This message was posted on behalf of Intel Corporation
We understand you're frustrated since Optane™ Memory can only be used to accelerate SATA based boot drives.
For more information on this, we can recommend the following articles:
As a workaround, we can recommend the following:
1. Install your OS on the larger, but slower, HDD.
2. Install your 32 GB Optane™ Memory Module and enable system acceleration.
3. Use your NVMe* drive as a fast secondary unit.
Thanks to the advanced caching algorithm and hardware advantages of Intel® Optane™ Memory, you should end up with two very fast drives.
We hope this helps.