I'm toasted. My long-awaited purchase disappoints me extremely.
I'm a quietness-freak. One of the main reasons to get Macbook Pro 15" 2.8, R9 M370X was Apple's tendency to keep hardware hot but quiet, and it's speakers.
Despite that the fans on it are mad. While you're using CPU only it's about "ok", but I had to undervolt and limit the TDP to ~35W to make the noise about reasonable. Speeds are down. Temps - 50-60C on idle, up to 80-85 on load.
When R9 M370X is involved performing even lightest things it goes insane though. GPU may simply be active but doing nothing, I play YT video and fans ramp up to 50% while CPU is no more than 70C and GPU ~65C.
So, 1-st problem - fans start to be much more aggressive when dGPU is on. When I do something (even lightest) in Cinema 4D it may be ~65C CPU and ~60 GPU it goes full blast. Than at least a minute after I stopped working it goes on before calming down. Even when it's 55C already it still goes.
So, second - fan speeds are much excessive and aren't adequate to temps.
Than I tried MacsFanControl (TG Pro, doesn't matter) to lower the speeds. Despite I managed to get ~70-80C on load a minute later CPU went 800ghz flat! And nothing makes it speed up, I have to give the control back to system, it spins 6000rpm for a couple of minutes and than recovers. In Windows it's the same.
So, third problem - inadequate and unavoidable artificial throttling.
I'm getting mad. I can't bare this noise. Even lightest photo editing in C1 makes it shout out loud despite it's pretty cool, not speaking of C4D which is my main tool.
Fans are clean, paste is new (MX-4) Is this a normal for this model? Does 2014 GT 750M does the same? How to f*** make it work silently, or at least reasonably?
Help me please. It doesn't give the performance nor comfort I bought it for, I'm so sad...