Gigabyte GA-EP31-DS3L Manual - Page 48

O.C FSB1600 CPU Enable use of a CPU with 1600 MHz FSB through overclocking. You must install the FSB 1600 MHz CPU with DDR2 800 (or above) memory module(s). Auto Set this item to Auto. Then save the changes and restart your computer. During the POST, a message will appear asking if you want to enable the use of a FSB 1600 processor. Press to confirm or to reject. Or press any key to continue the POST. (Default) Disabled Disable this function. Enabled Enable this function. CPU Host Clock Control Enables or disables the control of CPU host clock. Enabled will allow the CPU Host Frequency 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. (Default: Disabled) CPU Host Frequency (Mhz) Allows you to manually set the CPU host frequency. This item is configurable only if the CPU Host Clock Control option is enabled. The adjustable range is from 100 MHz to 700 MHz. For an 800 MHz FSB CPU, set this item to 200 MHz. For a 1066 MHz FSB CPU, set this item to 266 MHz. For a 1333 MHz FSB CPU, set this item to 333 MHz. Important It is highly recommended that the CPU frequency be set in accordance with the CPU specifications. PCI Express Frequency (Mhz) Allows you to manually set the PCIe clock frequency. The adjustable range is from 90 MHz to 150 MHz. Auto sets the PCIe clock frequency to standard 100 MHz. (Default: Auto) C.I.A.2 CPU Intelligent Accelerator 2 (C.I.A.2) is designed to automatically adjust CPU computing power to maximize system performance. C.I.A.2 allows your system bus to be changed dynamically based on CPU loading through the use of 5 preset states. Note: System stability varies, depending on your system hardware components. Disabled Disables the use of C.I.A.2. (Default) Cruise Increases CPU frequency by 5% or 7% depending on CPU loading. Sports Increases CPU frequency by 7% or 9% depending on CPU loading. Racing Increases CPU frequency by 9% or 11% depending on CPU loading. Turbo Increases CPU frequency by 15% or 17% depending on CPU loading. Full Thrust Increases CPU frequency by 17% or 19% depending on CPU loading. Warning: Before using C.I.A.2, please first verify the overclocking capability of your CPU. As stability is highly dependent on system components, when system instability occurs after overclocking, lower the overclocking ratio. Performance Enhance Allows the system to operate at three different performance levels. Standard Lets the system operate at its basic performance level. Turbo Lets the system operate at its good performance level. (Default) Extreme Lets the system operate at its best performance level. GA-EP31-DS3L Motherboard - 48 -