A few concerns:
1) Core temps you're referring to, is that actually being monitored for the area that is being actively cooled? How are you viewing the monitored temps?
2) Changing to another fan (silicon isolators..I did try)...I agree, the fan, that may be a quick solution. Aside from also changing the bracket o another material as I describe, the thin aluminim transfers energy easily to the mainframe (for example, pluck the bracket, it rings) BUT a) what is the max allowable mA for the fan header?, I'm concerned changing to a Noctua fan or other fan that draws more current could place too high of a load on the designed circuit. For all I know, that fan used is at the max allowable draw safe limit.
3) which fans are you specifically recommending or have attempted?
Thanks for your response.
Thermal coupler attached to external multimeter and also IR heatgun taken at various locations right after removing lid, both pre and post mod
I think any given cpu fan will have a max draw as part of the spec so can’t see one drawing too much.... but I don’t know that for certain
I did mine over a year ago and it’s worked great since, so I’m kind of past worrying about it these days lol