Ok, I'm at a loss with the installation of my new optane drive. I cannot believe how counter intuitive this is after trying to solve this after reading the forums. I have all the necessary requirements for it to work (7th gen cpu, optane ready board) I'll go in order of how I went about this.
Installed optane drive in the m.2 slot booted up, ran the setupoptane.exe
Error says unsupported bios mode.
Went to bios and updated to optane supported version (0615 for asus b250m-a prime) booted back up
Same error, went into bios and enabled RST rather than AHCI (or whatever it was)
Go to boot up and windows won't boot and says inaccessible boot device.
I figured out that it won't boot while in RST mode. Same thing when I turn off csm mode like you're apparently suppose to.
Plz someone help, I'm ready to return this stupid thing...