cpu fan

I recently got a Clevo P870TM1 with a dead cpu fan and been trying to fix it for a while. I already tried the port with another fan and it worked so the problem is the fan itself. The fan looks good, it's not stuck or anything, spins fast if I move it myself. What could be the problem or is...

I am trying to get a fan to upgrade a fanless pc that overheats in summer by adding a fan. I found this picture of the motherboard, does anyone know what this 4 pin cpu fan plug type is called?