SUPER MICRO Computer Understanding Supermicro System Initializing Codes and BIOS POST Checkpoints

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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

Code Description

 

 

D0h

The NMI is disabled. Power on delay is starting. Next, the initialization code checksum will be

 

verified.

 

 

D1h

Initializing the DMA controller, performing the keyboard controller BAT test, starting memory

 

refresh and entering 4 GB flat mode next.

 

 

D3h

Starting memory sizing next.

 

 

D4h

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

 

 

D5h

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.

 

 

D6h

Control is in segment 0. Next, checking if <Ctrl> <Home> was pressed and verifying the system

 

BIOS checksum. If either <Ctrl> <Home> was pressed or the system BIOS checksum is bad,

 

next will go to checkpoint code E0h. Otherwise, going to checkpoint code D7h.

 

 

B-1

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Contents Super Page H8DI3+-F About This ManualManual Organization Table of Contents Sgpio Bios Viii Overview ChecklistHeadquarters Contacting SupermicroEurope Asia-PacificH8DI3+/I+-F Serverboard Image SLOT1 SLOT2 H8DI3+/I+-F Serverboard Quick Reference Jumper Description Default SettingCOM1/COM2 Connector DescriptionMemory Serverboard FeaturesChipset Expansion SlotsDimensions Acpi FeaturesOnboard I/O OtherSR5690 PC Health Monitoring Chipset OverviewAMD SR5690/SP5100 Processor HyperTransport TechnologyPower Configuration Settings Wake-On-LAN WOL Power SupplyWake-On-Ring Header WOR Super I/O H8DI3+/I+-F Serverboard User’s Manual Installation Triangles Processor and Heatsink InstallationInstalling the Heatsinks Mounting the Serverboard onto the Tray in the Chassis Mounting the Serverboard into a ChassisSupport To InstallMaximum Memory To RemovePCI Expansion Cards Installing a PCI Expansion CardFront Control Panel I/O Port and Control Panel ConnectionsRear I/O Ports Power Connectors Connector DefinitionsPwon Connector Reset ConnectorNMI Button Power On LEDLAN1/2 Ethernet Ports USB Headers Universal Serial Bus PortsFan Headers Serial PortsSMBus Header Power I2CWake-On-LAN Overheat LEDChassis Intrusion Power LED/SpeakerATX PS/2 Keyboard and PS/2 Mouse Ports ButtonCompact Flash Card PWR Connector Jumper SettingsCompact Flash Card PWR Connector Explanation of JumpersVGA Enable/Disable Watch Dog Enable/DisableI2C to PCI-Express Slot PCI-X Slot Frequency SelectionSAS Enable/Disable LAN1/2 Enable/DisableSAS RAID Mode Select Compact Flash Master/Slave SelectPower LED Onboard IndicatorsLAN1/LAN2 LEDs Dedicated Ipmi LAN LEDsIDE Drive Connector Pin Definitions IDE#1 IDE ConnectorsFloppy, SAS and Sata Drive Connections Sata Ports Floppy Drive ConnectorSAS Ports Enabling Sata RAID Installing the OS/SATA DriverSerial ATA Sata Enabling Sata RAID in the Bios Installing the RAID Driver During OS Installation Using the Adaptec RAID UtilityDriver/Tool Installation Display Screen Installing DriversSupero Doctor Supero Doctor III Interface Display Screen Remote Control Before Power On Troubleshooting ProceduresNo Power Losing the System’s Setup Configuration Memory ErrorsNo Video Frequently Asked Questions Technical Support ProceduresQuestion How do I update my BIOS? Question What type of memory does my serverboard support?Question Whats on the CD that came with my serverboard? Returning Merchandise for ServiceIntroduction Starting the Setup UtilityBoot Feature Advanced Settings MenuMain Menu Processor & Clock Options Memory Configuration Advanced Chipset Control NorthBridge ConfigurationECC Configuration Bit ECC Mode Dram ECC EnableDram Scrub Redirect Dram BG ScrubDram Timing Configuration SouthBridge ConfigurationPCI Express Configuration RD890 ConfigurationGPP Core Settings NB-SB Port Features NB-SB Link ApsmPowerdown Unused Lanes Hot Plug SupportHyper Transport Configuration Primary/Secondary/Third/Fourth IDE Master/Slave Channel IDE/Floppy ConfigurationDMA Mode PIO ModeBlock Multi-Sector Transfer A.R.TPCI/PnP Configuration Super IO Device Configuration Remote Access Configuration System Fan Monitor Hardware Health ConfigurationAcpi Configuration Set LAN Configuration Ipmi Configuration View BMC System Event LogIP Address Source IP Address Event Log ConfigurationSubnet Mask Gateway AddressSecurity Menu Boot MenuExit Menu Beep Code Error Message Description Amibios Error Beep CodesH8DI3+/I+-F Serverboard User’s Manual Checkpoint Code Description Uncompressed Initialization CodesBootblock Recovery Codes Uncompressed Initialization Codes To test memory next Appendix B Bios Post Checkpoint Codes H8DI3+/I+-F Serverboard User’s Manual

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