separately and kernel aside ?.

I have been using TempMonitor app with great accuracy, it includes temperature in the status bar and you can easy check the actual CPU temp.
My temp readings is about 38C to 55C depends, Skype goes higher temp up to 58C
I9500UBUBMF3

Nothing much to say,
only bad luck the unit is defective temp jumps from 35-80c, usb works only first 10min after you power on the device ,i live in Vienna warranty is not worth anything here because
phone is purchased from world wide distributors California US(EU warranty, and US warranty not the same thing).
Phone act same with official rom and with custom rom (temps and usb fault)
for charging i use wireless charging kit ,the usb connector is not broken or defective in any way ,
Cheers

dalle3 said:
Nothing much to say,
only bad luck the unit is defective temp jumps from 35-80c, usb works only first 10min after you power on the device ,i live in Vienna warranty is not worth anything here because
phone is purchased from world wide distributors California US(EU warranty, and US warranty not the same thing).
Phone act same with official rom and with custom rom (temps and usb fault)
for charging i use wireless charging kit ,the usb connector is not broken or defective in any way ,
Cheers
Click to expand...
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So you say the unit is defective yours? it jumps from 35 to 80 C in what kind of tests? can you detail me a little bit more. Mine jumped to 80C while doing heavy stress tests like gaming on modern combat 4 if I left the unit to throttle doing the governor scheduling of the cpu from 250mhz to 1.6mhz.
I need you to install a couple apps, Cool Tool so you can see in real time the temperature , go to labels , choose custom label --> advanced tuning --> custom label choose prefix and write CPU TEMP , select postfix and write @ C. Then go to advanced and under Custom Label Path write down /sys/class/thermal/thermal_zone0/curr_temp that way you'll have a status on top showing the cpu temp.
If you can please install it so you can see how the cpu frequency it's jumping from a low state while doing any task I'll be grateful

Hi, installed cool tool same temp values as in temp monitor , i did a screen record with some simple tasks so You can see how phone act , uploading rar now on zippyshare.
Sorry for the late reply but I was at work
http://www22.zippyshare.com/v/51117352/file.html

Heat issues

Hello onyx users
Recently I experienced extreme heating issues on every ROM I tried(also on OOS).
I can feel the heat trough my OPX case which is very annoying.
CPU-Z displays temperatures around 48-55°C.
When playing Pokemon GO the temperatures are around 70°C(I don't think that's normal).
I tried underclocking to 1.9Ghz but that doesn't changed a thing.
The problem occurs on every ROM and doesn't change with another kernel.
I guess this is a hardware problem ?
Thanks in regards :good:

With Boeffla`s kernel, try to undervolt the CPU. I have also underclock the CPU at 1958 Mhz. I have selected the "Undervolt heavy" profile and now I don`t have heating issues anymore.

I believe you can turn on thermal controls on some kernels. So when a certain temperature is met will throttle back.

aresbv2000 said:
With Boeffla`s kernel, try to undervolt the CPU. I have also underclock the CPU at 1958 Mhz. I have selected the "Undervolt heavy" profile and now I don`t have heating issues anymore.
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I'll try doing that, I'll let you know if the problem is gone or not

Hey man, I have the exact same problem.. it is so bad, sometimes even if I am just surfing internet I experience some heavy heating issue.. please let me know if you find a decent solution. Thanks

Ciro90 said:
Hey man, I have the exact same problem.. it is so bad, sometimes even if I am just surfing internet I experience some heavy heating issue.. please let me know if you find a decent solution. Thanks
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I sending back my phone for repair

My OPX gets quite warm as well too, I have a cputemp app it often reads ranges from 32-60c. I've seen it get UpTo 70 if I'm rebooting it over & over. Avg use is between is about 45c. About 50-55c on heavy use
Sent from my OnePlus using XDA Labs