HP XA manual Interrupt Request Description

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4 HP BIOS

BIOS Addresses

Interrupt Controllers

The Interrupt Requests (IRQ) are numbered sequentially, starting with the master controller, and followed by the slave.

	IRQ	Interrupt Request Description
	(Interrupt Vector)	Interrupt Request Description
	(Interrupt Vector)

	INTR

	IRQ1	NS317 Keyboard Controller

	IRQ0	PIIX4 System Timer

	IRQ3

	IRQ4	NS317 COM1, COM3

	IRQ5	AD1816, LPT2

	IRQ6	NS317 Flexible Disk Controller

	IRQ7	NS317 LPT1

	IRQ8	NS317 RTC

	IRQ9

	IRQ10

	IRQ11

	IRQ12	NS317 Mouse

	not connected

	IRQ14	PIIX4 IDE

	IRQ15

PCI Interrupt Request Lines

PCI devices generate interrupt requests using up to four PCI interrupt request lines (INTA#, INTB#, INTC#, and INTD#).

PCI interrupts can be shared; several devices can use the same interrupt. However, optional system performance is reached when minimizing the sharing of interrupts. Refer to pages 27 and 28 for the Desktop and Mini- tower Backplane PCI Mapping tables, and page 39 for a table of the PCI device interrupts.

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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 System Overview Package for the Desktop Models Package for the Desktop ModelsFront view Rear viewPackage 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 Max 11.0 Safety StandardEfficiency Min+3.3 V and +5 Current at -5 Current at +5V standby Voltage range 90-140Maximum input current Max Current at +5Current at +12 Current at -12 Desktop Parameter Total RatingEnvironmental Specifications Desktop and Minitower Documentation Access HP World Wide WebWhere to Find the Information Peripheral Devices GuideSystem board Routines PostSystem Overview Documentation System Board System Board System Board and Backplane Boards System Board and Backplane BoardsPCI Device Slot# DesktopBackplane front view Desktop Backplane PCI Mapping Table DeviceNot used System Board Architectural View Architectural ViewPCI Bus Interface Chip-SetPAC Chip 440LX PL Bus InterfaceMain Memory Controller AGP Bus InterfaceRead/Write Buffers System ClockingSecond Level Cache PIIX4, PCI/ISA Bridge Chip 82371ABUSB Controller ISA Bus InterfaceSMBus Controller IDE 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 Name Number Devices on the PCI BusIntegrated Drive Electronics IDE PCI DevicePlug and Play Other PCI Accessory DevicesUniversal Serial Bus USB Controller System Board Accelerated Graphics Port AGP Controller Accelerated Graphics Port AGP ControllerDevice PCI Bus # Pentium II Processor 66 MHz Device SM Bus Address Devices on the SM BusSerial Eeprom System Board Devices on the SM BusMain PLL LM75 ChipController Devices on the ISA BusSuper I/O Controller NS Serial / parallelHost Interface SpecificationsFeature Description Audio ControllerFlash Eeprom Open System Board SwitchesSwitch Switch Function Default ClosedBios Update Crisis Recovery Procedure Little Ben Updating the systemCheck the accessory board’s documentation if you are unsure Other ISA Accessory DevicesSystem Board Devices on the ISA Bus Interface Devices and Mass-Storage Drives Cirrus 5465 Graphics Controller Chip Page Video Memory Connectors640 60, 75, 85 Hz 800 Available Video ResolutionsResolution Refresh ratesPCI Interface Scsi / LAN Combo BoardScsi Interface 10BT/100TX PCI LAN ConnectorUltra wide 16-bit Scsi connector Connector Description LocationScsi Interface External 8-bit Scsi connectorScsi / PCI LAN Combo Board Features Interface Features PCI 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 Flexible Disk Drive Data Connector Pin Signal Connectors and SocketsIDE Connector Pin Signal Status Panel Connector Pin SignalExtStart Connector Bit Scsi Connector Pin Signal Bit Scsi ConnectorPackage Intrusion J8 CD Audio Connector Pin SignalPin Signal AUX Connector Pin SignalVesa Pass-Through Connector VGA DB Connector Pins Standard VGASocket Pin Layouts VGA ConnectorPage HP Bios HP/Phoenix Bios Summary HP/Phoenix Bios SummaryUsing the HP Setup Program Advanced Menu Security Symbios Logic Scsi Configuration Utility Default Settings You Can ChangeStarting the Scsi Configuration Utility Soft Power Down Power Saving and ErgonometryPower-On from Space-Bar System Memory Map Bios AddressesAddress Ports Function HP I/O Port Map I/O Addresses Used by the System1DMA controller Interrupt Request Description HP Bios Power-On Self-Test and Error Messages Order in Which the Tests are Performed For example, if the error 0101 52 is displayedPost Routine Description Code Post Routine Description Post Routine Description Configure Motherboard Configurable Devices Detect and install external RS 232 portsConfigure non-MCD IDE controllers Detect and install external parallel portsTerminate QuietBoot Enter SetupCheck for errors Post done prepare to boot operating systemFollowing are for boot block in Flash ROM Enter= View System Error Error Message SummaryPower-On Self-Test and Error Messages Error Message Summary F1= Continue, F2= Setup, Enter= View System ErrorCause / Symptom 0513h HDD # 3 self-test error 0510h HDD # 0 self-test error0511h HDD # 1 self-test error 0512h HDD # 2 self-test errorMessage Beep Pattern Beep CodesLights on the Hardware Control Panel Appendix Standard VGA Modes Video ModesType Refresh MHz Extended Video ModesColors 102 44.978.7 94.5157 108126 135104 162Maximum Refresh Rates Bios Modes SupportedResolution MHz DAC Refresh Mode106 6001024 107 Type1200 Appendix Video Modes 108