BIOS Setup Information
ROBO-8716VG2A User’s Manual
4-14
DRAM Timing Selectable
This option provides DIMM plug-and-play support by serial presence detect (SPD)
mechanism via the system management bus (SMBUS) interface.
The choice: Manual, By SPD.
CAS Latency Time
This option controls the number of SCLKs between the time a read command is
sampled by the SDRAMs and the time the GMCH samples correspondent data from
the SDRAMs.
The choice: 1.5, 2, 2.5.
Active to Precharge Delay
This is to DDR standard accordingly.
The choice: 7, 6, and 5.
DRAM RAS# to CAS# Delay
This option controls the number of SCLKs (SDRAM Clock) from a row activate
command to a read or write command. If your system installs good quality of
SDRAM, you can set this option to “3 SCLKs” to obtain better memory performance.
Normally, the option will be set to Auto.
The choice: 2, 3.
DRAM RAS# Precharge
This option controls the number of SCLKs for RAS# precharge. If your system
installs good quality of SDRAM, you can set this option to “3 SCLKs” to obtain
better memory performance. It is set to auto normally.
The choice: 2, 3.
Memory Frequency For
Users are recommended to use Auto for memory frequency selection; Use DDR400
selects Auto.
The choice: DDR266, DDR333, Auto.
