Let's check out the AMD A6 APU at http://www.cpu-world.com/CPUs/Bulldozer/AMD-A6-Series%20A6-4400M.html
So yes, it varies depending on demand from 2700 to 3200 MHz. So that's normal.
Since it's an APU, well it can be normal to see a busy CPU. So far so good.
As to the fan, very few machines can run without fans. So I don't see the issue yet.
I have resource monitor open
CPU is bouncing between 70-100% Maximum frequency is 99-115%
memory usage is at around 34%
running windows 10
system has amd a6 4400apu with radeon hd graphics 2.70 ghz
8 gb ram
64 bit ops system
It was doing before windows upgrade too
fan and disc always seems to be running...