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Supermicro C9Z390-PGW Motherboard User's Manual
Memory Ratio
This feature controls the memory ratio. The memory frequency is equal
to the memory ratio times the ference clock.
Memory Voltage
Enter a value for the memory voltage override. The default is 1200.
QCLK Odd Ratio
If set to Enabled, this feature adds the Memory Reference Clock amount
to the QCLK frequency. The options are Disabled or Enabled.
Note: When the Memory profile feature (above) is set to "Custom
profile" the following memory timings may be manually changed.
The defaults are listed below.
tCL
tRCD/tRP
tRAS
tCWL
tFAW
tREFI
tRFC
tRRD
tRTP
tWR
tWTR
NMode
tRRD_sg
tRRD_dg
tRDRD_sg
tRDRD_dg
tRDRD_dr
tRDRD_dd
tRDWR_sg
tRDWR_dg
tRDWR_dr
tRDWR_dd
tWRRD_sg
tWRRD_dg
tWRRD_dr
tWRRD_dd
tWRWR_sg
tWRWR_dg
tWRWR_dr
tWRWR_dd
tCKE
4-14
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