Had my pro 2 about 3 weeks now. Slightly undervolted using XTU (CPU -55, Cache -70, GPU -85). Tweeked a few settings here and there, use a different stylus and wacom drivers, but nothing major. I wondered if anyone had done any serious mods to their device to have it running better?
Could you underclock the turbo therefore while leaving a lower max potential performance increase the amount of time that it is in turbo rather than throttled?
Since it gets so hot under load and some of that heat gets transferred to the case I wondered if putting to smallish heatsinks on the main hot spots would increase the thermal dispersion from the processors. The back of the case near the vents get to about 55 deg from what I can see through searches. Those little fans really seem to struggle under load resulting in fairly regular throttling. Not sure if this would make much of a difference though. I'd seen ones that were 40 x 60 x 6mm which i thought wouldnt be too much of an additional bulk but would increase the thermal conductive area and mass.
Cut back the turbo boost and max turbo boost from 17.5W and 25W to 15W and 18W. The XTU benchmark score was reduced from 307 to 306, so marginal difference but there was 0 throttling and a max temp of 78deg. I think I have my solution to keep the temp under 80 to eliminate throttling and thus large fluctionations in fps in games.
Conclusion, lower max performance and ever so slight reduction in average performance under high load, but much more stable performance for games and other processor intensive activity.
Related
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.
Sent from my Nexus 7 using Tapatalk 2
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...
I notice the top of the phone gets really hot when I play games. So far I've only been testing plants vs zombies 2 with a cpu temp app and the cpu temp averages at 62 celsius which is fine on a cold day. However, on a warm day it tends peaks into the 70s and my cpu temp alarm goes off and I can't play more than a few minutes. I've tried to use powersave mode to lower the clock speed and it doesn't make a difference. I think the sandstone backing doesn't dissipate heat as well as a normal plastic/metal backing. I know the cpu is supposed to have thermal throttling, but I'm wondering if there are any non-stock kernels that may have a more aggressive thermal throttle.
Flash CM11 and a costum kernel. Any of them will let you over and underclock, over and undervolt, raise or lower throttling, but not on stock rom.
still overheating
I've flushed CM11 stockrom.
Now when i use waze and charge the opo it gets overheated too.
+ the touch won't work correctly.
Is there another way to stop this?
I have been able to fix quite a bit of thermal throttling experienced in multiple benchmark runs by tweaking with the thermal-engine configuration file. With just a few changes and with the copper shim mod I can now run geekbench for as many five times with almost no drop in score. After that I get no thermal throttling in single core but I have it setup to disable two cores after it hits 55C CPU temp in core 4 and 7. I use CPU Z to see actual CPU temp from the sensor readings. Even after 8 Geekbench runs the two cores are still running at full speed and the phone is registering 44C. It's warm but not hot by any means.
If anyone is interested in playing around with it just look for the file in \System\etc\thermal-engine-8994.conf
Most of it is just two adjustments. One for Max temperature at which it will throttle and the one below is the temperature at which throttling stops.
probaina said:
I have been able to fix quite a bit of thermal throttling experienced in multiple benchmark runs by tweaking with the thermal-engine configuration file. With just a few changes and with the copper shim mod I can now run geekbench for as many five times with almost no drop in score. After that I get no thermal throttling in single core but I have it setup to disable two cores after it hits 55C CPU temp in core 4 and 7. I use CPU Z to see actual CPU temp from the sensor readings. Even after 8 Geekbench runs the two cores are still running at full speed and the phone is registering 44C. It's warm but not hot by any means.
If anyone is interested in playing around with it just look for the file in \System\etc\thermal-engine-8994.conf
Most of it is just two adjustments. One for Max temperature at which it will throttle and the one below is the temperature at which throttling stops.
Click to expand...
Click to collapse
Without your copper shim mod have you found any better but safe values we can try?
At least no thermal throttle until 55 celsiius
It should be safe without the copper shim. The thermal pad it comes with works pretty well. It will still thermal throttle to whatever temperature you set it at so it won't cause any harm.
I've set the Big cluster to a max of 65C and a single A57 core to up to 71C and haven't had any problems yet. I used to get horrible performance with PPSSPP emulator. When running Tony Hawk Project 8 in PPSSPP after 30 seconds of gameplay It used to drop to 6fps and now it can sustain over 20fps after reaching 71C on a single A57 core. I only saw a maximum battery temperature of 40C and the device wasn't noticeably warmer than it was with the default thermal settings.
probaina said:
It should be safe without the copper shim. The thermal pad it comes with works pretty well. It will still thermal throttle to whatever temperature you set it at so it won't cause any harm.
I've set the Big cluster to a max of 65C and a single A57 core to up to 71C and haven't had any problems yet. I used to get horrible performance with PPSSPP emulator. When running Tony Hawk Project 8 in PPSSPP after 30 seconds of gameplay It used to drop to 6fps and now it can sustain over 20fps after reaching 71C on a single A57 core. I only saw a maximum battery temperature of 40C and the device wasn't noticeably warmer than it was with the default thermal settings.
Click to expand...
Click to collapse
[SS-LITTLE_CLUSTER_management]
algo_type ss
sampling 10000
sensor xo_therm
device cluster0
set_point 52000
set_point_clr 42000
action_type 10000
I should change for example here set_point to 70000? This is how it works?
kutulu32 said:
[SS-LITTLE_CLUSTER_management]
algo_type ss
sampling 10000
sensor xo_therm
device cluster0
set_point 52000
set_point_clr 42000
action_type 10000
I should change for example here set_point to 70000? This is how it works?
Click to expand...
Click to collapse
Well yes. Except that's the little cluster and they don't get that hot normally. It's the big cluster that needs to be modified. I also tuned my display thermals so the screen wouldn't get so dim when the phone gets warm. Here you can look over my configuration if you want.
https://www.dropbox.com/s/1yve5d0m7uin0ga/thermal-engine-8994.conf?dl=0
probaina said:
Well yes. Except that's the little cluster and they don't get that hot normally. It's the big cluster that needs to be modified. I also tuned my display thermals so the screen wouldn't get so dim when the phone gets warm. Here you can look over my configuration if you want.
https://www.dropbox.com/s/1yve5d0m7uin0ga/thermal-engine-8994.conf?dl=0
Click to expand...
Click to collapse
Thanks i will try them!!
your settings somehow "unlocked" my phones cpu. lol in geekbench I found an increase of performance of 200 points in multicore from 4020 I had before maximum , now nearly 4300 .It is impressive. also if I run 6-7 geekbench in a row there is a decrease everytime ex 4200 4050 3900 3600..... but temperature stays 45 degree.
I will test them more later.
http://browser.primatelabs.com/user/73366
Someone try this?
Wysłane z mojego LG-H955 przy użyciu Tapatalka
Other than the two of us?
kutulu32 said:
your settings somehow "unlocked" my phones cpu. lol in geekbench I found an increase of performance of 200 points in multicore from 4020 I had before maximum , now nearly 4300 .It is impressive. also if I run 6-7 geekbench in a row there is a decrease everytime ex 4200 4050 3900 3600..... but temperature stays 45 degree.
I will test them more later.
http://browser.primatelabs.com/user/73366
Click to expand...
Click to collapse
Thanks for sharing your results. That's the highest multi core score I've seen on our phones. I never gotten that high of a multi core score. Glad to help. My configuration also tweaked the battery thermal settings so now you should see faster charge times as well. The default charge rates had really conservative thermal settings and the high speed charge would drop after a while but now it will 2.2 to 2.4 amp charge through the whole charge.
probaina said:
Thanks for sharing your results. That's the highest multi core score I've seen on our phones. I never gotten that high of a multi core score. Glad to help. My configuration also tweaked the battery thermal settings so now you should see faster charge times as well. The default charge rates had really conservative thermal settings and the high speed charge would drop after a while but now it will 2.2 to 2.4 amp charge through the whole charge.
Click to expand...
Click to collapse
Yes indeed i saw a difference in chargin thanks for your effort in the configuration. I am not very fond of benchmarks but i run some in my devices after magor changes (firmware....). This device should have been speedier because of the full hd snapdragon 810 combination. I wonder if we delete the thermal config is the device gonna be speedier? I am waiting for 5.1.1 hoping for smoother rom. Lets hope soneone unlocks the bootloader!!!! I took my precautions disabling MLT lol
probaina said:
Well yes. Except that's the little cluster and they don't get that hot normally. It's the big cluster that needs to be modified. I also tuned my display thermals so the screen wouldn't get so dim when the phone gets warm. Here you can look over my configuration if you want.
https://www.dropbox.com/s/1yve5d0m7uin0ga/thermal-engine-8994.conf?dl=0
Click to expand...
Click to collapse
My phone gets really hot with those settings
I overwrote the original one ^^ has someone made a backup and can share it with me.?
I guess it depends on what you're doing but I probably wouldn't play any 3d games with those settings. Here's a copy of the original one https://www.dropbox.com/s/yb76q6qwanb9ujr/thermal-engine-8994.conf?dl=0
smouker said:
My phone gets really hot with those settings
I overwrote the original one ^^ has someone made a backup and can share it with me.?
Click to expand...
Click to collapse
When you apply the settings you need to give time to the phone to 'absorve' them.
Run a couple of benchmarks, test a 4k video, reboot the phone 3-4 times, close it also.
I havent noticed higher tdmperature of 45 celsius.
kutulu32 said:
When you apply the settings you need to give time to the phone to 'absorve' them.
Run a couple of benchmarks, test a 4k video, reboot the phone 3-4 times, close it also.
I havent noticed higher tdmperature of 45 celsius.
Click to expand...
Click to collapse
I noticed that haha now its fine
kutulu32 said:
Yes indeed i saw a difference in chargin thanks for your effort in the configuration. I am not very fond of benchmarks but i run some in my devices after magor changes (firmware....). This device should have been speedier because of the full hd snapdragon 810 combination. I wonder if we delete the thermal config is the device gonna be speedier? I am waiting for 5.1.1 hoping for smoother rom. Lets hope soneone unlocks the bootloader!!!! I took my precautions disabling MLT lol
Click to expand...
Click to collapse
I'm not sure what would happen if you just deleted the file. Maybe it'll revert to some default, or perhaps it won't thermal throttle at all which would result in auto shut off when it overheats. Probably not worth risking it without a custom recovery in case it doesn't boot.
I have notice that my phone is way quicker now. It was fast before but now it's a beast when I push it hard. Also things like PPSSPP emulator was useless with the default thermal throttling now it can beat my Tegra note 7 with 4 A15 cores at 2.1ghz at it.
Was there a problem with your settings? I noticed your settings you had shared on dropbox are no longer available.
uh60james said:
Was there a problem with your settings? I noticed your settings you had shared on dropbox are no longer available.
Click to expand...
Click to collapse
The folder was deleted for some odd reason. I was able to restore it so the link should work now. Let me know how it works out for you.
A few questions about these settings.
-At the top where you have SS-Little_Cluster_management and SS-Big_Cluster_management is the set point the shutdown temp for the entire cluster?
-I think this one is self explanatory by the action listed but towards the middle where CPUx_MONITOR for each core is, is the threshold the temperature at which the entire phone shuts down?
-I'm not sure I am noticing the difference between SS-CPUx and CPU_HOTPLUG_MONITOR. Could you explain these?
uh60james said:
A few questions about these settings.
-At the top where you have SS-Little_Cluster_management and SS-Big_Cluster_management is the set point the shutdown temp for the entire cluster?
-I think this one is self explanatory by the action listed but towards the middle where CPUx_MONITOR for each core is, is the threshold the temperature at which the entire phone shuts down?
-I'm not sure I am noticing the difference between SS-CPUx and CPU_HOTPLUG_MONITOR. Could you explain these?
Click to expand...
Click to collapse
I don't want to assume I know everything about this. Everything I know about the thermal configuration file I learned from seeing others modify the LG G3 thermal config file. I also learned some by experimenting with my G Flex 2.
In my understanding SS-Little_Cluster_management and SS-Big_Cluster_management is the temperature at which the Cluster will thermal throttle when all cores in the cluster are being used at once. From what I've seen anything with "action_type 10000" means thermal throttle. The closest thing I can think off that works like that is how Intel I5 and I7 will limit turbo speed when more than one core is being used. Except in our case this is to prevent higher speeds when it reaches a certain temperature. So lets say your phone is running some heavy multithreaded app now it's going to follow the rules set in Cluster_management. The default Big Cluster temperature is set to start slowing things down when temperature reaches 48C and to not go back to full speed until the temperature drops down to 38C. One thing I find interesting is that at about 48C cluster temperatures was about where the Big cores would drop to a max of 1.5 ghz. So I'm just guessing that this setting may play a big part on the big cores max speed.
[CPUx_MONITOR] seems to shutdown the phone when the core reaches a certain temperature threshold of 120 C and I assume will not allow it to turn back on until it drops below 115C.
[SS-CPUx] on a big core seems to slow the specific core down when it reaches a temperature threshold of 85C and to not allow it to go to full speed until it drops below 55C. However this rule can be overwritten by [CPUx_HOTPLUG_MONITOR] which can shut down a core even if it hasn't reached it's maximum temperature threshold.
[CPUx_HOTPLUG_MONITOR] just tells the specific core to turn off once it reaches the temperature threshold specified. On the default configuration core 4 and 7 are set to turn off when their temperature goes above 50C. After that core 5 turns off at 58C and even core 6 turns off at 61C. At which point only the small cores will remain on.
I hope that helps somewhat.
so according to JerryRigEverything Teardown of the Mix 3, there is thermal paste on the SoC to lower the temps, however according to Antutu and CPU-Z sensors my SD 845 reaches 40-45 ALOT during light use; almost at idle being 36-40C, as high as 50C a couple of times, and 45-47C average during gaming opposite to my previous Honor Play which topped out at 42C after like 2 games of Pubg and ranges from 30-35C normal light use.
my antutu scores aren't suffering though my average is 295,000. (a bit higher than other SD845 phones that aren't "gaming" phones)
is it normal for SD 845? since it boosts to 2.8 GHZ
is it xiaomi pushing the SoC a bit to gain an edge? more heat due to more sustained boost for example.
faulty phone?
on the other side, my battery temps are low, like 28-30C idle, 30-32C light use and like 33-36C gaming & wirless charging
Have any ROG owners undervolted this device yet? What tool did you use, and most important, how's the result? I'm thinking of undervolting it by a notch for better battery life during normal use. Looking for a solution that doesn't conflict with the built-in ASUS modes and setting controls that I want to keep on the device.
Honestly can't justify it in 2021. I come from a LONG history of lowering voltages, but the phones have come a long way with battery conscious modes and other features that don't make the instability worth it now. It makes more sense to set more aggressive limitations than flat out reduce the amount of power the phone can access.
twistedumbrella said:
Honestly can't justify it in 2021. I come from a LONG history of lowering voltages, but the phones have come a long way with battery conscious modes and other features that don't make the instability worth it now. It makes more sense to set more aggressive limitations than flat out reduce the amount of power the phone can access.
Click to expand...
Click to collapse
Do you mean in terms of a single charge or in terms of the entire lifespan of the battery?
I tough less/optimal voltage means longer durability at least that's what they claim https://batteryuniversity.com/article/bu-808-how-to-prolong-lithium-based-batteries
Sure, undervolting can increase the lifespan of the battery. Never storing the device fully charged will also increase lifespan. Only charging between 20 and 80 will increase lifespan. There are hundreds of impractical things that will increase the lifespan, but then you need to stand by an outlet all day and only take one call between the hours of noon and three.
The thing you need to know before jumping into setting values is how Asus determined the default voltages. Nvidia, for example, sets theirs well over the efficient values. Samsung sets theirs practically right above the bare minimum. Too low and the device will short (power down) randomly. Too high and it will go supernova. Both will cause more damage than improvement.
If you do decide to modify, the best recommendation I could make is to shave off the values on the top end and leave the ones towards the bottom. At lower clock speeds, you aren't generating any real heat and there is little to gain from trying to reduce the power when it is already minimized.
Gpu undervolt you can use the app here for example
GitHub - libxzr/KonaBess: A GPU overclock & undervolt tool for sd865 855 888 765 690 750 780G 778G 8G1 8G2
A GPU overclock & undervolt tool for sd865 855 888 765 690 750 780G 778G 8G1 8G2 - GitHub - libxzr/KonaBess: A GPU overclock & undervolt tool for sd865 855 888 765 690 750 780G 778G 8G1 8G2
github.com
Surprised there isn't a magisk module for that. Repacking the entire kernel to find out the values were too high / low seems like a hassle.
ChrisFeiveel said:
Gpu undervolt you can use the app here for example
GitHub - libxzr/KonaBess: A GPU overclock & undervolt tool for sd865 855 888 765 690 750 780G 778G 8G1 8G2
A GPU overclock & undervolt tool for sd865 855 888 765 690 750 780G 778G 8G1 8G2 - GitHub - libxzr/KonaBess: A GPU overclock & undervolt tool for sd865 855 888 765 690 750 780G 778G 8G1 8G2
github.com
Click to expand...
Click to collapse
Thanks. Will take a look. Presumably it works on all 888's but have you tried it on the ROG5?
twistedumbrella said:
Sure, undervolting can increase the lifespan of the battery. Never storing the device fully charged will also increase lifespan. Only charging between 20 and 80 will increase lifespan. There are hundreds of impractical things that will increase the lifespan, but then you need to stand by an outlet all day and only take one call between the hours of noon and three.
The thing you need to know before jumping into setting values is how Asus determined the default voltages. Nvidia, for example, sets theirs well over the efficient values. Samsung sets theirs practically right above the bare minimum. Too low and the device will short (power down) randomly. Too high and it will go supernova. Both will cause more damage than improvement.
If you do decide to modify, the best recommendation I could make is to shave off the values on the top end and leave the ones towards the bottom. At lower clock speeds, you aren't generating any real heat and there is little to gain from trying to reduce the power when it is already minimized.
Click to expand...
Click to collapse
I hear you. I'm not going to jump into moding values, especially not on this phone. I wanted to drop the volts just slightly and see if if it gives better battery and less heat during normal use. I'll be the one to say it loud - the battery life of this device is not that impressive to be honest considering it packs whopping 6K mAh - even on an optimized & debloated device in durable mode with 5G off and display refresh rate kept low. You would expect a hungry device with the ROG5 specs but I suspect ASUS may have been a bit too aggressive with the tuning to squeeze the highest possible peak stats out of it vs the competition. Maybe they'll tweak it in future firmware updates..
Andrologic said:
Thanks. Will take a look. Presumably it works on all 888's but have you tried it on the ROG5?
Click to expand...
Click to collapse
No.
My rog 5 has been ordered but not yet delivered
I'm going a different route with it. If a kernel ever actually boots, I am trying to port an old governor that is a little more strict on when to ramp up.
Andrologic said:
Have any ROG owners undervolted this device yet? What tool did you use, and most important, how's the result? I'm thinking of undervolting it by a notch for better battery life during normal use. Looking for a solution that doesn't conflict with the built-in ASUS modes and setting controls that I want to keep on the device.
Click to expand...
Click to collapse
I used konabess, I overclocked my rog 5 to 855mhz and undervolted all clocks down by 2 levels and here are my antutu results. Very minor improvements on gpu and temp. But i definitely get longer sot now while gaming.