ASRock Z270M-ITX/ac User Manual - Page 59

VCCST Voltage, CPU Internal PLL Voltage, Save User Default, Save User UEFI Setup Profile to Disk

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VCCST Voltage Configure the voltage for the VCCST. CPU Internal PLL Voltage Default is 0.900V. Each step is 0.015V. Adding 9- 15 steps will helps CPU PLL to lock internal clock during High frequency under Ln2 cooling. For example: 1.020V - 1.125V will be proper value. But the voltage level will be different on each processor. User has to find the best value for your own processor. CPU Vcore Voltage must higher than CPU Internal PLL Voltage, or your processor will hang. Save User Default Type a profile name and press enter to save your settings as user default. Load User Default Load previously saved user defaults. Save User UEFI Setup Profile to Disk Save current UEFI settings as an user default profile to disk. Load User UEFI Setup Profile to Disk Load previously saved user defaults from the disk. 54 English

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English
VCCST Voltage
Configure the voltage for the VCCST.
CPU Internal PLL Voltage
Default is 0.900V. Each step is 0.015V. Adding 9- 15 steps will helps CPU PLL to
lock internal clock during High frequency under Ln2 cooling. For example: 1.020V
- 1.125V will be proper value. But the voltage level will be different on each proces-
sor. User has to find the best value for your own processor. CPU Vcore Voltage must
higher than CPU Internal PLL Voltage, or your processor will hang.
Save User Default
Type a profile name and press enter to save your settings as user default.
Load User Default
Load previously saved user defaults.
Save User UEFI Setup Profile to Disk
Save current UEFI settings as an user default profile to disk.
Load User UEFI Setup Profile to Disk
Load previously saved user defaults from the disk.