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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...ENGINE!" 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 ... irregular surface and enlarged area. Refer to run at lower temperatures and extending their lifespan. ASUS SABERTOOTH 55i 1-3 TUF Cap. & MOSFET (certified by different climate conditions in variety of useful profiles ...both the CPU and chassis fan speeds according to effectively enhance the overclocking capability. Power Design ASUS 12+2 Phase Power Design The groundbreaking 12+2 phase VRM design is ...
...ENGINE!" 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 ... irregular surface and enlarged area. Refer to run at lower temperatures and extending their lifespan. ASUS SABERTOOTH 55i 1-3 TUF Cap. & MOSFET (certified by different climate conditions in variety of useful profiles ...both the CPU and chassis fan speeds according to effectively enhance the overclocking capability. Power Design ASUS 12+2 Phase Power Design The groundbreaking 12+2 phase VRM design is ...
User Manual
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... unique module eliminates the trouble of your favorite settings. ASUS O.C. ASUS Q-Design ASUS Q-Design enhances your favorite settings. Profile The motherboard features the ASUS O.C. ASUS SABERTOOTH 55i 1-5 Refer to page 2-23 for details. ASUS Q-Connector ASUS Q-Connector allows you to easily connect or disconnect the chassis.... Profile that allows you to update the BIOS without having to short the pins! ASUS Onboard Switch With an easy press during overclocking, the exclusive onboard switches allow gamers to effortless fine-tune the performance without using a...
... unique module eliminates the trouble of your favorite settings. ASUS O.C. ASUS Q-Design ASUS Q-Design enhances your favorite settings. Profile The motherboard features the ASUS O.C. ASUS SABERTOOTH 55i 1-5 Refer to page 2-23 for details. ASUS Q-Connector ASUS Q-Connector allows you to easily connect or disconnect the chassis.... Profile that allows you to update the BIOS without having to short the pins! ASUS Onboard Switch With an easy press during overclocking, the exclusive onboard switches allow gamers to effortless fine-tune the performance without using a...
User Manual
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... up to Intel spec definition, X.M.P. Under the default state, some memory modules for overclocking may install varying memory sizes in BIOS. • Always install DIMMs with the same CAS latency. ASUS SABERTOOTH 55i 2-11 Any excess memory from a memory module. To operate at the vendor-marked ...frequency, refer to section 3.5 Ai Tweaker menu for manual memory frequency adjustment. • For system stability, use a more memory on the motherboard, the actual usable memory for the OS can be about 3GB or less. Profile feature in Channel A and Channel B. For effective use DIMMs...
... up to Intel spec definition, X.M.P. Under the default state, some memory modules for overclocking may install varying memory sizes in BIOS. • Always install DIMMs with the same CAS latency. ASUS SABERTOOTH 55i 2-11 Any excess memory from a memory module. To operate at the vendor-marked ...frequency, refer to section 3.5 Ai Tweaker menu for manual memory frequency adjustment. • For system stability, use a more memory on the motherboard, the actual usable memory for the OS can be about 3GB or less. Profile feature in Channel A and Channel B. For effective use DIMMs...
User Manual
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...the Real Time Clock (RTC) RAM in CMOS, which include system setup information such as system passwords. Move the jumper cap from pins 1-2 (default) to overclocking, use the C.P.R. (CPU Parameter Recall) feature. Turn OFF the computer and unplug the power cord. 2. You must turn ON the computer. 4. After ... and plug the power cord before rebooting the system. 2-22 Chapter 2: Hardware information Plug the power cord and turn off is required to overclocking. Removing the cap will cause system boot failure! • If the steps above do not need to clear the RTC when the system ...
...the Real Time Clock (RTC) RAM in CMOS, which include system setup information such as system passwords. Move the jumper cap from pins 1-2 (default) to overclocking, use the C.P.R. (CPU Parameter Recall) feature. Turn OFF the computer and unplug the power cord. 2. You must turn ON the computer. 4. After ... and plug the power cord before rebooting the system. 2-22 Chapter 2: Hardware information Plug the power cord and turn off is required to overclocking. Removing the cap will cause system boot failure! • If the steps above do not need to clear the RTC when the system ...
User Manual
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...-on switch that allows you to power up or wake up when the system is ideal for overclockers and gamers who continually change settings to enhance system performance. 1. Power-on switch The motherboard comes with a power-on switch. 2. This switch also lights up the system. This is ...Onboard switches Onboard switches allow you should shut down the system and unplug the power cable before removing or plugging in any motherboard component. Chapter 2 ASUS SABERTOOTH 55i 2-23 Reset switch Press the reset switch to fine-tune performance when working on a bare or open-case system.
...-on switch that allows you to power up or wake up when the system is ideal for overclockers and gamers who continually change settings to enhance system performance. 1. Power-on switch The motherboard comes with a power-on switch. 2. This switch also lights up the system. This is ...Onboard switches Onboard switches allow you should shut down the system and unplug the power cable before removing or plugging in any motherboard component. Chapter 2 ASUS SABERTOOTH 55i 2-23 Reset switch Press the reset switch to fine-tune performance when working on a bare or open-case system.
User Manual
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...motherboard may cause system boot failure, and the DRAM_LED near the MemOK! To stop memory tuning, turn off the system and reinstall the DIMM before using the MemOK! switch to test one set of the DRAM_LED. • The DRAM_LED also lights when the DIMM is tested. Chapter 2 • Refer to BIOS overclocking... off the computer and replace DIMMs during POST reminding you that the BIOS has been restored to the latest BIOS version from the ASUS website at www.asus.com. • If you turn off the computer and unplug the power cord for the exact location of failsafe settings. If ...
...motherboard may cause system boot failure, and the DRAM_LED near the MemOK! To stop memory tuning, turn off the system and reinstall the DIMM before using the MemOK! switch to test one set of the DRAM_LED. • The DRAM_LED also lights when the DIMM is tested. Chapter 2 • Refer to BIOS overclocking... off the computer and replace DIMMs during POST reminding you that the BIOS has been restored to the latest BIOS version from the ASUS website at www.asus.com. • If you turn off the computer and unplug the power cord for the exact location of failsafe settings. If ...
User Manual
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... message appears on these utilities. Copy the original motherboard BIOS using a USB flash drive. 3. Chapter 3 ASUS SABERTOOTH 55i 3-1 ASUS Update: Updates the BIOS in the motherboard CMOS. Chapter 3: Chapter 3 BIOS setup 3.1 Knowing BIOS BIOS (Basic Input and Output System) stores system hardware settings such as storage device configuration, overclocking settings, advanced power management, and boot device configuration...
... message appears on these utilities. Copy the original motherboard BIOS using a USB flash drive. 3. Chapter 3 ASUS SABERTOOTH 55i 3-1 ASUS Update: Updates the BIOS in the motherboard CMOS. Chapter 3: Chapter 3 BIOS setup 3.1 Knowing BIOS BIOS (Basic Input and Output System) stores system hardware settings such as storage device configuration, overclocking settings, advanced power management, and boot device configuration...
User Manual
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...Exit Menu for details. • If the system fails to boot after changing any BIOS setting, try to clear the CMOS and reset the motherboard to enter Setup after POST, restart the system by pressing + + , or by turning the system off and then back on top 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...
...Exit Menu for details. • If the system fails to boot after changing any BIOS setting, try to clear the CMOS and reset the motherboard to enter Setup after POST, restart the system by pressing + + , or by turning the system off and then back on top 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...
User Manual
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... frequency by your memory modules for optimizing the system performance. 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 QPII Frequency [Auto] [Auto] [Enabled] [Enabled] [... 1985-2009, American Megatrends, Inc. If you install memory modules supporting the eXtreme Memory Profile (X.M.P.) Technology, choose this chapter vary depending on the motherboard. The configuration options for the system.
... frequency by your memory modules for optimizing the system performance. 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 QPII Frequency [Auto] [Auto] [Enabled] [Enabled] [... 1985-2009, American Megatrends, Inc. If you install memory modules supporting the eXtreme Memory Profile (X.M.P.) Technology, choose this chapter vary depending on the motherboard. The configuration options for the system.
User Manual
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The configuration options for the following sub-items vary depending on the motherboard. DRAM O.C. Configuration options: [DDR3-1600MHz] [DDR3-1800MHz] [DDR3-1866MHz] [DDR3-2000MHz] DRAM Frequency (MHz) 1333 1600 Above 1600 CPU Frequency (GHz... a better performance after applying the D.O.C.P function. Chapter 3 ASUS SABERTOOTH 55i 3-15 Profile [DDR3-1600MHz] This item appears only when you set the Ai Overclock Tuner item to [X.M.P.] and allows you to select the X.M.P. Auto D.O.C.P. Profile function to overclock the DRAM. • Adjust BCLK frequency to adjust the ratio...
The configuration options for the following sub-items vary depending on the motherboard. DRAM O.C. Configuration options: [DDR3-1600MHz] [DDR3-1800MHz] [DDR3-1866MHz] [DDR3-2000MHz] DRAM Frequency (MHz) 1333 1600 Above 1600 CPU Frequency (GHz... a better performance after applying the D.O.C.P function. Chapter 3 ASUS SABERTOOTH 55i 3-15 Profile [DDR3-1600MHz] This item appears only when you set the Ai Overclock Tuner item to [X.M.P.] and allows you to select the X.M.P. Auto D.O.C.P. Profile function to overclock the DRAM. • Adjust BCLK frequency to adjust the ratio...
User Manual
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... very high DRAM frequency may cause the system to adjust the PCIE frequency. If this function. The following items vary depending on the motherboard. You can also key in specific condition. The values range from 80 to 500. 3.5.7 PCIE Frequency [XXX] Allows you to set... of a higher frequency with a core frequency of 2.66G support the maximum DIMM frequency of the following two items appear only when you 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 set the DRAM timing control features. Chapter 3 3-16 Chapter 3: ...
... very high DRAM frequency may cause the system to adjust the PCIE frequency. If this function. The following items vary depending on the motherboard. You can also key in specific condition. The values range from 80 to 500. 3.5.7 PCIE Frequency [XXX] Allows you to set... of a higher frequency with a core frequency of 2.66G support the maximum DIMM frequency of the following two items appear only when you 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 set the DRAM timing control features. Chapter 3 3-16 Chapter 3: ...
User Manual
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... - [9 DRAM Clock] DRAM WRITE to adjust the CPU Clock Skew item at the same time. Chapter 3 3-18 Chapter 3: BIOS setup You may help enhancing BCLK overclocking ability. Different sub-items appear according to set the CPU Voltage Mode item to [Offset] and allows you set the Offset voltage. Configuration options: [Offset... may need 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. The values range from 0.00625V to 0.50000V with a 0.00625V interval.
... - [9 DRAM Clock] DRAM WRITE to adjust the CPU Clock Skew item at the same time. Chapter 3 3-18 Chapter 3: BIOS setup You may help enhancing BCLK overclocking ability. Different sub-items appear according to set the CPU Voltage Mode item to [Offset] and allows you set the Offset voltage. Configuration options: [Offset... may need 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. The values range from 0.00625V to 0.50000V with a 0.00625V interval.
User Manual
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...to the table below for details. • The system may need better cooling system to 0.630x with a 0.10V interval. 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 [.... Sets to 1.15V with a 0.005x interval. Sets to set the DRAM Control Reference Voltage on Channel A/B. Enhances the BCLK overclocking ability. CPU Spread Spectrum [Auto] Automatic configuration. Current PCH Voltage Displays the current PCH voltage. • The values of the...
...to the table below for details. • The system may need better cooling system to 0.630x with a 0.10V interval. 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 [.... Sets to 1.15V with a 0.005x interval. Sets to set the DRAM Control Reference Voltage on Channel A/B. Enhances the BCLK overclocking ability. CPU Spread Spectrum [Auto] Automatic configuration. Current PCH Voltage Displays the current PCH voltage. • The values of the...