If your computer suddenly stops recognizing a hard disk drive (HDD). Instead of entering the Windows interface, it turns into…

Toshiba satellite c660 schematic + bios ec :

Asus X554L bios dump / X555LD Main Board Rev. 3.6 :

Laptop Model Dell XPS 12 Motherboard VAZA0 LA-9262P Rev : 1.0 (A00) KBC / EC ENE KB9012BF Flash WINBOND 25Q64FV…

HP Compaq 6720s ( 456608-001 ) Bios + Schematic :

Samsung NP-NF310 SHARK-10 rev:1.0 Bios dump :

ASUS K42D bios dump :

HP Probook 5310m bios schematic dump :