Intel AP440FX specifications Soft-Off Control, PCI Configuration Space Map, DMA Channels

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Motherboard Resources

2.3 Soft-Off Control

The motherboard design uses Soft-off control implemented under the SMM code in the BIOS. Any power supply used with the AP440FX motherboard must support the Soft-off feature. The ONCTL# pin of the I/O controller is connected to the Soft-off control line in the power supply circuit. The registers in the I/O controller that set the I/O address and control the ONCTL# pin are not setup until the SMM code is activated.

2.4 PCI Configuration Space Map

Table 30. PCI Configuration Space Map

Bus Number (hex)

Dev Number (hex)

Function Number (hex)

Description

00

00

00

00

00

00

00

00

00

07

07

07

08

13

11

0B

00

00

01

02

00

00

00

00

Intel 82440FX (PMC) Host Bridge

Intel 82371SB (PIIX3 ) ISA bridge

Intel 82371SB (PIIX3 ) IDE Controller

Intel 82371SB (PIIX3) USB

Video Controller

PCI Expansion Slot: user available

PCI Expansion Slot: user available

PCI Expansion Slot: Optional PCI Expansion Slot for 3 slot Riser

2.5 DMA Channels

Table 31. DMA Channels

DMA

0

1

2

3

4

5

6

7

Data Width

8- or 16-bits

8- or 16-bits

8- or 16-bits

8- or 16-bits

16-bits

16-bits

16-bits

Resource

Open

Audio

Floppy

Parallel Port (for ECP/EPP Config.)

Reserved - Cascade channel

Open

Open

Open

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Contents AP440FX Motherboard Revision History RevisionDate Table of Contents AP440FX Motherboard Technical Product Specification Motherboard Bios and Setup UtilityContents Error Messages and Beep CodesAP440FX Motherboard Technical Product Specification Overview Motherboard DescriptionMotherboard Features Key to Motherboard Features Form Factor Motherboard Manufacturing OptionsMotherboard Description I/O Shield Back Panel I/O Shield DimensionsMicroprocessor Microprocessor UpgradeMicroprocessor Heatsink and Clips Parity and ECC Dram Main System MemoryChipset Dram3 82371SB PCI/ISA IDE Xccelerator PIIX3 2 82442FX Data Bus Accelerator DBXSecure Flash Support IDE SupportUSB Support Floppy Controller PC87307 Super I/O ControllerKeyboard and Mouse Interface Parallel Port Real-Time Clock, Cmos RAM and BatteryGraphics Subsystem Infrared SupportRefresh rate Hz S3 ViRGE Supported ResolutionsResolution 1 S3 ViRGE Graphics SubsystemGraphics Drivers and Utilities LBP Vesa Feature ConnectorS3 ViRGE/DX Supported Resolutions 2 S3 ViRGE/DX Graphics SubsystemManagement Extension Hardware Audio SubsystemMotherboard Connectors Motherboard Connector Locations Front Panel I/O Connector J2A1 Front Panel ConnectorsPin Signal Name Sleep/Resume Infrared ConnectorPower-ON LED SwonKeylock Connector J3A1 ResetKeylock Connector J3A1 Fan Connector J4A1Signal Pin Memory/Expansion ConnectorsPCI/ISA Riser Connector J6J2 Signal Name PinSA9 SA8 SA7 SA6 SA5 SA4 SA3 SA2 SA1 SA0 SBHE# Serial Port COM2H, J3N1 Pinout Vesa Feature ConnectorLBP Vesa Feature Connector J1K1 Serial HeaderTelephony Connector J9K1 Audio ConnectorsCD-ROM Connector J9N1 Wavetable Upgrade Connector J9L1Name Power Supply ConnectorsPrimary Power Supply Connector J9H1 External 3.3 V Power Supply Connector J9J1Pin Name Floppy/IDE ConnectorsSoft-Off Power Supply Connector J9F1 Floppy Drive Connector J8L1IDE Connectors J8H1, J9H2 Lists the pinout and signal names for the IDE connectorsVGA Video Connector Back Panel ConnectorsVGA Video Connector J1N1 12.8.2 COM1 Serial Port USB Back Panel ConnectorsKeyboard and Mouse Ports Parallel Port Parallel Port Connector PinoutDescription Pin Jumper Locations Jumper SettingsJ4L2-A J4L2-B J4L2-C Microprocessor Configuration J4L2Motherboard Configuration J4L2, J1J1 Microprocessor/System Speed SettingsJumper Configuration Jumper SettingsConfiguration ReliabilityEnvironmental Power ConsumptionMotherboard Environmental Specifications Power UsageSafety Power Supply ConsiderationsRegulatory Compliance Product Certification Markings 17.2 EMIAddress Range hex Memory MapMemory Map Address Range DecimalO Map I/O MapAddress hex Size Description DMA Channels PCI Configuration Space MapPCI Configuration Space Map Soft-Off ControlInterrupts InterruptsFlash Memory Organization Bios Flash Memory OrganizationBios Upgrades IntroductionPrimary Cable PCI Auto-ConfigurationRecommendations for Configuring an Atapi Device PCI IDE SupportISA Plug and Play Motherboard Bios and Setup UtilityDesktop Management Interface DMI Advanced Power Control APC Advanced Power Management APMLanguage Support Boot OptionsSetup Enable Jumper Overview of the Setup Menu ScreensFloppy Options Main Bios Setup ScreenSystem Date System TimeFloppy Options Subscreen Floppy B Type IDE Device Configuration SubscreenIDE Device Configuration Floppy a TypeSectors IDE Translation ModeMultiple Sector Setting HeadsBoot Options Subscreen Typematic Rate Programming Setup PromptHard Disk Pre-Delay Num LockAdvanced Screen Peripheral Configuration Subscreen Event Logging ConfigurationSerial Port 2 Address Serial Port 2 IR ModeSerial Port Configuration Options Serial Port 1 InterfaceParallel Port Type ∙ Compatible defaultParallel Port Configuration Options Parallel Port InterfaceHardware Monitor Interface ECP Compatible Configuration OptionsUSB Interface Audio InterfaceAdvanced Chipset Configuration Subscreen ISA VGA Write Combining Latency Timer PCI ClocksOnboard Video IRQ Video Palette SnoopPower Management Configuration Subscreen Plug and Play Configuration Subscreen ISA Shared Memory Size ∙ C8000h defaultISA Shared Memory Base Address Event Time Granularity Minutes IRQ 3, 4, 5, 7, 9, 10, 11, 12, 14Event Log Capacity Event Count GranularityMark Existing Events as Read ∙ Keep default∙ Do Not Mark default Clear Event LogSecurity Screen Options Security ScreenExit Screen Page PCI Configuration Error Messages Bios Beep CodesPCI Configuration Error Messages Bios Beep CodesChained PCI Error Messages Bios Error Messages Bios Error MessagesError Messages and Beep Codes ISA NMI Messages ISA NMI MessagesISA NMI Message

AP440FX specifications

The Intel AP440FX is a pivotal motherboard that was released in the late 1990s, designed to support the Intel Pentium II and Pentium III processors. Known for its robust performance and versatile functionalities, the AP440FX became a popular choice among computer enthusiasts and system builders during its time.

One of the defining features of the Intel AP440FX is its support for the Intel 440FX chipset. This chipset provided improved system performance through its use of a 66 MHz front-side bus, which allowed for faster data transfer between the CPU and the memory. The motherboard was equipped with two DIMM slots capable of supporting a maximum of 512 MB of SDRAM, providing users with the flexibility to choose the amount of memory they required for their applications.

Another notable characteristic of the AP440FX motherboard is its integrated support for various peripheral interfaces. It comes equipped with multiple ISA and PCI slots, allowing users to expand their system capabilities through the addition of various cards. The presence of two USB ports, which were relatively new at the time of its release, gave users access to a wider range of peripherals and external devices.

The Intel AP440FX also features an integrated IDE controller, enabling connection for hard drives and optical drives without the need for additional controller cards. This integrated solution simplified storage management for users and contributed to the overall efficiency of the system. The motherboard also supported SCSI through optional daughter cards, catering to users who required high-speed data transfer and reliable disk storage solutions.

Moreover, the AP440FX was designed with future upgrades in mind. Its BIOS supported plug-and-play installations, allowing users to easily configure new hardware components without extensive troubleshooting. Additionally, the ATX form factor of the motherboard contributed to its compatibility with a wide range of cases and power supplies.

In terms of power management, the Intel AP440FX incorporated advanced features such as ACPI (Advanced Configuration and Power Interface), which allowed for better power efficiency and management of power states. This feature was particularly beneficial for users looking to reduce energy consumption and improve the overall longevity of their systems.

All in all, the Intel AP440FX represented a significant advancement in motherboard technology during its era. Its combination of robust performance, upgradeability, and support for new technologies made it a popular choice for users looking to build powerful and efficient computing systems.