MSI H61M-P20 (G3) - Manual (Page 24)

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M-Flash
use this menu to read/ flash the BioS form storage drive (FAt/ FAt32 format
only).
Security
use this menu to set supervisor and user passwords.
Boot
use this menu to specify the priority of boot devices.
Save & exit
this menu allows you to load the BioS default values or factory default settings
into the BioS and exit the BioS setup utility with or without changes.
overclocking
Current CPu / drAM Frequency
these items show the current clocks of CPu and Memory speed. read-only.
Adjust CPu ratio
this item controls the multiplier that is used to determine the internal clock speed
of the processor relative to the external or motherboard clock speed. it is available
only when the processor supports this function.
Adjusted CPu Frequency
it shows the adjusted CPu frequency. read-only.
internal PLL overvoltage
this item are used to adjust the PLL voltage.