Intel AI5VG Interrupt Request Lines IRQ, Accelerated Graphics Port AGP Slot, Level Function

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Chapter 3 Hardware Description

3.10 Interrupt Request Lines (IRQ)

There are a total of 15 IRQ lines available on the motherboard. Peripheral devices use interrupt request lines to notify the CPU for the service required. The following table shows the IRQ used by the devices on the motherboard.

Level		Function
IRQ0	System Timer Output
IRQ1		Keyboard
IRQ2	Interrupt Cascade
IRQ3	Serial Port #2
IRQ4	Serial Port #1
IRQ5	Parallel Port #2
IRQ6		Floppy Disk Controller
IRQ7	Parallel Port #1
IRQ8	Real Time Clock
IRQ9	Software Redirected to Int 0Ah
IRQ10		Reserved
IRQ11		Reserved
IRQ12		Reserved
IRQ13	80287
IRQ14	Primary IDE
IRQ15	Secondary IDE

3.11 Accelerated Graphics Port (AGP) Slot

The AI5VG motherboard comes with an AGP slot for an AGP VGA card that supports 133MHz 2X mode for AD and SBA signaling to provide high-performance 3D graphic display.

AI5VG Pentium VP3 Baby AT Motherboard User’s Manual

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Contents AI5VG Page Contents Bios Configuration Introduction ChecklistMemory Type Main ProcessorL2 Cache Main MemoryAGP Support Accelerated Graphics Port CPU Temperature SensorOnboard Bus Mastering Eide Windows 95 Shut-DownHardware Description Layout of the AI5VG Motherboard L2 Cache Memory Processor and CPU Voltage8MB Bank0 Bank1 Total MemoryISA Plug and Play PnP Extension BiosBank0 DIMM2 Bank1 DIMM1 Total Memory DMI Desktop Management InterfaceOnboard Multi-I/O Onboard CPU Temperature SensorPower Management Onboard PCI EideI/O Port Address Map DMA ChannelsAddress Device Description Interrupt Request Lines IRQ Accelerated Graphics Port AGP SlotLevel Function Hardware Settings Jumper Locations of the AI5VG Bus Clock Mutiplier SW11-8 CPU Frequency Selector For Intel Pentium CPUFor Cyrix 6x86, 6x86L CPU For Dual Voltage CPU Intel P55C, Cyrix 6x86L/MX, AMD K6 SW21-4 CPU Voltage SelectorK6-233 35∝ JP5 Clear Cmos Selection Installation Connector Location on the AI5VG J3 Pin # Description Wire Color I/O ConnectorsJ1 AT Keyboard Connector Pin # Signal Name J2 ATX Power Supply ConnectorJ1, J4 AT Keyboard and PS/2 Mouse Connectors Signal Name Pin #RM/LC J8 Floppy Drive ConnectorPin # Signal Name J7, J6 Serial PortsJ9, J11 Eide Connectors J9 Primary IDE Connector Signal Name Pin #J11 Secondary IDE Connector Signal Name Pin # USB USB+ J10 Parallel Port ConnectorJ15 IrDA Connector 10 J5 USB Connector11 J13 Wake on LAN Connector 12 J14 CPU Fan Power Connector13 J20 Front Bezel Connector ATX Power on Switch Pins 7 Speaker Pins 1J20 Pin # Signal Name Power LED and Keylock Pins 11Reset Switch Pins 9 Bios Configuration AGP LANDesk User Guide Bios Setup Bios IntroductionStandard Cmos Setup Date Standard Cmos SetupLBA Mode for IDE HDD only AutoTime Primary HDDs / Secondary HDDsHalt On Floppy 3 Mode SupportDrive a / Drive B VideoBios Features Setup Virus WarningCPU Internal Cache / External Cache Boot Up NumLock Status Quick Power On Self TestBoot Sequence Boot Up Floppy SeekTypematic Rate Chars/Sec Typematic Rate SettingTypematic Delay Msec Video Bios ShadowChipset Features Setup Memory Hole at 15MB Addr Video Bios CacheableSystem Bios Cacheable Cache TimingIRQ4 COM1 Power Management SetupPM Control by APM HDD Power DownDoze Mode Suspend ModePM Events Resources Controlled by PNP/PCI ConfigurationPNP OS Installed Reset Configuration DataPCI Dynamic Bursting PCI Delay TransactionPCI#2 Access #1 Retry CPU to PCI Write BufferPCI IDE IRQ Map To Load Setup Defaults Load Bios DefaultsOnChip Primary/Secondary PCI IDE IDE Prefetch ModeIDE HDD Block Mode Integrated PeripheralsOnboard FDD Controller Uart 2 ModeOnboard Parallel Mode IDE Primary/Secondary Master/Slave UdmaSupervisor Password Supervisor / User PasswordHDD Low Level Format IDE HDD Auto DetectionExit Without Saving Save & Exit Setup