Just finished my new build, I haven't install windows yet though and the side panels for the case are not on yet, I am currently in the bios and the CPU temp is 52 °C and the system temp is around 36°C, is this okay?
The build is an amd a10-5800k with stock cooler, gigabyte F2A75M-HD2 and one case fan, 4gb of ram.
Those temps are fine for a PC on load but seems a bit high for just being the BIOS.
Finish everything up and look at your temps in Windows using CoreTemp, CPU-Z, or a similar program. See how hot you're running with everything together. With the side panel off you won't get an accurate assessment.