NVS 810 on Linux forced to use SLI Mosaic while not capable of it?

Hello folks, I am setting up a NVS 810 graphics card on Ubuntu 18 with 525.60.13 driver, and attempting to use base mosaic. However it seems that the driver is assuming “SLI” “Mosaic” options:

[ 12189.655] (WW) NVIDIA(GPU-0): The "SLI" "Mosaic" X configuration option should be used for
[ 12189.655] (WW) NVIDIA(GPU-0):     this configuration instead of the "BaseMosaic" option. 
[ 12189.655] (WW) NVIDIA(GPU-0):     The "SLI" "Mosaic" option will be assumed.  Please see
[ 12189.655] (WW) NVIDIA(GPU-0):     Chapter 31: Configuring SLI and Multi-GPU Mosaic and
[ 12189.655] (WW) NVIDIA(GPU-0):     Appendix B: X Config Options for more information.
[ 12189.655] (II) NVIDIA(GPU-0): NVIDIA Base Mosaic enabled.
[ 12189.656] (EE) NVIDIA(GPU-0): Failed to select a display subsystem.
[ 12189.656] (EE) NVIDIA(GPU-0): Only one GPU will be used for this X screen.
[ 12189.656] (EE) NVIDIA(GPU-0): The NVIDIA graphics device PCI:106:0:0 is part of an active
[ 12189.656] (EE) NVIDIA(GPU-0):     SLI configuration and is currently unavailable for single
[ 12189.656] (EE) NVIDIA(GPU-0):     GPU rendering.  Please see Chapter 31: Configuring SLI and
[ 12189.656] (EE) NVIDIA(GPU-0):     Multi-GPU Mosaic in the README for troubleshooting
[ 12189.656] (EE) NVIDIA(GPU-0):     information.
[ 12189.656] (EE)  *** Aborting ***
[ 12189.656] (EE) NVIDIA(0): Failing initialization of X screen

My xorg.conf section:

Section "Device"
    Identifier     "Device0"
    Driver         "nvidia"
    VendorName     "NVIDIA Corporation"
    BoardName      "NVS 810"
    BusID          "PCI:106:0:0"
EndSection

Section "Device"
    Identifier     "Device1"
    Driver         "nvidia"
    VendorName     "NVIDIA Corporation"
    BoardName      "NVS 810"
    BusID          "PCI:108:0:0"
EndSection

Section "Screen"
    Identifier     "Screen0"
    Device         "Device0"
    Monitor        "Monitor0"
    DefaultDepth    24
    Option         "Stereo" "0"
    Option         "nvidiaXineramaInfoOrder" "DFP-5"
    Option         "metamodes" "GPU-0.DP-5:nvidia-auto-select +0+0, GPU-1.DP-0:nvidia-auto-select +1920+0"
    Option         "SLI" "Off"
    Option         "MultiGPU" "Off"
    Option         "BaseMosaic" "on"
    SubSection     "Display"
        Depth       24
    EndSubSection
EndSection

#Section "Screen"
#    Identifier     "Screen1"
#    Device         "Device1"
#    Monitor        "Monitor1"
#    DefaultDepth    24
#    Option         "Stereo" "0"
#    Option         "metamodes" "nvidia-auto-select +0+0 {AllowGSYNC=Off}"
#    Option         "SLI" "Off"
#    Option         "MultiGPU" "Off"
#    Option         "BaseMosaic" "off"
#    SubSection     "Display"
#        Depth       24
#    EndSubSection
#EndSection

What would be the way to go for using all 8 outputs on the 2 GPUs within the NVS 810 unit?
Does it have SLI capabilities or not…?