just to be sure some questions. Don´t want to disassemble my build before having more informations. I have high PCH-temps as well.
You removed the white cover where the little cutouts for the LED are in? Then you removed the complete "monitor" (yellow in my pic1, red ist the connector)?
After that, on your pic, there is still another white cover (where your cooler sits on), is this original on board? is this a heatspreder or so ? Does this cover also touch other chips around the PCH (see pic2)? Or is this cover made by yourself?
How did you solve the cooling for the nmv on the lower leeft corner in your pic?
Would be graet if you still know something about that, and have time to give me some hints.
Thanx in advance!!!