ASROCK X399 Phantom Gaming 6 User Manual page 88

Memory Clear
When this feature is disabled, BIOS does not implement MemClear after memory training
(only if non-ECC DIMMs are used).
ACPI SLIT Distance Control
Determines how the SLIT distances are declared.
UMC Common Options
DDR4 Common Options
DRAM Controller Configuration
DRAM Controller Configuration
DRAM Power Options
Cmd2T
Select between 1T and 2T mode on ADDR/CMD
Gear Down Mode
Configure the Gear Down Mode.
CAD Bus Configuration
CAD Bus Timing User Controls
Setup time on CAD bus signals to Auto or Manual
CAD Bus Drive Strength User Controls
Drive Strength on CAD bus signals to Auto or Manual
Data Bus Configuration
Data Bus Configuration User Controls
Specify the mode for drive strength to Auto or Manual
Common RAS
Data Poisoning
Enable/disable data poisoning: UMC_CH::EccCtrl[UcFatalEn] UMC_
CH::EccCtrl[WrEccEn]
Should be enabled/disabled together.
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