Question Intel 400 and 500 Series Mobos Incompatible With DVI Output Or Buggy UEFI?

[AtomikDjakareh_32G]

MSI B560M-A PRO, AMD Radeon RX 550 640SP, Intel Core i3-10105F CPU.

Noticed that If I use the DVI-D cable, the motherboard will sometimes refuse to POST. VGA LED turns solid white.
If I do get a video output through DVI, the motherboard takes frighteningly longer to POST.

However, if I switch to HDMI... the issue disappears, system POSTs almost instantly.
I even restarted the machine several times to test this, in all attempts, the motherboard successfully detects my GPU and boots to Windows fine.

 

[Karadjgne]

Most likely the DVI-D cable is bunk, it's shorting or dropping a connection, which isn't uncommon with cheaper cables or the ones you get with monitors. Linus did a video on such, testing a myriad of cables he had laying about and the results were everything from full pass to almost complete fails on brand new cables, with many of the cables barely making the stats rated for.

 

[AtomikDjakareh_32G]

Most likely the DVI-D cable is bunk, it's shorting or dropping a connection, which isn't uncommon with cheaper cables or the ones you get with monitors. Linus did a video on such, testing a myriad of cables he had laying about and the results were everything from full pass to almost complete fails on brand new cables, with many of the cables barely making the stats rated for.

But the same cable worked fine on my earlier mobo and the same GPU... (An H310 mobo).