Overheating Mecool M8s Pro L and Pro + (and others ?) - Options ???

[P.X]

this app - https://play.google.com/store/apps/d...n.cputemppure# shows 43C, which temp should I trust?

Trust CPU Temperature (+Pure)

Install Stress CPU app and run, then watch the temp rise in CPU Temp > Changing Curve ...

[P.X]

ok and where have you bought it ?

In the UK I bought on The Bay UK - Item number 322989226698 - I got free/included postage - Arrived next day - Great service.
This seller is best for 2 or more - Example: Order 2x Temp45C and add Note. Please supply 1x 45C and 1x 50C - Open Circuit at Room Temp
Cheaper (slower) from China, or Faster US if in US !!

[diabolyk]

i'm in france lol

but which one you think is better ? 45 ? 50?

[artouiros]

Trust CPU Temperature (+Pure)

Install Stress CPU app and run, then watch the temp rise in CPU Temp > Changing Curve ...

Don't really wanna run stress test, I'm afraid of it. But I did noticed that temps are rising to 55-58C while watching 720p movie (no reason for me to watch 1080, my TV only supports 720p). But my ambient temperature is now around 23 degree, summer it will be around 28-30, really afraid. This box is so small.. my old Minix X6 has doubled dimenision, why the hell they do such little boxes. Any way to just downclock CPU? Because I only need soft navigation and 720p playblack, maybe downcloking to 1Gz would lower the temps?

[P.X]

i'm in france lol

but which one you think is better ? 45 ? 50?

See notes above.

Depends on your preferences, if you have not slowed the fan with a resistor then you don't want it on much because of noise so use 55C.
If you have high ambient temp and quiet fan maybe use 50C
Normal ambient temp and a slow quiet fan 45C
But it is all your choice - Would buy a spread of temps if you can get them from a seller like the one I used, he only charges a small amount extra for each extra one as postage and fees are his biggest expense. Check seller first with a message ...

Switches have quite wide manufacturing tolerances too at +/- 5C.
My 45C switches at 47.5 and a 50C may also switch at a similar temp though all mine switch at slightly more than rated nominal.

[P.X]

Also ....

You could use the un-switched UART 3.3V with these switches and no resistor if you have a nice quiet fan @ 3.3V

or the un-switched 5V from the input socket (nice to get at on the top side of the board) and a resistor, and a KSD9700

Lots of choices and options ...

[diabolyk]

I should buy a Normaly Closed or Normaly Opened ?
Normally closed I think no ?

[P.X]

Normally Open - Open at normal Temperature
Should have a little Kanji Symbol (crossed-tower) on it.


Make a note specifically to seller saying Open Circuit at room temp. Etc.

see post

[diabolyk]

ok so it will close when temp is reached ???

[P.X]

Yes

[shuot]

Hi, I added a 80mm fan @ 2000 rpm tied in it's delivery cardboard box under my M8S Pro L.
CPU temp shutdown is 20/25 °C playing a 1080 6500kbps video (35 to 37 in idle, 42 to 46 playing 6500 kbps 1080mkv, ambiant temp 21°C. Was 45 to 50 in idle and 65 to 70 playing the video)
The fan is plugged in on of the Mecool USB ports.

This solution is very original and doesn't seem to require any modification of the M8S Pro L itself.

How does cost the fan and the required USB plug?

It's a little unfortunate that it remove one USB port. Any other means to power the fan?

Is this fan very noisy?

And finally, how a real box could be built? (instead of using the original packaging).

Thanks!

[Novato]

Hi P.X , I have a Mecool M8S Pro and it easily comes in at 68° Celsius with non-stressful tasks and in games ranging from 75° to 80° Celsius.I really hate the idea of sticking my pretty little box, it corrodes my heart.I've seen some videos including yours, which are great!But as I am not English-speaking I always have some doubts.



1. Do the use of these Coolers spend any significant energy?I used a Cooler 120x120x25mm V12 PC source below my box, but because it was so ugly in my setup I stopped use, but it kept the temperature on between 50° and 60° Celsius, reduced the temperature about 10°.



2 ° Is there another alternative to not have to pierce my beautiful little box and to still keep a cooler in there?I've been researching and found a cooler for Raspbarry Pi3 with dimensions 30x30x7mm and I thought would it fit everything in there without having to drill a hole in the lid of my M8S Pro. Its possible?



3 ° If I follow in his footsteps, I mean without having to cut the lid of the box, I will need a resistor, I believe, to reduce the rotation of the fan and make it less noisy. Can it be any 5v resistor or does it need to be a specific one?If yes can you speak in friendly words to noobs?



4 ° At the time of soldering I realized that in this video you used a different layout of other videos of yours, which the reason for change position of the welding place?I'm not sure if my handset without the L will be the same model of board, well hope it is, if it is different could you guide me?

[P.X]

Hi Novato,

That looks like the fan I used.
It will fit inside no problem just use some double sided foam to keep it a little away from the lid to allow air flow.
It will probably lift the lid slightly, and I remove the chrome ring to allow a little more ventilation.
I would use a 33, 50 or 62 Ohm resistor to slow it down from 5V speed. Bigger is slower and more silent but as it is in a box with no extra holes it may need to be a 33 for more effect.

"After" solder points are 5V switched supply. Before are constant 3.3V.

Careful with the tiny resistor when soldering to it ...
There is USB 5V underneath the board that is safer to use but requires board removal.
Your M8S Pro will probably have a slightly different layout so you will have to find the right resistor or use the underside USB pin ...
Looking at the image in Trebor's thread it looks very similar with a resistor in the same place so you may be lucky!

[Novato]

Hi Novato,

That looks like the fan I used.
It will fit inside no problem just use some double sided foam to keep it a little away from the lid to allow air flow.
It will probably lift the lid slightly, and I remove the chrome ring to allow a little more ventilation.
I would use a 33, 50 or 62 Ohm resistor to slow it down from 5V speed. Bigger is slower and more silent but as it is in a box with no extra holes it may need to be a 33 for more effect.

"After" solder points are 5V switched supply. Before are constant 3.3V.

Careful with the tiny resistor when soldering to it ...
There is USB 5V underneath the board that is safer to use but requires board removal.
Your M8S Pro will probably have a slightly different layout so you will have to find the right resistor or use the underside USB pin ...
Looking at the image in Trebor's thread it looks very similar with a resistor in the same place so you may be lucky!

Hi, P.X Thank you very much for replying. I'll try to buy the fan, it costs cheap but freight will probably cost about 6 units of that fan. Once I have it in hand, I'll open my box and if you have any questions put here. When I do the process I will also show how.

[P.X]

Hi, P.X Thank you very much for replying. I'll try to buy the fan, it costs cheap but freight will probably cost about 6 units of that fan. Once I have it in hand, I'll open my box and if you have any questions put here. When I do the process I will also show how.

I got that fan posted from china for $1.25 total, I think it should be the same worldwide included post found on E bay dot com
Look forward to your results.