(Q) Temperature monitor - Galaxy Tab Q&A, Help & Troubleshooting

I feel my tab became hotter, especially at top right. Is it normal? i'm using temp cpu widget and the widget say my temperature is 39-40 degree celcius, is it okay?
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Related

Overclock/voltage tables

Does anyone have any decent overclock and voltage tables for this device? I'm using ones for the sensation ands it not too bad but seems like it might be undervolted too much. Running at 2.2ghz and temp is steady under 31c
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uau! with an 1.5gz overclock (real clock ) my vivid reach 40~45 Celsius. but i'm brazil, where the normal temperature is +- 19~25 Celsius

What is Overclock

Hi Guys.
What is overclock and how to get it.
Wats the use of it.
I am using project X
Overclock is the process of changing the frequency of the processor to a higher value. The use of it is to make the phone faster (nof sure of this). And of course if you overclock, your phone's battery will die faster. There's undervolting too.
You can get it by using apps like SetCPU from the play store. You also need a kernel with OC support e.g. Redux kernel, xs-ics.
Sent from my HTC Incredible S using xda premium
Spot on zukri
On a basic level, if dome right it should make the phone more responsive, faster, smoother. It will raise the voltage which raises heat and more voltage is drawn from the battery though
Sent from my Nexus 7
markj338 said:
Spot on zukri
On a basic level, if dome right it should make the phone more responsive, faster, smoother. It will raise the voltage which raises heat and more voltage is drawn from the battery though
Sent from my Nexus 7
Click to expand...
Click to collapse
Geez. This kind of questions are easy to answer. If there is an exam for this, I will get a straight A
Sent from my HTC Incredible S using xda premium

Android system battery drain is this normal?

I have changed my firmware from 10F to 10H as I heard that it is much better. I rooted it and then reset it to factory settings and I deleted some of the bloatware. I used LG gearbox and set the CPU speed to 1000mhz on two cores and used this guide. http://forum.xda-developers.com/show....php?t=2048315
In additions, I installed fast dormancy toggle from here. http://forum.xda-developers.com/show....php?t=2021248
Yesterday, I used the phone with light usage such as browsing for a few minutes that's all, but still the android system was on top, I hardly used it why is this?
On the CPU it shows that it was running on 51mhz for more of the time than deep sleep, that must be the reason why the battery had been draining.
android system is more than one app, is the system it self...
Its logic why is on the top
yeh but even wen my phone was not in use how come it was hardly on deep sleep? compared to the galaxy s3 this battery is much worse as on s3 the android system is below the screen and screen is on top for usage. on the s3 when the phone isnt in use it is mostly on deep sleep.
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rsabdul said:
yeh but even wen my phone was not in use how come it was hardly on deep sleep? compared to the galaxy s3 this battery is much worse as on s3 the android system is below the screen and screen is on top for usage. on the s3 when the phone isnt in use it is mostly on deep sleep.
Sent from my LG-P880 using xda app-developers app
Click to expand...
Click to collapse
Even in deep sleep the clock is working, the alarm, keys software...
Like when we are sleeping, heart keeps beating, etc...
That's why it's logic to be on the top
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oryt i get you but how come on the galaxy s3 it is mostly in deep sleep?
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RuedasLocas said:
Even in deep sleep the clock is working, the alarm, keys software...
Like when we are sleeping, heart keeps beating, etc...
That's why it's logic to be on the top
Sent from my LG-P880 using xda app-developers app
Click to expand...
Click to collapse
Disregard this, the guy is wrong. Your phone should be in deep sleep most of the time.
Could you please obtain "BetterBattery Stats" or a similar program to post screenshots of your kernel and partial wakelocks? This would help us figuring out what is wrong. My friend has the same phone, and Android system is on top for him too most of the time. We are still trying to find out what is going on.
ArRaY92 said:
Disregard this, the guy is wrong. Your phone should be in deep sleep most of the time.
Could you please obtain "BetterBattery Stats" or a similar program to post screenshots of your kernel and partial wakelocks? This would help us figuring out what is wrong. My friend has the same phone, and Android system is on top for him too most of the time. We are still trying to find out what is going on.
Click to expand...
Click to collapse
He's right... Sorry, my mistake
When in deep sleep :
In first place should be "Cell standby" and after "Phone idle".
It's what I have in mine...
After 9 hours my battery drain was 1% in deep sleep.
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Check the CPU Governor ,, for dual core we set it "hotplug" but about quad core I do not know .
But mainly the problem with governor ,, governor means something like profile . It controls the CPU frequency to get performance or powersave or both of them .
To change governor install any CPU app and you will find it .
Search about governor with quad core in google . Sorry my phone is dual core (Optimus 3D) .
Sent From My LG-P920 (ICS Ported)
Try Use THANKS Button If I Helped
My phone is no longer set to dual core 1000mhz. now it is set to 1500mhz dual core, as lg gear box has stopped working on my phone lol.
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Ok ill install betterbatterystats and upload some screenshots
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OS_Hacking said:
Check the CPU Governor ,, for dual core we set it "hotplug" but about quad core I do not know .
But mainly the problem with governor ,, governor means something like profile . It controls the CPU frequency to get performance or powersave or both of them .
To change governor install any CPU app and you will find it .
Search about governor with quad core in google . Sorry my phone is dual core (Optimus 3D) .
Sent From My LG-P920 (ICS Ported)
Try Use THANKS Button If I Helped
Click to expand...
Click to collapse
The Governor has no influence on any app or system process holding a wakelock. The governor merely controls the way the CPU frequency is scaled depending on load conditions.
ArRaY92 said:
The Governor has no influence on any app or system process holding a wakelock. The governor merely controls the way the CPU frequency is scaled depending on load conditions.
Click to expand...
Click to collapse
Yeah . I know
The governor controls the deepsleep which makes system off
So by the governor can enter deepsleep then the system will off .
I know what I say , I do not post things I'm not sure about them
Sent From My LG-P920 (ICS Ported)
Try Use THANKS Button If I Helped
Here are tfurther screen shots take, it seems that android system is on top even when im mostly not doing anything and it is hardly in deep sleep as shown on cpu spy. even when i am not doing anything i would lose like 10% per 1 hour 45 mins. Can anyone help please?
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as you can see it had been awake almost the same amoubt as deep sleep something isnt letting the pgone go to deep sleep can anyone help please?
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rsabdul said:
Here are tfurther screen shots take, it seems that android system is on top even when im mostly not doing anything and it is hardly in deep sleep as shown on cpu spy. even when i am not doing anything i would lose like 10% per 1 hour 45 mins. Can anyone help please?
Sent from my LG-P880 using xda app-developers app
Click to expand...
Click to collapse
maybe phones battery isnt calibrate. let battery get empty completely & charge it again. repeat this job several times. then use battery calibration & easy battery saver.
issak said:
maybe phones battery isnt calibrate. let battery get empty completely & charge it again. repeat this job several times. then use battery calibration & easy battery saver.
Click to expand...
Click to collapse
Ok ill try doing that
I have used battery calibration but android system is still on top. Can anyone help please?
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rsabdul said:
I have used battery calibration but android system is still on top. Can anyone help please?
Sent from my LG-P880 using xda app-developers app
Click to expand...
Click to collapse
did you make sure your apps running don't keep your phone awake? and that the phone does go into deep sleep?
a bit off topic but my problem is that the battery has been stuck at 24% for the last 12 hrs, I've not been using the phone because the earpiece speaker is broken so waiting to get it repaired. I've tried rebooting the phone and still at 24%, I'm going to play a video until it drains the battery and do a full charge. battery info shows the phone has been on for 2 days 11hrs since last charge on standby most of the time.
battery
i charged the phone yesterday night now the battery is still on 100% with no use all day. if i open wifi or start for example an app the battery goes down like a countdown.whats the problem then?

Nexus 7 overclocked

I OC my n7 to 1.5 and 51mhz and when I play games like mc4 the CPU gets to 70 are higher is that bad or good please help me.
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Yes, it is really bad
As long as you don't push it behind 80°C you should be fine. But as always with silicon, the cooler the better longivity.
androo45 said:
Yes, it is really bad
As long as you don't push it behind 80°C you should be fine. But as always with silicon, the cooler the better longivity.
Click to expand...
Click to collapse
It never hits 80 only 70-75 and are you sure this is bad? And what should I OC it to?
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kel29738 said:
It never hits 80 only 70-75 and are you sure this is bad? And what should I OC it to?
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Click to collapse
put 200 like min, 100 waste more than 200, is true!
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persano said:
put 200 like min, 100 waste more than 200, is true!
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Click to expand...
Click to collapse
K I put it at 1.5 and 204mhz is it still bad ?
The effects of heat are cumulative. Same thing for temperature cycling on material work-effects (e.g. fracture mechanics)
That means that a lower temperature for an extremely long time can be worse than a high temperature for a short time. There is no magic "you are safe below this temperature" assurance that can be handed out.
If you use your device hard, you will wear it out sooner - on average. (What an individual device will experience can not be predicted in advance.)
Arrhenius sez ~ exp(-E/kT)
So what is the best Overclock settings for the motley kernel and what is the safe zone for my CPU while gaming or browsing or YouTube?
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.....
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Try it and find out.
What is this?? Read the kernel thread. Why would you install a kernel without knowing anything about it?
I read everything about it.... I just need some good oc settings so it won't hit 70 while gaming or is it normal to get that high while playing intensive games?
Sent from my Nexus 7 using xda app-developers app
There is nothing magical about 70C.
For long-duration loads (say gaming for several hours straight), the CPU temperature rise will be a certain temperature rise above ambient for that load condition - so somebody gaming outdoors in the tropics will experience a higher CPU temp than someone indoors in air conditioning.
My tablet (stock rooted) idles at about 38-40C with the screen on in a room at 20C (68F). Call that a 20C rise above ambient for an "idle, screen-on" condition.
I have coded a threaded native program meant to saturate each CPU core as well as the memory bus (& tweaked it for max temperature rise); when running it simultaneously with a long-lived graphics benchmark, I have seen peak cpu temps of 85C. This corresponds to a 65C rise over ambient. This is a ridiculous load, though.
As mentioned elsewhere, the stock kernel has thermal protection mechanisms: a rate throttle at 95C and an emergency shutdown at 100C. With that (above) ridiculous load, I couldn't get there with 4 cores @ 1.2 GHz. It is possible that by running the same load for many hours continuously (or inside a hot car) it might hit that limit though.
But I don't think that the existence of an emergency shut-off means that below that temperature means "your device won't experience long-term degradation" - more likely that emergency shutdown is there to prevent somebody's defective tablet from burning down a house. Asus/Google are much more concerned about tort lawyers and product liability lawsuits than they are about the longevity of somebody's stupid $200 tablet... that has an invalidated warranty.
If you are gaming for an hour or so at a time, 70 or 75C is probably not going to cause an immediate hardware failure.
Your tablet is made out of a bunch of materials that are subject to a variety of failure mechanisms. Every one of those mechanisms proceed at a faster rate at higher temperatures. (Remember the old rule of thumb "reaction rates double for every 10C rise in temperature"?)
So, enjoy your tablet for gaming. But don't leave the performance governor enabled all the time: your device will spend more time over the course of its life in an idle condition than actually doing anything for you - there is no point in you cooking it slowly to death while it does nothing useful for you.
cheers
You're right but I get 70c in a matter of minutes I think I'm just gonna retire from oc and stick with the stock kernel
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What if I make the nexus 7 run at 1.3 instead of 1.2?
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kel29738 said:
What if I make the nexus 7 run at 1.3 instead of 1.2?
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Click to expand...
Click to collapse
It will not serve a much...
Okay so just keep it at 1.2?
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it is better it in1.3 and min 200 (for battery saving) but 1.2 is well, why dont overclock gpu a bit, or use some tweaks or a new kernel
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How do I over clock the GPU ( I'm an noob) and which kernel to over clock the GPU and app?
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kel29738 said:
How do I over clock the GPU ( I'm an noob) and which kernel to over clock the GPU and app?
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Click to expand...
Click to collapse
You can do it with M-kernel and trickster mod
What do I oc the GPU too?
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I can't stress enough the importance of voltages to temps. On stock Trinity kernel I ran 1.6ghz at "default" voltages (can't remember how much, something like 1.2v) and hit temps of 95c.
I dropped it down to 1.125v and my temps went down to a max of 75c and usually much cooler.
Anyways, you'd be surprised just how much the voltage affects the temps.
Good luck guys!

Brightnes temperature control how tog delete?

How do i delete this anoying brightnes temperature control? After being in the sun with 100%, after 3 min italienska goes down to 87%, then after 1 min it goes down to 70%. And i see less of the screen in the sun because of that
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Using the search function helps a lot: http://forum.xda-developers.com/showthread.php?t=2187017,
http://forum.xda-developers.com/showthread.php?p=43134088

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