The ROG STRIX Z390-E has dual onboard M.2 heatsink and also 1 x M.2_FAN connector.
Questions:
1) It’s more efficient to setup the M.2 fan on top of the exiting on board heatsink
https://www.asus.com/us/Motherboards/ROG-STRIX-X370-F-GAMING/3D-Printing/ ? Or they exclude each other?
2) In the printscreen attached, the spots marked with red arrows are designed for m.2 fan mount?
3) Why are the original on board heatsink more efficient than aftermarket products
https://www.amazon.com/NVMe-Cooler-Heatsinks-Powerful-Cooling/dp/B07DGK8PWR ? I guess that they have on board screws for better mount. Otherwise, I would be better off with
https://www.asus.com/Motherboards/TUF-Z390-PLUS-GAMING/, with only one heatsink.
4)Am I missing something, or this mobo is the only one from ATX z390 series, with dual m2. heatsink? So far I've noticed that ASUS TUF Z390-Plus Gaming, ASUS Prime Z390-A has a single on board m.2 heatsink, and ROG STRIX Z390-F GAMING, ROG STRIX Z390-H GAMING has doesn’t have at all.
Thank you!