Asus P2Z-B User Manual download pdf (Page 48)

ASUS P2Z-B User’s Manual48

IV. BIOS SETUP

Chipset Features

Chipset Features Setup

The “Chipset Features Setup” option controls the configuration of the board’s chipset.

NOTE: SETUP Defaults are noted in parenthesis next to each function heading.

Details of Chipset Features Setup

SDRAM Configuration (By SPD)

This sets the optimal timings of settings for items 2–5, depending on the memory

modules that you are using. Default setting is By SPD, which configures items 2–5

by reading the contents in the SPD (Serial Presence Detect) device. This 8-pin serial

EEPROM device stores critical parameter information about the module, such as

memory type, size, speed, voltage interface, and module banks.

SDRAM CAS Latency

This controls the latency between SDRAM read command and the time that the data

actually becomes available. Leave on default setting.

SDRAM RAS to CAS Delay

This controls the latency between SDRAM active command and the read/write com-

mand. Leave on default setting.

SDRAM RAS Precharge Time

This controls the idle clocks after issuing a precharge command to SDRAM. Leave

on default setting.

DRAM Idle Timer

This controls the idle clocks before closing an opened SDRAM page. Leave on

default setting.

SDRAM MA Wait State (Normal)

This controls the leadoff clocks for CPU read cycles. Leave on default setting.

Snoop Ahead (Enabled)

Enabled will allow PCI streaming. Leave on default setting.

Host Bus Fast Data Ready (Disabled)

Leave on default setting.

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Asus P2Z-B User Manual Page 48