ASRock P67 Extreme4 Gen3 manual OC Tweaker Screen

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3.3 OC Tweaker Screen

In the OC Tweaker screen, you can set up overclocking features.

EZ OC

Use this item to load EZ overclocking setting. Please note that overclocking may cause damage to your components and motherboard. It should be done at your own risk and expense.

CPU Ratio Setting

Use this item to change the ratio value of this motherboard.

Intel SpeedStep Technology

Intel SpeedStep technology is Intel’s new power saving technology. Pro- cessor can switch between multiple frequency and voltage points to en- able power savings. The default value is [Enabled]. Configuration options: [Auto], [Enabled] and [Disabled]. If you install Windows® XP and select [Auto], you need to set the “Power Schemes” as “Portable/Laptop” to en- able this function. If you install Windows® VistaTM / 7 and want to enable this function, please set this item to [Enabled]. This item will be hidden if the current CPU does not support Intel SpeedStep technology.

Please note that enabling this function may reduce CPU voltage and lead to system stability or compatibility issue with some power supplies. Please set this item to [Disable] if above issue occurs.

Core Current Limit

Use this item to add voltage when CPU is in Turbo mode.

Host Clock Override (BCLK)

Use this to adjust the host clock (BCLK) frequency. Min: 95MHz, Max: 110MHz.

Spread Spectrum

This item should always be [Auto] for better system stability.

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Contents P67 Extreme4 Gen3 Copyright Notice DisclaimerContents Introduction Uefi Menu Bar Utilities MenuPackage Contents IntroductionSpecifications USB3.0 ConnectorSmart Switch Bios Feature Unique FeatureSupport CD HardwarePage Page Page Motherboard Layout 24.4cm 9.6Table for Audio Output Connection I/O PanelLAN Port LED Indications Page Pre-installation Precautions Screw HolesCPU Installation Page Installation of CPU Fan and Heatsink Installation of Memory Modules Dimm Dual Channel Memory ConfigurationsInstalling a Dimm Notch break BreakPcie slots Installing an expansion cardExpansion Slots PCI and PCI Express Slots Slitm and Quad Slitm Operation Guide RequirementsASRock SLIBridge2S Card Double-click Nvidia Settings icon on your Windows taskbar Driver Installation and SetupFor Windows XP / XP 64-bit OS For Slitm mode only Select Nvidia Control Panel tab Select Control Panel tabPage CrossFire Bridge Installing Three CrossFireXTM-Ready Graphics Cards CrossFireTM Bridge For Windows 7 / VistaTM OS Install the required drivers to your systemFor Windows XP OS Page Surround Display Feature Jumpers Setup\ Surround Display Information DescriptionOnboard Headers and Connectors USB 2.0 Headers USB 3.0 HeaderFunctions System Panel HeaderSeveral system front panel Chassis Speaker Header Speaker to this headerATX 12V Power Connector ATX Power Connector Please connect an ATX powerSupply to this connector Serial port module Installation Guide of Front USB 3.0 PanelSerial port Header Installation Guide of Rear USB 3.0 Bracket Smart Switches13 Dr. Debug Status Code DescriptionPage Page Page Serial ATA3 SATA3 Hard Disks Installation What is Hot Plug Function? What is Hot Swap Function?Hot Plug and Hot Swap Functions for Sata / Sataii HDDs Hot Plug and Hot Swap Functions for SATA3 HDDsPoints of attention, before you process the Hot Plug Points of attention, before you process the Hot Plug Points of attention, before you process the Hot UnplugDriver Installation Guide Installing Windows XP / XP 64-bit With RAID FunctionsSet up Uefi Make a Sata / Sataii / SATA3 Driver DisketteSetting Up a RAID Ready System Use RAID Installation Guide to set RAID configurationMigrating a RAID Ready System to RAID 0, RAID 1 or RAID Set up Uefi Installing Windows XP / XP 64-bit Without RAID Functions Page Introduction Uefi Menu BarTo jump to the Exit Screen or exit the current screen Navigation KeysMain Screen OC Tweaker Screen Dram Timing Control Dram Configuration Load XMP Setting RAS# to CAS# Delay tRCDCommand Rate CR Write Recovery Time tWRRAS to RAS Delay tRRD Write to Read Delay tWTRMemory Fast Boot Memory Power Down ModeUse this to select VTT Voltage. The default value is Auto Use this to select Vccsa Voltage. The default value is AutoUser Default VTT VoltageAdvanced Screen Instant FlashCPU Configuration CPU Thermal Throttling Intel Virtualization TechnologyNo-Excute Memory Protection Local x2APICNorth Bridge Configuration Low Mmio AlignVT-d Primary Graphics AdapterSouth Bridge Configuration Onboard Debug Port LED Storage Configuration Marvell SATA3 Operation ModeMarvell SATA3 Bootable Sata ModeSuper IO Configuration Acpi Configuration USB Configuration USB 2.0 ControllerUSB 3.0 Controller Legacy USB SupportHardware Health Event Monitoring Screen Boot Screen Security Screen Exit Screen Software Support Contact InformationInstalling OS on a HDD Larger Than 2TB