SUPER MICRO Computer X7DBU Appendix a Post Error Beep Codes, Recoverable Post Error Beep Codes

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Appendix A: POST Error Beep Codes

Appendix A

POST Error Beep Codes

This section lists POST (Power On Self Test) error beep codes for the Phoenix BIOS. POST error beep codes are divided into two categories: recoverable and terminal. This section lists Beep Codes for recoverable POST errors.

Recoverable POST Error Beep Codes

When a recoverable type of error occurs during POST, BIOS will display a POST code that describes the problem. BIOS may also issue one of the following beep codes:

1 long and two short beeps - video conﬁguration error

1 repetitive long beep - no memory detected

1 continuous beep with Front Panel Overheat LED on - system overheat

A-1

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Contents Super Reproductive harm Conventions Used in the Manual About This ManualManual Organization Table of Contents Troubleshooting Appendices BiosOverview ChecklistAsia-Paciﬁc Contacting SupermicroHeadquarters EuropeX7DBU/X7DGU Image Not drawn to scale X7DBU/X7DGU Motherboard LayoutJumper Description Default SettingLE Indicators Description Quick Reference X7DBU/X7DGUExpansion Slots Motherboard FeaturesMemory ChipsetOther Acpi FeaturesDimensions Onboard I/OESB2 System Block Diagram for the X7DBUXeon Quad-core/Dual-core Processor Xeon Quad-core/Dual-core Processor FeaturesChipset Overview PC Health Monitoring Special FeaturesRecovery from AC Power Loss Environmental Temperature ControlSystem Resource Alert Acpi FeaturesSlow Blinking LED for Suspend-State Indicator Main Switch Override MechanismWake-On-LAN WOL Power SupplyExternal Modem Ring-On Super I/O Page Unpacking PrecautionsStatic-Sensitive Devices Installation of the LGA771 Processor Processor and Heatsink InstallationPage CEK Heatsink Installation Installation of the HeatsinkTo Un-install the Heatsink Mounting the Motherboard in the Chassis Memory performance Installing DIMMsDimm Installation Memory SupportPossible System Memory Allocation & Availability Installing and Removing DIMMsBack Panel Connectors Control Panel Connectors/IO PortsBack Panel Connectors/IO Ports Front Control Panel JF1 Header PinsFP Reset Butto NMI Button Pin Deﬁnitions JF1 Power LEDPower LED Pin Deﬁnitions JF1 Front Control Panel Pin Deﬁnitions NMI ButtonNIC1/NIC2 LED Indicators HDD LED/FP UID SwitchOH/Fan Fail/PWR Fail/FP UID Indica Tor Status Power Fail LEDOverheat OH/Fan Fail/PWR Fail/FP UID LED OH/Fan Fail/PWR Fail/FP UID LED Pin Deﬁnitions JF1Power Button Pin Deﬁnitions JF1 Reset ButtonPower Button Reset Button Pin Deﬁnitions JF1ATX Power 20-pin Connector Pin Deﬁnitions Connecting CablesATX Power Connector Processor Power ConnectorChassis Intrusion Universal Serial Bus USBKeylock Pin Deﬁnitions Fan HeadersKeylock Pin Fan Header Pin DeﬁnitionsSerial Port Pin Deﬁnitions ATX PS/2 Keyboard and PS/2 Mouse PortsSerial Ports PS/2 Keyboard Mouse Port Pin DeﬁnitionsWake-On-LAN Pin Deﬁnitions Wake-On-RingWake-On-LAN Glan 1/2 Giga-bit Ethernet Ports Power LED/SpeakerSpeaker Connector Pin Deﬁnitions SMB Header Pin Deﬁnitions Overheat LED/Fan Fail JOH1Overheat LED Pin Deﬁnitions OH/Fan Fail LED Pin DeﬁnitionsVGA Connector Power SMB I2 C ConnectorSgpio Headers Unit Identiﬁcation SwitchesExplanation Jumpers Jumper SettingsGlan Enable/Disable Glan Enable Jumper SettingsCmos Clear Watch Dog Enable/DisableWatch Dog Jumper Settings JWD VGA Enable/Disable Jumper Settings JPG1 VGA Enable/DisableI2C Bus to PCI Slots 1/2 I2C Bus to PCI Slots Jumper SettingsGlan LEDs Onboard IndicatorsGlan Activity Indicator Jumper Settings Onboard PWR LED Indicator LE1 Onboard Power LED LE1Step Floppy ConnectorSimso Ipmi Slot Bale IDE ConnectorSXB1/SXB2 Slots Losing the System’s Setup Conﬁguration Troubleshooting ProceduresBefore Power On No PowerMemory Errors Technical Support ProceduresQuestion How do I update my BIOS? Frequently Asked QuestionsQuestion Whats on the CD that came with my motherboard? Returning Merchandise for ServiceIntroduction System BiosHow To Change the Conﬁguration Data Starting the Setup UtilityPress the Delete key to enter Setup Running SetupMain Bios Setup Main Setup Features Main Bios Setup MenuSata Controller Mode LBA Mode ControlTransfer Mode Ultra DMA ModeExtended Memory ICH RAID Code Base Available when Sata RAID is EnabledSata Ahci Available when Sata RAID is Disabled System MemoryAdvanced Setup Resume On Modem Ring Power Loss ControlMemory Cache Cache System Bios Area Cache Video Bios AreaPCI Conﬁguration Cache Base 512K-640KCache Extended Memory Discrete Mtrr AllocationPCI Fast Delayed Transaction Default Primary Video AdapterEmulated IRQ Solutions PCI Parity Error ForwardingSerr Signal Condition Enable MasterLatency Timer Large Disk Access ModeBranch 0/1 Rank Interleaving & Sparing Memory Branch ModeHigh Temperature Dram Operation Crystal Beach FeaturesMachine Checking Available when supported by the CPU Clock Spectrum FeatureFrequency Ratio Available when supported by the CPU Core-Multi-Processing Available when supported by the CPUDirect Cache Access Available when supported by the CPU C1 Enhanced Mode Available when supported by the CPUExecute Disable Bit Available when supported by the CPU Hardware Prefetcher Available when supported by the CPUSerial Port a Intel Eist Support Available when supported by the CPUI/O Device Conﬁguration KBC Clock InputEvent Log Capacity Floppy Disk ControllerDMI Event Logging Event Log ValidityConsole Type Console RedirectionCOM Port Address Baud RateHardware Monitor Overheat AlarmPeci Agent 1/2 Temperatures/System Temperature Voltage Monitoring System TemperatureFan1-Fan8 Speeds Fan Speed Control ModesClear System Event Logging Bios Post ErrorsBios Post Watch Dog System Event LoggingTime Out Option OS Boot Watch DogTimer for Loading OS Minutes System Event Log/System Event Log List ModeIPMI LAN Conﬁguration Realtime Sensor DataIP Address Source Default GatewayUpdate LAN Settings Vlan TaggingSecurity Boot Priority Order/Excluded from Boot Orders BootExit Page Recoverable Post Error Beep Codes Appendix a Post Error Beep CodesPage Appendix B Installing the Windows OS Page Driver/Tool Installation Display Screen Installing other Software Programs and DriversConﬁguring Supero Doctor Supero Doctor III Interface Display Screen-II Remote Control