Sorry, I've no idea, but you should ask on the official forum, at: http://krikzz.com/forum/index.php?board=4.0
I made some more test with original and my NUS-CPU-03 will not take 2X overclock that my probleme. I did a 04 and it wont work too i dont know if its normal i did a 05 and this one work.
Finaly i did a big error i whas thinking that stock speed is 1x so i used on with and only lifthed pin 116 this way its impossible to get 2x it give 1.5x and 3x and 3x is not working on any console.