50 - 60 C is not bad for a CPU if its under load

Usually the MB BIOS has the ability to set MB fans based on hardware temps or fixed RPM
 
I have no idea what the Mac has to offer in BIOS
 
 
I've also never had the opportunity to use a venuz manitz egpu enclosure - this may also present some issues
 
This connects by Thunderbolt ?
 

Try this... https://www.makeuseof.com/tag/reset-macs-smc-pram/

Hmm.
 
Make sure your macbook pro is plugged into the wall via ac cable, and make sure windows power options is set to high performance.

The thing is the setup worked great for a few months. I actually was super happy with it. Of course it does not have the same power as a real dekstop system but well i travel a lot and it was pretty nice to take my macbook with me and when i got home just put one cable and i can play even the latest games and swich very easy between mac os and windows. Also i work from home and need mac os, so for me it makes a lot of sense this way. I really hope apple will support this more but well unfortunatly they suck more evey year.
 
And yes, the 2080 ti is still way overpowered for my current setup. My orignal plan was a desktop pc sometime later this year but if i get it fixed i dont really need it.
 
By the way this was my first benchmark result when it worked in heaven 3440*1440: https://imgur.com/kbGlO0Z (95 average fps)
 
 
 
For the problem:
I am pretty sure its the cpu. (sensor issue or fan issue or dirt, cyprus where i live at the moment is super dusty)
 
The last hours i did a lot of tests under windows and mac os. Basically if the computer is freshly started i can play for around 30 seconds with 100+fps.
While monitoring i can see the that my framerate goes down the same time as my cpu starts clocking only at 800mhz. Before up to 3,6 ghz.
 
I can also do the same with just doing a cpu benchmark. After a few seconds the temp spikes to 80 degrees (only visible in monitoring) and then instantly changes to around 60 and stays there. (clock at 800mhz) After that it only rarly changes back and if only for 1-2 seconds.
 
Under Mac OS, when benchmarking the cpu spikes instantly into the 90 range and stays there but the fans dont go max speed. It is very strange.
 
 

Yves81
The thing is the setup worked great for a few months. I actually was super happy with it. Of course it does not have the same power as a real dekstop system but well i travel a lot and it was pretty nice to take my macbook with me and when i got home just put one cable and i can play even the latest games and swich very easy between mac os and windows. Also i work from home and need mac os, so for me it makes a lot of sense this way. I really hope apple will support this more but well unfortunatly they suck more evey year.
 
And yes, the 2080 ti is still way overpowered for my current setup. My orignal plan was a desktop pc sometime later this year but if i get it fixed i dont really need it.
 
By the way this was my first benchmark result when it worked in heaven 3440*1440:  (95 average fps)
 
 
 
For the problem:
I am pretty sure its the cpu. (sensor issue or fan issue or dirt, cyprus where i live at the moment is super dusty)
 
The last hours i did a lot of tests under windows and mac os. Basically if the computer is freshly started i can play for around 30 seconds with 100+fps.
While monitoring i can see the that my framerate goes down the same time as my cpu starts clocking only at 800mhz. Before up to 3,6 ghz.
 
I can also do the same with just doing a cpu benchmark. After a few seconds the temp spikes to 80 degrees (only visible in monitoring) and then instantly changes to around 60 and stays there. (clock at 800mhz) After that it only rarly changes back and if only for 1-2 seconds.
 
Under Mac OS, when benchmarking the cpu spikes instantly into the 90 range and stays there but the fans dont go max speed. It is very strange.
 
 

I hear you man, gotta do what you gotta do. And it probably could be the cpu which is causing something. Maybe you were lucky the first month and now you finally stressed out the cpu. But i dont know if directly correlates to the gpu. So I must have missed the part where you put the macbook specs down sorry about that. Well you have a 4 core with 16g ddr3 and your doing some major things with that laptop and everyone is telling me you need a 9900k to really pair with this card. Why i didnt think its the cpu is because i have a 8700k on a z370 mb with 16g 3200 16cl memory. When playing wow for example (almost intense like dota i would say), at 1080p in the town of Dolanaar the total cpu usage % is high 20's low 30's while walking around and not using ustilizing all the memory. Checking now as we speak, windowed mode. Everything is stock settings cpu (except for xmp profile for memory) and gpu since im using a 1080p tv to check. I would try not using the monitor or using 1080p to see if anything changes. Your trying to push 3440x1440 right? Thought cpu had nothing to do with pushing that res out but yeah it could be spent if you cant run a cpu bench properly and you have fan issues. Sorry bout the situation good luck. 

Yves81
Ok i got it, in case anyone ever has the same problem. It is just dirt. I cleaned my slits for airflow as good as i could with a toothpick, used a vacuum cleaner and it got much better. Need to buy a special screwdriver tomorrow to get into the macbook pro and clean everything right. :)
 
It is a strange problem because it does not overheat but goes down to 800 mhz right away. Thanks everyone for helping.

  It was thermal throttling because of the lack of air flow.  Glad it's working again.

Sajin
Thermal throttling without hitting tjmax? Hmm. Ok.

Ok smarty.  What is it that caused the down clocking even though once the OP cleared out the dust/debris is when it went back to normal?  Why don't you respond professionally as a forum moderator to what you think happened instead of responding immaturely.

Don't know. He said things got much better. As far as we know all he could be talking about is his temps since he said he seen them in the 80-90 range which is ok for a laptop as long as he isn't hitting the tjmax which would cause throttling.

Must have been a doozy of a dust monster in there/.......

Is your battery dead?