Quote from: rafinirt on September 26, 2017, 05:39:05 PM

The effect on xmr-stak-amd is 1300H/S vs 1900H/S, big deal.. Sad

Yup, exactly that. I am losing 1200H because 2 cards won't enable HBCC. I mean not the end of the world but I hate having problems I cannot solve.

My next move is likely a clean install of Windows.

Given I tried OLDComer's power table mod and it took perfectly on 4/6 cards. The same 2 cards that I cannot enable HBCC on simply ignore it. The registry section for those 2 cards has the soft power table entry and it is correct. Yet those 2 cards just reset to AMD Stock settings when I hit reset in Wattman while the other 4 jump to OLDComer's settings.

Clearly this is a clue or related to the same HBCC problem (or an annoying coincidence).

So I am thinking this problem is solvable. I am thinking Windows has done something wrong with the card.