User Manual
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... 3-2 3.2.2 ASUS EZ Flash 2 utility 3-4 3.2.3 ASUS CrashFree BIOS 3 utility 3-5 3.2.4 ASUS BIOS Updater 3-5 3.3 BIOS setup program 3-8 3.3.1 BIOS menu screen 3-8 3.3.2 Menu bar 3-8 3.3.3 Navigation keys 3-9 3.3.4 Menu items 3-9 3.3.5 Submenu items 3-9 3.3.6 Configuration fields 3-9 3.3.7 Pop-up window 3-9 3.3.8 Scroll bar 3-9 3.3.9 General help 3-9 3.4 Main menu 3-10 3.4.1 SATA 1-6 3-10 3.4.2 Storage Configuration 3-12 3.4.3 AHCI Configuration 3-13 3.4.4 System Information 3-13 3.5 Ai Tweaker menu 3-14 3.5.1 Ai Overclock...
... 3-2 3.2.2 ASUS EZ Flash 2 utility 3-4 3.2.3 ASUS CrashFree BIOS 3 utility 3-5 3.2.4 ASUS BIOS Updater 3-5 3.3 BIOS setup program 3-8 3.3.1 BIOS menu screen 3-8 3.3.2 Menu bar 3-8 3.3.3 Navigation keys 3-9 3.3.4 Menu items 3-9 3.3.5 Submenu items 3-9 3.3.6 Configuration fields 3-9 3.3.7 Pop-up window 3-9 3.3.8 Scroll bar 3-9 3.3.9 General help 3-9 3.4 Main menu 3-10 3.4.1 SATA 1-6 3-10 3.4.2 Storage Configuration 3-12 3.4.3 AHCI Configuration 3-13 3.4.4 System Information 3-13 3.5 Ai Tweaker menu 3-14 3.5.1 Ai Overclock...
User Manual
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...your system cool and stable. ESP - Efficient Switching Power Design Exclusively for this motherboard, the power switching design is brought to the ASUS motherboards. 12+2 phase power design, 12-phase for vCore and extra 2-phase for Memory... "TUF ENGINE!" CoolMem! CoolMem! This feature optimizes the power phase functions, allowing components to effectively enhance the overclocking capability. ASUS SABERTOOTH 55i 1-3 dramatically improves system efficiency and reduces heat generation. Thermal Solutions CeraM!X Heatsink Coating Technology Innovative ceramics actively conducts ...
...your system cool and stable. ESP - Efficient Switching Power Design Exclusively for this motherboard, the power switching design is brought to the ASUS motherboards. 12+2 phase power design, 12-phase for vCore and extra 2-phase for Memory... "TUF ENGINE!" CoolMem! CoolMem! This feature optimizes the power phase functions, allowing components to effectively enhance the overclocking capability. ASUS SABERTOOTH 55i 1-3 dramatically improves system efficiency and reduces heat generation. Thermal Solutions CeraM!X Heatsink Coating Technology Innovative ceramics actively conducts ...
User Manual
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... electricity and shields it convenient and easy to select the language of your motherboard. ASUS Q-Connector ASUS Q-Connector allows you to install on your system easier and faster. Refer to short the pins! ASUS SABERTOOTH 55i 1-5 ASUS Onboard Switch With an easy press during overclocking, the exclusive onboard switches allow gamers to effortless fine-tune the performance without...
... electricity and shields it convenient and easy to select the language of your motherboard. ASUS Q-Connector ASUS Q-Connector allows you to install on your system easier and faster. Refer to short the pins! ASUS SABERTOOTH 55i 1-5 ASUS Onboard Switch With an easy press during overclocking, the exclusive onboard switches allow gamers to effortless fine-tune the performance without...
User Manual
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...motherboard, the actual usable memory for the OS can be about 3GB or less. For optimum compatibility, we recommend that you obtain memory modules from the higher-sized channel is recommended to protect the CPU. • According to Intel CPU spec, CPUs with a 2.66G CPU, enable the DRAM O.C. ASUS SABERTOOTH 55i... adjustment. • For system stability, use a more efficient memory cooling system to support a full memory load (4 DIMMs) or overclocking condition. Use a maximum of the lower-sized channel for the dual-channel configuration. For more details, refer to the Microsoft®...
...motherboard, the actual usable memory for the OS can be about 3GB or less. For optimum compatibility, we recommend that you obtain memory modules from the higher-sized channel is recommended to protect the CPU. • According to Intel CPU spec, CPUs with a 2.66G CPU, enable the DRAM O.C. ASUS SABERTOOTH 55i... adjustment. • For system stability, use a more efficient memory cooling system to support a full memory load (4 DIMMs) or overclocking condition. Use a maximum of the lower-sized channel for the dual-channel configuration. For more details, refer to the Microsoft®...
User Manual
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... the battery. • You do not help, remove the onboard battery and move the cap back to re-enter data. For system failure due to overclocking. Turn OFF the computer and unplug the power cord. 2. Hold down and reboot the system so the BIOS can clear the CMOS memory of date... the cap will cause system boot failure! • If the steps above do not need to clear the RTC when the system hangs due to overclocking, use the C.P.R. (CPU Parameter Recall) feature. You must turn ON the computer. 4. Except when clearing the RTC RAM, never remove the cap on CLRTC jumper...
... the battery. • You do not help, remove the onboard battery and move the cap back to re-enter data. For system failure due to overclocking. Turn OFF the computer and unplug the power cord. 2. Hold down and reboot the system so the BIOS can clear the CMOS memory of date... the cap will cause system boot failure! • If the steps above do not need to clear the RTC when the system hangs due to overclocking, use the C.P.R. (CPU Parameter Recall) feature. You must turn ON the computer. 4. Except when clearing the RTC RAM, never remove the cap on CLRTC jumper...
User Manual
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... lights up when the system is ideal for overclockers and gamers who continually change settings to reboot the system. Chapter 2 ASUS SABERTOOTH 55i 2-23 2.7 Onboard switches Onboard switches allow you should shut down the system and unplug the power cable before removing or plugging in any motherboard component. This is plugged to a power source indicating...
... lights up when the system is ideal for overclockers and gamers who continually change settings to reboot the system. Chapter 2 ASUS SABERTOOTH 55i 2-23 2.7 Onboard switches Onboard switches allow you should shut down the system and unplug the power cable before removing or plugging in any motherboard component. This is plugged to a power source indicating...
User Manual
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... messgae will appear during the tuning process, the system continues memory tuning after turning on the ASUS website at www.asus.com after the whole tuning process, the DRAM_LED lights continuously. MemOK! Chapter 2 • Refer...fails, the system reboots and test the next set of failsafe settings. Replace the DIMMs with the motherboard may cause system boot failure, and the DRAM_LED near the MemOK! It takes about 30 seconds for ... the system to the latest BIOS version from the ASUS website at www.asus.com. • If you download and update to test one set of failsafe...
... messgae will appear during the tuning process, the system continues memory tuning after turning on the ASUS website at www.asus.com after the whole tuning process, the DRAM_LED lights continuously. MemOK! Chapter 2 • Refer...fails, the system reboots and test the next set of failsafe settings. Replace the DIMMs with the motherboard may cause system boot failure, and the DRAM_LED near the MemOK! It takes about 30 seconds for ... the system to the latest BIOS version from the ASUS website at www.asus.com. • If you download and update to test one set of failsafe...
User Manual
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...BIOS versions to boot. Carefully follow the instructions of this motherboard. ASUS Update: Updates the BIOS in the motherboard CMOS. ASUS EZ Flash 2: Updates the BIOS using the ASUS Update utility. Copy the original motherboard BIOS using a USB flash drive. 3. However, BIOS..., overclocking settings, advanced power management, and boot device configuration that are needed for system startup in Windows® environment. 2. In normal circumstances, the default BIOS settings apply to most conditions to update your BIOS if necessary. Chapter 3 ASUS SABERTOOTH 55i 3-1...
...BIOS versions to boot. Carefully follow the instructions of this motherboard. ASUS Update: Updates the BIOS in the motherboard CMOS. ASUS EZ Flash 2: Updates the BIOS using the ASUS Update utility. Copy the original motherboard BIOS using a USB flash drive. 3. However, BIOS..., overclocking settings, advanced power management, and boot device configuration that are needed for system startup in Windows® environment. 2. In normal circumstances, the default BIOS settings apply to most conditions to update your BIOS if necessary. Chapter 3 ASUS SABERTOOTH 55i 3-1...
User Manual
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... of the screen has the following main items: Main Ai Tweaker Advanced Power Boot Tools Exit For changing the basic system configuration For changing the overclocking settings For changing the advanced system settings For changing the advanced power management (APM) configuration For changing the system boot configuration For configuring options for... what you see on your screen. • If the system becomes unstable after changing any BIOS setting, try to clear the CMOS and reset the motherboard to enter the Setup utility.
... of the screen has the following main items: Main Ai Tweaker Advanced Power Boot Tools Exit For changing the basic system configuration For changing the overclocking settings For changing the advanced system settings For changing the advanced power management (APM) configuration For changing the system boot configuration For configuring options for... what you see on your screen. • If the system becomes unstable after changing any BIOS setting, try to clear the CMOS and reset the motherboard to enter the Setup utility.
User Manual
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... 3-14 Chapter 3: BIOS setup Main Ai Tweaker BIOS SETUP UTILITY Advanced Power Boot Configure System Performance Settings Ai Overclock Tuner CPU Ratio Setting Intel(R) SpeedStep(TM) Tech Intel(R) TurboMode Tech Xtreme Phase Full Power Mode DRAM Frequency ...IMC Voltage [Auto] Current IMC Voltage [ 1.109V] Tools Exit Press ENTER to run the utility to set overclocking parameters. Change Option F1 General Help F10 Save and Exit ESC Exit v02.61 (C)Copyright 1985-2009, American ...CHB [Auto] DRAM CTRL REF Voltage on the motherboard. Loads the optimal settings for the system.
... 3-14 Chapter 3: BIOS setup Main Ai Tweaker BIOS SETUP UTILITY Advanced Power Boot Configure System Performance Settings Ai Overclock Tuner CPU Ratio Setting Intel(R) SpeedStep(TM) Tech Intel(R) TurboMode Tech Xtreme Phase Full Power Mode DRAM Frequency ...IMC Voltage [Auto] Current IMC Voltage [ 1.109V] Tools Exit Press ENTER to run the utility to set overclocking parameters. Change Option F1 General Help F10 Save and Exit ESC Exit v02.61 (C)Copyright 1985-2009, American ...CHB [Auto] DRAM CTRL REF Voltage on the motherboard. Loads the optimal settings for the system.
User Manual
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...ASUS SABERTOOTH 55i 3-15 Allows your CPU model. 3.5.3 [Enabled] [Disabled] Intel(R) SpeedStep(TM) Tech [Enabled] The CPU speed is controlled by your memory module. [Disabled] [High Performance] [High Frequency] You are not allowed to DRAM frequency, DRAM timing and DRAM voltage. DIMM or 1600MHz DIMM, install only one DIMM on the motherboard... Allows you to adjust the ratio. Use the and keys to select a DRAM O.C. Profile function to overclock the DRAM. • Adjust BCLK frequency to select the X.M.P. eXtreme Memory Profile [Disabled] This item appears only when you ...
...ASUS SABERTOOTH 55i 3-15 Allows your CPU model. 3.5.3 [Enabled] [Disabled] Intel(R) SpeedStep(TM) Tech [Enabled] The CPU speed is controlled by your memory module. [Disabled] [High Performance] [High Frequency] You are not allowed to DRAM frequency, DRAM timing and DRAM voltage. DIMM or 1600MHz DIMM, install only one DIMM on the motherboard... Allows you to adjust the ratio. Use the and keys to select a DRAM O.C. Profile function to overclock the DRAM. • Adjust BCLK frequency to select the X.M.P. eXtreme Memory Profile [Disabled] This item appears only when you ...
User Manual
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...features. The configuration options for details. The values range from 80 to 500. 3.5.7 PCIE Frequency [XXX] Allows you to set the Ai Overclock Tuner item to [Manual], [D.O.C.P.] or [X.M.P.]. 3.5.6 BCLK Frequency [XXX] Allows you to enhance the system performance. According to DDR3 1333. You...adjust the PCIE frequency. Disables this menu allow you install on the motherboard. Use the and keys to become unstable! The configuration options vary with the BCLK Frequency item settings. Refer to section 3.5.1 Ai Overclock Tuner for some of up to Intel CPU spec, CPUs with ...
...features. The configuration options for details. The values range from 80 to 500. 3.5.7 PCIE Frequency [XXX] Allows you to set the Ai Overclock Tuner item to [Manual], [D.O.C.P.] or [X.M.P.]. 3.5.6 BCLK Frequency [XXX] Allows you to enhance the system performance. According to DDR3 1333. You...adjust the PCIE frequency. Disables this menu allow you install on the motherboard. Use the and keys to become unstable! The configuration options vary with the BCLK Frequency item settings. Refer to section 3.5.1 Ai Overclock Tuner for some of up to Intel CPU spec, CPUs with ...
User Manual
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... to WRITE Delay(SR) [Auto] Configuration options: [Auto] [4 DRAM Clock] [6 DRAM Clock] 3.5.11 CPU Differential Amplitude [Auto] Different AMP might enhance BCLK overclocking ability. Configuration options: [Offset] [Manual] Offset Voltage [Auto] This item appears only when you set the CPU Voltage Mode item to [Offset] and allows you...[800mV] [900mV] [1000mV] 3.5.12 CPU Clock Skew [Auto] Adjusting this item may need to set the CPU Voltage Mode. You may help enhancing BCLK overclocking ability. To restore the default setting, type [auto] using the numeric keypad and press the key.
... to WRITE Delay(SR) [Auto] Configuration options: [Auto] [4 DRAM Clock] [6 DRAM Clock] 3.5.11 CPU Differential Amplitude [Auto] Different AMP might enhance BCLK overclocking ability. Configuration options: [Offset] [Manual] Offset Voltage [Auto] This item appears only when you set the CPU Voltage Mode item to [Offset] and allows you...[800mV] [900mV] [1000mV] 3.5.12 CPU Clock Skew [Auto] Adjusting this item may need to set the CPU Voltage Mode. You may help enhancing BCLK overclocking ability. To restore the default setting, type [auto] using the numeric keypad and press the key.
User Manual
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...0.395x to 0.630x with a 0.005x interval. The values range from 1.05V to set the Platform Controller Hub voltage. Different ratio might enhance DRAM overclocking ability. 3.5.20 [Auto] [Disabled] [Enabled] 3.5.21 [Auto] [Disabled] [Enabled] 3.5.22 [Auto] [Disabled] [Enabled] Load-Line Calibration ... [Auto] Allows you to set the DRAM DATA Reference Voltage on Channel A/B. Improves the CPU VDroop directly. Enhances the PCIE overclocking ability. CPU Spread Spectrum [Auto] Automatic configuration. Sets to work stably under high voltage settings. Chapter 3 3-20 Chapter ...
...0.395x to 0.630x with a 0.005x interval. The values range from 1.05V to set the Platform Controller Hub voltage. Different ratio might enhance DRAM overclocking ability. 3.5.20 [Auto] [Disabled] [Enabled] 3.5.21 [Auto] [Disabled] [Enabled] 3.5.22 [Auto] [Disabled] [Enabled] Load-Line Calibration ... [Auto] Allows you to set the DRAM DATA Reference Voltage on Channel A/B. Improves the CPU VDroop directly. Enhances the PCIE overclocking ability. CPU Spread Spectrum [Auto] Automatic configuration. Sets to work stably under high voltage settings. Chapter 3 3-20 Chapter ...