ASRock Z77 OC Formula Command Rate CR, Memory Performance Level, Dram tWR, Dram tRFC, Dram tRRD

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Command Rate (CR)

Use this item to change Command Rate (CR) Auto/Manual setting. The default is [Auto].

Memory Performance Level

Use this item to change select Memory Performance Level. Lower for better memory performance. Higher for better memory compatibility. The default is [Auto].

DRAM tWR

Use this item to change Write Recovery Time (tWR) Auto/Manual setting. The default is [Auto].

DRAM tRFC

Use this item to change Refresh Cyle Time (tRFC) Auto/Manual setting. The default is [Auto].

DRAM tRRD

Use this item to change RAS to RAS Delay (tRRD) Auto/Manual setting. The default is [Auto].

DRAM tWTR

Use this item to change Write to Read Delay (tWTR) Auto/Manual setting. The default is [Auto].

DRAM tRTP

Use this item to change Read to Precharge (tRTP) Auto/Manual setting. The default is [Auto].

DRAM tFAW

Use this item to change Four Activate Window (tFAW) Auto/Manual set- ting. The default is [Auto].

DRAM tCWL

Use this item to change CAS# Write Latency (tCWL) Auto/Manual setting. The default is [Auto].

tREFI

Use this item to change tREFI setting. The default is [Auto]. tCKE

Use this item to change tCKE setting. The default is [Auto]. tWRDR(DD)

Use this item to change tWRDR(DD) setting. The default is [Auto]. tRWDR(DD)

Use this item to change tRWDR(DD) setting. The default is [Auto]. tRWSR

Use this item to change tRWSR setting. The default is [Auto]. tRRDD

Use this item to change tRRDD setting. The default is [Auto].

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Contents Z77 OC Formula Disclaimer Copyright NoticeContents Introduction Uefi Menu Bar Acpi ConfigurationMain Screen OC Tweaker Screen Advanced Screen Utilities MenuIntroduction Package ContentsSpecifications CrossFireXTM Supports Nvidia Quad Slitm and Slitm Clear Cmos Switch with LEDGraphics AudioRAID RAID 0 and RAID 1, NCQ, Ahci and Hot Plug Functions ConnectorUSB3.0 Ports, supports USB 1.0/2.0/3.0 up to 5Gb/sSupport CD Unique FeatureCertifications HardwareMonitor Page Page Page Motherboard Layout LAN Port LED Indications I/O PanelOff No Link Blinking LinkPage Screw Holes Pre-installation PrecautionsCPU Installation Page Installation of CPU Fan and Heatsink Dual Channel Memory Configuration Installation of Memory Modules DimmNotch break Break Installing a DimmExpansion Slots PCI Express Slots Pcie Slot ConfigurationsThere are 5 PCI Express slots on this motherboard Pcie slotsInstalling an expansion card Requirements Slitm and Quad Slitm Operation GuideASRock 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 Control Panel tab Select Nvidia Control Panel tabPage CrossFire Bridge Installing Three CrossFireXTM-Ready Graphics Cards For Windows 7 / VistaTM OS Install the required drivers to your systemFor Windows XP OS Page Select the display icon identified by the number Surround Display FeatureFor Windows XP / XP 64-bit OS For Windows 7 / 7 64-bit / VistaTM / VistaTM 64-bit OS Hdcp Function What is HDCP?Install Multi-Angle CIR Receiver to the front USB port ASRock Smart Remote Installation GuideMake sure the option CIR Controller is setting at Enabled Advanced Super IO Configuration CIR Controller EnabledCIR sensors in different angles Bios Selection Jumper Jumpers SetupDescription Clear Cmos JumperSerial ATA2 Connectors Onboard Headers and ConnectorsSerial ATA3 Connectors Serial ATA Sata Data CableUSB 3.0 Header Besides six default USB USB 2.0 Headers Besides four default USBOptional wireless transmitting Three USB 2.0 headers on thisSeveral system front panel Front Panel Audio HeaderSystem Panel Header Power LED to this header to Power LED Header Please connect the chassisIndicate system power status State power offATX Power Connector CPU Fan ConnectorsSupply to this connector ATX 12V Power ConnectorsIncluding VCCM, Vccsa Serial port moduleDMI, PCH2, PCH 8VPLLInstallation Guide of Rear USB 3.0 Bracket Installation Guide of Front USB 3.0 PanelAdjust OC frequency in Rapid Smart SwitchesClear the Cmos values + / Rapid OC Buttons + / Rapid OC Buttons allowPCIE5 PCIE2PCIE4 Status Code Description 14 Dr. DebugPage Page Page Post Status Checker PSC Serial ATA Sata / Serial ATA2 SATA2 Hard Disks InstallationSerial ATA3 SATA3 Hard Disks Installation What is Hot Swap Function? What is Hot Plug Function?Hot Plug and Hot Swap Functions for Sata / SATA2 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 Unplug Points of attention, before you process the Hot PlugUse RAID Installation Guide to set RAID configuration Driver Installation GuideSet up Uefi Install Windows XP / XP 64-bit OS on your system Installing Windows XP / XP 64-bit Without RAID FunctionsPage Uefi Menu Bar IntroductionMain Screen Navigation KeysNavigation Keys + / Tab Enter Pgup Pgdn Home F10 F12OC Tweaker Screen Short Duration Power Limit Long Duration Power LimitSpread Spectrum Intel SpeedStep TechnologyDram Timing Mode Dram Timing Configuration Load XMP SettingDram Configuration Dram tCL Dram FrequencyMemory Performance Level Command Rate CRDram tWR Dram tRFCForce Cold Reset MRC Fast BootCommand 3-state TRRDRPower Down Mode Dimm Exit ModeVoltage Configuration PWM Switching FrequencyAdvanced Screen CPU Configuration Intel Virtualization Technology No-Execute Memory ProtectionHardware Prefetcher Use this item to turn on/off the MLC streamer prefetcherNorth Bridge Configuration South Bridge Configuration Storage Configuration Bootable Marvell SATA3 Controller IntelR Rapid Start Technology IntelR Rapid Start TechnologyEntry After Active Page Threshold SupportIntelR Smart Connect Technology IntelR Smart Connect TechnologyUse this item to enable or disable the onboard serial port Super IO ConfigurationSerial Port Serial Port AddressAcpi Configuration USB 2.0 Controller USB ConfigurationUSB 3.0 Controller Legacy USB SupportTool Uefi Update Utility Instant FlashSound Effect System BrowserDehumidifier CPU Fan Setting Network Configuration Internet SettingInternet Flash Uefi Download ServerHardware Health Event Monitoring Screen Boot Screen Security Screen Exit Screen Contact Information Software SupportInstalling OS on a HDD Larger Than 2TB in Ahci Mode Bit ..\i386\Win7VistaIntel Bit ..\AMD64\Win7-64Vista64Intel Installing OS on a HDD Larger Than 2TB in RAID ModeWindows VistaTM 64-bit Page Windows 7 64-bit
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