Only 5 GPUs working on a 6xNvidia rig 
Hi,

would appreciate support, I am running this version for Monero on 3 rigs, with 6 GPUs on each; unfortunately, xmrig uses only 5 GPU per rig. 

Also, I see my CPU in the list (CPU+5GPUs) when starting work.

So my questions are:
- is it possible to make all 6 work?
- is it possible to disable CPU from working?

Thanks a lot in advance!