Automatic Overclock setting

[cmf21]

Haven't built a computer in years and noticed this setting in the bios of my sisters Biostar TA780g M2+ board. There are three performance levels, v6, v8, v12 Was thinking of clocking her 5050e. Anyone use these or is manual better?

 

[VirtualLarry]

manual overclocking is ALWAYS better.

Also, do you think it is wise to overclock someone else's computer? Do they want it to be overclocked?