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. ■ DRAM Timing Selectable (SPD) Manual allows all DRAM Timing items below to be configurable. Options are: Auto (default), Manual. ^ CAS Latency Time Options are: Auto (default), 3~6. o- DRAM RAS# to CAS# Delay Options are: Auto (default), 1~15. o- DRAM RAS# Precharge Options are: Auto (default), 1~15. o- Precharge delay (tRAS) Options are: Auto (default), 1~31. ACT to ACT Delay (tRRD) Options are: Auto (default), 1~15. o' Rank Write to READ Delay Options are: Auto (default), 1~31. o- Write To Precharge Delay Options are: Auto (default), 1~31. o' Refresh to ACT Delay Options are: 0~255 (Default: 0) o- Read to Precharge Delay Options are: Auto (default), 1~15. ^ tRD Options are: Auto (default), 1~31. o- tRD Phase Adjustment Options are: Auto (default), 1~31. - 53 - BIOS Setup English English o- System Voltage Control Determines whether to manually set the system voltages. Auto lets BIOS automatically set the system voltages as required. Manual allows all voltage control items below to be configurable. (Default: Manual) o- DDR2 OverVoltage Control Allows you to to set memory voltage. ►► Normal Supplies the memory voltage as required. (Default) ►► +0.05V ~ +1.55V Increases memory voltage by 0.05V to 1.55V at 0.05V increment. Note: Increasing memory voltage may result in damage to the memory. o- PCI-E OverVoltage Control Allows you to to set PCIe voltage. ►► Normal Supplies the PCIe bus voltage as required. (Default) H +0.05V ~ +0.35V Increases PCIe bus voltage by 0.05V to 0.35V at 0.05V increment. FSB OverVoltage Control Allows you to set the Front Side Bus voltage. ►► Normal Supplies the FSB voltage as required. (Default) ►► +0.05V ~ +0.35V Increases FSB voltage by 0.05V to 0.35V at 0.05V increment. o- (G)MCH OverVoltage Control Allows you to set the North Bridge voltage. ►► Normal Supplies the North Bridge voltage as required. (Default) № +0.025V ~ +0.375V Increases North Bridge voltage by 0.025V to 0.375V at 0.025V increment. o- CPU Voltage Control Allows you to set the CPU voltage. Normal sets the CPU voltage as required. The adjustable range is dependent on the CPU being installed. (Default: Normal) Note: Increasing CPU voltage may result in damage to your CPU or reduce the useful life of the CPU. o- Normal CPU Vcore Displays the normal operating voltage of your CPU. GA-X38-DS5 Motherboard - 54 - 2-10 Load Fail-Safe Defaults Press on this item and then press the key to load the safest BIOS default settings. In case system instability occurs, you may try to load Fail-Safe defaults, which are the safest and most stable BIOS settings for the motherboard. 2-11 Load Optimized Defaults Press on this item and then press the key to load the optimal BIOS default settings. The BIOS defaults settings helps the system to operate in optimum state. Always load the Optimized defaults after updating the BIOS or after clearing the CMOS values. - 55 - BIOS Setup ...
