DieSse there is an option within the Bios to password protect access to the hard drive,this is followed with the warning that if forgotten the hard drive will become useless! i'm NOT talking about the bios password that restricts access to the bios settings.
And it would stop a clone from booting without the password.
If your BIOS somehow writes something to the drive itself, that needs a password to get around it - then I cannot see why the clone should not have duplicated this change. After all that's what a clone should be - an exact duplicate of the original.