This message was posted on behalf of Intel Corporation
Hello Carsten Sihm,
Thanks for posting in our communities.
Please bear in mind that Intel® Optane™ memory can only accelerate a single SATA boot drive containing Windows 10*. In this case, you'll have to install the OS on the HDD (a separate installation from your work OS).
Usually, when you have two or more boot devices, the system allows you to select which one to boot. You can prioritize one boot device over another on the boot options at the UEFI/BIOS, or access the boot menu to manually select the device (on your board, press F8 when the ASUS* logo shows up).
As for the product name (Intel® Optane™) this is just the commercial name for our current storage and memory solutions using 3D XPoint™ technology.