Most likely the board has a very old bios that doesn't understand how to utilize new UEFI style components. Check for an updated BIOS on the motherboard manufacturers site. Also check the BIOS for the option to boot from either iGPU or PEG(there isn't a disable option but which to use usually). Choose PEG if it exists.
If there isn't an updated BIOS, if you can, install the GPU into a friend's PC to verify that it isn't DOA.
thanks for your answer.
I tried it with both IGP and PEG but nothing happens. The Board has an
old Bios, but according to the description the actual Bios is not for
my processor because it needs an Ivy architecture. Some people wrote
that if you make an upgrade
with that new Bios you can get corrupted Bios.
I dont know what to do ?
I also waiting for a answer from MSI .
If there isn't an updated BIOS from the manufacturer then you are kind of stuck. Unfortunately and fortunately tech keeps advancing at a rapid rate. Hardware from 5 years ago isn't guaranteed to be compatible with current parts bring offered. Technically the motherboard would probably work if there was a bios that was semi recent. The board just doesn't have the instruction set to understand the new improved hardware so it has no idea what to do with it. In simple terms.