Asus ME-99B 4.4.1Chip Configuration, SDRAM CAS Latency, SDRAM RAS to CAS Delay, SDRAM RAS Precharge Time, Refresh RAS Assertion [5T], SDRAM Configuration [By SPD]

4.BIOS SETUP

4.4.1Chip 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. 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 command. 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]

Leave on default setting.

ASUS ME-99B User’s Manual 53

Chip Configuration

4. BIOS SETUP