Memory setting problem in bios

The composition of dual channels seems to be independent of frequency. These should be the options supported by the memory asynchronous working mode. If you press Enter in this item, many scales will be displayed. If your memory frequency is high, changing the scale can make the memory work at a higher supported frequency to improve performance. Remember that there is also a list indicating the working frequency of the memory at what scale. I don't remember, just for reference.