CnQ, c1e, = Both of those settings are related to each other and will allow the cpu to throttle down under no load conditions and thus require less voltage and run cooler during the time of no work to do.
c6, amd turbo core = Both of those are related to each other as well. C6 is required for TurboCore to function as I understand it and TurboCore is basically useless when manually overclocking and setting multipliers manually, so I Disable both settings.
RGone...