Abit Socket 462 System Board User's Guide download pdf (Page 81)

ASUS A7V333 motherboard user guide

NOTE! The following 5 SDRAM parameters appear only when you set

the SDRAM Configuration to [User Defined].

SDRAM CAS Latency [2.5T(DDR)/3T(SDR]

This item controls the latency between the SDRAM read command and the

time the data actually becomes available.

SDRAM RAS to CAS Delay [3T]

This item controls the latency between the SDRAM active command and the

read/write command.

SDRAM RAS Precharge Time [3T]

This item controls the idle clocks after issuing a precharge command to the

SDRAM.

4.4.1 Chip Configuration

SDRAM Configuration [By SPD]

This parameter allows you to set the optimal timings for items 2–5, depending

on the memory modules that you are using. The default setting is [By SPD],

which configures items 2–5 by reading the contents in the SPD (Serial

Presence Detect) device. The EEPROM on the memory module stores critical

information about the module, such as memory type, size, speed, voltage

interface, and module banks. Configuration options: [User Defined] [By SPD]

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Abit Socket 462 System Board User's Guide Page 81