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2 dram frequency control [auto, 3 ht link speed [auto – Asus M4N78 Pro User Manual

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Chapter 2: BIOS setup

2-13

CPU Ratio [Auto]

Allows you to set the ratio between the CPU Core Clock and the FSB Frequency. Use <+>

and <-> to adjust the ratio. The valid value ranges vary according to your CPU model.

FSB Frequency [200]

Displays the frequency sent by the clock generator to the system bus and PCI bus. Use the

<+> and <-> keys to adjust the FSB frequency. You can also type the desired FSB frequency

using the numeric keypad. The values range from 200 to 600.

PCIE Frequency [100]

Use the <+> and <-> keys to adjust the PCIE frequency. You can also type the desired PCIE

frequency using the numeric keypad. The values range from 100 to 200.

2.4.2

DRAM Frequency Control [Auto]

Allows you to select the DRAM frequency control method.

Configuration options: [Auto] [Manual]

DRAM Frequency [667MHz]

This item appears only when you set the Dram Frequency Control item to [Manual] and

allows you to manually set the DRAM frequency.

Configuration options: [667MHz] [800MHz] [1066MHz]

CPU/NB Frequency [Auto]

This item appears only when you set the AI Overclocking item to [Manual] and allows

selection of the CPU frequency.

Configuration options: [Auto] [800MHz] [1000MHz] [1200MHz] [1400MHz] [1600MHz]

[1800MHz]

2.4.3

HT Link Speed [Auto]

Allows you to set the CPU-Northbridge HyperTransport link speed.

Configuration options: [Auto] [200 MHz] [400 MHz] [600 MHz] [800 MHz] [1 GHz] [1.2 GHz]

[1.4 GHz] [1.6 GHz] [1.8 GHz]

Memory Configuration

This item appears only when you set the AI Overclocking item to [Manual] and allows you to

change the advanced memory settings.

Bank Interleaving [Auto]

Allows you to enable or disable the bank memory interleaving.

Configuration options: [Disabled] [Auto]
Channel Interleaving [Auto]

Allows you to set the channel interleaving mode.

Configuration options: [Disabled] [Address bits 6] [Address bits 12] [XOR of Address

bits [20:16, 6] [XOR of Address bits [20:16, 9]] [Auto]
Enable Clock to All DIMMs [Disabled]

Allows you to enable or disable unused clocks to all the DIMMs.

Configuration options: [Disabled] [Enabled]
MemClk Tristate C3/ATLVID [Disabled]

Allows you to enable or disable MemClk Tri-Stating during C3 and Alt VID.