Hi Guys
Basically had two S4's from phones4u, my first was the black mist, which had intermittent faults and in my opinion overheated. This was sent
to Samsung who said that in a nut shell it was fine and the S4's ran warm get over it or words to that affect. As I was unhappy and out of the 28 day return I decided to sell. I was still in love with the S4 so bought another again from phones4u from an ad as an upgrade but I was given the receipt.
This one is the arctic blue version which is really sexy hehe and I love the look, problem is this one seems to also run hot in fact even hotter than the black mist, I was hoping as the blue model was newer Samsung would have identified the heating issues and built the next batches with possibly better thermal compounds or some other way of reducing overheating. This version also occasionally lags and jutters from time to time, I find when on power saving mode they both ran smoother.
My problem is I only have a few days left on the 28 day return so I want to make sure that I havent been that unfortunate to have 2 brand new s4's that are faulty, I know that the s4's run hot and I know that a lot of people are complaining about smoothness, but how hot is the norm and how smooth should they be?? is the question.
I've had loads and loads of phones including, htc one, iphone 5, S3, various windows phones, so I know how smooth smooth should be.
I would like to root and put a custom rom on but I'm holding out to know if this phone is faulty or slightly faulty so to speak, or if everyones S4 is as hot and every so often jerky, I find internet very jerky especially when using chrome browser simple things like scrolling, its not my wifi as my wifes s3 and ipad mini run smooth or smoother.
On Antutu my benchmarks vary from as low as 21000 to as high as 26000?, I know that Samsung is involved in this benchmark rigging thing but surely thats not right?, sometimes I have wifi on dont know if that makes a difference both to benchmarks and heat?.
When I do a stability test, the top half of the screen gets very hot and normally temps start at 30 and rise to around 40 with a gradual increase, as for the stability it goes from 140 to sometimes 70 (3 or 4 times) it also takes around 15% out of my battery for around a 10 min test.
I have attached screens as luck happens the last stability test the phone went to under 40 as you can see, I charged the battery left it a while then ran the test fresh, please can you run the stability test on your s4's guys and put my mind at rest or help me prove to phones4u my phones running hot.
My firmware is UBMGA - i9505
Many thanks
Mav
Of course s4 is hot when you use processor a lot or when you recharge s4. Mine hasnt ever become uncomfortable hot but it is warm. Antutu score doesnt mean anything because everybody has different apps running and so on. You had two s4 and it is almost impossible that both of the phones has problems. Remember that s4 is very powerfull and it is very tight package so it is normal if its hot.
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My SGS4 is always hot during playing games. Sometimes extremly hot. I've sent it back for warranty repair but they said it's ok. So no luck.
S4 is hot
its hotter than S3 i used to have. It says 1.9Ghz but in games or benches its sometimes lower even than 1.5Ghz because of thermal throttling... when i used 1.5Ghz as max in setcpu i had better results in 3dmark! yep! and antutu score become stable - a bit lower but stable, with 1.9Ghz i had 24000-25600. with 1.5Ghz i had 24300 almost every time.
But now im using UV kernel and i UV -0,50V and i set thermal throttling temp to 90'C, now my antutu score became almost stable at ~26100
I think samsung overclocked this S600 to much... 1.5Ghz is almost stable but 1.9Ghz is definitly not.
Related
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" ?
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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?
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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.
As we can see in many forums, people like to overclock their phone to increase It's performance although overclock can increase battery live and may broke their phone. I think the increased performance can only be felt through benchmark software. The effect on the apps is almost negligible specially on high end phone (like our Note). Why do you overclock your phone and use overclock on daily usage (I understand if the reason of overclocking phone is for satisfaction) ?
Never saw the slightest reason to overclock my phone.
Emulators and because I cannot resist getting extra performance. My captivate was a beast OCed.
Some people don't get it others do...like everything in life. Some don't get how we can live with a phone this big but we do...
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On GB (LC2) I overclocked to 1.6gHz and it made everything run smoother (screen transitions, opening and closing apps etc.
On ICS I haven't felt the need to OC. It runs super smooth and fast as it is.
But maybe I'll get bored some time in the future and do it just for something to do...
I'm on stock GB LC1 CF rooted and I OC to 1.55.
Differences when I open apps. They open faster. And not that huge battery life drain because cpu stays at 1.55 a little time and for me the faster app opening matters
*only 2% at 1.55 (not even 1h from 40) - with CpuSpy
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Its not bout whether its "important" or not... Its more like, If you can...then why not!? I did overclock my sgnote till 1.6ghz at 1.7 it would reboot.
Its like gettin more for less
Just as Overclock with your desktop, some take a step further by changing heatsink, better ventilation, water cooling, etc.
Exactly, its just free power and if you are not dumb, you are not going to kill anything. This is not the dark ages of overclocking and those fears people seem to still carry from those times.
Take for example on GB running 1.6Ghz Nenamark2 scores me about 34fps or so..Damn close to my record with the Captivate which is 33.5! Then I ran 400Mhz on the GPU and boom..53fps...that is some kick ass gains there. While I will probably run 300Mhz mostly, if I find a game that needs the extra performance, I know I have it there so why not use it.
This is not the dark ages of overclocking and those fears people seem to still carry from those times.
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Very true.
On my desktop I have an Intel i5 2500k (original 3300 MHz) OC to 4500 for daily use and when needed 5 GHz.
From 1 year and a half the CPU runs like this and never had any stability issue. And my PC kinda stays on A LOT.
So yes, we don't live in the dark ages of overclocking. Why people STILL HAVE FEAR OF OC!?
These days OC is very easy. Most of the times you can't broke a device / component from OC, because the "drivers" of some microcontrollers from your motherboard won't let you (a lot of protection these days )
Indeed. Plus if you are too afraid then dont push higher voltage, just OC with stock voltage as much as your CPU can do.
anyone notice that it get slower when the phone is hot?
i tested with quadrant standard when its hot i only get 2400 points and when it cool down a bit it get back up to 4600
it was done on a fresh wiped rooted stock rom
rickyleung said:
anyone notice that it get slower when the phone is hot?
i tested with quadrant standard when its hot i only get 2400 points and when it cool down a bit it get back up to 4600
it was done on a fresh wiped rooted stock rom
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That's pretty normal for all modern cpus/motherboards. Internal temperature sensors have the logic to slow down the cpu if it's overheating, in extreme cases, shutting it down completely to avoid physical damage. I think it's called thermal throttling.
nabbed said:
That's pretty normal for all modern cpus/motherboards. Internal temperature sensors have the logic to slow down the cpu if it's overheating, in extreme cases, shutting it down completely to avoid physical damage. I think it's called thermal throttling.
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i understand but my t-mobile S3 gets pretty hot with normal usage e,g internet or gaming
just wondering if anyone have the same issue
rickyleung said:
i understand but my t-mobile S3 gets pretty hot with normal usage e,g internet or gaming
just wondering if anyone have the same issue
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All of my previous phones (evo, evo3d, evo lte, epic touch) and this one would get pretty hot under one of two conditions - playing 3d games or browsing certain websites. When I say hot I mean about 90-105F. If yours is getting much hotter I'd be looking into getting it replaced.
My nexus 10 froze two times today ( pretty normal, it usually freezes about 5 times a day) but today, a strange sound came out of it ( "rrrrrrrrrrrrrrrrrr" )
I don't know if it were the speakers or if it came from somewhere inside the tablet... I am very disappointed, I sold my transformer tf101 because it froze 3 times in a week, that was already to much for me. Why can't Google just fix it ? Or are they working on a fix ?
Inse
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Are you on a custom kernel? That sounds similar to the CPU crashing and hanging, thus the repeated noise
try setting your cpu governor to performance if you have a custom rom or kernel. solved the issues with rebooting for me (for the most part)
Well, you have to determine why the tablet is rebooting. If the device is getting noticeably hot and there is a "slideshow" effect then it is a indicator that it is being thermally throttled. Changing the governor won't necessarily fix this and in some cases can exacerbate it.
If you are indeed on a custom kernel, then then the kernel crashed. If its a reoccurring event then I would look at flashing a different kernel (Ktoonz or another) and seeing if that fixes the issue.
I haven't installed a custom kernel or custom rom, I not even rooted. On the left side of the camera ( when holding in landscape) the tablet gets very hot while playing simple games like pudding monsters. Is that normal ? Happens it to anyone else ?
Send from my lovely Sensation XL,
If I succeed helping you (rare) don't forget to hit the thanks button
There is currently a theory (tested by members and mostly supported by gathered data found in this thread) that the CPU does not have a temperature sensor and instead estimates temperature based on an equation. According to the member who did some testing, the equation is way off from the actual temperatures. This can cause freezing (due to lag from thermal throttling) which would account for the sound or the random reboots as the temperature equation reaches a critical point and reboots the device.
I would pay attention to the KT Manta kernel thread as there's some interesting research going on over there. I can say having used that kernel from day one, 100 MHz to 1.7 GHz and extremely undervolted I haven't experience a single instance of throttling or rebooting. The only reboots I've had were when I was dialing in my undervolts. I tried messing with the GPU voltage, but mine appears to be somewhat picky and I really couldn't undervolt the GPU much. The CPU on the other hand undervolts like a champ.
However, if the theory that Samsung uses an equation to determine temperature and not an actual sensor, undervolting will have zero effect on "temperature" though it will save battery. Having never encountered thermal throttling (even after significant game play and other activities) I can't speak to that issue. Though I can say that with my undervolt settings, the battery lasts a crazy long time and I have absolutely no performance issues.
While playing some games I noticed my phone(N910H/Exynos) has a very hard time keeping framerates once it heats up, I downloaded 3D mark and a frequency/temp monitor app and discovered that during Physics test my phone throttles at 92°C and keeps frequency at 1500MHz(simply can't sustain the 1900 supposed max) to prevent burning, how can the CPU reach 90° while my hands are barely any hot?. Then I watched some disassembly videos and turns out theres no thermal pad/paste between the CPU and "heatsink"(these older phones don't really cared for cooling,it sinks heat to the frame).I re-did the benchmark while applying slight pressure over the CPU area and my physics score went from 1500 to 1600, still reaching 90°C but taking a little bit more time to do so, so it kept 1900MHz for longer.
So I though about doing the experiment of applying thermal paste over the CPU, but i'm scared I may brake the phone on the disassembly, so I'd like to ask if someone is willing to do the test to see if it's worth it. Maybe we can unlock gaming potential we didn't know was there, thank you guys.
[Update] So I did the test
TL;DR: There's already a thermal pad there, so it's not like the results are shocking, it does make a difference but it's not worth disassembling your phone just for it.
BUT there's an additional experiment I'm gonna make sooo things could change.
WARNING: if you're thinking of disassembling your phone for any reason be warned that the spen digitizer connector is a little bit hard to connect so it happens pretty often that it won't work, so test the spen before reassembling everything.
Long version:
Anan did not publish the OC kernel yet but I was too curious and did the thing anyway, you don't need to remove the screen from the mainframe so the procedure is not really that risky.
Turns out that pinky thing I saw on the images are thermal pads (as anyone not stupid as me would already know), not copper as I originally thought, anyway since thermal pads are worse than thermal paste(even the 2w/mk ****ty one I used) I did replace it, I had to use a generous amount to make contact, after all it's replacing a thermal pad(0,5mm i think).
Overall CPU temps got like 5-10°C lower, but the benchmark results are pretty boring since they don't thermal throttle the CPU much, geekbench got 100-200 average more on multi core (no difference on single core) and antutu went from 99251 to 103408 ,CPU multi-score went from 26136 to 27971. The stress test basically achieves the same temps, only taking a few seconds more to throttle.
However,gaming performance did get a considerable boost,since they offer a constant heat output. Minecraft( yes it thermal throttles the cpu a lot) almost doesn't see throttles anymore granting a SIGNIFCANT better performance, Free fire also does perform better but stupid me did not pay attention to temps before the mod.
Heat on the phone also feels WAY less concentrated on the CPU area.
Now if you know a little bit about this stuff you know that thermal pads are usually used when the heat source is not touching the heatsink, which is the case here. I am 100% sure the results would not be this boring if the CPU actually touched the midframe, so I'm going to do another test sometime putting a 0,5 mm copper pad(401 W/mK vs the 2 from my thermal paste) to see the actual result I was expecting.
I know all this sound pretty stupid and pointless but I'm going to use this phone for another year or two so I want to make the most of it, also I really like this stuff.
If you want to know WTF is even going on you can watch this video/read the article: https://www.gamersnexus.net/guides/2137-thermalpaste-types-conductivity-and-more
I think someone has already done that, don't recall the thread
Use a kernel which can give you possibility to tweak. Search on Exynos forum.
w41ru5 said:
Use a kernel which can give you possibility to tweak. Search on Exynos forum.
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A custom kernel would not solve this problem, as you need to get heat away from the cpu so it can maintain high power usage and low temps.
The only way a custom kernel would help the cpu run cooler is trough undervolting or increasing temperature limit, the latter is obviously dumb, about undervolting I have already tried managing mere -50mV wich did not change a thing.
So Anan confirmed he's porting Helios Kernel V3 to the lineage 15.1 rom (wich is the one I'm using) then well be able to overclock to 1500/2100. Once he posts that I'll see just how hard this phone throttles and then maybe do the procedure myself.
I got :
99251 on Antutu
1114 single 3734 multi core on geekbench
It throttles in both
the stress test in Antutu gets it so hot Im not really confortable letting it finish, it imediately reaches 90°C, keeps oscilating between 900 and 1900 on the big cores,in 5 minutes the entire phone is burning hot.
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Worth the effort it looks like