3-12 Chapter 3: BIOS Setup
3.3.12 DRAM Timing Control
The configuration options for some of the following items vary depending on thedepending on the
DIMMs you install on the motherboard.
1st Information:
The values vary depending on your settings of the following sub-items:
CAS# Latency 7 [Auto]
Configuration options: [Auto] [3 DRAM Clock] [4 DRAM Clock] – [10 DRAM
Clock] [11 DRAM Clock]
RAS# to CAS# Delay 7 [Auto]
Configuration options: [Auto] [3 DRAM Clock] – [10 DRAM Clock]
RAS# PRE Time 7 [Auto]
Configuration options: [Auto] [3 DRAM Clock] – [10 DRAM Clock]
RAS# ACT Time 20 [Auto]
Configuration options: [Auto] [3 DRAM Clock] [4 DRAM Clock] – [16 DRAM
Clock] [17 DRAM Clock]
RAS# to RAS# Delay 4 [Auto]
Configuration options: [Auto] [1 DRAM Clock] – [7 DRAM Clock]
REF Cycle Time 59 [Auto]
Configuration options: [Auto] [30 DRAM Clock] [36 DRAM Clock]
[48 DRAM Clock] [60 DRAM Clock] [72 DRAM Clock] [82 DRAM Clock]
[88 DRAM Clock] [90 DRAM Clock] [100 DRAM Clock] [110 DRAM Clock]
WRITE Recovery Time 8 [Auto]
Configuration options: [Auto] [1 DRAM Clock] – [15 DRAM Clock]
READ to PRE Time 6 [Auto]
Configuration options: [Auto] [3 DRAM Clock] – [15 DRAM Clock]
FOUR ACT WIN Time 20 [Auto]
Configuration options: [Auto] [1 DRAM Clock] – [63 DRAM Clock]
Back-To-Back CAS# Delay 0 [Auto]
Configuration options: [Auto] [4 DRAM Clock] – [18 DRAM Clock]
2nd Information:
The values vary depending on your settings of the following sub-items:
Timing Mode 1N [Auto]
Configuration options: [Auto] [1N] [2N] [3N]
Round Trip Latency on CHA 46 [Auto]
Configuration options: [Auto] [Advance 15 Clock] – [Advance 1 Clock]
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