initializing the SSD in Disk Management, updating drivers, ensuring the SATA mode in BIOS is set to AHCI, and trying a different port or cable. You can also run the hardware troubleshooter ...

The Fujitsu Futro S900 was built up to 2013, and only had one SATA port from the factory. [Jan] wanted to add another as this would make the device more useful as a network attached storage server.