Ahmad Zaklouta
  • Member for 2 years, 2 months
  • Last seen more than a month ago
How does BIOS exactly read the first sector
Accepted answer
1 votes

After some testing with SATA analyzer, it turns out that the BIOS or UEFI is smart enough to not use slow ATA commands such as READ SECTOR(S) in the boot process. instead it uses the ATA command READ ...

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