Why is the computer crooked?

Question

Iron

Hello, such a problem ...
I decided to upgrade the hardware, installed the Chinese mother Kllisre X79 and the rx570 video card, and also the cougar ste 600 block.

After all the replacements, the computer did not turn on immediately, I press the power button and only after 5 seconds the computer starts up with the American Megatrends picture and post code a2, then after a few seconds the system starts up and everything works. Today, the hard drive suddenly disappeared, why sin?

Answer 1

As it should be, Chinese mothers are famous for their glitches.
Look for a forum of owners of such mothers, perhaps there is a solution or a fixed BIOS.
It should be understood that some Chinese mothers, in principle, do not have a fully working BIOS, in each version it is buggy in different ways.

Answer 2

Chinese mothers are not credible. Perhaps due to problems with her.