SUPER MICRO Computer AS1011M-T2 user manual Appendix B Bios Post Checkpoint Codes

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Appendix B: BIOS POST Checkpoint Codes

Appendix B

BIOS POST Checkpoint Codes

When AMIBIOS performs the Power On Self Test, it writes checkpoint codes to I/O port 0080h. If the computer cannot complete the boot process, diagnostic equipment can be attached to the computer to read I/O port 0080h.

B-1 Uncompressed Initialization Codes

The uncompressed initialization checkpoint codes are listed in order of execution:

Checkpoint

D0h

D1h

D3h

D4h

D5h

Code Description

The NMI is disabled. Power on delay is starting. Next, the initialization code check- sum will be verifi ed.

Initializing the DMA controller, performing the keyboard controller BAT test, starting memory refresh and entering 4 GB fl at mode next.

Starting memory sizing next.

Returning to real mode. Executing any OEM patches and setting the Stack next.

Passing control to the uncompressed code in shadow RAM at E000:0000h. The initialization code is copied to segment 0 and control will be transferred to segment 0.

B-1

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Contents AS1011M-T2 Manual Revision Release Date November 30 Preface About This ManualManual Organization Advanced Motherboard Setup System SafetyAdvanced Chassis Setup BiosPreface Table of Contents HDD LED NIC1/NIC2 LED Advanced Motherboard SetupSgpio Advanced Chassis SetupAppendices BiosPage Overview Chapter IntroductionMotherboard Features Onboard Controllers/Ports Other FeaturesSystem Power Server Chassis FeaturesControl Panel Rear I/O PanelHeadquarters Contacting SupermicroEurope Asia-PacificPage Chapter Server Installation Preparing for SetupUnpacking the System Choosing a Setup Location Rack PrecautionsServer Precautions Rack Mounting Considerations Identifying the Sections of the Rack Rails Installing the System into a RackInstalling the Rack Rails Installing the Chassis RailsInstalling the Server into a Rack Installing the Server into the RackInstalling the Server into a Telco Rack Installing the Server into a Telco RackChecking the Motherboard Setup Accessing the Inside of the System Checking the Drive Bay Setup Control Panel Buttons Chapter System InterfaceControl Panel LEDs Serial ATA Drive Carrier LEDs Page Electrical Safety Precautions Chapter System SafetyGeneral Safety Precautions ESD Precautions Installing the Onboard Battery Operating PrecautionsPrecautions Chapter Advanced Motherboard SetupHandling the Motherboard UnpackingProcessor and Heatsink Installation Installing the ProcessorMounting the Motherboard into a Chassis Installing the Heatsink Removing the Air Shroud Installing the Heatsink Retention ModulesConnecting Cables Connecting Data CablesConnecting Power Cables Front Control Panel Header Pins JF1 Connecting the Control PanelI/O Ports Installing MemorySupport Side and Top Views of DDR InstallationPCI card installation Adding PCI CardsPCI slots Super H8SMi-2 Motherboard DetailsConnectors Description Jumpers Description Default SettingH8SMi-2 Quick Reference LEDs DescriptionATX Power Connector Connector DefinitionsAuxiliary Power Connector Power LEDPower Fail LED Reset ButtonOverheat/Fan Fail LED Power Button Universal Serial Bus Ports JUSB1USB Headers Serial Ports ATX PS/2 Keyboard and PS/2 Mouse PortsFan Headers LAN1/2 Ethernet PortsOverheat LED Power LED/SpeakerChassis Intrusion Wake-On-LANWake-On-Ring Redundant Power Supply Fail HeaderSMBus Header UID LED HeaderCompact Flash Power Power Fail Alarm Reset HeaderJumper Settings Explanation JumpersCmos Clear VGA Enable/Disable I2C to PCI Enable/DisableWatch Dog USB Power Onboard Speaker Enable/ DisablePS2 Power Compact Flash Master/SlaveOnboard Indicators Onboard Power LEDLAN1/LAN2 LEDs Floppy, IDE, Parallel Port and Sata Drive Connections Floppy ConnectorSata Ports IDE ConnectorParallel Printer Port Pin Definitions Parallel PortEnabling Sata RAID in the Bios Installing the OS/SATA DriverEnabling Sata RAID Serial ATA SataInstalling the OS and Drivers Using the nVidia RAID UtilityDriver/Tool Installation Display Screen Installing DriversPrecautions Chapter Advanced Chassis SetupStatic-Sensitive Devices Tools RequiredChassis Front View Control PanelSystem Fans Installing a new fanSystem Fan Failure Replacing System FansAccessing the Drive Bays Drive Bay Installation/RemovalSerial ATA Drive Installation Mounting a Serial ATA drive in a drive carrierInstalling/removing hot-swap Serial ATA drives Serial ATA Backplane CD-ROM and Floppy Drive InstallationPower Supply Failure Power SupplyReplacing the Power Supply Removing the power supplyPage Starting the Setup Utility ChapterIntroduction Advanced Settings Menu Boot FeaturesMain Menu Acpi Version Features Wait for ‘F1’ If ErrorAcpi Settings Acpi Apic Support Headless ModeCPU Configuration Floppy/IDE/SATA Configuration Primary IDE Master/Slave LBA/Large ModeType Block Multi-Sector TransferA.R.T DMA ModeBit Data Transfer Serial ATA0/1/2 Primary/Secondary ChannelHard Disk Write Protect IDE Detect Time Out SecAtapi 80Pin Cable Detection PCI/PnP Configuration Super IO Configuration NorthBridge Configuration Advanced Chipset ConfigurationSouthBridge/MCP55 Configuration Bios Ehci Hand-Off USB 2.0 Controller ModePcie Spread Spectrum Sata Spread SpectrumEvent Log Configuration Remote Access ConfigurationSystem Health Monitor Clear BMC System Event Log View BMC System Event LogSet LAN Configuration IP AddressBoot Device Priority Boot MenuHard Disk Drives Removable DrivesExit Menu Security MenuLoad Fail-Safe Defaults Load Optimal DefaultsPage Appendix a Bios Error Beep Codes Amibios Error Beep CodesBeep Code Error Message Description Page Uncompressed Initialization Codes Appendix B Bios Post Checkpoint CodesBootblock Recovery Codes Uncompressed Initialization Codes Checkpoint Appendix B Bios Post Checkpoint Codes Checkpoint A9h Aah Abh B0h B1h 00h Page Appendix C System Specifications Power Supply WeightMotherboard ChassisRegulatory Compliance