Ciao Usconio,
ho riscontrato un problema simile con un’altro pc.
Ho risolto seguendo questa guida (scusa non ritrovo il link ma a suo tempo ho salvato il contenuto in un file):
To solve this problem, I had to change the following BIOS options:
1. Under MAIN / Storage Configuration, I had to change “Configure SATA as …” to [AHCI]. This allowed the kernel to find my disks and boot.
2. I experienced some weird USB problems while booting, and so under ADVANCED / USB Configuration, I had to change “BIOS EHCI Hand-Off” to [Disabled].
3. For good luck, I also made sure ACPI 2.0 was enabled under power saving.