Asus A7A266-E - Manual (Page 59)

ASUS A7A266-E User’s Manual 59
4. BIOS SETUP
4. BIOS SETUP
Chip Configuration
4.4.1 Chip Configuration
SDRAM Configuration [By SPD]
This sets the optimal timings for items 4-7, depending on the memory mod-
ules that you are using. The default setting [By SPD] configures items 4-7
by reading the contents in the SPD (Serial Presence Detect) device. The
EEPROM on the memory module stores critical parameter information
about the module, such as memory type, size, speed, voltage interface, and
module banks. Configuration options: [User Define] [By SPD]
NOTE: The following 3 fields will only be adjustable when SDRAM
Configuration is set to [User Define].
SDRAM CAS Latency
This controls the latency between the SDRAM read command and the
time that the data actually becomes available. Configuration options:
[2.5T (DDR) / 2T (SDR)] [2.0T (DDR) / 2T (SDR)]
SDRAM RAS to CAS Delay
This controls the latency between the SDRAM active command and
the read/write command. Configuration options: [3T] [2T]
SDRAM RAS Precharge Time
This controls the idle clocks after issuing a precharge command to the
SDRAM. Configuration options: [3T] [2T]