ASRock Z87iCafe4 User Manual - Page 57

Read to Precharge tRTP, Four Activate Window tFAW, CAS Write Latency tCWL, tREFI, tRDRD, tWRWR

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Page 57 highlights

Z87iCafe4 Read to Precharge (tRTP) The number of clocks that are inserted between a read command to a row precharge command to the same rank. Four Activate Window (tFAW) The time window in which four activates are allowed the same rank. CAS Write Latency (tCWL) Configure CAS Write Latency. tREFI Configure refresh cycles at an average periodic interval. tCKE Configure the period of time the DDR3 initiates a minimum of one refresh command internally once it enters Self-Refresh mode. tRDRD Configure between module read to read delay. tRDRDDR Configure between module read to read delay from different ranks. tRDRDDD Use this to change DRAM tRWSR Auto/Manual settings. The default is [Auto]. tWRRD Configure between module write to read delay. tWRRDDR Configure between module write to read delay from different ranks. tWRRDDD Use this to change DRAM tRRSR Auto/Manual settings. The default is [Auto]. Configure between module write to read delay from different DIMMs. tWRWR Configure between module write to write delay. 53 English

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Z
8
7iCafe4
53
English
Read to Precharge (tRTP)
°e number of clocks that are inserted between a read command to a row pre-
charge command to the same rank.
Four Activate Window (tFAW)
°e time window in which four activates are allowed the same rank.
CAS Write Latency (tCWL)
Configure CAS Write Latency.
tREFI
Configure refresh cycles at an average periodic interval.
tCKE
Configure the period of time the DDR3 initiates a minimum of one refresh
command internally once it enters Self-Refresh mode.
tRDRD
Configure between module read to read delay.
tRDRDDR
Configure between module read to read delay from different ranks.
tRDRDDD
Use this to change DRAM tRWSR Auto/Manual settings. °e default is [Auto].
tWRRD
Configure between module write to read delay.
tWRRDDR
Configure between module write to read delay from different ranks.
tWRRDDD
Use this to change DRAM tRRSR Auto/Manual settings. °e default is [Auto].
Configure between module write to read delay from different DIMMs.
tWRWR
Configure between module write to write delay.