SUPER MICRO Computer X7DBi+ Cache Base 512K-640K, Cache Extended Memory, Discrete Mtrr Allocation

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X7DBi+ User's Manual

memory area of Block 0-512K. Select Write Back to allow the CPU to write data back directly from the buffer without writing data to the System Memory for fast CPU data processing and operation. The options are Uncached, Write Through, Write Protect, and Write Back.

Cache Base 512K-640K

If enabled, this feature will allow the data stored in the memory area: 512K-640K to be cached (written) into a buffer, a storage area in the Static DROM (SDROM) or written into L1, L2, L3 cache inside the CPU to speed up CPU operations. Select Uncached to disable this function. Select Write Through to allow data to be cached into the buffer and written into the system memory at the same time. Select Write Protect to prevent data from being written into the base memory area of Block 512-640K. Select Write Back to allow the CPU to write data back directly from the buffer without writing data to the System Memory for fast CPU data processing and operation. The options are Uncached, Write Through, Write Protect, and Write Back.

Cache Extended Memory

If enabled, this feature will allow the data stored in the extended memory area to be cached (written) into a buffer, a storage area in the Static DROM (SDROM) or written into L1, L2, L3 cache inside the CPU to speed up CPU operations. Select Uncached to disable this function. Select Write Through to allow data to be cached into the buffer and written into the system memory at the same time. Select Write Protect to prevent data from being written into the extended memory area above 1 MB. Select Write Back to allow the CPU to write data back directly from the buffer without writing data to the System Memory for fast CPU data processing and operation. The options are Uncached, Write Through, Write Protect, and Write Back.

Discrete MTRR Allocation

If enabled, MTRRs (-Memory Type Range Registers) are configured as distinct, separate units and cannot be overlapped. If enabled, the user can achieve better graphic effects when using a Linux graphic driver that requires the write-combining configuration with 4GB or more memory. The options are Enabled and Disabled.

PCI Configuration

Access the submenu to make changes to the following settings for PCI devices.

Onboard GLAN1/Onboard GLAN2 (Gigabit- LAN) OPROM Configure

Enabling this option provides the capability to boot from the GLAN ports as specified. The options are Disabled and Enabled.

IPMI 3rd_LAN OPROM Configure

Select Enabled to allow the system to boot from IPMI_Dedicated_LAN. The options are Disabled and Enabled.

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Contents Super Manual Revision Release Date June 25 About This Manual Manual OrganizationConventions Used in the Manual PrefaceTable of Contents Table of Contents Main Bios Setup Security Setup Boot Setup ExitOverview ChecklistIntroduction Contacting Supermicro HeadquartersX7DBi+ Image X7DBi+ Motherboard Layout Not drawn to scaleJumper Description Default Setting Quick Reference X7DBi+Memory ChipsetExpansion Slots PC Health MonitoringAcpi Features DimensionsOnboard I/O OtherBlock Diagram of the 5000P Chipset 5000PXeon Dual Core Processors Chipset OverviewXeon Quad Core Processors Special Features PC Health MonitoringAcpi Features Slow Blinking LED for Suspend-State IndicatorMain Switch Override Mechanism External Modem Ring-OnPower Supply Super I/OPage Page Precautions InstallationStatic-Sensitive Devices UnpackingProcessor and Heatsink Installation Installation of the LGA771 ProcessorPage To Un-install the Heatsink Installation of the HeatsinkCEK Heatsink Installation Mounting the Motherboard in the Chassis Installing DIMMs Dimm InstallationMemory Support Dimm Module Population ConfigurationInstalling and Removing DIMMs Control Panel Connectors/IO Ports Back Panel Connectors/IO PortsPower Button JF1 Header PinsFront Control Panel Power LED Power LED Pin Definitions JF1Front Control Panel Pin Definitions NMI Button NMI Button Pin Definitions JF1Pin# Definition 13 +5V HD Active NIC1/NIC2 LED IndicatorsPin# Definition Vcc 10/12 Ground Power Fail LED Overheat/Fan Fail LED OHOH/Fan Fail LED PWR Supply FailReset Button Power ButtonReset Button B. PWR Button Reset Button Pin Definitions JF1ATX Power Connector Connecting CablesProcessor Power Connector Universal Serial Bus USB Chassis IntrusionBackpanel USB Front Panel USBFan Headers KeylockFan Fan 7 CPU Fan Fan 8 CPU Fan Fan Header Pin Definitions Fan1-8COM1 is a connector located on ATX PS/2 Keyboard and PS/2 Mouse PortsSerial Ports Pin 10 is available on COM2 only. NC No ConnectionWake-On-Ring Wake-On-LANWake-On-Ring Pin Definitions WOR Wake-On-LAN Pin Definitions WOLPower LED/Speaker Speaker ConnectorGlan 1/2 Giga-bit Ethernet Ports PWR LED/SpeakerPower Fault PWR Supply Failure Alarm ResetPower Fault B. Alarm Reset Alarm ResetSMBus PS I2C Connector SMB J18 PWR SMB J17SMB Header Pin Definitions Pin# Definition Data Ground Clock No ConnectionVGA Connector Sgpio HeadersThere are two T-SGPIO Serial General LocationCompact Flash Card PWR Connector Compact Flash Card PWR ConnectorJumper Definition Compact Flash Power On Off Power Off Compact Flash PWRJumper Settings Glan Enable/DisableGlan Port1 Enable B. Glan Port2 Enable Explanation JumpersWatch Dog Enable/Disable Clear Cmos Watch Dog EnableWatch Dog Jumper Settings JWD Cmos Clear3rd PWR Supply PWR Fault Detect J3P VGA Enable/Disable3rd PWR Fail B. VGA Enabled 3rd PWR Supply PWR Fault Jumper SettingsCompact Flash Master/Slave Select I2C Bus to PCI-X/PCI-Exp. SlotsCompact Flash Master/ Slave Select J27Onboard Indicators Onboard Power LEDGlan LEDs Rear ViewOverheat LED/Fan Fail JOH1 Overheat LEDOverheat LED Pin Definitions OH/Fan Fail LEDConnector Parallel Printer PortParallel printer port is Located On the IO panel. See the table onSimlp Slot Floppy ConnectorFloppy Simlp IDE Connectors Compact Flash Card SlotTroubleshooting Procedures Before Power OnNo Power Losing the System’s Setup ConfigurationTechnical Support Procedures Memory ErrorsFrequently Asked Questions Troubleshooting System first boots up System configurationReturning Merchandise for Service System Bios How To Change the Configuration DataStarting the Setup Utility BiosMain Bios Setup Running SetupPress the Delete key to enter Setup Main Bios Setup Menu LBA Mode Control Transfer ModeUltra DMA Mode IDE Channel 0 Master/Slave and IDE Secondary Master/SlaveSata Controller Mode Serial ATA Sata RAID EnableICH RAID Code Base Available when Sata RAID is enabled Sata Ahci Available when Sata RAID is disabledAdvanced Setup Power Loss Control Memory Cache Cache System Bios AreaCache Video Bios Area Resume On Modem RingCache Base 512K-640K Cache Extended MemoryDiscrete Mtrr Allocation PCI ConfigurationDefault Primary Video Adapter Emulated IRQ SolutionsPCI Parity Error Forwarding Reset Configuration DataLatency Timer Enable MasterLarge Disk Access Mode Serr Signal Condition Memory Branch ModeAdvanced Chipset Control 4GB PCI Hole GranularityHigh Temperature Dram Operation Crystal Beach FeaturesClock Spectrum Feature AMB Thermal SensorUSB Function Legacy USB SupportFrequency Ratio Available when supported by the CPU Core-Multi-Processing Available when supported by the CPUMachine Checking Available when supported by the CPU Thermal Management 2 Available when supported by the CPUHardware Prefetch Available when supported by the CPU Direct Cache Access Available when supported by the CPUDCA Delay Clocks Available when supported by the CPU Intel Eist Support Available when supported by the CPUI/O Device Configuration KBC Clock InputSerial Port a Base I/O AddressDMA Channel Floppy Disk ControllerDMI Event Logging Event Log ValidityConsole Redirection COM Port AddressBaud Rate Console TypePeci Agent 1/2 Temperatures/System Temperature CPU Overheat AlarmHardware Monitoring System Temperature Fan1-Fan8 SpeedsFan Speed Control Modes Voltage MonitoringBios Post Errors Bios Post Watch DogSystem Event Logging Clear System Event LoggingOS Boot Watch Dog Timer for Loading OS MinutesSystem Event Log/System Event Log List Mode Time Out OptionRealtime Sensor Data IPMI LAN ConfigurationDefault Gateway Update LAN SettingsVlan Tagging IP Address SourceSecurity Settings Boot Settings Boot Priority Order/Excluded from Boot OrdersExit Page Bios Error Beep Codes Error MessageBeep Code DescriptionX7SBi+ User’s Manual Appendix B Installing the Windows OS Page Appendix C Installing Other Software Programs and Drivers Installing Other DriversDriver/Tool Installation Display Screen Configuring Supero Doctor Supero Doctor III Interface Display Screen-II Remote Control