ASRock 990FX Extreme4 manual North Bridge Configuration, Primary Graphics Adapter

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3.4.2 North Bridge Configuration

Primary Graphics Adapter

This item will switch the PCI Bus scanning order while searching for video card. It allows you to select the type of Primary VGA in case of multiple video controllers. The default value of this feature is [PCI Express]. Con- ﬁguration options: [PCI] and [PCI Express].

IOMMU

Use this to enable or disable IOMMU. The default value of this feature is [Disabled].

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Contents 990FX Extreme4 Disclaimer Copyright NoticeContents Uefi Menu Bar Install Operating SystemCPU Conﬁguration Super IO Conﬁguration Acpi Conﬁguration USB ConﬁgurationIntroduction Package ContentsSpecifications Connector Smart SwitchUSB Unique Feature Bios FeatureSupport CD HardwarePage Page Page Designed in Taipei Motherboard LayoutI/O Panel LAN Port LED IndicationsTable for Audio Output Connection Page Pre-installation Precautions InstallationInstallation of CPU Fan and Heatsink CPU InstallationDual Channel Memory Conﬁgurations Installation of Memory Modules DimmInstalling a Dimm Installing an expansion card Expansion Slots PCI and PCI Express SlotsPcie Slots Requirements Slitm and Quad Slitm Operation GuideDriver Installation and Setup For Windows XP / XP 64-bit OS For Slitm mode onlyDouble-click Nvidia Settings icon on your Windows taskbar Select Control Panel tab Select Nvidia Control Panel tabPage CrossFire Bridge Installing Three CrossFireXTM-Ready Graphics Cards CrossFireTM Bridge Install the required drivers to your system For Windows XP OSFor Windows 7 / VistaTM OS \ Surround Display Information Surround Display FeatureJumpers Setup Jumper SettingClear Cmos Jumper Onboard Headers and Connectors USB 3.0 Header Besides two default USB Serial ATA3 ConnectorsOptional wireless transmitting USB 2.0 HeadersCD-ROM, DVD-ROM, TV Internal Audio Connectors This connector allows youTuner card, or Mpeg card Front Panel Audio HeaderPower LED to this header to Power LED Header Please connect the chassisIndicate system power status Power offATX Power Connector CPU Fan ConnectorsATX 12V Power Connector Please connect an ATX Power supply to this connectorFront USB 3.0 Panel Installation Guide USB 3.0 Panel Rear USB 3.0 Bracket Installation GuideSmart Switches Status Code Description 11 Dr. DebugPage Page Page What is Hot Plug Function? Serial ATA3 SATA3 Hard Disks InstallationWhat is Hot Swap Function? Hot Plug and Hot Swap Functions for SATA3 HDDsPoints of attention, before you process the Hot Plug SATA3 HDD Hot Plug Feature and Operation GuideHow to Hot Plug a SATA3 HDD Installing Windows XP / XP 64-bit With RAID Functions Driver Installation GuideSet up Uefi Make a SATA3 Driver DisketteUse RAID Installation Guide to set RAID conﬁguration \ RAID Installation Guide Make a SATA3 Driver DisketteMake a SATA3 driver diskette by following .16.1 on Installing Windows XP / XP 64-bit Without RAID Functions Untied Overclocking Technology Uefi Menu Bar IntroductionMain Screen Navigation KeysTo jump to the Exit Screen or exit the current screen System Time HourMinuteSecondOC Tweaker Screen Multiplier/Voltage Change Dram Timing Control Power Down EnableHT Bus Speed HT Bus WidthCommand Rate CR RAS# to CAS# Delay tRCDWrite Recovery Time tWR RAS to RAS Delay tRRDNB Voltage Would you like to save current setting user defaults?HT Voltage CPU Load-line calibrationInstant Flash Advanced ScreenCool ‘n’ Quiet CPU ConfigurationSecure Virtual Machine Enhance Halt State C1EPrimary Graphics Adapter North Bridge ConfigurationSouth Bridge Configuration Storage Configuration Hard Disk S.M.A.R.T Onboard IDE & 1394 ControllerSuper IO Configuration Acpi Configuration Acpi Hpet table USB Mouse Power OnUSB 2.0 Controller USB ConfigurationUSB 3.0 Controller Legacy USB SupportChassis Fan 1 Setting CPU Fan 1 & 2 SettingChassis Fan 2 Setting Chassis Fan 3 SettingBoot Screen Security Screen Exit Screen Support CD Information Install Operating SystemRunning The Support CD Drivers MenuInstalling OS on a HDD Larger Than 2TB

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