Supero C9Z390-CG-IW, User Manual

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Chapter 4: UEFI BIOS
4-13
Memory profile
This feature controls the memory profile. The options are
Default pro-
file, Custom profile, and XMP profile 1.
*When Memory profile is set to "Custom profile", the following memory
timing configurations will become available.
Memory Reference Clock
This feature controls the memory reference clock, in MHz. The options
are 133 and 100.
Memory Ratio
This feature controls the memory ratio. The memory frequency is equal
to the memory ratio times the reference clock. The default is
DDR4-
2133MHz .
Memory Voltage
Enter a value for the memory voltage override. The default is 1200 .
QCLK Odd Ratio
Select Enabled to add the Memory Reference Clock amount to the QCLK
frequency. The options are
Disabled and Enabled.
Note: When Memory profile is set to "Custom profile," the follow -
ing memory timings may be manually changed. The defaults are
listed below.
tCL - 14
tRCD/tRP - 14
tRAS - 35
tCWL - 14
tFAW - 23
tREFI - 8316
tRFC - 278
tRRD - 4
tRTP - 8
tWR - 16
tWTR - 0
NMode - 2
tRRD_sg - 6
tRRD_dg - 4
tRDRD_sg - 6
tRDRD_dg - 4
tRDRD_dr - 6
tRDRD_dd - 7
tRDWR_sg - 9
tRDWR_dg - 9
tRDWR_dr - 9