HP XA Order in Which the Tests are Performed, For example, if the error 0101 52 is displayed

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5 Power-On Self-Test and Error Messages

Order in Which the Tests are Performed

An example of an Error Code Message

Order in Which the Tests are Performed

Each time the system is powered on, or a reset is performed, the POST is executed. The POST process verifies the basic functionality of the system components and initializes certain system parameters.

The POST starts by displaying a graphic screen of the HP PC Workstation’s logo when the PC is restarted. If you wish to view the POST details, press to get the HP Summary Screen.

If the POST detects an error, the error message is displayed inside a view system errors screen, in which the error message utility (EMU) not only displays the error diagnosis, but the suggestions for corrective action (see page 93for a brief summary). Error codes are no longer displayed.

Devices, such as memory and newly installed hard disks, are configured automatically. The user is not requested to confirm the change. Newly removed hard disks are detected, and the user is prompted to confirm the new configuration by pressing . Note, though, that the POST does not detect when a hard disk drive has been otherwise changed.

During the POST, the BIOS and other ROM data is copied into high-speed shadow RAM. The shadow RAM is addressed at the same physical location as the original ROM in a manner which is completely transparent to applications. It therefore appears to behave as very fast ROM. This technique provides faster access to the system BIOS firmware.

This example explains the different coding messages that appear in the lower left corner of the screen when the POST detects an error during startup.

For example, if the error 0101 - 52 is displayed.

0101 - Post Error Code failure. This error code is accompanied by short message. For this example, the message “keyboard error” is displayed. A table listing the error codes, causes and symptoms is on page 94.

52 - Post Checkpoint Code. This checkpoint code indicates that a test has failed at this stage of the POST.

A table listing the error codes, causes and symptoms is on page 87.

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Contents Technical Reference Manual Hardware and Bios Page Preface Bibliography How to use this online guide Page Contents Interface Devices and Mass-Storage Drives HP Bios Power-On Self-Test and Error Messages System Overview Rear view Package for the Desktop ModelsFront view System Overview Package for the Desktop ModelsPackage for the Minitower Models HP Kayak XA PC Workstation Overview System Overview Hardware Control Panel Hardware Control PanelMinitower Hardware Control Panel Electrical Specifications Specifications and Characteristic DataPhysical Characteristics Min Safety StandardEfficiency Max 11.0Max Current at +5 Voltage range 90-140Maximum input current +3.3 V and +5 Current at -5 Current at +5V standbyDesktop Parameter Total Rating Current at +12 Current at -12Environmental Specifications Desktop and Minitower Access HP World Wide Web DocumentationWhere to Find the Information Routines Post GuideSystem board Peripheral DevicesSystem Overview Documentation System Board System Board and Backplane Boards System Board System Board and Backplane BoardsDesktop Backplane PCI Mapping Table Device DesktopBackplane front view PCI Device Slot#Not used Architectural View System Board Architectural ViewPL Bus Interface Chip-SetPAC Chip 440LX PCI Bus InterfaceSystem Clocking AGP Bus InterfaceRead/Write Buffers Main Memory ControllerPIIX4, PCI/ISA Bridge Chip 82371AB Second Level CacheIDE Controller ISA Bus InterfaceSMBus Controller USB ControllerCache Memory Counter / TimerSerial Eeprom System Board Devices on the Processor-Local Bus Devices on the Processor-Local BusIntel Pentium II Microprocessor Plastic clips Bracket pillars Heat sink Local Bus SwitchBus Frequencies System Board Main Memory Bus Error Correcting Code OperationMain Memory Bus PCI Device Devices on the PCI BusIntegrated Drive Electronics IDE Name NumberPlug and Play Other PCI Accessory DevicesUniversal Serial Bus USB Controller Accelerated Graphics Port AGP Controller System Board Accelerated Graphics Port AGP ControllerDevice PCI Bus # Pentium II Processor 66 MHz System Board Devices on the SM Bus Devices on the SM BusSerial Eeprom Device SM Bus AddressLM75 Chip Main PLLSerial / parallel Devices on the ISA BusSuper I/O Controller NS ControllerAudio Controller SpecificationsFeature Description Host InterfaceFlash Eeprom Closed System Board SwitchesSwitch Switch Function Default OpenBios Update Crisis Recovery Procedure Updating the system Little BenOther ISA Accessory Devices Check the accessory board’s documentation if you are unsureSystem Board Devices on the ISA Bus Interface Devices and Mass-Storage Drives Cirrus 5465 Graphics Controller Chip Page Connectors Video MemoryRefresh rates Available Video ResolutionsResolution 640 60, 75, 85 Hz 800Scsi / LAN Combo Board PCI InterfaceConnector Description Location 10BT/100TX PCI LAN ConnectorUltra wide 16-bit Scsi connector Scsi InterfaceInterface Features PCI Interface External 8-bit Scsi connectorScsi / PCI LAN Combo Board Features Scsi Interface10BT/100TX LAN Controller Supporting RPO 10BT/100TX LAN FeaturesRemote Power On Installing Two LAN Remote Power On Cards Flexible Disk Drives Mass-Storage DrivesHard Disk Drives Buffer Memory Size Kbytes Features Panasonic CD-ROM CD-585-BCD-ROM Drives Status Panel Connector Pin Signal Connectors and SocketsIDE Connector Pin Signal Flexible Disk Drive Data Connector Pin SignalExtStart Connector Bit Scsi Connector Bit Scsi Connector Pin SignalAUX Connector Pin Signal CD Audio Connector Pin SignalPin Signal Package Intrusion J8VGA DB Connector Pins Standard VGA Vesa Pass-Through ConnectorVGA Connector Socket Pin LayoutsPage HP Bios HP/Phoenix Bios Summary HP/Phoenix Bios SummaryUsing the HP Setup Program Advanced Menu Security Default Settings You Can Change Symbios Logic Scsi Configuration UtilityStarting the Scsi Configuration Utility Soft Power Down Power Saving and ErgonometryPower-On from Space-Bar Bios Addresses System Memory MapHP I/O Port Map I/O Addresses Used by the System1 Address Ports FunctionDMA controller Interrupt Request Description HP Bios Power-On Self-Test and Error Messages For example, if the error 0101 52 is displayed Order in Which the Tests are PerformedPost Routine Description Code Post Routine Description Post Routine Description Detect and install external parallel ports Detect and install external RS 232 portsConfigure non-MCD IDE controllers Configure Motherboard Configurable DevicesPost done prepare to boot operating system Enter SetupCheck for errors Terminate QuietBootFollowing are for boot block in Flash ROM F1= Continue, F2= Setup, Enter= View System Error Error Message SummaryPower-On Self-Test and Error Messages Error Message Summary Enter= View System ErrorCause / Symptom 0512h HDD # 2 self-test error 0510h HDD # 0 self-test error0511h HDD # 1 self-test error 0513h HDD # 3 self-test errorMessage Beep Codes Beep PatternLights on the Hardware Control Panel Appendix Video Modes Standard VGA ModesType Refresh MHz Extended Video ModesColors 94.5 44.978.7 102135 108126 157162 104Refresh Mode Bios Modes SupportedResolution MHz DAC Maximum Refresh Rates106 6001024 107 Type1200 Appendix Video Modes 108