Just wanted to add that your BIOS password can be circumvented by taking out the CMOS battery. That will clear all your settings and allow unrestricted access. A BIOS password should absolutely never be used as a form of security, it is trivial to bypass.
Granted, I don’t believe that the TPM will give the key if secure boot were disabled, I just wanted to mention that BIOS passwords don’t do anything against any real attack.