I managed to get the cores to 5ghz and uncore to 4.8ghz after delidding and replacing the TIM under the IHS with TG Conductonaut Extreme, max temps i’ve seen in heavy all core OCCT load and sustained is 56-57C.
I’m not running a direct die setup, this is with the IHS put back on after replacing the tim, i use TG Duronaut on top of the IHS and my cooler is an Arctic Liquid Freezer III Pro.
The current bottleneck i have is the micron a die memory that refuses to work at a higher than 2700mhz speed even on an Asus Apex motherboard