OK, since I am wondering if we are talking about a native Mac vs a PC box running Mac OS (has happened before)
I have the Mac Pro (mid 2012) 5.1 Apple manufactured computer running OS 10.12.6 (beta 16G24b) with native Radeon 5770 1 GB video.
The System Profiler does not see anything but the 5770. So I am guessing the 1050 video card is not really directly compatible.
When I first got the card I had already installed the NVIDIA CUDA System Preference. I installed the card after removing the 5770. Powered Mac Pro on, nothing.
Had an older Radeon card from my older Mac Pro (1.1 2006) I put into the next PCIE slot up, computer booted, only the Radeon card seen.
Shut down, removed cards. Installed the 5770 in first slot, the 1050 into the second slot (an allowed configuration). Still only he 5770 was available.
Went through all the stuff here, thanks again.
Checked Apple's communities, verified that this Mac Pro can handle two 5770s or 5770 plus non-power needing cards. Has two 16x PCIE slots for video use.
-- So, I would love to provide what you ask for, but I need to know where it is as there is no CLOVER folder and the only hits I get for clover are in WoW Add Ons (lol).