Bootcamp Windows 8.1 Overheating on Macbook Pro Mid 2014

Thank you for the suggestion, I had the same issue with a MacBook Pro 2015 and Windows 10.

In my case what I changed was the maximum processor state to 50% (it was at 100%) to avoid loss all the CPU performance and with that the temperature decreased to 60º (from 80º) and the noisy fan is gone, just the normal noise as when I am using OS X.

I will play a little bit more with the % of the max. proc. state to compare the temp vs computer performance, for now, what I detected is that Win10 takes a little bit more to start.

Thanks!

From my understanding, lets assume a cpu has 1.3ghz base and 2.6ghz turbo

100% maximum state = CPU can turboboost when applicable to 2.6ghz

99% state = Turboboost disabled. Maximum speed = 1.3ghz

50% state = half the 1.3ghz speed (600mhz?)

It would certainly help in keeping heat at bay, Ideally 99% would give just as dramatic improvement as 50% (as turboboost would be disabled at 99%)

My MacBook Pro Late-2011 with 1TB SSD and 16GB RAM upgrades had the Core1 CPU running above 90 degrees at idle (no apps loaded except Chrome) as shown in Macs Fan Control, when in Windows 10 on Bootcamp. No temperature issues in El Capitan. The fans in Bootcamp run at max (6,200RPM) all the time, but don't seem to reduce the temp. This is a common problem reported on many threads, but the advice here seems to work (perhaps, at some cost to performance, but I'm not worried by this since I'm not doing anything requiring huge performance).

I took thealgo's advice and set the maximum processor state to 99% for both battery and powered modes. Immediately temps dropped from 90C down to 50-59C , but the fans continued at max. I then used Macs Fan Control to set the fans to respond to the Core1 temperature sensor, coming on at 40 degrees and setting a max temp of 59 degrees C. This seems to work well. The case is suddenly cool enough to rest on my lap, and the Cores stay in the low 50 degrees C range. No noticeable effect on performance.

Thanks for this.

Okay, after a couple of hours trial, I still think I have a little way to go. I find that when the MBP goes to sleep in Bootcamp mode, the fan goes to max again. When I then wake it, the Core 1 processor is in the low 80s degrees, and after a few minutes it goes back to below 60 again. I'll have to do some fine tuning, and find out what's happening when it sleeps. But progress....

I have exactly same problem. It's very annoying. Please can you tell us a good solution to fix this problem?

Do you use a case for your MBP?

Yes i use speck case ( it has spaces for needed areas ) but there is totally perfect performance and cpu heat on yosemite. It's not about case. It must be about windows drivers comes with boot camp?

I have a Speck case with vents on a 13" 2012 MBP and it runs hotter on Windows than OSX. As a test, remove the case, and check how it behaves. OSX uses RAM to cache much more aggressively than Windows. Your game play still indicates that the temperature does rise.

It`s not beacuse of the case. I have the same problem with a macbook pro retina 15 late 2013 (I7 - 2.3 Ghz, 16 GB, 512 SSD, GT750M) with windows 8.1 on bootcamp. The temperature is higher than yosemite. It gets easily at 80 celsius in a demanding game, while on yosemite it barely reaches 55-60 under heavy load. It`s beacuse of windows, and these are the temperatures, I got the same average 55-60 in windows and 45 celsius in yosemite. I read on the forums and I tried evend with a cooler pad. But it doesn`t seem to be any improvement with lowering the temperature in windows.

I'm having the same problem, hasn't been overheating to the point of problems but I've noticed the fan needs to work much harder when I'm on Windows. Current install is 8.1 with all of the upgrades ++ Yosemite on brand new 15" MBP. Wondering if this additional stress will decrease the life of my machine.

any solution please?

Hello, I found finally the right solution. Go in Power plan-> advanced power setting -> processor power management -> minimum processor state and set it for around 5%, as default it should be 100% which causes the macbook to use its full capacity and as a result heat up excessively. Hope this helps

Thanks it helped for my windows 10 heat problem. I went from 60 degrees to 45, any tips ?