It's OF bug, don't worry. This is the only speed that isn't auto-detected.
Check 1.58 mac mini overclock in Google and you'll find a workaround.
Basically you need to manually type correct CPU speed in OF and save it in nvramrc. Don't remember exact code now, but method is the same as for minis.
Go higher. 1.42 is 1.92 capable (I still have mine).
BTW, you have reminded me this thread and I see now that I've never responded to ravik's question
Forgive me ravik
Check 1.58 mac mini overclock in Google and you'll find a workaround.
Basically you need to manually type correct CPU speed in OF and save it in nvramrc. Don't remember exact code now, but method is the same as for minis.
Go higher. 1.42 is 1.92 capable (I still have mine).
BTW, you have reminded me this thread and I see now that I've never responded to ravik's question
Forgive me ravik