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.
Related
Im plugged into my comp via usb to my phone and strangely once it starts charging...my phone's temp soar! Is this typical? Im seeing the temperature marks via SetCPU
Thanks in Advance
mine also gets hotter but I don't know whether it's as hot as yours, but I think a bit increasing is fine.
The higher CPU speed may be the culprit, this happened to me before. I changed my CPU speed back to normal while charging and it doesn't get hot.
C0dy said:
The higher CPU speed may be the culprit, this happened to me before. I changed my CPU speed back to normal while charging and it doesn't get hot.
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I tried underclock my CPU speeds down to about 245 mhz and the temps still appear to be quite high at about 98-99 Fahrenheit? Ive also got my brightness down to the lowest setting and always Taskkiller Apps beforehand. Anyone know why the temps are still up there?
Mine gets brutally hot (45 degrees celcius) which is about the same when im charging over usb on my ps3, are you using it when its charging? also maybe your usb port isnt giving a constantly equal charge.
Odd mine is set to 358/245 for charging and of I'm not using it my temps don't go over the ambient air temp.
If I am using it my fail safe kicks in and never gets over 41c..
Magic man, posting from my Magic
TheForgotten said:
Mine gets brutally hot (45 degrees celcius) which is about the same when im charging over usb on my ps3, are you using it when its charging? also maybe your usb port isnt giving a constantly equal charge.
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Hmmm...its seems like the usb port is fine
im not sure...i think its the phone's battery maybe? Becuz sometimes even when not charged...the temps are still pretty high....
Lets say ive been playing a game on an app for about 30minutes on medium brightness...I could actually feel the phone warming up
Another scenario I think could be the cause is actually my ROM maybe? Cannon's Complete Eclair has my cpu overclocked at 576mhz which isnt a whole lot any means.... but maybe it has to with the kernels and system related modifications?
Idk...im just trying to throw things out there
Anyways thanks in advance
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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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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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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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
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
-----------------------------------
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
-----------------------------------
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
(Title)
I ask because I used SetCPU to overclock in CM7 to 787 (806 locks my phone up), and I want to be sure the temp stays okay.
Sent from my Liberty using XDA App
i'm not sure about an actual temperature range, but i would say anything that doesn't burn your hand when you hold it is acceptable. what build of cm7 are you using? i've been running set cpu set at 806 with nightly builds from a week ago up to today (13-19) with no issues.
Running build 18. 806 has always locked my phone up, even on CM6
Sent from my Liberty using XDA App
L551 said:
(Title)
I ask because I used SetCPU to overclock in CM7 to 787 (806 locks my phone up), and I want to be sure the temp stays okay.
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But afaik, the temp the phone gives you is the battery temp, not the cpu temp, so it could be much higher than the reported number...
Anyway, 42° is moreless the line temp for me.
Darius_bd said:
But afaik, the temp the phone gives you is the battery temp, not the cpu temp, so it could be much higher than the reported number...
Anyway, 42° is moreless the line temp for me.
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Huh. Didn't know that. Thanks for the info.
My battery got to around 46C while charging.
L551 said:
Huh. Didn't know that. Thanks for the info.
My battery got to around 46C while charging.
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Click to collapse
Well, if it's just charging you can create a setcpu profile that it lowers the mhz when doing so, so it doesnt heat up too much. At any rate, supposedly every good device should work fine under 50°C, if it's charging without overclock and you still get 46° then it should be safe.
If you can't measure it, you can't manage it. Try loading the "Perfect System Monitor" app from the Market. It will give you CPU temp data. I wouldn't worry about anything under ~50* C.
Guys, check out the new kernel here:
http://forum.xda-developers.com/showthread.php?t=1870259
It is written for the N8000 but I have run it on my 8013 without issues. The prior version of this caused flaky wifi but so far the newer version has been stable for me. If you do get a wifi crash, just turn wifi off then back on and it will reconnect easily. Up to you whether than small inconvenience is worth it for the extra speed.
Was able to use SetCPU to OC my SGN10.1 to 1704 at Performance and run some tests. Nailed a 6308 quadrant first try - wow!!! I have my SDcard OC'd to 4096 as well. Remember to always uncheck "Set at Boot" in SetCPU when testing out new speeds. You don't want to get stuck in a bootloop if you push things too far.
** One point. I found that OC to 1600 crashed my machine. Don't know why (dev bumped voltage to 1425 mv at 1704 - that's probably why), but for me anyway, 1704 seems stable for now.
I take no credit for this work (this is brieuwers doing) - simply passing the word along and letting 8013 owners no that, at least so far it has not melted my rig. Please do not thank me. Just passing along the word.
P.S., I got one bootloop after flashing with ODIN but then it booted fine.
** As always, if you brick your rig it's on you.
UPDATE - This is about 15% faster now and it feels it.
mitchellvii said:
UPDATE - This is about 15% faster now and it feels it.
Click to expand...
Click to collapse
Does that mean it's 15% warmer?
TonyBigs said:
Does that mean it's 15% warmer?
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Click to collapse
Honestly haven't noticed any heat increase.
Sent from my GT-N8013 using Tapatalk 2
Battery life reduction?
TheWerewolf said:
Battery life reduction?
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Not that I've noticed but I typically use my tablet in my office where it is plugged in so hard to tell.
Sent from my SPH-D710 using Tapatalk 2
there will be a battery life decrease when using the tablet constantly at 100% cpu usage. bumping the voltage guarantees that. as for how much that is i can't tell you but under my normal use my tablet doesn't run full throttle all the time so the extra drain is negligible.
madsquabbles said:
there will be a battery life decrease when using the tablet constantly at 100% cpu usage. bumping the voltage guarantees that. as for how much that is i can't tell you but under my normal use my tablet doesn't run full throttle all the time so the extra drain is negligible.
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What one has to wonder is does the very act of the cpu constantly throttling up and down and measuring what speed is best actually burn more fuel than just remaining at a high constant overclock? Think of it as city stop and go driving vs cruising on the highway.
If we are talking hours of difference then you have a point. But if we are just talking an extra 20 to 30 minutes of battery I would rather just have the speed. YMMV.
mitchellvii said:
What one has to wonder is does the very act of the cpu constantly throttling up and down and measuring what speed is best actually burn more fuel than just remaining at a high constant overclock? Think of it as city stop and go driving vs cruising on the highway.
If we are talking hours of difference then you have a point. But if we are just talking an extra 20 to 30 minutes of battery I would rather just have the speed. YMMV.
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Well yeah,.going.faster means finishing quicker but generally you can expect higher levels of inefficiency at higher rigor... my somewhat educated opinion, without tossing around numbers, is that he effect on the battery life should be minimal.
Theres also the fact that with a 10 inch tablet, the screen takes up a clear majority of the current.. the processor, even while at 100% still pales in comparison.. and the processor is.not often at 100%.. you dont really flash the screen.on and off, you usually have it on for a block of time.. processor only really works during tasks and then idles.
Sent from my SGH-T959 running 4.1.1