[Q]sns cpu - what is the healthy temp range? - Nexus S Q&A, Help & Troubleshooting

When using netarchi kernel and oc the nsn to 1.2 and playing for like 30 mins I've noticed rhe temp rices to 36c, while on 1ghz temp was around 27.. I was wondering what's the healthy temp range for the hummingbird cpu?
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36c is normal.

So on what temp am I supposed to start worring?
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I'm not sure at what temp the chip will start to melt down but you can be sure that the hotter it is running the shorter it's life will be.
I wonder if these chips can withstand similar to desktop temps? My guess would be they use the cheapest materials possible so probably not.
That being said the difference between someone who plays a lot of games on stock clocks and someone who doesn't will also affect the life span due to the constant rise in temperature.
You may find that running it at 40 degrees Celsius it will still last for several years (longer than you will keep the phone), or you may find it dies within 6 months =P hard to know really!

I looked up and down and couldn't find detailed specs such as intel publishes. All I could find is a 9w tdp (i think) which doesn't say much for maximum core temp spec.
I would imagine it may be similar to other 45nm A8 based cpu if we can find any real spec sheets.
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I found the manual for the chip. The operating temps are -25 to 85 °C.
Oddly the manual pegs the SGX540 at 20m tri/sec where I've seen 90 tri/sec being talked about on many sites.
"3D graphics acceleration with programmable shader up to 20M triangles/s and 1000 Mpixels/s"
Don't push your luck on the temps though.
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[hfm] said:
I found the manual for the chip. The operating temps are -25 to 85 °C.
Oddly the manual pegs the SGX540 at 20m tri/sec where I've seen 90 tri/sec being talked about on many sites.
"3D graphics acceleration with programmable shader up to 20M triangles/s and 1000 Mpixels/s"
Don't push your luck on the temps though.
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never mind about my triangles quote, I think that was at 200mhz..
Edit: Actually the gpu might only be running at 200mhz..
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Related

What temperatures are acceptable for overclocking?

My sensation is currently overclocked at 1.73ghz, and according to a temperature widget I have it seems to hover between 25-45 degrees. I can only find the one temperature reading, so I think this will be the battery temp. I've set setCPU up to run at 1.73ghz below 35 degrees, then come down to 1.5ghz above it. If it gets to 50 degrees, it's then set to drop to absolute minimum and play a warning sound. I've also set it to drop to minimum when the screen is off to save power if the phone doesn't sleep, and to not exceed 1.2ghz when on charge or during a call. None of them are fixed, they're set to intellidemand or whatever it's called.
Do these settings sound reasonable? What sort of temps would be deemed as normal? I don't want to shorten the life of the phone if I can help it.
Also, if this temperature reading is just for the battery, what would I need to monitor CPU temperature too? Is there an app available so I can actually log the temps to see what happens when playing games, etc?
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Anyone?
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System tuner pro shows CPU temperature and does logs.
Matt
Cheers, I'll give it a try.
What sort of temperatures are acceptable before I risk the CPU's lifespan?
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Why do you need these over clock speeds? They will only ultimately increase temp, burn excessive battery and reduce the life span of your device.
Use common sense, these speeds are only worth using for bench mark tests
Personally anything above 43 is to hot for my device, although not same as yours, you can use set CPU to throttle down at this temp
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I mainly wanted to overclock since the normal sensation was underclocked in the first place, the sensation xe runs at 1.5ghz and the CPU is the same. So I wanted at least that. What I'm wanting to do now is find how quick it can be before it starts running too hot. Just wondering what's considered too hot in the first place.
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My web browsing is much better (faster and smoother) at higher clockspeeds and performance governor. So that's why I run higher speeds. I use my phone for internet stuff more than anything else.
matt
Mine seemed smoother too, for normal use and for my emulators. I found a problem though, setCPU wouldn't let the phone sleep so my battery went from 85% to dead overnight! It also seemed a little unstable even when turned back down to 1.53ghz, so I've uninstalled it and it's now running 1.53ghz just from the kernel. Runs perfectly now and battery life is back to normal. No noticeable difference in performance going from 1.73ghz down to 1.53ghz either, but now the battery temp seems to top out at 35-40 degrees or so, so about 5-10 degrees less than when it was set higher. I'll still give that app a go though so it can monitor and log temps while I'm playing games, etc.
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Tablet temp vs phone temp

Are tablet CPU temps going to be naturally higher? My gnex and my N7 are running the same ROM and kernel but my N7 runs 10°c higher. Could it be due to screen size or am I the only person with this issue? My gnex runs at 30 and my N7 is usually around 42 Celsius.
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Phone do get hotter as compared to tablets due to their size which is comparatively small from tablets. Enthu phone makers/innovators has started to produce demons which adds the heat to due to thermal effect.!!
No Solution as of now...however reports show Snapdragon series has gud thermal resistivity..lets wait once the chip is available then only able to comment further on it...

overclocking GPU

Does overclocking the GPU cause damage to the device??ther's a warning of overtemperature when i overclock.Is it safe?
http://www.tomsguide.com/us/overclock-android-device,review-1762-2.html
To answer with something other than a link, potentially. It all depend on the settings and hardware used.
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Well... it depends of the phone's model. Generally there are not any advice of overheating, the phone simply frezzes or reboots itself.
All overclocking forces to work harder our hardware, so its live will be less (it sufers more wastage and higher temps). Anyway this is not so worrying, cause devices have years of live.
BlackDraunzer said:
Does overclocking the GPU cause damage to the device??ther's a warning of overtemperature when i overclock.Is it safe?
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Depends on the hardware so yes and no. For example, the galaxy s1 had a powervr sgx540 clocked at 200mhz. The galaxy nexus had the same GPU but clocked it a bit higher at 384mhz. These companies that manufacture CPUs and GPUs over clock them on purpose to see how high they can push their products before causing them to blow out. They then set their clock speeds far below that max so users don't have to worry about a CPU or GPU frying. Also you must realize that it depends on the cooling as well. So the cooler you keep the higher it can be safely overclocked.
In many cases a device usually would freeze up if problems came up. However, you'd know first since the device would become very hot. If your device has a GPU temp sensor (most have only one for the CPU) then you can probably get an app that tells you you're at a high temp. It is safe if you know what you're doing but overclocking anything has its risk.
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Nexus 5 heavy thermal throttling in Antutu

I know that some will say that "real use" performance is what matters, however I am disappointed that my Nexus 5 gets substantially lower Antutu scores than all other Snapdragon 800 powered phones, which all seem to achieve scores above 30000.
My Nexus 5 has scored less than my HTC One which has Snapdragon 600.
I rooted my Nexus and ran Trickster mod to monitor the CPU load, CPU temp and CPU clock frequency.
I found that the standard kernel starts to throttle Snapdragon 800 SOC on Nexus 5 at 63°C, initially dropping to 1958 MHz (from 2265 MHz maximum) , then as temperature continued to rise up to maximum of 69°C it throttled further, 1728 MHz, and eventually dropping CPU to 1036 MHz.
Trickster mod doesn't display GPU clock rate on Nexus 5 standard kernel so I don't know if GPU is also throttling, however with such aggressive CPU throttling it does impact performance including video frame rates significantly.
What are your experience with this matter ?
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paul_59 said:
I know that some will say that "real use" performance is what matters, however I am disappointed that my Nexus 5 gets substantially lower Antutu scores than all other Snapdragon 800 powered phones, which all seem to achieve scores above 30000.
My Nexus 5 has scored less than my HTC One which has Snapdragon 600.
I rooted my Nexus and ran Trickster mod to monitor the CPU load, CPU temp and CPU clock frequency.
I found that the standard kernel starts to throttle Snapdragon 800 SOC on Nexus 5 at 63°C, initially dropping to 1958 MHz (from 2265 MHz maximum) , then as temperature continued to rise up to maximum of 69°C it throttled further, 1728 MHz, and eventually dropping CPU to 1036 MHz.
Trickster mod doesn't display GPU clock rate on Nexus 5 standard kernel so I don't know if GPU is also throttling, however with such aggressive CPU throttling it does impact performance including video frame rates significantly.
What are your experience with this matter ?
Sent from my Nexus 5 using xda app-developers app
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Not got my N5 yet, but this is disappointing :-/
Just wait for the custom kernels to start rolling in.
that is no good News!
but we have to find out if that is in any way related to the quality of the cpu you got.
you know that cpu binning thingmim thinking of. maybe you gut very Bad luck and the worst Type of cpu that there is when it comes to snapdragon 800.
Feel free to check out my antutu benchmark section (after the power on test) of the video and the 3dmark section (at the end) to see what happens. 3dmark doesnt throttle it seems, but antutu definitely does.
You DO know that most manufacturers cheat on benchmarks, right?
http://www.anandtech.com/show/7384/state-of-cheating-in-android-benchmarks
alexktz said:
Feel free to check out my antutu benchmark section (after the power on test) of the video and the 3dmark section (at the end) to see what happens. 3dmark doesnt throttle it seems, but antutu definitely does.
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Love the 'Maxed Out!" score on the 3D Mark Extreme test for the Nexus 5 ! xD
That's quite impressive, whatever the Antutu score may be
But, does the phone gets hot when performing benchmarks ? Is it the reason why it throttles on Antutu ? Or maybe just a software issue
The g2 got hot on the buttons at the back and the other phones all get warm to the touch but nothing that you would expect to create a thermal incident.
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alexktz said:
The g2 got hot on the buttons at the back and the other phones all get warm to the touch but nothing that you would expect to create a thermal incident.
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Right ^^' No problem with a bit of heat, that's absolutly normal. But I'd like to be able to touch my phone while playing that's it x)
Waiting for my Nexus 5 32go/white with an ooooold Optimus 2x
aznxk3vi17 said:
You DO know that most manufacturers cheat on benchmarks, right?
http://www.anandtech.com/show/7384/state-of-cheating-in-android-benchmarks
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They do. But point here is not cheating but thermal throttle.
However, coming from a s4, you can raise the thermal limit when custom kernel comes out. I remember thernal throtttle on s4 was like 68 or 70.. Raised the thermal throttle to 100, no problem.
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alexktz said:
Feel free to check out my antutu benchmark section (after the power on test) of the video and the 3dmark section (at the end) to see what happens. 3dmark doesnt throttle it seems, but antutu definitely does.
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Video blocked in my country. India. ?
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Tarun95 said:
Video blocked in my country. India. ?
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Video blocked in Spain too
Blocked in England as well
paul_59 said:
I know that some will say that "real use" performance is what matters, however I am disappointed that my Nexus 5 gets substantially lower Antutu scores than all other Snapdragon 800 powered phones, which all seem to achieve scores above 30000.
My Nexus 5 has scored less than my HTC One which has Snapdragon 600.
I rooted my Nexus and ran Trickster mod to monitor the CPU load, CPU temp and CPU clock frequency.
I found that the standard kernel starts to throttle Snapdragon 800 SOC on Nexus 5 at 63°C, initially dropping to 1958 MHz (from 2265 MHz maximum) , then as temperature continued to rise up to maximum of 69°C it throttled further, 1728 MHz, and eventually dropping CPU to 1036 MHz.
Trickster mod doesn't display GPU clock rate on Nexus 5 standard kernel so I don't know if GPU is also throttling, however with such aggressive CPU throttling it does impact performance including video frame rates significantly.
What are your experience with this matter ?
Sent from my Nexus 5 using xda app-developers app
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that's disappointing! how can a snapdragon 600/HTC one win over snapdragon 800/Nexus 5 and by such a margin? can anyone else comment on this?
Here's an article from arstechnica on the Higher perf SoC's thermal throttling, even my Nexus throttles on NFS:MW on OC, but the default thermal hotplugging can be overridden by new custom kernels which have better thermal logic that has better temp-perf ratio :good: !
On stock Bricked Kernel and DroidKang v6 and no throttling here.
:good:
I've just tested my brand new Nexus 5 (no background apps running at all, fresh boot) and it gets on average just 22500-24500 (the scores vary quite wildly - no idea why - maybe I should put in the freezer?) AnTuTu 4 marks.
It's just around 22C in the room where I'm testing it.
Sigh
I hoped it would be as fast as other SD800 devices.
paul_59 said:
I know that some will say that "real use" performance is what matters, however I am disappointed that my Nexus 5 gets substantially lower Antutu scores than all other Snapdragon 800 powered phones, which all seem to achieve scores above 30000.
My Nexus 5 has scored less than my HTC One which has Snapdragon 600.
I rooted my Nexus and ran Trickster mod to monitor the CPU load, CPU temp and CPU clock frequency.
I found that the standard kernel starts to throttle Snapdragon 800 SOC on Nexus 5 at 63°C, initially dropping to 1958 MHz (from 2265 MHz maximum) , then as temperature continued to rise up to maximum of 69°C it throttled further, 1728 MHz, and eventually dropping CPU to 1036 MHz.
Trickster mod doesn't display GPU clock rate on Nexus 5 standard kernel so I don't know if GPU is also throttling, however with such aggressive CPU throttling it does impact performance including video frame rates significantly.
What are your experience with this matter ?
Sent from my Nexus 5 using xda app-developers app
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Click to collapse
The LG G2 and many other manufacturers cheat on Antutu your device should score much lower and I've many phones just look at my sig to find that out lol....if you want to get a good benchmark check out 3D Mark they are the best and will be ban brands that cheat on these benchmarks...there are only a handful of devices that beat the Nexus 5 in terms of power and they are running full x86 Intel chips with windows IE: Windows surface 2
My n5 is running Franco kernel, UV -75 and cpu under clocked to 1.7ghz. Running dalvik and the Qualcomm/bionic libs. Raised my thermal throttle to 90C from default 60. My GPU is set to 320mhz.
I still get 28,000!
Every phone except Nexus cheats in benchmarks. You also need to download Motorola optimized Dalvik to match OEM phones scores I believe. If you try hard enough you can match Note 3 or G2 scores.
But why would you care? They're not at all representative of real world scenarios except maybe GPU tests and even that could be argued.

Is it possible to have a partially working processor?

It has come to my attention through benchmarks that my CPU is not performing anywhere near where it should be. It also has a -1C reading on Core 2 (technically the third core) in Synapse that occasionally flickers a temperature that is MUCH lower than the rest of the chip (like if the rest of the chip says 70, it will say 40 and it idles at 27C while the other cores don't go below 33C).
My AnTuTu is 62k and my AnTuTu beta is only 76k. In the AnTuTu beta, even the One M9 is destroying my chip (I only beat it on RAM score, Multi-Core, and 3D) - the UX scores are all about 25% under the throttled Snapdragon 810 and in the beta, the Note 5 should score almost 84k. The only benchmark that my phone is beating it on is the 3D benchmark (14602 to 13929).
If my CPU IS damaged... How on earth would I even go about getting T-Mobile to understand what I'm talking about? I mean the phone performs admirably anyway but if this isn't the performance I should be getting, I don't want to have a defective phone...
EtherealRemnant said:
It has come to my attention through benchmarks that my CPU is not performing anywhere near where it should be. It also has a -1C reading on Core 2 (technically the third core) in Synapse that occasionally flickers a temperature that is MUCH lower than the rest of the chip (like if the rest of the chip says 70, it will say 40 and it idles at 27C while the other cores don't go below 33C).
My AnTuTu is 62k and my AnTuTu beta is only 76k. In the AnTuTu beta, even the One M9 is destroying my chip (I only beat it on RAM score, Multi-Core, and 3D) - the UX scores are all about 25% under the throttled Snapdragon 810 and in the beta, the Note 5 should score almost 84k. The only benchmark that my phone is beating it on is the 3D benchmark (14602 to 13929).
If my CPU IS damaged... How on earth would I even go about getting T-Mobile to understand what I'm talking about? I mean the phone performs admirably anyway but if this isn't the performance I should be getting, I don't want to have a defective phone...
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Click to collapse
Is your phone working properly when doing phone things? Is it modified?
What software version are you on? Kernel?
We need all that.
By the way......scores don't really mean anything as It's a cellphone, not a gaming rig but understandable people want to test performance. Do you use your device mostly fire gaming? If so do you get any lagging dieing play now compared to before?
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I just got a note 5 from t-mobile today and my antutu benchmark is 41022. Under the Note 4. Im thinking I should take it back. And I did a system restore.
Gonna be fun explaining this at the store.

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