Seems like a good advice, when all is checked, card (preferably AMD and Nvidia), cable and screen, there is one possibillity left, MB' and that could potentially turn up in BIOS. :iagree:
What is true imm only, not usual from what I have seen :flower:
Such faults does not make it to the BIOS. In 'example execution' it should. Now BIOS is 'example of raw execution only' and so unless reported back, to an aware BIOS, would be unaware of any flaws present in the circuit.
The last test should be, in all due respect, to resignate and try a new motherboard, that is, unless a miracle is in the making