Cpu Overclocking; Bclk Clock Frequency (1/100 Mhz); Fclk Frequency For Early Power On; Active Processor Cores - Supermicro Supero C7Z270-CG-M User Manual

Maximum GT Frequency
This option is the Maximum GT Frequency as defined by the user.
Choose between 300MHz (RPN) and 1200MHz (RP0). Any value beyond
this range will be clipped to its min/max supported by the CPU. The
options are Default Max Frequency, 100MHz through 1200MHz in
increments of 50MHz.

CPU OverClocking

BCLK Clock Frequency (1/100 MHz)

Use this item to set the CPU clock override value for the host system.
The default setting is 10000.

FCLK Frequency for Early Power On

Select the FCLK frequency for early power on. The options are Normal
(800MHz), 1GHz and 400MHz.

Active Processor Cores

Use this feature to select the number of active processor cores. The
options are All, 1, 2, 3 and 4 (these options depend on how many cores
are supported by the CPU).

Load SMC CPU OC Setting

This item has optimized pre-configured overclock settings. Select one
to activate. The options are Manual, 4.0GHz~5.5GHz (in 100MHz in-
crements).
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Chapter 4: AMI BIOS