Chip Configuration - Asus MES-N User Manual

4. BIOS SETUP

4.4.1 Chip Configuration

(scroll down to see more items, as shown here)
SDRAM Configuration [By SPD]
This sets the optimal timings of settings for items 2–4, depending on the memory
modules that you are using. The default setting is [By SPD], which configures items
2–4 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] [7ns (143MHz)] [8ns (125MHz)] [By SPD]
SDRAM CAS Latency
This controls the latency between SDRAM read command and the time that the data
actually becomes available. NOTE: To make changes to this field, the SDRAM
Configuration field must be set to [User Define].
SDRAM RAS to CAS Delay
This controls the latency between SDRAM active command and the read/write com-
mand. NOTE: To make changes to this field, the SDRAM Configuration field
must be set to [User Define].
SDRAM RAS Precharge Time
This controls the idle clocks after issuing a precharge command to SDRAM.
NOTE: To make changes to this field, the SDRAM Configuration field must
be set to [User Define].
Refresh RAS Assertion [5T]
Configuration options: [4T] [5T] [6T] [7T]
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