Database Develop

[Q] CPU speed and phone temperature

My specific issue involves SetCPU but I'm wondering about the larger scheme of how things work.
My phone gets hot in the car dock when running GPS, Navigation, and Bluetooth (I don't turn it on but I think my dock does it automatically). The general consensus is to underclock slightly when charging because charging generates heat, and I have a SetCPU profile to do that. Then comes the issue of heat generated from GPS and Bluetooth, and possibly processor load when running apps while docked, so I have two profiles for that: one to underclock a few steps down from the charging CPU speed when the temperature of the phone is at 40* C, another to clock down one more step when the temp hits 42* C, which I feel is at the point the phone gets a little too warm for use.
I've noticed that my phone doesn't necessarily stay cooler and in fact, sometimes it gets hotter than before I started using SetCPU. Over the past few days I've seen temps of near 45* C (113* F), toasty enough that I have to let my phone cool down before I can use it again.
So, my question is if underclocking too much is bad. For example, if I'm underclocking too much, does that strain the processor while it is trying to run apps and hardware? Is it better to let the system handle processor speed? I see this in driving a manual/standard transmission car - if I attack a hill in a high gear, I can eventually reach the top but with increased load on my engine. Maybe the processor speed works opposite - too low and it strains too much?
I used to be concerned about clock speed vs. battery life but now that I'm docking in my car more and noticing the heat, I'm more concerned about the heat. I'm currently using redstar's kernel but get the same results with that or the CM kernel that comes with the nightlies.
If it helps to troubleshoot, or if you want to critique me, here's my profile list.
Normal: 245 min, 998 max (default settings)
Priority 100 - temp > 42*C: 460 max, 245 min
P 90 - temp > 40*C: 499 max, 245 min
P 80 - screen off: 384 max, 245 min
P 70 - charging AC: 576 max, 245 min
(SetCPU related question, sorry if this is too far off forum topic) Are there better profile settings I could be using?
Also, I don't quite understand undervolting in terms of kernels. What effect does that have, if any?

[Q] Overheating

Hello guys!
My Razr i sometimes is so warm, I installed an application to see the temperature of the battery and when I'm not doing anything it's 29-34°C (84-93.2°F) and when I use facebook, listen to music and surfing the internet simultaniously the temperature increases to 38-41°C (100.4-105.8°F) What I know is that batteries must not be exposed to temperatures higher than 40°C (104°F)

Battery temperature
Aljecama12 said:
Hello guys!
My Razr i sometimes is so warm, I installed an application to see the temperature of the battery and when I'm not doing anything it's 29-34°C (84-93.2°F) and when I use facebook, listen to music and surfing the internet simultaniously the temperature increases to 38-41°C (100.4-105.8°F) What I know is that batteries must not be exposed to temperatures higher than 40°C (104°F)
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What do you think, if your theory sustain, how could people near equator get along with mobile phones? The max temperature for Li-ion batteries is 45 degrees C when charging, and 60 degrees when discharging (use).

[Q] Normal device temperature????

hi
What is the normal device temperature that you see.. I m not talking abt the battery temperature.. I am talking about the device temperature ...
I am checking the device temperature using the cpu temp app
The normal temperature that I noticed when I got up in the morning was 32c
It is with wifi ON and brightness set to auto and normal 2g
after some minor use the temp now is 40-45c
If I do a 4k recording for 2 minutes.. It becomes really hot and temp goes to 70c
If I play a game the temp goes to 55-60c
While running antutu benchmark it restartEd once... He temp was around 65 for some time
while charging the temp is around 50c?
The device screen really feels hot , even more then the leather back
So are these things normal?
Or is this some hardware problems
I have already checked the battery stats and don't see anything unusual hogging the battery
I have not installed any apps.. Just the ones for speedtest, antutu, cup temp etc
Awaiting replies

Anyone... Any replies... At least the average device temperature

So many views...but no replies...

Ran antuntu and it capped at about 62C. Chill and uninstall the temp apps and use your phone normally.

thanks for the reply.. also can you check the temp while shooting at 4K for couple of minutes?

There is no such normal device temp. The device temp depends on the battery temp. If its between 10-15° c above the battery temp. Then its pretty normal in running conditions ... If the battery temperature rises then automatically the device temp will rise ... In most of the devices its between 40-45°c .. The normal device temp. And 1 more thing the device temp also depends on the type of ui u r using
Sent from my LG-D410 using XDA Free mobile app

You just said there is no normal, but the normal is 40-45°. It also depends on the temperature of your surroundings. I love in southern California and have to mount my phone in front of my air conditioning because our summers were up to 44c this year. I once had my Nexus 5 shut off from heat when it wasn't in front of the air.
Anyways. You're fine buddy, processors throttle at a certain temp and also shut down automatically around 75-80C.

twrp backup cpu 71 degrees celcius Is this normal ?

Just want to buy the phone from a friend but noticed twrp reads 71 degrees when doing backup , no compression or anything
Also battery drains 8%/h no wakelocks, all managed
is this the normal , what can i do to reduce the temp in twrp...
and also battery drain ...no wakelocks

Question Temperature Cpu S23 Ultra

Hi everyone,
I recently bought an S23 Ultra, after installing various device info apps (devcheck - device info HW - aida64) I realized that the Cpu temperature reaches 95 degrees in a moment ...
I put in screen sharing an app info and geekbench6
Do you think it is normal or a defect of my phone?
I add some screens.

194°F at idle? That's way hot even under load.
What's display brightness at? What's the ambient temperature? Battery temp?
168F tops is all I would go for the CPU, maybe 186F but that's pushing it for a smartphone.
Find out what's using all the power and tone it down. Don't count on temperature throttling or auto shutdown to save it from a thermal runaway. It may shutdown and never wake back up...
If the device is hot to the touch, shut it down, power it off. 140F is the top limit for the battery and that's too hot. With a full charge on the cell it can degrade it permanently.

Room temperature : 24 degrees
Battery temperature does not exceed 42 degrees.
That is the CPU Temperature during geekbench6 with cpu running at 100%

dany6669 said:
Room temperature : 24 degrees
Battery temperature does not exceed 42 degrees.
That is the CPU Temperature during geekbench6 with cpu running at 100%
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Click to collapse
I wouldn't bench it if it's running that hot!
Lol, if my battery gets above 105-6F I shut it down.