About the DELL 760XS Server

Hello,

I have a Dell 760xs server, which currently has 5 stock fans installed and a total of 6 fan sockets. In this state, when we install a GPU, the fans start running at 100%. However, when we remove the GPU, they run at 25% power.

My question is: if we connect a 6th fan to the empty socket, will the fan speeds balance out? (By the way, the empty socket requires a high-performance fan.)