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AP440FX Motherboard
Technical Product Specification
May, 1997
Order Number 281830-002
The AP440FX motherboard may contain design defects or errors known as errata which may cause the product to deviate from published specifications. Current characterized
errata are documented in the AP440FX Motherboard Specification Update.
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Revision History Revision Revision History Date -001 Release of the AP440FX Technical Product Specification. 7/96 -002 Second release of the AP440FX Technical Product Specification 5/97 This product specification applies only to standard AP440FX motherboards with BIOS identifier 1.00.0x.CT1. Changes to this specification will be published in the AP440FX Motherboard Specification Update (Order Number: 281831) before being incorporated into a revision of this document. Information in this document
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Table of Contents 1 Motherboard Description 1.1 Overview......................................................................................................................7 1.2 Motherboard Manufacturing Options ...........................................................................9 1.3 Form Factor .................................................................................................................9 1.4 I/O Shield................................................................
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AP440FX Motherboard Technical Product Specification 1.15 Environmental............................................................................................................38 1.16 Power Consumption ..................................................................................................38 1.16.1 Power Supply Considerations .....................................................................39 1.17 Regulatory Compliance..............................................................
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Contents 4 Error Messages and Beep Codes 4.1 BIOS Beep Codes .....................................................................................................71 4.2 PCI Configuration Error Messages ............................................................................71 4.3 BIOS Error Messages................................................................................................73 4.4 ISA NMI Messages ............................................................................
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AP440FX Motherboard Technical Product Specification 32. Interrupts ...................................................................................................................44 33. Flash Memory Organization.......................................................................................45 34. Recommendations for Configuring an ATAPI Device ................................................46 35. Overview of the Setup Menu Screens ......................................................
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1 Motherboard Description 1.1 Overview The AP440FX motherboard is a 64-bit, high-performance, mixed-voltage, energy-conscious, highly integrated platform. The AP440FX motherboard supports the following set of features: • Uses a 9-inch by 13-inch LPX form factor. • Uses a type 8 Zero Insertion Force (ZIF) socket to house the standard processor, and provides ® an upgrade path to future OverDrive processors. ® • Accepts Pentium Pro processors with core clock frequencies of 150 MHz, 166 MHz, 180
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AP440FX Motherboard Technical Product Specification AB C DE FG HI J MM K LL L KK M JJ N II O HH GG P FF Q EE R DD CC S T U V BB AA Z Y X W OM06178 Figure 1. Motherboard Features Table 1. Key to Motherboard Features Key Description Key Description Key Description † A VGA connector B Serial port connector C Side-by-side USB connectors † D PS/2 mouse connector E PS/2 keyboard connector F Parallel port connector G I/O Controller (U7M1) H Microphone input jack I Audio output jack J Crystal audio con
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Motherboard Description 1.2 Motherboard Manufacturing Options Contact your local Intel Field Sales Office for options and ordering information. 1.3 Form Factor The motherboard is designed to fit into a standard LPX form factor chassis. Figure 2 illustrates the mechanical form factor for the AP440FX. The AP440FX LPX form factor adheres to the standard LPX guidelines with outer dimensions of 9 inches x 13 inches. 7.10 12.63 10.98 5.50 0.00 0.150 0.37 8.65 0.35 3.55 7.15 0.00 8.45 OM06179 Figure
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AP440FX Motherboard Technical Product Specification 1.4 I/O Shield The back panel I/O shield for the AP440FX motherboard must meet specific dimensional and material requirements. Computers based on the AP440FX motherboard need the back panel I/O shield in order to pass certification testing. Figure 3 shows the critical dimensions for the I/O shield and indicates the position of each cutout. 0.118 0.235 0.900 0.682 0.525 2.534 3.945 4.645 5.302 5.963 6.904 8.193 9.000 0.021 0.080 0.075 0.079 Ri
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Motherboard Description 1.5 Microprocessor The AP440FX motherboard operates with 2.1 V to 3.5 V Pentium Pro processors. An onboard voltage regulator circuit provides the required voltages from the 5 V and 3.3 V taps off the power supply. The onboard voltage regulator makes use of the VID capabilities to automatically adjust its voltage output to match that of the installed processor. Pentium Pro processors running at 150, 166, 180, and 200 MHz are supported. The Pentium Pro processor integrat
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AP440FX Motherboard Technical Product Specification 1.6 Main System Memory The motherboard has four 72-pin tin-lead SIMM sockets that make it possible to install up to 128 MB of RAM. The sockets support 1M x 32 (4 MB) single-sided modules, 2M x 32 (8 MB), 4M x 32 (16 MB), and 8M x 32 (32 MB) single- or double-sided modules. Minimum memory size is 8 MB and maximum memory size, using four 8M x 32 SIMM modules, is 128 MB. Memory timing requires 60 ns fast page devices or, for optimum performance
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Motherboard Description • Integrated DRAM controller ─ 64/72-bit Non-Interleaved path to memory w/ ECC support ─ Support for EDO and Fast Page DRAM ─ 8 MB to 256 MB main memory • Fully synchronous PCI bus interface ─ PCI Rev. 2.1 - 5 V interface compliant ─ 25/30/33 MHz ─ PCI to DRAM > 100 MBps • Data Buffering ─ Host-to-DRAM and PCI-to-DRAM write data buffering ─ Write combining support for host-to-PCI burst writes 1.7.2 82442FX Data Bus Accelerator (DBX) The DBX connects to the 64 bit Pentium
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AP440FX Motherboard Technical Product Specification 1.7.4 IDE Support The motherboard provides two independent high performance bus-mastering PCI IDE interfaces capable of supporting PIO Mode 3 and Mode 4 devices. The BIOS supports Logical Block Addressing (LBA) and Extended Cylinder Sector Head (ECHS) translation modes as well as ATAPI (e.g., CD-ROM) devices on both IDE interfaces. Detection of IDE device transfer rate and translation mode capability is automatically determined by the BIOS. N
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Motherboard Description 1.8 PC87307 Super I/O Controller Control for the integrated serial ports, parallel port, floppy drive, real-time clock, and keyboard controller is incorporated into a single component, the National Semiconductor PC87307. The PC87307 is a fully Plug and Play compatible device which provides: • Two NS16C550-compatible UARTs with send/receive 16 byte FIFO ─ Support for an IrDA and Consumer IR compliant Infrared interface • Multi-mode bi-directional parallel port † † ─ Stand
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AP440FX Motherboard Technical Product Specification • : Power down and coffee-break key sequences take advantage of the SMM features of the Pentium Pro processor to greatly reduce the computer’s power consumption while maintaining the responsiveness necessary to service external interrupts. • : Keyboard secure hot keys lock the keyboard until user specified password is given. 1.8.3 Real-Time Clock, CMOS RAM and Battery The integrate
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Motherboard Description 1.9.1 S3 ViRGE Graphics Subsystem The AP440FX motherboard is available with a factory option of an S3 ViRGE SVGA graphics controller with 2 MB of 50 ns EDO SOJ DRAM. The S3 ViRGE has a high performance 64-bit 2D/3D graphics engine and incorporates the S3 Streams Processor that enables the device to convert YUV formatted video data to RGB and provides acceleration for scaling the video display without compromising picture quality or frame rate. The on-chip RAMDAC/clock s
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AP440FX Motherboard Technical Product Specification 1.9.2 S3 ViRGE/DX Graphics Subsystem The optional onboard graphics subsystem uses the S3 ViRGE/DX graphics controller, with the following features: • 64-bit graphics engine with accelerator core • 24-bit RAMDAC/clock synthesizer • Dual programmable clock generators • DCI-based linear addressing scheme • S3 Streams Processor, which enables the conversion of video data from YUV format to RGB format and accelerates display scaling while maintainin
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Motherboard Description 1.10 Audio Subsystem The AP440FX motherboard features a 16-bit stereo audio subsystem as a factory installed option. The audio subsystem is based on the Crystal CS4236 multimedia codec. The CS4236 provides all the digital audio and analog mixing functions required for playing and recording of audio on personal computers. These functions include: • Stereo analog-to-digital and digital-to-analog converters • Analog mixing • Anti-aliasing and reconstruction filters • Line a
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AP440FX Motherboard Technical Product Specification When an out-of-range condition (temperature, fan speed, or voltage) is reached, an interrupt is activated. The Management Extension circuitry connects to the ISA bus as an 8-bit I/O mapped device and uses the I/O addresses identified in the I/O map. 1.12 Motherboard Connectors The AP440FX motherboard has onboard connectors supporting the following feature areas: • Front panel features • Memory (SIMM) and expansion (PCI/ISA riser) sockets • Vid
