Asus TUSI-M User Manual download pdf (Page 55)

ASUS TUSI-M User’s Manual 55

4. BIOS SETUP

Chip Configuration

4.4.1 Chip Configuration

(Scroll down to see more items as shown.)

SDRAM Timing [By SPD]

This sets the optimal timings for items 2-4, depending on the memory mod-

ules that you are using. The default setting [By SPD] 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 mod-

ule banks. Configuration options: [User Define] [By SPD]

SDRAM CAS Latency

This controls the latency between the SDRAM read command and the

time that the data actually becomes available. NOTE: This field will only

be adjustable when SDRAM Configuration is set to [User Define].

SDRAM RAS to CAS Delay

This controls the latency between the SDRAM active command and the

read/write command. NOTE: This field will only be adjustable when

SDRAM Configuration is set to [User Define].

SDRAM RAS Precharge Time

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

SDRAM. NOTE: This field will only be adjustable when SDRAM

Configuration is set to [User Define].

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Asus TUSI-M User Manual Page 55