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Chapter 3: BIOS setup
Chapter 3
Ai Overclock Tuner [Auto]
This item allows you to select the CPU overclocking options to achieve the desired CPU
internal frequency. Select any of these preset overclocking conguration options:
[Auto] Automatically optimizes the CPU ratio and BCLK frequency.
[Manual] Loads the optimal settings for the system.
The following item appears only when you set the Ai Overclocking Tuner to [Manual].
CPU Strap [Auto]
This item allows you to select a strap close to your target BCLK (base clock) for an
extreme overclocking, or leave it at [Auto] for the BIOS to upgrade.
Conguration options: [Auto] [100MHz] [125MHz] [166MHz] [250MHz]
The following item appears only when you set the CPU Strap to [100MHz], [125MHz],
[167MHz], or [250MHz].
Source Clock Tuner [Auto]
This item allows you to select the source clock based on the assigned CPU
strap for a better overclocking capability.
Conguration options: [8Ohm dbl] [7Ohm dbl] [6Ohm dbl] [5Ohm dbl]
[4Ohm dbl] [3Ohm dbl] [2Ohm dbl]
PLL Selection [Auto]
This item is set to LC PLL by default for better stability. Select SB PLL when the BCLK
(base clock) frequency is far away from 100 MHz. This may affect the function of other
devices that need precise clock jitters.
Conguration options: [Auto] [LC PLL] [SB PLL]
Filter PLL [Auto]
Set this item to high BCLK (base clock) mode when using a very high BCLK to improve
overclocking capability.
Conguration options: [Auto] [Low BCLK mode] [High BCLK mode]
BCLK Frequency [Auto]
This item allows you to set the BCLK (base clock) frequency to enhance the system
performance. Use the <+> or <-> to adjust the value. The values range from 80.0 MHz
to 300.0 MHz.
We recommend you to set the value based on the CPU specication, as high BCLK
frequencies may damage the CPU permanently.
Initial BCLK Frequency [Auto]
This item allows you to start overclocking the system from the initial BCLK (base clock)
frequency to the assigned BCLK frequency. Use the <+> or <-> to adjust the value.
The value ranges depend on the value you set on BCLK Frequency.