[FiiO M17] Dual ES9038PRO, dual THXAAA-788+, dual power supplies, 9200mAh battery, 2 volume control modes
Aug 27, 2022 at 4:45 AM Post #4,411 of 5,698
@newworld666 check only "soc" temperature when operating it should reach much higher levels than indicators in other parts. Basically I think it is ok when soc operating temperature is ~70c. In theory it can reach up to 100-110c, because processor is the most heat emmiting part in player. So i think there is nothing wrong with high "soc" temp. The most dangerous situation would be high temp in battery, but in my case battery temp is always ~45c in average.
 
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Aug 27, 2022 at 5:03 AM Post #4,412 of 5,698
@newworld666 check only "soc" temperature when operating it should reach much higher levels than than indicators if other parts. Basically I think it is ok when soc operating temperature is ~70c. In theory it can reach up to 100-110c, because processor is the most heat emmiting part in player. So i think there nothing wrong with high "soc" temp. The most dangerous situation would be high temp of battery, but in my case battery temp is always ~45c in average.
Ok
This soc temp is fixed at 80°C without or with fan active (level 1) when one playing some Qobuz music for more than one hour now... while battery is at 44.0°C and becoming 41°C after a while with fan set to 1 (but it shouldn't be used at all in the enhanced audio mode)
 
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Aug 27, 2022 at 5:08 AM Post #4,413 of 5,698
This temperature business must be a matter of calibration?
 
Aug 28, 2022 at 12:21 PM Post #4,414 of 5,698
This temperature business must be a matter of calibration?
There's also the silicon lottery factor, and there will often be small deviations in the temperature, as perfect uniformity is hard to achieve during chip manufacturing. That said, the difference should not be more than a few degrees.
 
Aug 28, 2022 at 3:08 PM Post #4,415 of 5,698
I had so far not a single time the fan switched on....also now in summer not....und not a single time really warm ...i do not stream my music ...i play my music only
from my memory card 😉

NOMAX
 
Aug 29, 2022 at 4:30 AM Post #4,416 of 5,698
I had so far not a single time the fan switched on....also now in summer not....und not a single time really warm ...i do not stream my music ...i play my music only
from my memory card 😉

NOMAX
The higher temps are mainly due to the processing of HiRes files in the DAC etc etc.
 
Aug 29, 2022 at 4:38 AM Post #4,417 of 5,698
On my side .. the soc temp throgh AIDA64 seems to be totally fixed to 80°C .. nothing seems to change this temp.
 
Aug 29, 2022 at 12:09 PM Post #4,418 of 5,698
I also started measuring the temperature of my M17. This measurement was taken after an hour and a half of listening to Qobuz with my Focal MG headphones, the Fiio M17 was in enhanced mode, on its base and the fan on at speed two. I remember that I changed the original fan with a quieter one.

IMG_1711.jpg
 
Aug 29, 2022 at 3:34 PM Post #4,420 of 5,698
Enhanced over head ear mode, 95/120, 4.4mm -> Black Dragon -> LCD2 2021 Closed back, > 1h, fan at 1. Seems good.
Could you try without fan? I'm quite curious with no active cooling the results
 
Aug 30, 2022 at 4:05 AM Post #4,421 of 5,698
No measurements here I'm just enjoying the music 😏😏
 

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Aug 31, 2022 at 4:14 AM Post #4,425 of 5,698

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