About a couple of week ago  i have noted some strange irregular fan operation ,it have running at max speed for about twenty minute without any reason  and on the next boot appear this message

Running the diagnostic appear sometimes some error on the Cpu fan,

so i have  replaced the Cpu Fan and Gpu fan whit item with same part number of old ones.

Now the diagnostic whit two new fan  give me the two errors below

I have already updated the bios..

How can i solve this issue?