I have both an Ic7 and the cheaper Is7. The Is7 is the better overclocker of the 2 (have run a 2.4 b @ 3.1 and a 3.2 d @ 3.6. However, not a very high voltage adjustment.
You are about to answer a thread that has been inactive for more than 6 months. If you still wish to proceed, please ensure that your posting is original and does not duplicate or overlap any prior responses to this thread.