Right now, with the charger in, I'm peaking at 44C. I haven't test off charger, but this temperature seems kinda high for me. I'm running adrynalyne's test 6 voodoo5 kernel.
Rockin' DJ05, Liberty Gingerbread, Clocked at 1.2ghz Voodoo5
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DD username: TheSonicEmerald
why is this in dev forums? shouldn't this be in general discussion?
On another note, there is a temperature sensor in the fascinate that could possibly be used to undervolt/underclock the cpu with the temperature.
But my phone does get quite hot when I am doing mass install/backups.
Might also be because I have it in a rubber case with a cloth inside(for wiping the screen).
Maybe we should be discussing temperatures? I have hit 40C before.
The phone's high temp limit is 60C, so you have a few more degrees to go.
Oh shoot, I was sure I posted this in the General section....could a mod move this please?
Rockin' DJ05, Liberty Gingerbread, Clocked at 1.2ghz Voodoo5
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DD username: TheSonicEmerald
My phone got so hot it almost burned me. But then I got both the phone & battery replaced...
I think you are doing okay at 44
I have had my Fascinate for about two weeks now, and according to SetCPU, the highest temp I have reached is 91F after really heavy usage. Normally it sits at the mid 80's. My Droid 1 OC'd to 1250mhz on the other hand, would average around 90F doing nothing and 115-120F under heavy loads. Aside from being uncomfortable to hold at those temps, it never showed any instability. Even with only having 2.1, and stock kernel, the Fascinate runs circles around my OC'd Droid.
Mine was about 9C last night.
That was clipped to the handlebars of my motorcycle and the temperature outside was about 0C.
I have been playing with different chargers. I had online GPS software running, bright mostly white screen, and a high current charger, and that was getting the temperature up over 45C easily. Turning the display down, going to a dark screen, or using a low charge rate, dropped the temperture.
My phone gets really hot to hold after heavy use w battery plugged in. But only if battery is plugged in.
Sent from my SCH-I500
Related
Anyone else notice their G2 runs super hot in general? My friend with a Desire Z is able to daily use 1.4GHz...I have to set mine to on demand between 245 and 998 for it not to hit 38C+.
On top of that, my G2 gets about 40C when I'm charging which is certainly quite hot! Running Virtuous 0.7.2 w/pershoot, but it does this on Cyanogen and evil kernel as well.
Does anyone know of any disassembly shots/videos? I'm thinking I might take everything apart and re-thermal paste everything...
Thanks!
verkion
Eh... 1st of all... you're going to put thermal paste on the battery? The temperature reading for the g2 is the temperature of the battery.
2nd: I've never heard of a phone that had a heatsink on its cpu. So I don't think you'd even have a place to put thermal paste.
40c is totally fine btw.
Sent from my T-Mobile G2 running Cyanogenmod.
Not on the battery! Although, that's an interesting idea...use the dry thermal pads between the battery and the door. I'm just checking if everything is getting overly hot compared to some of your other devices. Thought it may be the charging circuit having issues or something...or bad battery.
40C is fine though? At what temp do most of you have set for CPU throttling in SetCPU then? I have mine throttle to lowest when it hits that temp.
ibemad1 said:
Eh... 1st of all... you're going to put thermal paste on the battery? The temperature reading for the g2 is the temperature of the battery.
2nd: I've never heard of a phone that had a heatsink on its cpu. So I don't think you'd even have a place to put thermal paste.
40c is totally fine btw.
Sent from my T-Mobile G2 running Cyanogenmod.
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Click to collapse
40C does sound pretty warm to me even if its while the phone is charging. I am OC'd to 1.4ghz and even when using the phone while charging, I hardly ever go over 37C.
My on-demand is set to 368/1497 and when temp>38C 245/768, although that profile never really comes into play as my temperature rarely gets that hot. Have you checked your running applications to see if there is something eating system resources? Reason I say that is because the only time my phone gets noticeably 'hotter' is after I have been playing Angry Birds for say 20+ minutes.
I wonder if its due to Variable charging currents/rates. I've noticed this is particularly problematic when i charge from say...15% battery. And yeah, Angry Birds for 20+ mins = toasty!
verkion
Hmmm, that seems a bit warmer than the norm. The thermal pad idea was a good thought though. But I'd suspect some modding to be done for it to work.
There's a very detailed teardown at http://tjworld.net/blog/htc-desire-z-tear-down
Can an informed person contrast these 2 roms for me please
Sent from my SCH-I500 using XDA App
I am not informed but I can tell you dl09 broke my GPS. It takes 10 minutes to get a sporadic lock. I had to revert to dj05 in order to fix it.
I'm curious too. So far, I haven't really seen anything, so I haven't upgraded.
I've been running it for a week now. Looks like the GPS doesn't lock as fast anymore compared with DJ05. It also currently has me on the wrong side of the freeway by my office so it's not that pinpoint accurate either. I think the WiFi is faster & stronger on DL09 than DJ05. It's probably not worth making the jump to DL09 but I'm not going to revert to DJ05.
Dj 05 works better...everything works on it. Dl 09 not so much...
Radio DL09 gps did not lock as fast wifi about the same on each.
Move back to dj05 working great for me.
Sent from my SCH-I500 using XDA App
For me, I noticed tremendous increase of battery life with DL09
hkseo100 said:
For me, I noticed tremendous increase of battery life with DL09
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Click to collapse
You are correct. After 8 hours I'm at 72% battery remaining. I think it's because of the under volted kernel.
voghan said:
You are correct. After 8 hours I'm at 72% battery remaining. I think it's because of the under volted kernel.
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Click to collapse
I am starting to not believe that undervolted kernels actually do not save any battery.
I've noticed this pattern with all of the kernels that claim undervolting.
But if what you're saying is true, you can run Adrynalyne's kernel with DJ05 and get better battery life.
I think that's what I'm running. I'm also running a Gingerbread Theme which displays everything black when possible thus reducing battery consumption from the screen, but my phone is still sucking for battery life.
2cents.
RacerXFD said:
I am starting to not believe that undervolted kernels actually do not save any battery.
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Click to collapse
Do you mean you don't believe they do save battery?
I had a UV kernel on my phone for a little while, and there WERE noticeable gains in battery life. It wasn't anything crazy, but running the same programs and the same activity over an 8-9 hour span (sitting at work), I had more battery left at the end of the day with a UV kernel than I did running a normal one.
I didn't really pay much attention to it until I forgot to charge my phone on my way to practice one night. Phone would usually be *****ing to be charged, but it was doing good.
I have been running a lot of different UV kernels over the past few weeks, and there is a point where you go from the UV helping your battery and it hurting battery life. From my testing, as the size of the UV increases, the processor will reach a point where it can keep up at a given clock speed and will then move up as needed. It will get to a point where it's staying at 400/800 clock speeds more often than the 100/200 clock speeds, and the effect is negated.
I'm sure this point is going to be different on all phones, but for my phone is somewhere around a -100mV drop from stock voltages. It will help your battery when sleeping since your phone isn't doing anything, it will use even less power, but as soon as it tries to do something again, the battery life will tank. I also used PowerTutor to look at the usage trend for the CPU, and the system was using more power on average for some larger mV drops. I also started to notice lag as the drops increased, likely due to the processor being unable to keep up.
At the moment, I'm trying to see how a big drop on just the lowest clock speed, and then less of a drop on 200-1000 does. I also made a few adjustments to the scaling factors to help reduce lag at 100/200mhz and keep it in the lowest possible clock speed when running. So far, it seems somewhat promising, though I've only been running my current test for a few hours.
Voltage has nothing to do with how much work the processor can do in a clock cycle. Higher voltages allow faster clock speeds, but the voltage itself doesn't matter if the circuit is synchronized (i.e. has a clock). It's just more likely that you won't be able to run at a given clock speed with a lower voltage, but that will just cause glitches and instability, not less work being done and needing to run at a higher speed.
I realize that it shouldn't matter, but it did. I'm guessing that the lower voltage preventing the CPU from running at the actual clock speed, causing it to high the usage threshold sooner. I could barely keep the phone at 100mhz after restarting with just SetCPU running in the foreground. I didn't look into what was happening much because the battery drain was pretty bad, so I went on to a new test.
Also DL09 is officially supported by vzw....
jv
had my phone charging of my usb on my laptop last night while i was texting a friend, when i noticed that the the Kick stand was getting warm so i checked the temp through my battery widget and found the temp to be 114.5* F I immediatly unplugged my phone and took my case off and the back off to let it cool. I was wondering if this is common or even a safe temp. My setup is as follows
Azrael X 3.1
Net's 2.3 more aggressive universal havs NO SBC
Amon RA 1.8
Max temp for the battery is 60C/140F. I have had temps in that range if I had the screen on for a long time or wifi tether. Around 50/55C though and I would worry.if you notice it often and overclock then I would lower the max cpu frequency.
elegantai said:
Max temp for the battery is 60C/140F. I have had temps in that range if I had the screen on for a long time or wifi tether. Around 50/55C though and I would worry.if you notice it often and overclock then I would lower the max cpu frequency.
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Thanks for the response on this i'm not overclocked so i guess it was the screen being on to long. I will keep a close eye on it from here on out
Jbcarrera said:
had my phone charging of my usb on my laptop last night while i was texting a friend, when i noticed that the the Kick stand was getting warm so i checked the temp through my battery widget and found the temp to be 114.5* F I immediatly unplugged my phone and took my case off and the back off to let it cool. I was wondering if this is common or even a safe temp. My setup is as follows
Azrael X 3.1
Net's 2.3 more aggressive universal havs NO SBC
Amon RA 1.8
Click to expand...
Click to collapse
You are definitely within safe limits on temperature. The only bad thing is the batteries capacity degrades quicker when at a high temperature, but you will probably replace the phone prior to actually realizing the degradation.
Its fine. Mines been a little higher. I don't like using my phone around those temperatures though.
Sent from my Evo using XDA app.
I've read 120 F as safe. So it's close.
General consensus is that using the phone while on USB tends to yield higher temps, but no one knows why.
This is weird. I know a lot of users were complaining of heating issues with their SG2's. I can't complain with the current S2 I have on me. The temps never exceed to that extent where it becomes unbearable to touch, and the temps are usually maintained between 29 and 34 degrees Celsius. I heard from a couple of sources that the Blue motherboard fitted into the S2 has a temperature regulation sensor whereas the Green motherboard does not and many complain. whats stranger is that my quadrant benchmark scores never exceed 3400 (on the 2.3.5 firmware) and its really starting to becoming puzzling. Do I have a hardware defect? or is it something coming in the way from preventing me seeing the full potential of my S2?
A quadrant score of 3400 is typical for a stock SGS2.
lol, I forgot I was running a stock version. i guess those users posting up scores greater than 3700 have rooted their devices with some napthalene kernel, thanks for clearing this up for me. I guess im still a noob. is 34 degrees celsius normal?
^^ "napthalene" ?
Sent from my GT-I9100 using Tapatalk
isn't that the name of the kernel most folks are using? :confused
lol
It is just people aren't used to phones getting warm when they are using an app like a game. They then panic and think their phone is going to die and post about the phone over heating or getting too hot. If you can hold your fingers on it continuously that is warm not hot. Hot is like fresh cup of black coffee which is too hot to hold.
SAlmighty said:
lol, I forgot I was running a stock version. i guess those users posting up scores greater than 3700 have rooted their devices with some napthalene kernel, thanks for clearing this up for me. I guess im still a noob. is 34 degrees celsius normal?
Click to expand...
Click to collapse
Yeah, and most users also overclock their SGS2. Mine for example does about 3400 when stock, but when overclocked (simple when you have root), will bring it to 3700 and above. I've hit close to 4000 in the past as well.
WIth regards to the temperature, that is the temperature of the battery. 34ºC is normal. It can go higher during charging (I've reached 44ºC), but I recommend not charging and playing a CPU/GPU intensive game at the same time as you would have two heat sources that the phone will have to deal with.
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
Click to expand...
Click to collapse
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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Click to collapse
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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Click to collapse
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.