First I installed TR4-CPU by user's manual: insert CPU and tights each socket screw to the stop in order 1 > 2 > 3. First 1 screw to the stop, then 2, then 3 (like on AMD official's video:
https://youtu.be/d0IbxYyN1Dg)
First time did not working all DIMMs of the right of CPU socket. I re-installd CPU, now did not work all DIMMs of the left (3 short beeps and shutdown).
At fifth time I installd CPU not by user's manual: I tightd each screw for a little so that there is no distortion of CPU. Little tight 1 > little tigt 2 > little tight 3 > little tight 1 ... >2 > ...3.
As result, system works fine.
It is normal for TR4 CPU?