ASRock Z87M Extreme4 manual CPU Configuration CPU Ratio, CPU Cache Ratio, BCLK/PCIE Frequency

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Z87M Extreme4

CPU Configuration

CPU Ratio

The CPU speed is determined by the CPU Ratio multiplied with the BCLK. Increasing the CPU Ratio will increase the internal CPU clock speed without affecting the clock speed of other components.

CPU Cache Ratio

The CPU Internal Bus Speed Ratio. The maximum should be the same as the CPU Ratio.

BCLK/PCIE Frequency

The CPU speed is determined by the CPU Ratio multiplied with the BCLK. Increasing the BCLK will increase the internal CPU clock speed but also affect the clock speed of other components.

Spread Spectrum

Enable Spread Spectrum to reduce electromagnetic interference for passing EMI tests. Disable to achieve higher clock speeds when overclocking.

Intel SpeedStep Technology

Intel SpeedStep technology allows processors to switch between multiple frequen- cies and voltage points for better power saving and heat dissipation.

Intel Turbo Boost Technology

Intel Turbo Boost Technology enables the processor to run above its base operating frequency when the operating system requests the highest performance state.

Filter PLL Frequency

CPU BCLK Filter Frequency. Choose 1.6 for better overclocking capabilities.

Long Duration Power Limit

Configure Package Power Limit 1 in watts. When the limit is exceeded, the CPU ratio will be lowered after a period of time. A lower limit can protect the CPU and save power, while a higher limit may improve performance.

Long Duration Maintained

Configure the period of time until the CPU ratio is lowered when the Long Duration Power Limit is exceeded.

English

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Contents Page Disclaimer Copyright NoticeDTS, Inc., All Rights Reserved Contents Software and Utilities Operation Page Introduction Package ContentsPlatform SpecificationsEnglish LAN Bios English Unique Features ASRock Easy RAID Installer ASRock Crashless BiosASRock XFast RAM ASRock OMG Online Management GuardASRock Fast Boot ASRock Easy Driver InstallerASRock Interactive Uefi ASRock Restart to UefiASRock FAN-Tastic Tuning USB3 Motherboard LayoutNo. Description I/O Panel Activity / Link LED Status Description Installation Installing the CPU Z87M Extreme4 English Installing the CPU Fan and Heatsink Dual Channel Memory Configuration Installing Memory Modules DimmEnglish Expansion Slots PCI and PCI Express Slots PCIe Slot ConfigurationsCLRCMOS1 Jumpers SetupPwrbtn Power Switch Onboard Headers and ConnectorsPower LED Header Pin PLED1 Front Panel Audio Header Pin HDAUDIO1 See p.11, No ATX Power Connector Pin ATXPWR1 See p.11, No Chassis Intrusion Header Pin CI1 Slitm and Quad Slitm Operation Guide Installing Two SLITM-Ready Graphics CardsASRock SLIBridge2S Card For Slitm and Quad Slitm mode Driver Installation and SetupCrossFire Bridge Installing Two CrossFireXTM-Ready Graphics CardsInstalling Three CrossFireXTM-Ready Graphics Cards Double-click the AMD Catalyst Control Running The Support CD Installing DriversDrivers Menu Utilities MenuInstalling A-Tuning TuningUsing A-Tuning Operation ModeXFast RAM ToolsSystem Info OC TweakerTech Service System Requirements Intel Rapid Start TechnologyConfiguring Rapid Start Setup GuideDouble-click the Intel Rapid Start Technology Manager icon Using Rapid Start English Intel Smart Connect Technology Installing ASRock Smart Connect Utility Click Apply to enable Smart Connect Using Smart Connect English Intel Remote Wake Technology Configuring and Using MeshCentralCreating a Mesh Downloading and Installing Mesh Agent Click Install / Update Click on Power Actions Waking up a PC using mobile device Setup Guide Configuring and Using SplashtopUsing Remote Wakeup Using Remote Control Accessing Data Playing Video UI Overview Intel Extreme Tuning Utility IxtuSystem Information Manual TuningStress Test BenchmarkingConfiguring Start8 Installing Start8Start8 StyleControl ConfigureAbout DesktopUefi Menu Bar IntroductionEND Navigation KeysActive Page on Entry Main ScreenUefi Guide Load Optimized GPU OC Setting Load Optimized CPU OC SettingOC Tweaker Screen Advanced TurboLong Duration Power Limit CPU Configuration CPU RatioCPU Cache Ratio BCLK/PCIE FrequencyGT Voltage Mode Short Duration Power LimitDram Timing Configuration Dram Reference Clock Primary Plane Current LimitRAS# to CAS# Delay tRCD Dram Configuration Dram TweakerCAS# Latency tCL Row Precharge Time tRPWrite Recovery Time tWR Command Rate CRRAS to RAS Delay tRRD Write to Read Delay tWTRTRDRDDD TRDRDDRTWRRD TWRRDDRMRC Fast Boot Command Tri StateFivr Configuration Fivr Switch Frequency Signature Fivr Switch Frequency OffsetCPU Integrated VR Efficiency Mode CPU Integrated VR FaultsVoltage Configuration CPU Input Voltage CPU Voltage OffsetPCH 1.5V Voltage PCH 1.05V VoltageAdvanced Screen CPU Configuration No-Execute Memory Protection CPU Thermal ThrottlingIntel Virtualization Technology Hardware PrefetcherChipset Configuration Render Standby Restore on AC/Power LossOnboard HD Audio Front PanelSata Mode Selection Storage ConfigurationSata Aggressive Link Power Management Sata ControllersIntel Rapid Start Technology Intel Smart Connect Technology Serial Port Super IO ConfigurationSerial Port Address Infrared PortAcpi Configuration RTC Alarm Power On Ring-In Power OnUSB Keyboard/Remote Power On USB Mouse Power OnUSB Controller USB ConfigurationUSB 3.0 Controller Legacy USB SupportSecurity Device Support Trusted ComputingTools Internet Setting Network ConfigurationInstant Flash Internet FlashSave User Default Dehumidifier CPU Fan SettingLoad User Default Dehumidifier PeriodHardware Health Event Monitoring Screen Case Open Feature Fast Boot Boot ScreenBoot From Onboard LAN Setup Prompt TimeoutBoot Failure Guard Count Boot Failure GuardFull Screen Logo AddOn ROM DisplayLaunch Storage OpROM Policy Launch PXE OpROM PolicyLaunch Video OpROM Policy User Password Supervisor PasswordSecure Boot Security ScreenExit Screen Contact Information