ASRock P67 Extreme4 Gen3 RAS to RAS Delay tRRD, Write to Read Delay tWTR, Read to Precharge tRTP

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RAS to RAS Delay (tRRD)

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

Write to Read Delay (tWTR)

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

Read to Precharge (tRTP)

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

Four Activate Window (tFAW)

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

Memory Fast Boot

Use this item to adjust DDR fast boot mode. The default value is [Auto].

Memory Power Down Mode

Use this item to adjust DDR power down mode. Configuration options: [Auto], [Slow] and [Fast]. The default value is [Auto].

ODT WR (CHA)

Use this item to change ODT WR (CHA) Auto/Manual setting. The default is [Auto].

ODT NOM (CHA)

Use this item to change ODT NOM (CHA) Auto/Manual setting. The de- fault is [Auto].

ODT WR (CHB)

Use this item to change ODT WR (CHB) Auto/Manual setting. The default is [Auto].

ODT NOM (CHB)

Use this item to change ODT NOM (CHB) Auto/Manual setting. The de- fault is [Auto].

Voltage Control

CPU Core Voltage

Use this to select CPU Core Voltage. The default value is [Auto].

CPU Load-Line Calibration

CPU Load-Line Calibration helps prevent CPU voltage droop when the system is under heavy load.

DRAM Voltage

Use this to select DRAM Voltage. The default value is [Auto].

PCH Voltage

Use this to select PCH Voltage. The default value is [Auto].

CPU PLL Voltage

Use this to select CPU PLL Voltage. The default value is [Auto].

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Contents P67 Extreme4 Gen3 Copyright Notice DisclaimerContents Introduction Uefi Menu Bar Utilities MenuPackage Contents IntroductionSpecifications Smart Switch ConnectorUSB3.0 Support CD Bios FeatureUnique Feature HardwarePage Page Page Motherboard Layout 24.4cm 9.6LAN Port LED Indications I/O PanelTable for Audio Output Connection 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 BreakExpansion Slots PCI and PCI Express Slots Installing an expansion cardPcie slots Slitm and Quad Slitm Operation Guide RequirementsASRock SLIBridge2S Card For Windows XP / XP 64-bit OS For Slitm mode only Driver Installation and SetupDouble-click Nvidia Settings icon on your Windows taskbar Select Nvidia Control Panel tab Select Control Panel tabPage CrossFire Bridge Installing Three CrossFireXTM-Ready Graphics Cards CrossFireTM Bridge For Windows XP OS Install the required drivers to your systemFor Windows 7 / VistaTM OS Page \ Surround Display Information Surround Display FeatureJumpers Setup DescriptionOnboard Headers and Connectors USB 2.0 Headers USB 3.0 HeaderSeveral system front panel System Panel HeaderFunctions Chassis Speaker Header Speaker to this headerSupply to this connector ATX Power Connector Please connect an ATX powerATX 12V Power Connector Serial port Header Installation Guide of Front USB 3.0 PanelSerial port module Installation Guide of Rear USB 3.0 Bracket Smart Switches13 Dr. Debug Status Code DescriptionPage Page Page Serial ATA3 SATA3 Hard Disks Installation Hot Plug and Hot Swap Functions for Sata / Sataii HDDs What is Hot Plug Function?What is Hot Swap Function? 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 UnplugSet up Uefi Driver Installation GuideInstalling Windows XP / XP 64-bit With RAID Functions 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 BarMain Screen Navigation KeysTo jump to the Exit Screen or exit the current screen OC Tweaker Screen Command Rate CR Dram Timing Control Dram Configuration Load XMP SettingRAS# to CAS# Delay tRCD Write Recovery Time tWRMemory Fast Boot RAS to RAS Delay tRRDWrite to Read Delay tWTR Memory Power Down ModeUser Default Use this to select VTT Voltage. The default value is AutoUse this to select Vccsa Voltage. The default value is Auto VTT VoltageAdvanced Screen Instant FlashCPU Configuration No-Excute Memory Protection CPU Thermal ThrottlingIntel Virtualization Technology Local x2APICVT-d North Bridge ConfigurationLow Mmio Align Primary Graphics AdapterSouth Bridge Configuration Onboard Debug Port LED Marvell SATA3 Bootable Storage ConfigurationMarvell SATA3 Operation Mode Sata ModeSuper IO Configuration Acpi Configuration USB 3.0 Controller USB ConfigurationUSB 2.0 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