Asus M4N78 - Manual (Page 49)

Chapter 2: BIOS setup 2-11
CAS Latency (CL) [Auto]
Allows you to set CAS# latency. Configuration options: [Auto] [3 CLK] [4 CLK] [5 CLK]
[6 CLK] [7 CLK DH_Only]
TRCD [Auto]
Allows you to set TRCD. Configuration options: [3 CLK] [4 CLK] [5 CLK]
[6 CLK] [Auto]
TRP [Auto]
Allows you to set TRP. Configuration options: [3 CLK] [4 CLK] [5 CLK]
[6 CLK] [Auto]
tRTP [Auto]
Allows you to specify the read CAS# to percharge time.
Configuration options: [Auto] [2-4 CLK] [3-5 CLK]
TRAS [Auto]
Allows you to set TRAS. Configuration options: [5 CLK] ~ [18 CLK] [Auto]
TRC [Auto]
Allows you to set TRC. Configuration options: [11 CLK] ~ [19 CLK] [Auto]
tWR [Auto]
Allows you to specify when the last write is registered by the DRAM.
Configuration options: [Auto] [3 CLK] [4 CLK] [5 CLK] [6 CLK]
TRRD [Auto]
Allows you to set TRRD. Configuration options: [2 CLK] [3 CLK] [4 CLK]
[5 CLK] [Auto]
tRWTTO [Auto]
Allows you to set tRWTTO. Configuration options: [Auto] [2 CLK] [3 CLK]
[4 CLK] [5 CLK] [6 CLK] [7 CLK] [8 CLK] [9 CLK]
tWRRD [Auto]
Allows you to specify the write to read delay when accessing different DRAMs.
Configuration options: [Auto] [0 CLK] [1 CLK] [2 CLK] [3 CLK]
tWTR [Auto]
Allows you to specify the write to read delay when accessing the same DRAM.
Configuration options: [1 CLK] [2 CLK] [3 CLK] [Auto]
tWRWR [Auto]
Allows you to specify the Twrwr time. Configuration options: [Auto] [1 CLK]
[2 CLK] [3 CLK]
The following item appears only when the DRAM Timing Mode item is set to [DCT0].