I have (3) RX 470, with modified vbios. when I only have two cards, they worked fine. after adding the thrid card, the rig keeps rebooting. Is there anyway I can find what causes the rebooting? The thrid card is the MSI one. Let me try lower the core and see if it helps. Thanks.
Is the this the error that causes reboot?
[ 15.626434] [drm] Cannot find any crtc or sizes