is that motherboard related (the 1.2v), or is it a limitation of the cpu? if it is motherboard related, maybe you can pull some strings and get a quick bios fix... you could probably get the 33% oc with just air cooling? i wanna think that a 33% oc is still in the 4.0-4.3 ghz range?... i know you cant answer that yet.
with only 1.2v i bet you could get the same oc on air?