UEFI boot variables (stored in NVRAM) are checked for tampering. This includes the BootOrder, Boot#### entries, and Secure Boot keys (though Secure Boot was not standard in 2006, some Aptio DT versions had early implementations).
If you see "Verification Failed – System Halted," the integrity check failed.
Causes:
Solutions:
sudo dmidecode -s bios-version
sudo dmidecode -s bios-release-date
Output may include APTIO DT 2006 or similar.
Look for printed model numbers on the board itself, often between PCI slots or near the CPU socket. Examples:
"Verified" in this context appears during: ami aptio dt 2006 mainboard verified
When all four words are combined, "AMI Aptio DT 2006 mainboard verified" often appears as a POST message or a log entry signaling that the UEFI firmware on a circa-2006 desktop motherboard has successfully completed its integrity verification routine.
Press Del, F2, or F10 at boot – the BIOS screen usually shows system manufacturer and BIOS version (e.g., Aptio Setup Utility – Copyright AMI).
Symptoms: The text appears on screen, then the system freezes before booting to OS. UEFI boot variables (stored in NVRAM) are checked
Possible Causes:
Solutions: