Intel BLKDX79TO Serial ATA and IDE Auto Configuration, PCI and PCI Express* Auto Configuration

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Intel Desktop Board DX79TO Product Guide

BIOS

The BIOS provides the Power-On Self-Test (POST), the BIOS Setup program, and the PCI/PCI Express and IDE auto-configuration utilities. The BIOS is stored in the Serial Peripheral Interface (SPI) Flash device.

The BIOS can be updated by following the instructions on page 63 in Chapter 3.

Serial ATA and IDE Auto Configuration

If you install a Serial ATA or IDE device (such as a hard drive) in your computer, the auto-configuration utility in the BIOS automatically detects and configures the device for your computer. You do not need to run the BIOS Setup program after installing a Serial ATA or IDE device. You can override the auto-configuration options by specifying manual configuration in the BIOS Setup program.

PCI and PCI Express* Auto Configuration

If you install a PCI/PCI Express add-in card in your computer, the PCI/PCI Express auto-configuration utility in the BIOS automatically detects and configures the resources (IRQs, DMA channels, and I/O space) for that add-in card. You do not need to run the BIOS Setup program after you install a PCI/PCI Express add-in card.

Security Passwords

The BIOS includes security features that restrict whether the BIOS Setup program can be accessed and who can boot the computer. A supervisor password and a user password can be set for the BIOS Setup and for booting the computer, with the following restrictions:

The supervisor password gives unrestricted access to view and change all Setup options. If only the supervisor password is set, pressing <Enter> at the password prompt of Setup gives the user restricted access to Setup.

If both the supervisor and user passwords are set, you must enter either the supervisor password or the user password to access Setup. Setup options are then available for viewing and changing depending on whether the supervisor or user password was entered.

Setting a user password restricts who can boot the computer. The password prompt is displayed before the computer is booted. If only the supervisor password is set, the computer boots without asking for a password. If both passwords are set, you can enter either password to boot the computer.

For instructions on resetting the password, go to Clearing Passwords on page 55.

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Contents Intel Desktop Board DX79TO Product Guide Revision History DisclaimerPreface Intended AudienceUse Only for Intended Applications Document OrganizationTerm Description TerminologyIntel Desktop Board DX79TO Product Guide Contents Error Messages and Indicators Contents Regulatory ComplianceTables Desktop Board Features Feature SummaryPower Management PeripheralInterfaces LAN SupportDesktop Board Features Supported Operating SystemsDesktop Board Components Intel Desktop Board DX79TO ComponentsLabel Description Processor Online SupportSystem Memory Memory Configurations Memory Channel and Dimm ConfigurationIntel X79 Express Chipset USB SupportSerial ATA USBAudio Subsystem LAN SubsystemLED Color LED State Indicates Legacy I/OExpandability Security Passwords Serial ATA and IDE Auto ConfigurationPCI and PCI Express* Auto Configuration Hardware Monitoring and Fan Speed Control Back to Bios ButtonHardware Management Power Management Chassis IntrusionSoftware Support Hardware SupportFan Headers +5 V Standby Power Indicator Onboard System Control Switches Wake from USBPower Switch Reset SwitchSystem Initialization/ Status LEDs Location of the Initialization/Status LEDsSystem Initialization LEDs System Initialization LEDsItem/Callout Activity Color DescriptionTrusted Platform Module TPM SpeakerStatus LEDs Status LEDsBattery Real-Time ClockInstalling and Replacing Desktop Board Components Before You BeginObserve Safety and Regulatory Requirements Installation PrecautionsPrevent Power Supply Overload Installing the I/O Shield Installing and Replacing Desktop Board ComponentsInstalling the Desktop Board Intel Desktop Board DX79TO Mounting Screw Hole LocationsInstalling a Processor Unlatch the Socket LeversOpen the Load Plate Install the Processor Close the Load Plate Installing a Processor Fan Heat Sink Installing and Removing Memory Installing DIMMsInstalling a Dimm Removing DIMMs Installing and Removing PCI Express x16 Add-in CardsInstalling PCI Express x16 Graphics Cards Installing a PCI Express x16 Card Removing a PCI Express x16 Add-in CardInstalling Linked PCI Express x16 Graphics Cards Removing a PCI Express x16 CardInstalling Linked PCI Express Graphics Cards Connecting Sata Cables Connecting the Serial ATA CablesConnecting to the Internal Headers and Connectors Internal HeadersIeee 1394a Header Front Panel Audio HeaderChassis Intrusion Header Front Panel CIR Receiver Input Header Signal Names Back Panel CIR Header Emitter Output Header Signal NamesPin Signal Name Ground Consumer IR CIR HeadersUSB 2.0 Header Signal Names Front Panel Header Signal NamesUSB 2.0 Headers Front Panel HeaderConnecting to the Audio System Alternate Front Panel Power LED HeaderAlternate Front Panel Power LED Header Signal Names Pin Description In/OutConnecting Chassis Fan and Power Supply Cables Connecting Chassis Fan CablesConnecting Power Supply Cables Connecting Power Supply CablesSetting the Bios Configuration Jumper Location of the Bios Configuration Jumper BlockMode Description Clearing PasswordsJumper Settings for the Bios Setup Program Modes Replacing the Battery PrécautionVaro Προσοχή Внимание Intel Desktop Board DX79TO Product Guide Removing the Battery Intel Desktop Board DX79TO Product Guide Updating the Bios Updating the Bios with the Intel Express Bios Update UtilityUpdating the Bios Using the F7 Function Key Updating the Bios with the Intel Flash Memory Update UtilityRecovering the Bios Updating the BiosIntel Desktop Board DX79TO Product Guide Configuring for RAID Using Intel Rapid Storage Technology Configuring the BiosGo to Configuration Sata Drives Creating Your RAID SetSetting Up a RAID Ready System Error Messages and Indicators Bios Error CodesBios Beep Codes Front-panel Power LED Blink CodesError Message Explanation Bios Error MessagesBios Error Messages Error Messages and Indicators Port 80h Post CodesPEI Phase Before MRC Port 80h Post CodesPost Code Description Acpi S States MEC Memory DetectionPEIMs/Recovery Boot Device Selection BDSRuntime Phase/EFI Operating System Boot CPU Initialization PEI, DXE, SMMIntel Desktop Board DX79TO Product Guide Safety Standards Battery CautionSafety Standards Regulatory ComplianceEuropean Union Declaration of Conformity Statement Regulatory Compliance Product Ecology StatementsRecycling Considerations Deutsch EspañolFrançais MalayTürkçe PortugueseRussian China RoHS EMC Regulations EMC RegulationsFCC Declaration of Conformity Canadian Department of Communications Compliance Statement Japan Vcci StatementKorea Class B Statement Ensure Electromagnetic Compatibility EMC ComplianceProduct Certifications Board-Level CertificationsRegulatory Compliance Marks Description MarkEnergy STAR*, e-Standby, and ErP Compliance Chassis- and Component-Level CertificationsEurope United StatesIntel Desktop Board DX79TO Product Guide