Asus DiGiMatrix Manuel d'utilisateur télécharger pdf (Page 134)

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Chapter 5: BIOS Information

5.4.1 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]

SDRAM CAS Latency [2.5T]

This item controls the latency between the SDRAM read command and

the time the data actually becomes available. Configuration options: [2.5T]

[2T] [1.5T] [3T]

SDRAM RAS to CAS Delay [3T]

This item controls the latency between the SDRAM active command and

the read/write command. Configuration options: [3T] [2T] [4T]

SDRAM RAS Precharge Time [3T]

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

the SDRAM. Configuration options: [3T] [2T] [4T]

The SDRAM parameters (items 2~5) is user configurable only when you

set the SDRAM Configuration to [User Defined].

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Asus DiGiMatrix Manuel d'utilisateur Page 134