ASROCK M3A790GMH/128M User Manual download pdf (Page 47)

4747

3.4.23.4.2

3.4.2

Memory ConfigurationMemory Configuration

Memory Configuration

BIOS SETUP UTILITY

Memory Configuration

Select Screen

Select Item

+- Change Option

F1 General Help

F9 Load Defaults

F10 Save and Exit

ESC Exit

Advanced

Select Screen

Select Item

+- Change Option

F1 General Help

F9 Load Defaults

F10 Save and Exit

ESC Exit

Memory Controller Mode

Power Down Enable

Bank Interleaving

Channel Interleaving

[Unganged]

[Disabled]

[Auto]

[XOR of Address bit]

Memory Clock

[Auto]

Timing : 4-4-4-12

Timing : 2-2-2-4-16

CAS Latency (CL)

TRCD

TRP

TRAS

TRTP

TRRD

TWTR

TWR

[Auto]

Memory Clock

This item can be set by the code using [Auto]. You can set one of the

standard values as listed: [400 MHz (DDR3 800)], [533 MHz (DDR3 1066)],

[667 MHz (DDR3 1333)] and [800MHz (DDR3 1600)].

Memory Controller Mode

It allows you to adjust the memory controller mode. Configuration options:

[Unganged] and [Ganged]. The default value is [Unganged].

Power Down Enable

Use this item to enable or disable DDR power down mode.

Bank Interleaving

Interleaving allows memory accesses to be spread out over banks on the

same node, or accross nodes, decreasing access contention.

Channel Interleaving

This option appears only when you adopt Phenom CPU. It allows you to

enable Channel Memory Interleaving. Configuration options: [Disabled], [XOR

of Address bit [20:16, 6]], [XOR of Address bit [20:16, 9]], [Address bits 6]

and [Address bits 12]. The default value is

[XOR of Address bit [20:16, 9]].

CAS Latency (CL)

Use this item to adjust the means of memory accessing. Configuration

options: [Auto], [4CLK] to [12CLK]. The default value is [Auto].

TRCD

Use this to adjust TRCD values. Configuration options: [Auto], [5CLK] to

[12CLK]. The default value is [Auto].

TRP

Use this to adjust TRP values. Configuration options: [Auto], [5CLK] to

[12CLK]. The default value is [Auto].

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ASROCK M3A790GMH/128M User Manual Page 47

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