Intel® Pentium® Silver and Intel® Celeron® Processors Datasheet, Volume 1
Serial ATA (SATA)
The SATA controller support two modes of operation, AHCI mode using memory space. The SATA controller no longer supports IDE legacy mode using I/O space. Therefore, AHCI software is required. The PCH SATA controller supports the Serial ATA Specification, Revision 3.2.