ASRock X299E-ITX/ac User Manual - Page 63

Four Activate Window tFAW, CAS Write Latency tCWL, Third Timing, tREFI, tCCD_L, tCCD_WR_L, tRRDS

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Page 63 highlights

X299E-ITX/ac Four Activate Window (tFAW) The time window in which four activates are allowed the same rank. CAS Write Latency (tCWL) Configure CAS Write Latency. Third Timing tREFI Configure refresh cycles at an average periodic interval. tCKE Configure the period of time the DDR4 initiates a minimum of one refresh command internally once it enters Self-Refresh mode. tCCD Configure back to back CAS to CAS (i.e. READ to RAED or WRITE to WRITE) from same rank separation parameter. tCCD_L Configure back to back CAS to CAS (i.e. READ to RAED or WRITE to WRITE) from same rank separation parameter. tCCD_WR_L Configure back to back CAS to CAS (i.e. READ to RAED or WRITE to WRITE) from same rank separation parameter. tRRDS The number of clocks between two rows activated in different banks of the same rank. tRRDR Configure Read to Read different rank dead cycle Back to back READ to WRITE from different DIMM separation parameter. tRRDD Use this item to change tRRDD setting. The default is [Auto]. tRWSR Use this item to change tRWSR setting. The default is [Auto]. 57 English

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English
57
X299E-ITX/ac
Four Activate Window (tFAW)
°e time window in which four activates are allowed the same rank.
CAS Write Latency (tCWL)
Configure CAS Write Latency.
Third Timing
tREFI
Configure refresh cycles at an average periodic interval.
tCKE
Configure the period of time the DDR4 initiates a minimum of one refresh
command internally once it enters Self-Refresh mode.
tCCD
Configure back to back CAS to CAS (i.e. READ to RAED or WRITE to WRITE)
from same rank separation parameter.
tCCD_L
Configure back to back CAS to CAS (i.e. READ to RAED or WRITE to WRITE)
from same rank separation parameter.
tCCD_WR_L
Configure back to back CAS to CAS (i.e. READ to RAED or WRITE to WRITE)
from same rank separation parameter.
tRRDS
°e number of clocks between two rows activated in different banks of the same
rank.
tRRDR
Configure Read to Read different rank dead cycle Back to back READ to WRITE
from different DIMM separation parameter.
tRRDD
Use this item to change tRRDD setting. °e default is [Auto].
tRWSR
Use this item to change tRWSR setting. °e default is [Auto].