First of all, I know there are many discussions about this already so I apologize for adding another to the mix. I am not a stranger to AMD processors, as I have previously completed a build with a Threadripper 1950x. My Threadripper build idles at about 33° C with the Corsair H115i Platinum AIO cooler installed. My build with the 3700x is as follows:
Ryzen 7 3700x cpu
Asus TUF Gaming x570-plus motherboard
Wraith Prism CPU cooler
MSI Radeon RX580 gpu
Samsung 970 Evo NVME ssd
Corsair Vengeance DDR4 3200 ram
My idle temperature is currently about 70° C with a voltage sitting around 1.1 V according to Ryzen Master. Meanwhile, CPU-Z is reporting my voltages as fluctuating between 0.9 V and 1.4 V, but mostly remaining near 1.0 V (I'm making sure not to run CPU-Z and Ryzen Master simultaneously). I am using the latest chipset drivers I could find from AMD as well as Ryzen Balanced Power plan. It is currently about 82° F (28° C) where the computer is sitting.
I'm concerned that these temperatures are abnormally high, and would really appreciate any insight that the experts amongst us can offer.
EDIT: I removed the cpu cooler, reapplied thermal paste, and then mounted it again. My idle temperature is now hovering around 38-40° C. My bad. I have to say that I'm not a huge fan of the mounting system for these coolers, but what can you do. Thanks to dacq for telling me to disable PBO, and I hope others find this post helpful!