Hello dude. The bios supports the 3 kinds of memories, thats why in Polaris it asks you for all the 3 kinds of timings mod. Click yes to all and you will have bios mod. Mine is the same. I have samsung memory but it asks me also for Hynix and Micron timings mod.
With samsung memory you have 3 options ( thats the first message, uber mix 3.1 and if you clock no , it asks you if you want uber mix 3.2 and if you hit again no, you get 3.3)
maan these XFXs of yours are beasts. 33MHs for 66watts…