Hi,
 
My computer is actually not working because I did a mistake.
I unplugged the ram while the computer was running.
What are the repercussions of that on hardware components ?  
(Got a geforce1070ti, an AMD rizen7, asrock a320m )

Hello,  
Most probably a fried RAM module, or a fried motherboard, or both.  
Harm can even be done to the memory module if you remove the RAM while the PC is OFF, but still on standby or in sleep mode.
So removing the module while the PC is working does not leaves high hopes.