So it's not only my problem? Hi I have just assembled a 1800x ryzen system and even if the Boinc benchmark said it's a litlte faster than my i5 3570k, real results are awful.
On project 321 the average time on the 3570k is 55-56.000 and the average on the Ryzen is over 90.000 Secs Run time and SOB project have the same problem with 150.000 vs 219.000 run time secs
The System is OK, temperatures are low thanks to the Noctua NH-D15. My motherboard is an Asrock x370 Taichi and don't have any problem, Ram are Ok, not the fastest around, just 2400 MHz but they worked fine on the 6600k I sold to buy the Ryzen.
This results are with using 50% CPU of both system, there's no OC. Now I will try to switch from Windows 10 to Linux just to see if there is an improvement or soon I'll sell this stupid CPU and go back to Intel. I had buy this system only for use it with Boinc and F@H and I'm not happy in both the projects, with my 980ti to have the same point that I had on the Intel system I have to left over 50 of the CPU free or PPD fall down fast.