According to your Motherboard's Spec, your Motherboard has a D-SUB Video output on it: ASRock > A320M-DVS R3.0
According to CPU World, The Athlon 200GE has to Video controllers HDMI and DisplayPort: http://www.cpu-world.com/CPUs/Zen/AMD-Athlon%20200GE.html
According to this old Tom's Hardware, seems like VGA Port won't work with the 200GE: [SOLVED] - Can the athlon 200ge output toba vga monitor? | Tom's Hardware Forum .
If I were you, I would purchase an HDMI or DP to D-SUB Active Adapter for your monitor if the VGA Port has no signal or is shown disabled with the APU installed.
EDIT: It is possible Asrock installed a HDMI or DP Converter to D-Sub on the motherboard so that the D-Sub Video will have an output. Best to ask Asrock Suppport.
here is the answer asrock tech support:
"We have checked A320M-DVS R3.0(BIOS 1.70) with 2200GE for you, d-sub can work properly."
They pointed out another processor, I asked them a clarifying question on atlon