Intel D865PCD Manual do Utilizador descarregar pdf (Página 93)

BIOS Setup Program

Table 53. Chipset Configuration Submenu (continued)

Feature Options Description

CPC Override • Auto (default)

• Enabled

• Disabled

Controls the CPC/1n rule mode.

Enabled allows the DRAM controller to attempt chip

select assertions in two consecutive common clocks.

SDRAM Timing Control

(Note 1)

• Auto (default)

• Manual – Aggressive

• Manual – User Defined

Auto = Timings will be programmed according to the

memory detected.

Manual – Aggressive = Selects most aggressive

user-defined timings.

Manual – User Defined = Allows manual override of

detected SDRAM settings.

SDRAM RAS Active to

Precharge

(Note 3)

• 8

• 7

• 6 (default)

• 5

Corresponds to tRAS.

SDRAM CAS# Latency

(Note 3)

• 2.0

• 2.5 (default)

• 3.0

Selects the number of clock cycles required to

address a column in memory.

SDRAM RAS# to CAS#

Delay

(Note 3)

• 4

• 3 (default)

• 2

Selects the number of clock cycles between

addressing a row and addressing a column.

SDRAM RAS#

Precharge

(Note 3)

• 4

• 3 (default)

• 2

Selects the length of time required before accessing

a new row.

Notes:

1. This feature is displayed only if Extended Configuration is set to User Defined.

2. This option is displayed only if the installed processor has a 533 MHz system bus.

3. This feature is displayed only if SDRAM Timing Control is set to Manual – User Defined.

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