yes, you can. I believe as a protective precaution, the new chips have flashbios v3.0.1 on banks 1234 and v3.0.3 on banks 5678 so that it will cover all xbox versions. For your case, you will need v3.0.1 flashbios since v1.6 has issues with v3.0.3. I believe flashbios v3.0.1 is in your backup bios by default (but don't quote me on it)