That seems reasonable, given the ambient + the Quiet setting. My 8350 is running at 47 C with the room at 24 C. This is running 100% with Prime 95, on an H100i cooler. The fans are running at about 1530 RPM, controlled by the BIOS. I gave up on Link software.
Note that this was with my 2 GPUs at idle. They are normally running flat out doing Prime-related factoring work. With a single GTX 580 running at 98% usage, the CPU goes up to 50-51 C, and the radiator fans rev up to 1720-1800 RPM.