Quote from: kyogi14 on October 01, 2017, 12:43:50 AM

Quote from: melloyellow on September 30, 2017, 09:03:21 PM

Quote from: cryptoinvestor_x on September 30, 2017, 07:45:17 PM

Quote from: l1xx on September 30, 2017, 07:25:03 PM

I made it work on 5 it seems : http://prntscr.com/grm9ed

upped the virtual ram to 80. Disabled On board graphics , connected Monitor with HDMI to GPU0.
Without Team Viewer going the hashrate is slightly higher - around 10500.
Only 4 cards accepted some change on the slider. The 5th had HBCC on, and on/off was not doing anything. On the 6th one HBCC was disabled. It was not even possible to enable it.

Sadly ... that lasted only until the first restart.
After it - we are back to 4. And I can't get em to apply any HBCC settings on at least 3 cards.

I wasn't even able to boot with 6 Vega as it would BSOD on driver install for the 6th card. I could get 5 hashing but similar results as you. 5th card has an HBCC slider but changes had no effect.

I have the same situation. I can't get HBCC to activate on more than 4 cards. The sliders work for all but there's no effect for anything over 4 cards.

I see this same issue even if the other cards are not vega, as soon as I add a 5th amd card I lose hbcc control on all. I wonder if it requires more ram or virtual memory? Im running 2x Vega 56 and 2x580 and shits the bed when adding a 470 to the mix. I have 16gb ram and 48gb virtual. Hbcc would display as on, but hash rates show its not really on.

Same problem here. Thought is was due to adding the Vega as latest GPU to my rig with 9 GPUs. Removed all the other GPUs and the Vega gets 1770H/s when HBCC activated. Adding the other cards one by one after the 4th the Vega doesn't perform as before and even the AMD Blockchain Driver starts crashing.
Hope anybody has an idea to fix this or we need to wait for a driver update.