Hi, new trial user here. I just finished up refurbishing an older 2009 4,1 Mac Pro to the equivalent of a 2010 5,1 (EFI BIOS upgrade, SSD, etc)…I have an un-flashed EVGA/Nvidia graphics card in it so “Option” key & “select Windows” really isn’t an option for me…hoping to get Boot Runner to work but am having trouble getting the “Windows” selection/boot working. The machine boots back to MacOS/Boot Runner most every time. I say “most every time” because I swear that once I did have it working after switching the option for “Force Boot Option” to “Legacy”…I walked away and when I came the next day the same “boot loop” back to MacOS problem was back.
MasOS is High Sierra (10.13.5) and I have “SIP” disabled (the “csrutil enable -without nvram” command didn’t work on my system).
I have Windows 10 installed on a separate conventional drive and mounted as “BOOTCAMP”/“disk1s1”.
Windows 10 boots fine if I add a Mac flashed graphics card to the system and use the “Option” key at boot up.
The EFI BIOS is the equivalent of a 2010 Mac Pro 5,1 (2 CPU/12 core 32 gig. RAM, SSD boot drive-“disk2s1”).
I have the two volumes listed in “Volume & VM Config”.
The rest of Boot Runner appears to be working OK (marquee, pop-up config, etc.).
Windows 10 was installed from a DVD and is not “EFI Boot” (MBR boot I guess).
Help? Any suggestions? Thanks in advance.