Asus F2A55-M manual Dram Voltage Auto, 11 SB 1.1V Voltage Auto, 12 1.1Vsb Voltage Auto, Digi+ Vrm

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2.4.10DRAM Voltage [Auto]

Allows you to set the DRAM voltage. The values range from 1.35V to 2.00V with a 0.005V interval.

2.4.11SB 1.1V Voltage [Auto]

Allows you to set the Southbridge 1.1V voltage. The values range from 1.1V to 1.4V with a 0.01V interval.

2.4.121.1Vsb Voltage [Auto]

Allows you to set the 1.1Vsb voltage. The values range from 1.1000V to 1.4000V with a 0.1V interval.

2.4.13APU1.2V Voltage [Auto]

Allows you to set the APU (Accelerated Processor Unit) 1.2V voltage. The values range from 1.2000V to 1.8000V with a 0.01V interval.

2.4.14VDDA Voltage [Auto]

Allows you to set the VDDA voltage. The values range from 2.5000V to 2.8000V with a 0.1V interval.

• The values of the CPU Offset Voltage, VDDNB Offset Voltage, DRAM Voltage, SB 1.1V Voltage, 1.1Vsb Voltage, APU1.2V Voltage, and VDDA Voltage items are labeled in different color, indicating the risk levels of high voltage settings.

The system may need better cooling system to work stably under high voltage settings.

2.4.15DIGI+ VRM

CPU Load-Line Calibration [Auto]

Load-line Calibration is defined by AMD VRM specifications and affects CPU voltage. The CPU working voltage will decrease proportionally to CPU loading. Higher load-line calibration would get higher voltage and better overclocking performance, but increase the CPU and VRM thermal. This item allows you to adjust the voltage range from the following percentages to boost the system performance: 0% (Regular), 60% (Medium), 80% (High), and 100% (Extreme). Configuration options: [Auto] [Regular] [Medium] [High] [Extreme]

The actual performance boost may vary depending on your CPU specification.

CPU/NB Load Line Calibration [Auto]

Allows you to select the CPU/NB Load-Line Calibration mode.

Configuration options: [Auto] [Regular] [High] [Extreme]

CPU Current Capability [100%]

This item provides wider total power range for overclocking. A higher value brings a wider total power range and extends the overclocking frequency range simultaneously.

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Chapter 2: Getting started

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Contents Motherboard E7489 First Edition August Contents Bios information Ai Tweaker menuAppendices CPU / PWR / Chassis Fan Speed xxxx RPM or Ignore / N/AOperation safety Safety informationElectrical safety How this guide is organized Where to find more informationAbout this guide Bold text Conventions used in this guideTypography F2A55-M specifications summary ASMedia USB3.0 ControllerAsus Quiet Thermal Solution Asus unique features Asus Digital Power DesignAsus Exclusive Features Precision TweakerBack Panel I/O ports Package contents Special features Product highlightsInnovative Asus features DIGI+VRMAsus Quiet Thermal Solution Asus MyLogo2 Asus CrashFree BiosBefore you proceed Asus EZ FlashScrew holes Placement directionMotherboard overview Motherboard layout F2A55-MLayout contents Accelerated Processing Unit APUInstalling the APU APU heatsink and fan assembly installation To install the APU heatsink and fan assemblyTo uninstall the APU heatsink and fan assembly F2A55-M 240-pin DDR3 Dimm sockets System memoryOverview Memory configurations DDR3-2250 O.C. MHz capabilityDDR3-2000 O.C. MHz capability DDR3-2200 O.C. MHz capabilityDDR3-2133 O.C. MHz capability DDR3-1866 O.C. MHz capabilityDDR3-1600 MHz capability DPLD9UDDR3-1333 MHz capability On the next Product introduction OJD12D9LGK DDR3-1066 MHz capability Dimm supportInstalling a Dimm Removing a DimmExpansion slots Installing an expansion cardConfiguring an expansion card PCI slotPCI Express x16 slots IRQ assignments for this motherboardF2A55-M Clear RTC RAM JumpersClear RTC RAM 3-pin Clrtc LAN port LED indications ConnectorsRear panel connectors Audio 2, 4, 6, or 8-channel configuration ChannelF2A55-M Front panel audio connector Internal connectorsFront panel audio connector 10-1 pin Aafp Digital audio connector 4-1 pin SpdifoutTPM connector 20-1 pin TPM ATX power connectors 24-pin EATXPWR, 4-pin ATX12VF2A55-M ATX power connectors F2A55-M Fan connectors Serial port connector 10-1 pin COMF2A55-M Serial port COM connector USB connectors 10-1 pin USB56, USB78, USB910 F2A55-M USB2.0 connectorsF2A55-M Sata 3.0Gb/s connectors AMD A55 Serial ATA 3.0Gb/s connectors 7-pin SATA3G1~6 blueF2A55-M System panel connector System power LED 2-pin Pled F2A55-M MemOK! switch Onboard switchesMemOK! switch Standby Power LED GPU Boost switchF2A55-M GPU Boost switch Onboard LEDsGPU Boost LED F2A55-M GPU Boost LEDSupport DVD information Installing an operating systemSoftware support To run the Support DVDInstalling Asus Update Managing and updating your BiosAsus Update utility Updating the BiosTo update the Bios using EZ Flash Asus EZ FlashTo recover the Bios Asus CrashFree Bios 3 utilityRecovering the Bios Booting the system in DOS environment Asus Bios UpdaterBefore updating Bios Updating the Bios file To update the Bios file using Bios UpdaterEntering Bios Setup after Post Bios setup programEntering Bios Setup at startup To enter Bios Setup at startupBios menu screen EZ ModeAdvanced Mode Menu barBack button Configuration fieldsMenu items Submenu itemsSystem Date Day xx/xx/xxxx Main menuSystem Language English System TimeTo set an administrator password Administrator PasswordUser Password To change an administrator passwordAi Tweaker menu Scroll down to display the following items Memory Frequency Auto EPU Power Saving Mode DisabledAi Overclock Tuner Auto APU Multiplier AutoOC Tuner CPU Voltage Offset ModeGPU Boost Auto Dram Timing Control12 1.1Vsb Voltage Auto Dram Voltage Auto11 SB 1.1V Voltage Auto 13 APU1.2V Voltage AutoCPU/NB Current Capability 100% CPU Power Phase Control StandardCPU Power Duty Control T.Probe CPU Voltage Frequency AutoCPU Configuration Advanced menuSata Configuration Onboard Devices Configuration USB ConfigurationNB Configuration 6 APM Network Stack CPU / PWR / Chassis Fan Speed xxxx RPM or Ignore / N/A CPU Temperature / MB Temperature xxxºC/xxxºFMonitor menu CPU Fan Speed Low Limit 200 RPM CPU Q-Fan Control EnabledChafan Q-Fan Control Enabled Chafan Fan Speed Low Limit 600 RPMChafan Fan Profile Standard Anti Surge Support EnabledCPU Voltage, 3.3V Voltage, 5V Voltage, 12V Voltage Boot menu Fast Boot Enabled Bootup NumLock State OnFull Screen Logo Enabled Post Logo Delay Time 3 secCSM Parameters Next boot after AC Power Loss Normal BootSecurity Boot parameters Boot Override Setup Mode EZ ModeBoot Option Priorities Asus SPD Information Tools menuAsus EZ Flash 2 Utility Asus O.C. ProfileExit menu Getting started Appendices Federal Communications Commission StatementIC Canadian Compliance Statement Canadian Department of Communications StatementAsus Recycling/Takeback Services ReachAsus Computer International America Asus contact informationASUSTeK Computer INC Asus Computer GmbH Germany and AustriaDeclaration of Conformity EC Declaration of ConformityAppendices