Gigabyte GA-MA790FX-UD5P Manual - Page 42

CPU Clock Ratio, CPU NorthBridge Freq., CPU Host Clock Control, CPU Frequency Mhz, PCIE Clock MHz,

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Page 42 highlights

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.(Note) Allows you to alter the North Bridge controller frequency for the installed CPU. The adjustable range is dependent on the CPU being used. CPU Host Clock Control Enables or disables the control of CPU host clock. Auto (default) allows 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 200 MHz to 500 MHz. 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 200 MHz. Auto sets the PCIe clock frequency to standard 100 MHz. (Default: Auto) 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~X13 Sets HT Link Frequency to X1~X13 (200 MHz~2.6 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. When you use an AM2 CPU: DDR 400 Sets Memory Clock to DDR 400. DDR 533 Sets Memory Clock to DDR 533. DDR 667 Sets Memory Clock to DDR 667. DDR 800 Sets Memory Clock to DDR 800. When you use an AM2+ CPU: X2.00 Sets Memory Clock to X2.00. X2.66 Sets Memory Clock to X2.66. X3.33 Sets Memory Clock to X3.33. X4.00 Sets Memory Clock to X4.00. X5.33 Sets Memory Clock to X5.33. When you use an AM3 CPU: 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 if you install a CPU that supports this feature. GA-MA790FX-UD5P Motherboard - 42 -

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GA-MA790FX-UD5P Motherboard
- 42 -
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.
(Note)
Allows you to alter the North Bridge controller frequency for the installed CPU. The adjustable
range is dependent on the CPU being used.
CPU Host Clock Control
Enables or disables the control of CPU host clock.
Auto
(default) allows 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 200 MHz to
500 MHz.
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
200 MHz.
Auto
sets the PCIe clock frequency to standard 100 MHz. (Default: Auto)
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~X13
Sets HT Link Frequency to X1~X13 (200 MHz~2.6 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
.
When you use an AM2 CPU:
DDR 400
Sets Memory Clock to DDR 400.
DDR 533
Sets Memory Clock to DDR 533.
DDR 667
Sets Memory Clock to DDR 667.
DDR 800
Sets Memory Clock to DDR 800.
When you use an AM2+ CPU:
X2.00
Sets Memory Clock to X2.00.
X2.66
Sets Memory Clock to X2.66.
X3.33
Sets Memory Clock to X3.33.
X4.00
Sets Memory Clock to X4.00.
X5.33
Sets Memory Clock to X5.33.
When you use an AM3 CPU:
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 if you install a CPU that supports this feature.