Great job man, good overlock.
You can change PLL OC voltage to drop the temperatures, but seems like no one can confirm if they are for real.https://imgur.com/a/W7q2j
Here are mines after prime test at 4.8ghz. 5ghz was only few degrees higher, but I'm affraid they are not real.
Using Kraken too, 3 fans instake 1 exhaust.