Using the BIOS Setup Program

Table 24. Chipset Configuration Submenu (continued)

Feature

SDRAM Timing Control

SDRAM RAS Act. To Pre.

SDRAM CAS# Latency

SDRAM RAS# to CAS# delay

SDRAM RAS# Precharge

Options

Auto (default)

Manual – Aggressive

Manual – User Defined

7

6

5

Auto (default)

3

2

Auto (default)

3

2

Auto (default)

3

2

Auto (default)

Description

Auto allows timings to be programmed according to the memory detected.

Manual – Aggressive selects the most aggressive user defined timings.

Manual User Defined allows manual override of detected SDRAM settings.

Selects length of time from read to pre-change.

Selects the number of clock cycles required to address a column in memory.

Selects the number of clock cycles between addressing a row and addressing a column.

Selects the length of time required before accessing a new row.

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Intel D845EPI manual Options Auto default, Auto default Description