ASRock Z590 Steel Legend User Manual - Page 82
CPU GT Load-Line Calibration, PLL Voltage Configuration
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Z590 Steel Legend Configure the voltage for the integrated GPU. CPU GT Load-Line Calibration GT Load-Line Calibration helps prevent integrated GPU voltage droop when the system is under heavy load. VCCSA Voltage Configure the voltage for the VCCSA. VCCSA Load-Line Calibration VCCSA Load-Line Calibration helps prevent integrated VCCSA voltage droop when the system is under heavy load. DRAM Voltage Use this to configure DRAM Voltage. The default value is [Auto]. VCCIO Voltage Configure the voltage for the VCCIO. VCCIO 1 2 Voltage Configure the voltage for the VCCIO 1 2. DRAM Activating Power Supply Configure the voltage for the DRAM Activating Power Supply. VCCIN AUX Voltage Configure the voltage for the VCCIN AUX. CPU Standby Voltage Configure the voltage for the CPU Standby. PLL Voltage Configuration CPU Internal PLL Voltage Default is 0.900V. Each step is 0.0175V. Adding 9~15 steps will help CPU PLL to lock internal clock during High frequency under Ln2 cooling. For Example: 1.0575V ~ 1.1625V 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. VCCPLL Voltage must be at least 150mV higher than the target PLL voltage, or your system will hang. GT PLL Voltage 75 English