Gigabyte GA-990FXA-UD3 Manual - Page 36

CPU Host Clock Control - technology

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CPU Clock Ratio Allows you to alter the clock ratio for the installed CPU. The adjustable range is dependent on the CPU being used. CPU NorthBridge Freq. Allows you to alter the North Bridge controller frequency for the installed CPU. The adjustable range is dependent on the CPU being used. Core Performance Boost (Note) Allows you to determine whether to enable the Core Performance Boost (CPB) technology, a CPU performance-boost technology. (Default: Enabled) CPB Ratio (Note) Allows you alter the ratio for the CPB. The adjustable range is dependent on the CPU being installed. (Default: Auto) Turbo CPB (Note) Allows you to determine whether to improve CPU performance. (Default: Disabled) CPU Host Clock Control Enables or disables the control of CPU host clock. Auto (default) allows the BIOS to automatically adjust the CPU host frequency. Manual allows the CPU Frequency (MHz) item below to be configurable. Note: If your system fails to boot after overclocking, please wait for 20 seconds to allow for automated system reboot, or clear the CMOS values to reset the board to default values. CPU Frequency(MHz) Allows you to manually set the CPU host frequency. The adjustable range is from 100 MHz to 500 MHz. This option is configurable only when CPU Host Clock Control is set to Manual. Important It is highly recommended that the CPU frequency be set in accordance with the CPU specifications. PCIE Clock(MHz) Allows you to manually set the PCIe clock frequency. The adjustable range is from 100 MHz to 150 MHz. Auto sets the PCIe clock frequency to standard 100 MHz. (Default: Auto) HT Link Width Allows you to manually set the width for the HT Link between the CPU and chipset. Auto BIOS will automatically adjust the HT Link Width. (Default) 8 bit Sets HT Link Width to 8 bit. 16 bit Sets HT Link Width to 16 bit. HT Link Frequency Allows you to manually set the frequency for the HT Link between the CPU and chipset. Auto BIOS will automatically adjust the HT Link Frequency. (Default) x1~x10 Sets HT Link Frequency to x1~x10 (200 MHz~2.0 GHz). Set Memory Clock Determines whether to manually set the memory clock. Auto lets BIOS automatically set the memory clock as required. Manual allows the memory clock control item below to be configurable. (Default: Auto) Memory Clock This option is configurable only when Set Memory Clock is set to Manual. X4.00 Sets Memory Clock to X4.00. X5.33 Sets Memory Clock to X5.33. X6.66 Sets Memory Clock to X6.66. X8.00 Sets Memory Clock to X8.00. (Note) This item is present only when you install a CPU that supports this feature. BIOS Setup - 36 -

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BIOS Setup
- 36 -
CPU Clock Ratio
Allows you to alter the clock ratio for the installed CPU. The adjustable range is dependent on the CPU
being used.
CPU NorthBridge Freq.
Allows you to alter the North Bridge controller frequency for the installed CPU. The adjustable range is
dependent on the CPU being used.
Core Performance Boost
(Note)
Allows you to determine whether to enable the Core Performance Boost (CPB) technology, a CPU
performance-boost technology. (Default: Enabled)
CPB Ratio
(Note)
Allows you alter the ratio for the CPB. The adjustable range is dependent on the CPU being installed.
(Default: Auto)
Turbo CPB
(Note)
Allows you to determine whether to improve CPU performance. (Default: Disabled)
CPU Host Clock Control
Enables or disables the control of CPU host clock.
Auto
(default) allows the BIOS to automatically adjust
the CPU host frequency.
Manual
allows the
CPU Frequency (MHz)
item below to be configurable.
Note: If your system fails to boot after overclocking, please wait for 20 seconds to allow for automated
system reboot, or clear the CMOS values to reset the board to default values.
CPU Frequency(MHz)
Allows you to manually set the CPU host frequency.
The adjustable range is from 100 MHz to 500 MHz.
This option is configurable only when
CPU Host Clock Control
is set to
Manual
.
Important
It is highly
recommended that the CPU frequency be set in accordance with the CPU specifications.
PCIE Clock(MHz)
Allows you to manually set the PCIe clock frequency. The adjustable range is from 100 MHz to 150 MHz.
Auto
sets the PCIe clock frequency to standard 100 MHz. (Default: Auto)
HT Link Width
Allows you to manually set the width for the HT Link between the CPU and chipset.
Auto
BIOS will automatically adjust the HT Link Width. (Default)
8 bit
Sets HT Link Width to 8 bit.
16 bit
Sets HT Link Width to 16 bit.
HT Link Frequency
Allows you to manually set the frequency for the HT Link between the CPU and chipset.
Auto
BIOS will automatically adjust the HT Link Frequency. (Default)
x1~x10
Sets HT Link Frequency to x1~x10 (200 MHz~2.0 GHz).
Set Memory Clock
Determines whether to manually set the memory clock.
Auto
lets BIOS automatically set the memory
clock as required.
Manual
allows the memory clock control item below to be configurable. (Default: Auto)
Memory Clock
This option is configurable only when
Set Memory Clock
is set to
Manual
.
X4.00
Sets Memory Clock to X4.00.
X5.33
Sets Memory Clock to X5.33.
X6.66
Sets Memory Clock to X6.66.
X8.00
Sets Memory Clock to X8.00.
(Note)
This item is present only when you install a CPU that supports this feature.