I have a Ryzen 1700X in an ASUS prime x370 PRO motherboard (default settings, untouched BIOS) with 16 GB of RAM and a Coolermaster 450W PSU.
The CPU cooler is a Bequiet! pure rock 150 W TDP cooler, applied properly with thermal paste and tightened to the CPU bracket.
The cpu shoots up to 50+ degrees Celsius even in the BIOS, let alone when idle. Under load it goes up easily to around 75C.
AMD Ryzen master reports rarely temperatures below 50 C. After boot it starts from around 45 and then sets around 50-55 when idle. Room temperature around 19-20C currently.
CPU-z reports core voltage around 1.428 V, so do a few other hardware monitor tools and the BIOS monitor as well. Again, this is the stock BIOS without any changes.
The BIOS is the latest version as of writing this post.
Are these normal temperatures for the 1700X? They seem quite high for me, being idle.