just to say the ASRock B85 Anniversary, is not good for 6 gpu's, 5 is ok but not six
the computer is not stable i always have trouble with it, got crash at lease 1 time a week (not overclocking probleme)
computer freeze or half freeze , you can acces some stuff but got error's or program won't load and some are freeze)
specially not compatible with 6 x r9 380
not able to get in windows after you install the last driver, if you do, you get hard disk error's and windows service what crashed
i tried win7 the worst one never got in windows after 6 graphics drivers loaded, and win 10
it s actually the last pci-e connector ho makes the troubles (is it share with the sata's connector?)
i switched the gpu's with my other ring, 2x r9380 + 4x r9 270, it s working under win 10 but it s not stable
sometime after crash i m not able to boot again, i have to restart the computer with the last one unpluged, and reboot again with the last one pluged