This is all the help I can provide since I don't use this exact motherboard.
For creating the USB install stick use UEFI method if your mobo bios supports UEFI
I use BIOS method because my mobo did not support UEFI.
If you are using a standard hard-drive this use these setting.
BIOS Settings
Power on
Press F1 to enter Setup
In the
Exit tab enable OS Optimized defaults then Load Optimal Defaults.
Main
System Time & Date - Adjust if necessary.
Devices
Serial Port Setup - Disabled
Network Setup - Boot Agent - Disabled
Power
After Power Loss - Power Off
Enhanced Power Saving Mode - Enabled
Security
Secure Boot - Disabled
Startup
Primary Boot Sequence - Excluded from boot order : Remove all from Excluded (if present)
Primary Boot Sequence - USB KEY : Move to top of list
Automatic Boot Sequence - Excluded from boot order : Remove all from Excluded (if present)
Error Boot Sequence - Excluded from boot order : Remove all from Excluded (if present)
Error Boot Sequence : Move Network 1 down (If at top of list)
CSM - Enabled
F10 to Save & Exit
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I have never performed a direct install with the GT 710.
I have used it in an upgrade from El Capitan to Sierra. and I know it works
The GT 710 only works natively in Sierra.
If you are using any other version of OSX you will need to use a different graphics card.
The GT 630 is best as it works with most versions of OSX natively.
You can find these on ebay for about $30