User Manual
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... 2-1 2.1 Managing and updating your BIOS 2-1 2.1.1 ASUS Update 2-1 2.1.2 ASUS EZ Flash 2 2-2 2.1.3 ASUS CrashFree BIOS 3 utility 2-3 2.1.4 ASUS BIOS Updater 2-4 2.2 BIOS setup program 2-7 Entering BIOS Setup at startup 2-7 Entering BIOS Setup after POST 2-7 2.3 Main menu 2-7 2.3.1 SATA 1-6 2-8 2.3.2 Storage Configuration 2-8 2.3.3 AHCI Configuration 2-9 2.3.4 System Information 2-9 2.4 Ai Tweaker menu 2-10 2.4.1 CPU Level Up 2-10 2.4.2 Ai Overclock Tuner 2-11 2.4.3 CPU Ratio Setting 2-12...
... 2-1 2.1 Managing and updating your BIOS 2-1 2.1.1 ASUS Update 2-1 2.1.2 ASUS EZ Flash 2 2-2 2.1.3 ASUS CrashFree BIOS 3 utility 2-3 2.1.4 ASUS BIOS Updater 2-4 2.2 BIOS setup program 2-7 Entering BIOS Setup at startup 2-7 Entering BIOS Setup after POST 2-7 2.3 Main menu 2-7 2.3.1 SATA 1-6 2-8 2.3.2 Storage Configuration 2-8 2.3.3 AHCI Configuration 2-9 2.3.4 System Information 2-9 2.4 Ai Tweaker menu 2-10 2.4.1 CPU Level Up 2-10 2.4.2 Ai Overclock Tuner 2-11 2.4.3 CPU Ratio Setting 2-12...
User Manual
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... to 500MHz at 1MHz increment Overclocking Protection: - P7P55D-E LX specifications summary ASUS Q-Design ASUS Unique Features ASUS Exclusive Overclocking Features ASUS Q-LED (DRAM) ASUS Q-Slot ASUS Q-DIMM ASUS IO Level UP for Ultra Performance - True USB 3.0 or True SATA 6Gb/s Support ASUS Xtreme Design ASUS Exclusive Overclocking Features - ASUS EPU ASUS Quiet Thermal Solution: - Express Gate - ASUS Noise Filter ASUS EZ DIY: - Profile - ASUS CrashFree BIOS 3 - Multi-language BIOS...
... to 500MHz at 1MHz increment Overclocking Protection: - P7P55D-E LX specifications summary ASUS Q-Design ASUS Unique Features ASUS Exclusive Overclocking Features ASUS Q-LED (DRAM) ASUS Q-Slot ASUS Q-DIMM ASUS IO Level UP for Ultra Performance - True USB 3.0 or True SATA 6Gb/s Support ASUS Xtreme Design ASUS Exclusive Overclocking Features - ASUS EPU ASUS Quiet Thermal Solution: - Express Gate - ASUS Noise Filter ASUS EZ DIY: - Profile - ASUS CrashFree BIOS 3 - Multi-language BIOS...
User Manual
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Profile feature in BIOS. Under the default state, some memory modules for overclocking may install varying memory sizes in Channel A and Channel B. To operate at the vendor-marked or at a higher frequency, refer to install 4GB or more ... on its Serial Presence Detect (SPD), which is the standard way of the following: - Refer to section Ai Overclock Tuner for single-channel operation. • Due to support a full memory load (4 DIMMs) or overclocking condition. 1-10 Chapter 1: Product introduction Use a maximum of 3GB system memory if you are supported for the dual...
Profile feature in BIOS. Under the default state, some memory modules for overclocking may install varying memory sizes in Channel A and Channel B. To operate at the vendor-marked or at a higher frequency, refer to install 4GB or more ... on its Serial Presence Detect (SPD), which is the standard way of the following: - Refer to section Ai Overclock Tuner for single-channel operation. • Due to support a full memory load (4 DIMMs) or overclocking condition. 1-10 Chapter 1: Product introduction Use a maximum of 3GB system memory if you are supported for the dual...
User Manual
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...each memory channel. • According to Intel spec definition, DDR3-1600 is subject to section 2.4.2 Ai Overclock Tuner for details. • Visit the ASUS website for the latest QVL. 1-16 Chapter 1: Product introduction G.SKILL F3-17066CL9T-6GB-T Size SS/...8 1.9 •• 9 1.9 •• 9-8-8(1066-8-7-7-20) 1.8 ••• 9-9-9-24 ••• 9-9-9-24(1066-7-7-7-20) 2 •• P7P55D-E LX Motherboard Qualified Vendors Lists (QVL) DDR3-2133MHz capability for CPU at 2.8 and 2.93GHz Vendor Part No. Size SS/ DS Chip Brand Chip NO...
...each memory channel. • According to Intel spec definition, DDR3-1600 is subject to section 2.4.2 Ai Overclock Tuner for details. • Visit the ASUS website for the latest QVL. 1-16 Chapter 1: Product introduction G.SKILL F3-17066CL9T-6GB-T Size SS/...8 1.9 •• 9 1.9 •• 9-8-8(1066-8-7-7-20) 1.8 ••• 9-9-9-24 ••• 9-9-9-24(1066-7-7-7-20) 2 •• P7P55D-E LX Motherboard Qualified Vendors Lists (QVL) DDR3-2133MHz capability for CPU at 2.8 and 2.93GHz Vendor Part No. Size SS/ DS Chip Brand Chip NO...
User Manual
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To erase the RTC RAM: 1. Move the jumper cap from pins 1-2 (default) to overclocking, use the C.P.R. (CPU Parameter Recall) feature. Except when clearing the RTC RAM, never remove the cap on pins 2-3 for about 5-10 seconds, then move the ... (RTC) RAM in CMOS, which include system setup information such as system passwords. You can automatically reset parameter settings to default values. • Due to overclocking.
To erase the RTC RAM: 1. Move the jumper cap from pins 1-2 (default) to overclocking, use the C.P.R. (CPU Parameter Recall) feature. Except when clearing the RTC RAM, never remove the cap on pins 2-3 for about 5-10 seconds, then move the ... (RTC) RAM in CMOS, which include system setup information such as system passwords. You can automatically reset parameter settings to default values. • Due to overclocking.
User Manual
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... different test processes. • If the installed DIMMs still fail to BIOS overclocking, press the MemOK! To stop memory tuning, turn off the system and reinstall the DIMM before using the MemOK! ASUS P7P55D-E LX 1-19 MemOK! switch Installing DIMMs that you turn off the computer and unplog...load BIOS default settings. function. switch until the DRAM_LED starts blinking to enhance system performance. 1. This is ideal for overclockers and gamers who continually change settings to begin automatic memory compatibility tuning for the system to the latest BIOS version from the...
... different test processes. • If the installed DIMMs still fail to BIOS overclocking, press the MemOK! To stop memory tuning, turn off the system and reinstall the DIMM before using the MemOK! ASUS P7P55D-E LX 1-19 MemOK! switch Installing DIMMs that you turn off the computer and unplog...load BIOS default settings. function. switch until the DRAM_LED starts blinking to enhance system performance. 1. This is ideal for overclockers and gamers who continually change settings to begin automatic memory compatibility tuning for the system to the latest BIOS version from the...
User Manual
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...PCIE Spread Spectrum [Auto] v02.61 (C)Copyright 1985-2009, American Megatrends, Inc. 2.4.1 CPU Level Up [Auto] Allows you to configure overclocking-related items. Be cautious when changing the settings of the Ai Tweaker menu items. Incorrect field values can cause the system to malfunction.... selected CPU level. Main Ai Tweaker BIOS SETUP UTILITY Advanced Power Boot Tools Exit Configure System Performance Settings CPU Level UP [Auto Ai Overclock Tuner [Auto] CPU Ratio Setting [Auto] Intel(R) SpeedStep(TM) Tech [Enabled] Intel(R) TurboMode Tech [Enabled] Xtreme Phase Full Power...
...PCIE Spread Spectrum [Auto] v02.61 (C)Copyright 1985-2009, American Megatrends, Inc. 2.4.1 CPU Level Up [Auto] Allows you to configure overclocking-related items. Be cautious when changing the settings of the Ai Tweaker menu items. Incorrect field values can cause the system to malfunction.... selected CPU level. Main Ai Tweaker BIOS SETUP UTILITY Advanced Power Boot Tools Exit Configure System Performance Settings CPU Level UP [Auto Ai Overclock Tuner [Auto] CPU Ratio Setting [Auto] Intel(R) SpeedStep(TM) Tech [Enabled] Intel(R) TurboMode Tech [Enabled] Xtreme Phase Full Power...
User Manual
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...ASUS exclusive DRAM O.C. If you to set overclocking parameters. mode supported by your memory module(s) for using DIMMs with a frequncy higher than the Intel® CPU spec, use this item to individually set the profile(s) supported by adjusting BCLK frequency. ASUS P7P55D-E LX ...2-11 DIMM or 1600MHz DIMM, install only one of the preset overclocking configuration options: Manual Auto D.O.C.P X.M.P. 2.4.2 Ai Overclock Tuner [Auto] Allows selection of the X.M.P.
...ASUS exclusive DRAM O.C. If you to set overclocking parameters. mode supported by your memory module(s) for using DIMMs with a frequncy higher than the Intel® CPU spec, use this item to individually set the profile(s) supported by adjusting BCLK frequency. ASUS P7P55D-E LX ...2-11 DIMM or 1600MHz DIMM, install only one of the preset overclocking configuration options: Manual Auto D.O.C.P X.M.P. 2.4.2 Ai Overclock Tuner [Auto] Allows selection of the X.M.P.
User Manual
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... speed. Enables Full Power Mode to adjust the Internal Base Clock (BCLK). BCLK Frequency [XXX] Allows you to ensure the best CPU overclocking performance. Profile feature in specific condition. Configuration options: [Auto] [3200MHz] [3733MHz] [4800MHz] [5333MHz] [5867MHz] 2-12 Chapter 2:... or [X.M.P.]. Configuration options: [Disabled] [Enabled] 2.4.5 Intel(R) TurboMode Tech [Enabled] This item appears only if you set the Ai Overclock Tuner item to [Enabled], the CPU speed is controlled by the operating system. The following two items appear only when you set the...
... speed. Enables Full Power Mode to adjust the Internal Base Clock (BCLK). BCLK Frequency [XXX] Allows you to ensure the best CPU overclocking performance. Profile feature in specific condition. Configuration options: [Auto] [3200MHz] [3733MHz] [4800MHz] [5333MHz] [5867MHz] 2-12 Chapter 2:... or [X.M.P.]. Configuration options: [Disabled] [Enabled] 2.4.5 Intel(R) TurboMode Tech [Enabled] This item appears only if you set the Ai Overclock Tuner item to [Enabled], the CPU speed is controlled by the operating system. The following two items appear only when you set the...
User Manual
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... WRITE Delay (DR) [Auto] Configuration options: [Auto] [2 DRAM Clock] - [9 DRAM Clock] DRAM WRITE To WRITE Delay (SR) [Auto] Configuration options: [Auto] [4 DRAM Clock] [6 DRAM Clock] ASUS P7P55D-E LX 2-13 2.4.9 DRAM Timing Control [Auto] The items in this menu allow you install on the motherboard. 1st Information: 5-5-5-15-4-36-6-5-16 The values vary depending...;n�d�i�n�g��o�n��th�e��D�I�M��M�s� you to [1N] might enhance DRAM overclocking performance.
... WRITE Delay (DR) [Auto] Configuration options: [Auto] [2 DRAM Clock] - [9 DRAM Clock] DRAM WRITE To WRITE Delay (SR) [Auto] Configuration options: [Auto] [4 DRAM Clock] [6 DRAM Clock] ASUS P7P55D-E LX 2-13 2.4.9 DRAM Timing Control [Auto] The items in this menu allow you install on the motherboard. 1st Information: 5-5-5-15-4-36-6-5-16 The values vary depending...;n�d�i�n�g��o�n��th�e��D�I�M��M�s� you to [1N] might enhance DRAM overclocking performance.
User Manual
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... the CPU Vcore voltage. Setting a high VCore voltage may damage the CPU permanently, and setting a low VCore voltage may help enhancing BCLK overclocking ability. The values range from 0.85V to set a fixed CPU voltage. Refer to 2.5V with a 0.00625V interval. Different sub-items.... 2.4.15 CPU PLL Voltage [Auto] Allows you to set the CPU PLL voltage. 2.4.10 CPU Differential Amplitude [Auto] Different AMP might enhance BCLK overclocking ability. The values range from 1.2V to 0.50000V with a 0.02V interval. The values range from 0.00625V to 2.0V with a 0.00625V interval....
... the CPU Vcore voltage. Setting a high VCore voltage may damage the CPU permanently, and setting a low VCore voltage may help enhancing BCLK overclocking ability. The values range from 0.85V to set a fixed CPU voltage. Refer to 2.5V with a 0.00625V interval. Different sub-items.... 2.4.15 CPU PLL Voltage [Auto] Allows you to set the CPU PLL voltage. 2.4.10 CPU Differential Amplitude [Auto] Different AMP might enhance BCLK overclocking ability. The values range from 1.2V to 0.50000V with a 0.02V interval. The values range from 0.00625V to 2.0V with a 0.00625V interval....
User Manual
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PCIE Spread Spectrum [Auto] Automatic configuration. Enhances the PCIE overclocking ability. Sets to [Enabled] for EMI control. Follow Intel specifications. Improve CPU VDroop directly. IMC Voltage DRAM Voltage CPU PLL... 2.4.17 [Auto] [Disabled] [Enabled] 2.4.18 [Auto] [Disabled] [Enabled] 2.4.19 [Auto] [Disabled] [Enabled] Load-Line Calibration [Auto] Automatic configuration. ASUS P7P55D-E LX 2-15 Enhances the BCLK overclocking ability. Sets to [Enabled] for details. • The system may need better cooling system to work stably under high voltage settings. The values...
PCIE Spread Spectrum [Auto] Automatic configuration. Enhances the PCIE overclocking ability. Sets to [Enabled] for EMI control. Follow Intel specifications. Improve CPU VDroop directly. IMC Voltage DRAM Voltage CPU PLL... 2.4.17 [Auto] [Disabled] [Enabled] 2.4.18 [Auto] [Disabled] [Enabled] 2.4.19 [Auto] [Disabled] [Enabled] Load-Line Calibration [Auto] Automatic configuration. ASUS P7P55D-E LX 2-15 Enhances the BCLK overclocking ability. Sets to [Enabled] for details. • The system may need better cooling system to work stably under high voltage settings. The values...