Asus M5A78L-M USB3 User Manual - Page 50

DRAM Timing Configuration

Page 50 highlights

The following items only appear when you set Memory Clock Mode to [Manual]. Memory Clock Speed [400MHz] Selects the memory clock frequency programming method. Configuration options: [400MHz] [533MHz] [667MHz] [800MHz] DRAM Timing Configuration The configuration options for some of the following items vary depending on the DIMMs you install on the motherboard. DRAM CAS# Latency [Auto] Configuration options: [Auto] [4 CLK] ~ [12 CLK] DRAM RAS# to CAS# Delay [Auto] Configuration options: [Auto] [5 CLK] ~ [12 CLK] DRAM RAS# PRE Time [Auto] Configuration options: [Auto] [5 CLK] ~ [12 CLK] DRAM RAS# ACT Time [Auto] Configuration options: [Auto] [15 CLK] ~ [30 CLK] DRAM READ to PRE Time [Auto] Configuration options: [Auto] [4 CLK] [5 CLK] [6 CLK] [7 CLK] DRAM Row Cycle Time [Auto] Configuration options: [Auto] [12 CLK] ~ [42 CLK] DRAM WRITE Recovery Time [Auto] Configuration options: [Auto] [5 CLK] [6 CLK] [7 CLK] [8 CLK] [10 CLK] [12 CLK] DRAM RAS# to RAS# Delay [Auto] Configuration options: [Auto] [4 CLK] [5 CLK] [6 CLK] [7 CLK] DRAM READ to WRITE Delay [Auto] Configuration options: [Auto] [3 CLK] ~ [17 CLK] DRAM WRITE to READ Delay(DD) [Auto] Configuration options: [Auto] [2 CLK] ~ [10 CLK] DRAM WRITE to READ Delay(SD) [Auto] Configuration options: [Auto] [4 CLK] [5 CLK] [6 CLK] [7 CLK] DRAM WRITE to WRITE Timing [Auto] Configuration options: [Auto] [2 CLK] ~ [10 CLK] DRAM READ to READ Timing [Auto] Configuration options: [Auto] [3 CLK] ~ [10 CLK] DRAM REF Cycle Time [Auto] Configuration options: [Auto] [90ns] [110ns] [160ns] [300ns] [350ns] DRAM Refresh Rate [Auto] Configuration options: [Auto] [Every 7.8ms] [Every 3.9ms] DRAM Command Rate [Auto] Configuration options: [Auto] [1T] [2T] Memory Over Voltage [Auto] Sets the memory over voltage. The values range from 1.3500V to 2.3000V with a 0.0100V increment. Use the / keys to adjust the value. 2-12 Chapter 2: BIOS information

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2-12
Chapter 2: BIOS information
The following items only appear when you set
Memory Clock Mode
to
[Manual]
.
Memory Clock Speed [400MHz]
Selects the memory clock frequency programming method.
Configuration options: [400MHz] [533MHz] [667MHz] [800MHz]
DRAM Timing Configuration
The configuration options for some of the following items vary depending on the DIMMs
you install on the motherboard.
DRAM CAS# Latency [Auto]
Configuration options: [Auto] [4 CLK] ~ [12 CLK]
DRAM RAS# to CAS# Delay [Auto]
Configuration options: [Auto] [5 CLK] ~ [12 CLK]
DRAM RAS# PRE Time [Auto]
Configuration options: [Auto] [5 CLK] ~ [12 CLK]
DRAM RAS# ACT Time [Auto]
Configuration options: [Auto] [15 CLK] ~ [30 CLK]
DRAM READ to PRE Time [Auto]
Configuration options: [Auto] [4 CLK] [5 CLK] [6 CLK] [7 CLK]
DRAM Row Cycle Time [Auto]
Configuration options: [Auto] [12 CLK] ~ [42 CLK]
DRAM WRITE Recovery Time [Auto]
Configuration options: [Auto] [5 CLK] [6 CLK] [7 CLK] [8 CLK] [10 CLK] [12 CLK]
DRAM RAS# to RAS# Delay [Auto]
Configuration options: [Auto] [4 CLK] [5 CLK] [6 CLK] [7 CLK]
DRAM READ to WRITE Delay [Auto]
Configuration options: [Auto] [3 CLK] ~ [17 CLK]
DRAM WRITE to READ Delay(DD) [Auto]
Configuration options: [Auto] [2 CLK] ~ [10 CLK]
DRAM WRITE to READ Delay(SD) [Auto]
Configuration options: [Auto] [4 CLK] [5 CLK] [6 CLK] [7 CLK]
DRAM WRITE to WRITE Timing [Auto]
Configuration options: [Auto] [2 CLK] ~ [10 CLK]
DRAM READ to READ Timing [Auto]
Configuration options: [Auto] [3 CLK] ~ [10 CLK]
DRAM REF Cycle Time [Auto]
Configuration options: [Auto] [90ns] [110ns] [160ns] [300ns] [350ns]
DRAM Refresh Rate [Auto]
Configuration options: [Auto] [Every 7.8ms] [Every 3.9ms]
DRAM Command Rate [Auto]
Configuration options: [Auto] [1T] [2T]
Memory Over Voltage [Auto]
Sets the memory over voltage. The values range from 1.3500V to 2.3000V with a 0.0100V
increment. Use the <+> / <-> keys to adjust the value.