Bios Mods -The Best BIOS Update and Modification Source

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Can anyone help me unlock this BIOS？ One enough.I need to enter the advanced menu to modify hdd mode to AHCI.
Previous thanks.

Sorry.Here are links below:
ftp.hp.com/pub/softpaq/sp68001-68500/sp68376.exe
And another one is sp66941

youxia341