ASRock B85M Pro4 manual Expansion Slots PCI and PCI Express Slots, PCIe Slot Configurations

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B85M Pro4

2.4 Expansion Slots (PCI and PCI Express Slots)

There are 2 PCI slots and 2 PCI Express slots on the motherboard.

Before installing an expansion card, please make sure that the power supply is switched off or the power cord is unplugged. Please read the documentation of the expansion card and make necessary hardware settings for the card before you start the installation.

PCI slot:

The PCI1 and PCI2 slots are used to install expansion cards that have 32-bit PCI interface.

PCIe slots:

PCIE1 (PCIe 3.0 x16 slot) is used for PCI Express x16 lane width graphics cards. PCIE2 (PCIe 2.0 x16 slot) is used for PCI Express x4 lane width graphics cards.

PCIe Slot Configurations

		PCIE1	PCIE2
	Single Graphics Card	x16	N/A
	Two Graphics Cards in	x16	x4
	CrossFireXTM Mode	x16	x4
	CrossFireXTM Mode

For a better thermal environment, please connect a chassis fan to the motherboard’s chassis fan connector (CHA_FAN1 or CHA_FAN2) when using multiple graphics cards.

English

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Contents Page Copyright Notice DisclaimerContents Uefi Setup Utility Exit Screen Package Contents IntroductionSpecifications CPULAN Bios Certifica Unique Features ASRock OMG Online Management Guard ASRock Crashless BiosASRock XFast RAM ASRock Internet FlashASRock Restart to Uefi ASRock Fast BootASRock Interactive Uefi ASRock On/Off Play TechnologyASRock Home Cloud ASRock FAN-Tastic TuningASRock Easy Driver Installer Motherboard Layout DVI1No. Description I/O Panel Activity / Link LED Status Description Installation Installing the CPU English English Installing the CPU Fan and Heatsink Installing Memory Modules Dimm Dual Channel Memory ConfigurationEnglish PCIe Slot Configurations Expansion Slots PCI and PCI Express SlotsJumpers Setup CLRCMOS1Onboard Headers and Connectors Pwrbtn Power SwitchHeader can support two ports Chassis Speaker Header Pin SPEAKER1 See p.10, No This COM1 header supports a serial port module TPM Header This connector supports Pin TPMS1 Installing Two CrossFireXTM-Ready Graphics Cards CrossFireXTM and Quad CrossFireXTM Operation GuideEnglish Driver Installation and Setup Drivers Menu Installing DriversRunning The Support CD Utilities MenuUsing A-Tuning TuningInstalling A-Tuning Operation ModeTools XFast RAMOC Tweaker System InfoTech Service Intel Rapid Start Technology System RequirementsSetup Guide Configuring Rapid StartDouble-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 Creating a Mesh Configuring and Using MeshCentralIntel Remote Wake Technology Downloading and Installing Mesh Agent Click Install / Update Click on Power Actions Waking up a PC using mobile device Using Remote Wakeup Configuring and Using SplashtopSetup Guide Using Remote Control Accessing Data Playing Video Intel Extreme Tuning Utility Ixtu UI OverviewStress Test Manual TuningSystem Information BenchmarkingStart8 Installing Start8Configuring Start8 StyleConfigure ControlDesktop AboutIntroduction Uefi Menu BarNavigation Keys ENDUefi Guide Main ScreenActive Page on Entry Intel SpeedStep Technology CPU Configuration CPU RatioOC Tweaker Screen Intel Turbo Boost TechnologyGT Voltage Mode Long Duration Power LimitShort Duration Power Limit Dram Timing Configuration Load XMP SettingDram Reference Clock Dram Configuration Dram TweakerRAS# to CAS# Delay tRCD Dram FrequencyRAS to RAS Delay tRRD Command Rate CRWrite Recovery Time tWR Write to Read Delay tWTRTRDRDDR TCKETRDRD TRDRDDDFivr Configuration Fivr Switch Frequency Signature Command Tri StateMRC Fast Boot Fivr Switch Frequency OffsetCPU Integrated VR Efficiency Mode CPU Voltage ModeCPU Integrated VR Faults CPU Override VoltageDram Voltage Voltage Configuration CPU Input VoltageCPU Load-Line Calibration PCH 1.05V VoltageAdvanced Screen CPU Configuration No-Execute Memory Protection Package C State SupportCPU Thermal Throttling Intel Virtualization TechnologyChipset Configuration Onboard HD Audio Restore on AC/Power LossRender Standby Front PanelSata Aggressive Link Power Management Storage ConfigurationSata Mode Selection Sata ControllersIntel Rapid Start Technology Intel Smart Connect Technology Super IO Configuration Acpi Configuration USB Keyboard/Remote Power On Ring-In Power OnRTC Alarm Power On USB Mouse Power OnUSB 3.0 Controller USB ConfigurationUSB Controller Legacy USB SupportTrusted Computing Security Device SupportTools Uefi Download Server Network ConfigurationInternet Setting Dehumidifier FunctionLoad User Default Dehumidifier CPU Fan SettingSave User Default Dehumidifier DurationHardware Health Event Monitoring Screen Boot From Onboard LAN Boot ScreenFast Boot Setup Prompt TimeoutFull Screen Logo Boot Failure GuardBoot Failure Guard Count AddOn ROM DisplayLaunch Video OpROM Policy Launch PXE OpROM PolicyLaunch Storage OpROM Policy Secure Boot Supervisor PasswordUser Password Security ScreenExit Screen Contact Information