Optiplex 990 BIOS feature - Multi-Display

If I have multi-display enabled, will that enable me to use KVM when using an external video card? I'm planning to begin provisioning vPro pc's in my organization next month, so I was curious if anyone has encountered this scenario.
All of the pc's are ordered with an AMD card, so if I could enable the Integrated Intel Graphics for use with AMT KVM, that would be great.