What memory do you have ?
Perhaps you can provide your full system spec. >>Posting Guide<<
If you only want X42, then all you need to do is to change the core multis in the CPU Features sub menu.Change them all to 42, save and restart. The PC will run at 1,6 in idle and at 4,2 under load. As simple as that. Once you have done that, then we can discuss mem overclocking, which is more a theoretical ego boost than anything else.
The best OC Genie is the person doing it. No button can replace that.