On 2025-10-06, David Christensen <[email protected]> wrote: >>> >>> I tried with only two computers and still am not certain if it was a >>> bug, a feature, or PEBKAC. Look up the SED standards if it matters. >> >> I did a little bit, and you'd need to reveal at least the drive model, >> how it was locked, the OS on the target computer, and maybe something I >> haven't thought of in order to eliminate the uncertainty. > > Computer #1: Intel DQ67SW motherboard > Computer #2: Dell Latitude E6520 > SSD: Intel SSD 520 Series https://www.dell.com/community/en/conversations/locked-topics-laptops-general/hdd-ata-password-via-bios-same-hdd-but-pw-doesnt-work-in-new-dell/647f16f9f4ccf8a8de9a6cf7?utm
That's all I could find after a cursory examination of the Net. I don't know whether you've said exactly what occurs when unlocking the drive fails on computer #2; are you prompted for a password? I guess you are and it fails to unlock the drive. You've tried on two computers. Are they both Dells? > All SED operations were done via the BIOS/UEFI Setup (set/clear > password) or POST (enter password). > > > The TPM chip was disabled via Setup in both computers. > > > Once the drive was unlocked, the OS (Windows, Debian) just saw it as a > regular drive. > > > David > >
