BIOS Setup Information
ROBO-8910VG2A User’s Manual
4-12
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 DRAMs and the time the GMCH samples correspondent data from
the DRAMs.
The choice: 5 4, 3, and Auto.
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, 4, 5 and Auto.
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, 4, 5 and Auto.
Precharge delay (tRAS)
The choice: 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, and Auto.
System Memory Frequency
Users are recommended to use Auto for memory frequency selection.
The choice: 333MHz, 400MHz, 533MHz, and Auto.
SLP_S4# Assertion Width
The choice: 4 to 5 Sec., 3to 4 Sec, 2 to 3 Sec., 1 to 2 Sec.
