BIOS Setup Utility
SY-P4-645DX DRAGON Ultra
44
CHIPSET FEATURES SETUP (Continue)
Setting
Description
Note
RAS Active Time
7T
Default
4T
5T
6T
Increase DRAM performance.
4T
2T
RAS Precharge
Time
3T
Increase DRAM performance.
Default
4T
2T
RAS To CAS
Delay
3T
Increase DRAM performance.
Default
2T
ACT TO ACT
Delay
3T
DRAM ACT to ACT Delay
selection.
Default
2T
Default
Write Recovery
Time
1T
Increase DRAM performance.
safe
Default
normal
R/W Turn
Around Time
fast
Read/Write Turn Around
Time Control selection.
safe
Default
normal
fast
Read Latency
Control
slow
Increase DRAM performance.
slow
Default
Time Constraint
Control
normal
Timing constraint control on
DRAM back-to-back
selection.