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Supermicro C7Z270-CG-L Motherboard User’s Manual

1-Core Ratio Limit Override

This increases (multiplies) 1 clock speed in the CPU core in relation to

the bus speed when one CPU core is active. Enter 0 to use the manu-

facturer's default setting.

2-Core Ratio Limit Override

This increases (multiplies) 2 clock speeds in the CPU core in relation

to the bus speed when two CPU cores are active. Enter 0 to use the

manufacturer's default setting.

RSR

This item enables or disables the Reliability Stress Restrictor (RSR) fea-

ture. Use this feature to lower the CPU turbo ratio if the temperature is

too high. The options are Disabled and Enabled.

Boot performance mode

This option enables the selection of the default CPU performance during

system boot. The options are Max Non-Turbo Performance, Max Bat-

tery, and Turbo Performance.

Intel(R) SpeedStep(tm)

Enhanced Intel SpeedStep Technology (EIST) allows the system to

automatically adjust processor voltage and core frequency in an effort

to reduce power consumption and heat dissipation. Please refer to

Intel’s web site for detailed information. The options are Disabled

and Enabled.

Package Power Limit MSR Lock

This feature enables or disables the locking of Package Power Limit

settings. When enabled Package Power Limit MSR will be locked and a

reset will be required to unlock the register. The options are Disabled

and Enabled.

Congurable TDP Boot Mode

This feature sets the TDP Boot Mode to either Nominal, Up, Down or De-

activated. When deactivated, it will set MSR to Nominal and MMIO to zero.

Congurable TDP Lock

This option sets the lock bits on TURBO_ACTIVATION_RATIO and CON-

FIG_TDP_CONTROL. When lock is enabled, Custom Cong TDP Count

will be forced to 1 and Custom Cong TDP Boot Index will be forced to

0. The options are Disabled and Enabled.

Supero C7Z270-CG-L User Manual

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