[Q]Can under volting cause overheating? - Defy Q&A, Help & Troubleshooting

I recently over clocked my CPU to 1.1Ghz and under volted it. My battery gets hot around 40°C on normal use. Can it be the cause?

40 deg is normal..Though depends in the environment you use it..

Related

Battery Temps

What's an unsafe battery temp?....I was using Wireless Tether with MIUI and noticed my phone was hot, I looked and it said 44 *C and 111*F is this bad??
im running MIUI as well, and when i use wireless tethering for a while, itll get up to 42C+, but my SetCPU profile will set the CPU to 245mhz when the temp hits 42C or above.
So I'm guessing 42 is the max temperature to run your phone? or is that still unsafe?

Whats a safe temp with overclocking ???

I was wondering what some opinions are with how hot
The phone gets with overclocking and when to shut it
Down ? With playing around on the phone it gets to 107*
Fairly quickly depending on outside temperature . What's
A safe and not safe zone for temps ?
Sent from my Rooted HTC G2 with Cyanogen 6.1.1 Stable
If my conversion is right thats 41.67 degrees Celsius.:eek Personally, I wouldnt be comfortable letting it get that hot.
I have a SetCPU profile that if my G2 reaches 38.2 degrees Celsius it underclocks it to 245 (max and min frequency, with performance governor). My G2 has never reached over 34 degrees Celsius though. My daily overclock is in my sig (1.5ghz).
AZ2ENVY said:
I was wondering what some opinions are with how hot
The phone gets with overclocking and when to shut it
Down ? With playing around on the phone it gets to 107*
Fairly quickly depending on outside temperature . What's
A safe and not safe zone for temps ?
Sent from my Rooted HTC G2 with Cyanogen 6.1.1 Stable
Click to expand...
Click to collapse
CPU wise it's fine, other parts of the phone and your hand may not be. If it's too hot to hold it's too hot.
Just a note that temperature is the battery temperature and not the CPU temperature.
Sent from my T-Mobile G2 running Cyanogenmod.
I say keep it under 40 degrees Celsius and you're fine.
My phone has only once gotten that hot. I was running a game app on my phone for over an hour straight and I had a case on. Holding the phone in my hand only added to the heat. My temp profile kicked in and I let my phone chill for a while and it came back to normal.
I do not however underclock it to 245 Mhz. I take it down to normal clock speeds of 806 Mhz and that seems to work well for me.
if you dont care about how hot your phone gets or if your watching it ive takin mine up to 1.5 GHz
My nexus one used to reboot at high temperatures. First the screen would become unresponsive, then it would just reset. I think it started doing that when it got into the mid 40s.
So I was just playing homerun battle 3d for a couple of hours and noticed the back getting fairly warm.... Shut it down and looked at setcpu, 117.5F degrees or 38C!!! Hmm lol and its still running like a champ. Might need to set a temp. profile fo sho!
mrbmg said:
So I was just playing homerun battle 3d for a couple of hours and noticed the back getting fairly warm.... Shut it down and looked at setcpu, 117.5F degrees or 38C!!! Hmm lol and its still running like a champ. Might need to set a temp. profile fo sho!
Click to expand...
Click to collapse
Your conversions are not that great. 40 degrees Celsius is 104 degrees Fahrenheit.
So was your phone at 117.5F or was it at 38C? It can't be both at the same time.
38C isn't bad. 117.5F is quite hot, however.
I'll run the 1.516 GHz OC until the battery gets to 100.4 F. Then I drop it down to 768 MHz. However, when the phone is below the max temp I have it set to 1516 max/256 min (I think it's 256 it might be something else, but I'm too lazy to check). So my phone only starts cooking when I'm running my PSX emulator or something fierce
Sent from my phone which was more than my rent
tazz9690 said:
Your conversions are not that great. 40 degrees Celsius is 104 degrees Fahrenheit.
So was your phone at 117.5F or was it at 38C? It can't be both at the same time.
38C isn't bad. 117.5F is quite hot, however.
Click to expand...
Click to collapse
LoL...my bad I meant 48C. And yes it was hot but the phone handled it. I enabled the temp profile back to clock 800 mhz when it hits 104F
Sent from my HTC Vision using XDA App
Mine seems to never get over 25C (76F) but that's not overclocked

Battery Temperature Norms

what are the normal battery temp levels for the galaxy tab? Mine goes from around 28 deg Celsius idle to 43 deg Celsius when charging or prolonged use. Are these safe operating levels or is it getting too hot? At 40 degrees i can already feel the back panel getting warm so im a bit worried about the processor. Im not overclocked and even undervolted by 100mV.
Sent from my undervolted Galaxy Tab running Overcome 1.3
http://forum.xda-developers.com/showthread.php?t=845458&page=2
http://forum.xda-developers.com/showthread.php?t=986067&page=2
Trust me, samsung is giving us all a total headache. For once, my battery temperature went to 53degrees Celsius. I laughed so badly when i saw that.
pawces said:
what are the normal battery temp levels for the galaxy tab? Mine goes from around 28 deg Celsius idle to 43 deg Celsius when charging or prolonged use. Are these safe operating levels or is it getting too hot? At 40 degrees i can already feel the back panel getting warm so im a bit worried about the processor. Im not overclocked and even undervolted by 100mV.
Sent from my undervolted Galaxy Tab running Overcome 1.3
Click to expand...
Click to collapse
Just curious, is your battery charging and discharging normally?
Mine's going from 14'C (outdoors) to 35'C max. (playing while pluged). Normal voltage.
Sent from my GT-P1000 Overcome 1.4.2 using XDA Premium App
The most mine ever goes to is about 36 C. both in use and in charging. Overclocked to 1.2ghz
It chatges and discharges normally, i get abot 26-30 hours out of it with average use. I do live in the Philippines though so that may be the normal temp for me. Just want to know what the danger zone is for his device when it cones to temperature.
Sent from my undervolted Galaxy Tab running Overcome 1.3
Mine goes to 37 38 @and 27 idle
Sent from my GT-P1000 using Tapatalk
Normally it is within range between 27-28 and 38 (C) on my overclocked up to 1.2GHz . When charging and running in the same time - temperature may be a bit higher, because the battery becomes warmer during charging. Important factor is software used for measuring, I use 2 different applications and always compare the readings.

overheating while browsing

hi.
did someone else experience extreme over-heating while browsing?
Today I was browsing for a few minutes using Chrome. The phone was lying on the table and I wasn't holding it in my hand. At one point I have noticed that the screen glass is very hot. I checked the temperature and found out it was 60 degrees Celsius ! (about 140 Fahrenheit).
Is that normal?
I also have an undervolt ( -125 mV).
romitkin said:
hi.
did someone else experience extreme over-heating while browsing?
Today I was browsing for a few minutes using Chrome. The phone was lying on the table and I wasn't holding it in my hand. At one point I have noticed that the screen glass is very hot. I checked the temperature and found out it was 60 degrees Celsius ! (about 140 Fahrenheit).
Is that normal?
I also have an undervolt ( -125 mV).
Click to expand...
Click to collapse
60C is a normal temperature for the cpu, not even close to overheating. is your phone in a case?
romitkin said:
hi.
did someone else experience extreme over-heating while browsing?
Today I was browsing for a few minutes using Chrome. The phone was lying on the table and I wasn't holding it in my hand. At one point I have noticed that the screen glass is very hot. I checked the temperature and found out it was 60 degrees Celsius ! (about 140 Fahrenheit).
Is that normal?
I also have an undervolt ( -125 mV).
Click to expand...
Click to collapse
well..i'd experienced that kind of increasing temperature,but limit was 45 c only,otherwise,i'm using 3g network,with wifi,no such increase in temperature
I experienced same problem today (went on family roadtrip so I was using 3G for browsing otherwise i use WiFi). I use PA 3.15 26April and Franco kernel r134. With -100 mV undervolt and high frequency 1188Mhz. Phone became realy hot I would say around 50°C (back glass) but heat didnt come from CPU but from right and a bit up from CPU.
Xmaster8 said:
I experienced same problem today (went on family roadtrip so I was using 3G for browsing otherwise i use WiFi). I use PA 3.15 26April and Franco kernel r134. With -100 mV undervolt and high frequency 1188Mhz. Phone became realy hot I would say around 50°C (back glass) but heat didnt come from CPU but from right and a bit up from CPU.
Click to expand...
Click to collapse
its either from the cpu or battery. if the heat was close to the camera(up), then its cpu. if its cpu, then its way below overheating.

Nexus 4 CPU Temperature

Hi guys i got my nexus 4 a few months back and i am very happy with it.
I rooted it and i'm running Cyanogenmod 10.1 with Franco kernel r136. My current settings are
Minimum CPU frequency- 384Mhz
Maximum CPU frequency- 1350Mhz (i underclocked it)
My CPU Voltage settings are (followed this thread
http://forum.xda-developers.com/showthread.php?t=2155495
384 - 700 (-150)
486 - 700 (-175)
594 - 720 (-180)
702 - 740 (-185)
1026 - 825 (-200)
1188 - 875 (-225)
1350 - 940 (-185)
1512 - 1000 (-150)
Just checked Device Monitor in franco kernel updater app and clicked it. It is showing CPU temperature is 42 Degrees(106 F). I am a bit worried with this temperature. Is it normal ?? I have no apps running in the background. When i watch 1080p movies it raises upto 48 Degrees.
Any way to reduce the temperature ??
Thank you
Thats normal for a quad core device like our Nexus 4.
And to be honest, it is actually quite low.
Think of it like this. Your body is on average 37 °C. The temperature of your cpu is only 5 degrees hotter than your body.
The cpu can handle way higher temperatures like that, eg. when playing a game.
And when your cpu gets too hot, the phone will shut itself off, so dont worry about it.
lol, that a few degrees warmer than your body temp.. 98.6F
Thanks for the reply. I live in india and we have 44 degrees temperature. Does this effect my phone ???
aviz1911 said:
Thanks for the reply. I live in india and we have 44 degrees temperature. Does this effect my phone ???
Click to expand...
Click to collapse
yes. your phone temperature will also depend on the ambient temperature around it, and itll affect how fast itll cool down too. if the temp around it is 44C, youll need to expect higher phone temps then someone living in a cooler environment.
I just restored my phone from the red blinking led issue, but my cpu temperature is nou 60C idle mode, i think thats a bit much..
Anybody experienced something similar?
I was just curious to what is the max temp of the CPU. because my note 2 will idle near 32*C. Whereas this phone idles 40*C. Battery also isles higher too.
XxLostSoulxX said:
I was just curious to what is the max temp of the CPU. because my note 2 will idle near 32*C. Whereas this phone idles 40*C. Battery also isles higher too.
Click to expand...
Click to collapse
100C is the safety temp. itll automatically shut down to cool off at 100C.

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