Table of Contents
Advertisement
Quick Links
AP440FX Motherboard
Technical Product Specification
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.
May, 1997
Order Number 281830-002
Advertisement
Table of Contents
Related Manuals for Intel AP440FX
Summary of Contents for Intel AP440FX
- Page 1 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.
-
Page 2: Revision History
Intel retains the right to make changes to specifications and product descriptions at any time, without notice. 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 available on request. -
Page 3: Table Of Contents
Table of Contents 1 Motherboard Description Overview........................7 Motherboard Manufacturing Options ................9 Form Factor ......................... 9 I/O Shield........................10 Microprocessor ......................11 1.5.1 Microprocessor Upgrade ................11 1.5.2 Microprocessor Heatsink and Clips ............. 11 Main System Memory ....................12 1.6.1 DRAM...................... - Page 4 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....................39 1.17.1 Safety ......................39 1.17.2 EMI ......................40 1.17.3 Product Certification Markings..............40 2 Motherboard Resources Memory Map......................41 I/O Map........................
- Page 5 Contents 4 Error Messages and Beep Codes BIOS Beep Codes ..................... 71 PCI Configuration Error Messages ................71 BIOS Error Messages ....................73 ISA NMI Messages ....................74 Figures Motherboard Features ....................8 Motherboard Dimensions..................... 9 Back Panel I/O Shield Dimensions ................10 Motherboard Connector Locations................
- Page 6 AP440FX Motherboard Technical Product Specification Interrupts ........................44 Flash Memory Organization..................45 Recommendations for Configuring an ATAPI Device ..........46 Overview of the Setup Menu Screens ............... 50 Serial Port Configuration Options ................58 Parallel Port Configuration Options................59 ECP - Compatible Configuration Options..............60 Event Log Subscreens....................
-
Page 7: Motherboard Description
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 ®... -
Page 8: Motherboard Features
AP440FX Motherboard Technical Product Specification OM06178 Figure 1. Motherboard Features Table 1. Key to Motherboard Features Key Description Description Key Description † connector Serial port connector Side-by-side USB connectors † PS/2 mouse connector PS/2 keyboard connector Parallel port connector I/O Controller (U7M1) -
Page 9: Motherboard Manufacturing Options
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. -
Page 10: I/O Shield
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. -
Page 11: Microprocessor
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. -
Page 12: Main System Memory
DMA or memory conflicts. 1.7 Chipset The Intel 82440FX PCIset consists of the 82441FX PCI Bridge and Memory controller (PMC) and the 82442FX Data Bus Accelerator (DBX). The Intel 82371SB PCI ISA/IDE Xccelerator (PIIX3) bridge, provides the connection between the ISA and PCI buses. -
Page 13: 82442Fx Data Bus Accelerator (Dbx)
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 ... -
Page 14: Ide Support
Detailed information on the PCIset is available in the Intel 82440FX PCISet data sheet. 1.7.5 Secure Flash Support The AP440FX motherboard uses both onboard hardware and BIOS code support to protect the onboard flash memory device from accidentally or intentionally being corrupted. A general purpose I/O (GPIO) port of the I/O controller is used to control the write enable line of the flash device. -
Page 15: Pc87307 Super I/O Controller
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: •... -
Page 16: Real-Time Clock, Cmos Ram And Battery
SVGA graphics controller. Both options are supported by 2 MB of 50 ns EDO SOJ DRAM soldered to the motherboard. The AP440FX motherboard also supports the S3 media channel, also known as the Local Peripheral Bus (LBP) or Scenic Highway. -
Page 17: S3 Virge Graphics Subsystem
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... -
Page 18: S3 Virge/Dx Graphics Subsystem
Scenic Highway that provides a glueless bi-directional interface to a video companion device such as an MPEG/live video decoder. The AP440FX also supports other VESA standards such as the VESA DPMS protocol to put a DPMS compliant monitor into power saving modes and the VESA Display Data Channel (DDC2B) that permits transfer of monitor identification and resolution support data for ease of use. -
Page 19: Audio Subsystem
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. -
Page 20: Motherboard Connectors
Memory (SIMM) and expansion (PCI/ISA riser) sockets • Video features • Serial header • Audio features • Power connectors • Floppy and PCI IDE connectors Figure 4 identifies the connectors on the AP440FX motherboard, and indicates the feature area with which each connector is associated. -
Page 21: Motherboard Connector Locations
Motherboard Description Audio Serial PCI/ISA Riser Connector(J6J2) J3N1 J9L1 Bank 0(J6J1, J7J1) Bank 1(J7J2, J7J3) Wavetable COM2H CD-ROM J9N1 J9K1 Video Telephony VESA J1K1 Power 3.3V Power J9J1 Primary Floppy/IDE Power Secondary J9H1 Primary J9F1 Floppy Soft Drive J8L1 Front Panel J4A1 PCI IDE J3A1... -
Page 22: Front Panel Connectors
AP440FX Motherboard Technical Product Specification 1.12.1 Front Panel Connectors The AP440FX motherboard provides connectors to support functions typically located on the chassis bezel. In addition, connectors are provided that support a cooling fan and a keyboard lock. Front panel features supported by front panel connectors include: •... - Page 23 Motherboard Description 1.12.1.1 SW_ON This 2-pin header connects to a front panel power switch. When the switch is closed, the power supply turns on. If a mechanical switch is connected to this header, it must apply a momentary ground to the SW_ON header pin in order to signal the supply to turn on or off. Because of the motherboard’s internal debounce circuitry, the ground must be applied for at least 50ms.
-
Page 24: Fan Connector Usage
AP440FX Motherboard Technical Product Specification 1.12.1.6 Reset This 2-pin header can be connected to a momentary SPST type switch that is normally open. When the switch is closed, the computer performs a hard reset and runs POST. 1.12.1.7 Speaker The speaker provides error beep code information during the POST, if the computer cannot use the video interface. -
Page 25: Memory/Expansion Connectors
ISA boards. The associated riser board can support either two or three PCI slots. A pair of jumpers on the AP440FX motherboard must be set to define the number of PCI slots on the riser board. Refer to Figure 8 on page 35 for jumper block details. Table 7 shows the pinout listing for the PCI/ISA riser connector. - Page 26 AP440FX Motherboard Technical Product Specification Table 7. PCI/ISA Riser Connector (J6J2) (continued) Signal Name Signal Name Signal Signal Name SA12 REFRESH# AD26 AD25 SA11 SYSCLK AD24 CBE3# SA10 IRQ7 AD22 AD23 IRQ6 AD20 AD21 IRQ5 AD18 AD19 IRQ4 3.3 V 3.3 V...
-
Page 27: Vesa Feature Connector
Motherboard Description 1.12.3 VESA Feature Connector Table 8 provides the pinout and signal listing for the LBP VESA feature connector. Table 8. LBP VESA Feature Connector (J1K1) Signal Name / Function Signal Name / Function Ground Pixel Data 0 Ground Pixel Data 1 Ground Pixel Data 2... -
Page 28: Audio Connectors
AP440FX Motherboard Technical Product Specification 1.12.5 Audio Connectors The pinouts and signal listings for the audio connectors are provided in Table 10, Table 11, and Table 12. Table 10. CD-ROM Connector (J9N1) Signal Name Ground CD-Left Ground CD-Right Table 11. Wavetable Upgrade Connector (J9L1) -
Page 29: Power Supply Connectors
Motherboard Description 1.12.6 Power Supply Connectors The AP440FX motherboard must be used with a power supply that supports remote power on/off, so the motherboard can turn off the power under software control. The Powerman utility supplied for Windows 3.1x allows for soft-off as does the shutdown icon in Windows 95 Start menu. The BIOS turns the power off when it receives the proper APM command from the operating system. -
Page 30: Floppy/Ide Connectors
AP440FX Motherboard Technical Product Specification The pinout listing for the soft-off power supply connector of the AP440FX motherboard is shown in Table 15. This 3-pin, keyed position supports a software-controlled power supply shutoff (soft- off). When connected to this position, the power supply follows remote on/off commands. -
Page 31: Ide Connectors (J8H1, J9H2)
Motherboard Description Table 17 lists the pinout and signal names for the IDE connectors. Table 17. IDE Connectors (J8H1, J9H2) Signal Name Signal Name Reset IDE Ground Host Data 7 Host Data 8 Host Data 6 Host Data 9 Host Data 5 Host Data 10 Host Data 4 Host Data 11... -
Page 32: Back Panel Connectors
AP440FX Motherboard Technical Product Specification 1.12.8 Back Panel Connectors Figure 7 shows the location of the back panel connectors. Audio PS/2 Mouse Mic Input Parallel Port PS/2 USB 1 USB 2 Serial VGA Video Keyboard Port 1 OM06183 Figure 7. I/O Connections 1.12.8.1... -
Page 33: Serial Port Connector Pinout
Motherboard Description 1.12.8.2 COM1 Serial Port Table 19 lists the pinout and signal names for the serial connectors. Table 19. Serial Port Connector Pinout Signal Name Description Carrier Detect SIN# Serial Data In SOUT# Serial Data Out DTR# Data Terminal Ready Chassis Ground DSR# Data Set Ready... -
Page 34: Parallel Port Connector Pinout
AP440FX Motherboard Technical Product Specification 1.12.8.5 Parallel Port Table 22 lists the pinout and signal names for the parallel port connector. Table 22. Parallel Port Connector Pinout Signal Name Description Signal Name Description STB# Strobe AFD# Auto Feed PPD0 Data Bit 0... -
Page 35: Jumper Settings
Motherboard Description 1.13 Jumper Settings There are three jumper blocks on the AP440FX motherboard. The jumper block at J1J1 defines the number of PCI slots (two or three slots) available on the riser board used with the motherboard. The jumper block at J4L2 defines a range of microprocessor and motherboard configuration parameters. -
Page 36: Microprocessor Configuration (J4L2)
AP440FX Motherboard Technical Product Specification 1.13.1 Microprocessor Configuration (J4L2) These allow the motherboard to be switched between different speeds of the Pentium Pro processor. These jumpers also affect the PCI and ISA clock speeds as shown in Table 23. Table 23. Microprocessor/System Speed Settings... -
Page 37: Reliability
Note: The text appearing in a BOLD-ITALIC font duplicates the text of the motherboard silk-screening. 1.14 Reliability The Mean-Time-Between-Failures (MTBF) data is calculated from predicted data @55 °C in accordance with the Intel Reliability Policy and Procedures Handbook. Motherboard 60239 Hours... -
Page 38: Environmental
Table 26 lists the voltage and current specifications for a hypothetical computer configured with the AP440FX motherboard and the following components: a 200 MHz Pentium Pro processor w/ 256 KB Cache, 16 MB EDO DRAM, 3.5-inch floppy drive, 1.6 GB IDE hard drive, and 4X IDE CD-ROM. -
Page 39: Power Supply Considerations
Motherboard Description 1.16.1 Power Supply Considerations The AP440FX motherboard is designed to operate with a switching power supply in the PS/2 form-factor with dual line input capability, remote ON/OFF, forced air cooling, standby voltage (VSB), and the following electrical characteristics: •... -
Page 40: Emi
AP440FX Motherboard Technical Product Specification 1.17.1.5 EMKO-TSE (74-SEC) 207/94 Summary of Nordic deviations to EN 60 950. (Norway, Sweden, Denmark & Finland) 1.17.2 EMI 1.17.2.1 FCC Class B Title 47 of the Code of Federal Regulations, Parts 2 & 15, Subpart B, pertaining to unintentional radiators. -
Page 41: Motherboard Resources
Motherboard Resources 2.1 Memory Map Table 28. Memory Map Address Range (Decimal) Address Range (hex) Size Description 1024K-131072K 100000-8000000 127M Extended Memory 960K-1023K F0000-FFFFF AMI BIOS 944K-959K EC000-EFFFF Boot Block 936K-943K EA000-EBFFF ESCD (Plug and Play configuration area) 932K-935K E9000-E9FFF Reserved for BIOS 928K-931K E8000-E8FFF... -
Page 42: I/O Map
AP440FX Motherboard Technical Product Specification 2.2 I/O Map Table 29. I/O Map Address Address (hex) Size Description (hex) Size Description 0000 - 000F 16 bytes PIIX3 - DMA 1 0376 1 byte Sec IDE Chan Cmd Port 0020 - 0021... -
Page 43: 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. -
Page 44: Interrupts
AP440FX Motherboard Technical Product Specification 2.6 Interrupts Table 32. Interrupts Resource I/O Channel Check Reserved, Interval Timer Reserved, Keyboard buffer full Reserved, Cascade interrupt from slave PIC Serial Port 2 Serial Port 1 Audio - Codec Floppy Parallel Port 1... -
Page 45: Motherboard Bios And Setup Utility
The initial production BIOS in the motherboard is identified as 1.00.01.CT1. 3.2 BIOS Flash Memory Organization The Intel PA28FB002BX 2 MB flash component is organized as 256K x 8 (256 KB). The flash device is divided into seven areas, as described in Table 33. -
Page 46: Pci Ide Support
AP440FX Motherboard Technical Product Specification The disk-based Flash upgrade utility, FMUP.EXE, has three options for BIOS upgrades: • The Flash BIOS can be updated from a file on a disk. • The current BIOS code can be copied from the Flash EEPROM to a disk file as a backup in the event that an upgrade cannot be successfully completed. -
Page 47: Isa Plug And Play
GPNV. The included MIF database defines the data and provides the method for accessing the information. The AP440FX BIOS provides the first stage of DMI v. 2.0 support, including static system configuration information, including motherboard and peripheral data. Future AP440FX product releases will provide event detection and error logging, achieving the maximum benefit of DMI with applications such as LANDesk Client Manager from Intel. -
Page 48: Advanced Power Management (Apm)
AP440FX Motherboard Technical Product Specification 3.8 Advanced Power Management (APM) This section describes the use of System Management Mode (SMM) by the BIOS. The BIOS supports APM version 1.2. APM is enabled in BIOS by default; however, the computer must be configured with an APM driver to utilize the system power saving features. -
Page 49: Language Support
OEM may use this area to display a custom logo. The BIOS accesses the user area just after completing POST. A utility is available from Intel to assist with installing a logo into flash for display during POST. Contact your local Intel Sales office or authorized distributor for further information. -
Page 50: Main Bios Setup Screen
AP440FX Motherboard Technical Product Specification Table 35. Overview of the Setup Menu Screens Setup Menu Screen Description Main Set up and modify some of the basic options of a PC, such as time, date, diskette drives, hard drives. Advanced Modify the more advanced features of a PC, such as peripheral configuration and advanced chipset configuration. -
Page 51: Floppy Options Subscreen
Motherboard BIOS and Setup Utility 3.14.1.5 Primary IDE Slave Reports if an IDE device is connected to the computer. When selected, this brings up the IDE Device Configuration subscreen. 3.14.1.6 Secondary IDE Master Reports if an IDE device is connected to the computer. When selected, this brings up the IDE Device Configuration subscreen. -
Page 52: Ide Device Configuration Subscreen
AP440FX Motherboard Technical Product Specification 3.14.2.3 Floppy A: Type Specifies the physical size and capacity of the floppy drive. The options are: • Disabled • 360 KB, 5.25-inch • 1.2 MB, 5.25-inch • 720 KB, 3.5-inch • 1.44/1.25 MB, 3.5-inch (default) •... - Page 53 Motherboard BIOS and Setup Utility 3.14.3.3 Heads If IDE Device Configuration is set to User Definable, you must type the correct number of heads for your IDE device. If IDE Device Configuration is set to Auto Configured, this reports the number of heads for your IDE device and cannot be modified.
-
Page 54: Boot Options Subscreen
AP440FX Motherboard Technical Product Specification 3.14.4 Boot Options Subscreen This section describes the options available on the Boot Options subscreen. 3.14.4.1 First Boot Device Sets which drive the computer checks first to find a bootable operating system. The options are: •... - Page 55 Motherboard BIOS and Setup Utility 3.14.4.7 Num Lock Sets the state of the Num Lock feature on your keyboard when you boot. The options are: • • Off (default) • 3.14.4.8 Setup Prompt Turns on (or off) the “Press <F1> Key if you want to run Setup” prompt during the power-up sequence.
-
Page 56: Advanced Screen
AP440FX Motherboard Technical Product Specification 3.14.4.11 Typematic Rate Delay Sets how long it takes (in milliseconds) for the key-repeat function to start when you hold down a key on the keyboard. The options are: • 250 msec (default) • 500 msec •... -
Page 57: Event Logging Configuration
Motherboard BIOS and Setup Utility 3.14.5.2 Processor Speed Reports the microprocessor clock speed. There are no options. 3.14.5.3 Cache Size Reports the size of the secondary cache. There are no options. If your computer contains no L2 cache, this item does not appear. 3.14.5.4 Peripheral Configuration When selected, this brings up the Peripheral Configuration subscreen. -
Page 58: Serial Port Configuration Options
AP440FX Motherboard Technical Product Specification 3.14.7.4 Serial Port 1 Interface Configures serial port 1. The options are described and listed in Table 36. The default option is Auto Configured. If the Configuration Mode is set to Auto Configured, the Setup program assigns the first free COM port (normally COM1, 3F8h) to serial port 1. -
Page 59: Parallel Port Configuration Options
Motherboard BIOS and Setup Utility 3.14.7.7 Parallel Port Interface Selects the address and IRQ of the parallel port. The options are described and listed in Table 37. If the Configuration Mode is set to Auto Configured, the Setup program assigns LPT1, 378h, IRQ7 to the parallel port. -
Page 60: Ecp - Compatible Configuration Options
AP440FX Motherboard Technical Product Specification Table 38 lists and describes the options that are available if the parallel port mode is ECP. Table 38. ECP - Compatible Configuration Options Option Description Disable Port not enabled LPT1, 378, IRQ7, DMA3 Enabled as LPT1 at indicated I/O address, IRQ, and DMA channel. -
Page 61: Advanced Chipset Configuration Subscreen
Motherboard BIOS and Setup Utility 3.14.7.13 Secondary PCI IDE Status Displays the current status of the Secondary PCI IDE Interface from the selectable setting above. This is an informational field and is not accessible. 3.14.7.14 Floppy Status Reports the current status of the floppy drive from the selectable setting above. There are no options. - Page 62 AP440FX Motherboard Technical Product Specification 3.14.8.4 Onboard Video IRQ Enables or disables the onboard video IRQ. The options are: • Disabled (default) • Enabled 3.14.8.5 Video Palette Snoop Controls the ability of a primary PCI graphics controller to share a common palette with an ISA add-in video card.
-
Page 63: Power Management Configuration Subscreen
Motherboard BIOS and Setup Utility 3.14.8.8 Memory Error Detection Sets the type of error detection or correction. The options are: • Disabled (default) • • Parity This field appears if either ECC or Parity SIMMs are detected. Parity and ECC SIMMs can be configured to run either as Parity or ECC (e.g. -
Page 64: Plug And Play Configuration Subscreen
AP440FX Motherboard Technical Product Specification 3.14.9.4 Inactivity Timer (Minutes) Sets how long the computer must be inactive before it enters power managed mode. Enter the number of minutes. The range is 0 to 255 minutes. The default is 10 minutes. - Page 65 Motherboard BIOS and Setup Utility 3.14.10.3 ISA Shared Memory Size Sets a range of memory addresses that will be directed to the ISA bus rather than on-board memory. The options are: • • Disabled (default) • 16 KB • 32 KB •...
-
Page 66: Event Logging Configuration
AP440FX Motherboard Technical Product Specification 3.14.10.5 IRQ 3, 4, 5, 7, 9, 10, 11, 12, 14, 15 Sets the status of the IRQ. The options are: • Available (default) • Used By ISA Card The PCI auto-configuration code looks here to see if these interrupts are available for use by a PCI or Plug and Play device. -
Page 67: Event Log Subscreens
Motherboard BIOS and Setup Utility 3.14.11.5 Clear Event Log Sets a flag that clears the event log on the next pass through the POST. The options are: • Keep (default) • On Next Boot 3.14.11.6 Mark Existing Events as Read Marks all events already in the log as having been not read (Do Not Mark) or read (Mark). -
Page 68: Security Screen
AP440FX Motherboard Technical Product Specification 3.14.12 Security Screen This section describes the two access modes that can be set using the options found on the Security screen, and then describes the Security screen options themselves. 3.14.12.1 Administrative and User Access Modes... -
Page 69: Exit Screen
Motherboard BIOS and Setup Utility 3.14.13.4 Set Administrative Password Sets the Administrative password. The password can be up to seven alphanumeric characters. 3.14.14 Exit Screen This section describes the different ways to exit and save or not save changes made in the Setup program. -
Page 71: Error Messages And Beep Codes
Error Messages and Beep Codes 4.1 BIOS Beep Codes Table 41. BIOS Beep Codes Beeps Error Message Description Refresh Failure The memory refresh circuitry on the motherboard is faulty. Parity Error A parity error has been detected. Base 64 KB Memory Failure Memory failure in the first 64 KB. -
Page 72: Chained Pci Error Messages
AP440FX Motherboard Technical Product Specification Table42. PCI Configuration Error Messages (continued) Error Message Explanation NVRAM Cleared By Jumper The “Clear CMOS” jumper has been moved to the “CLR” position and CMOS RAM has been cleared. NVRAM Data Invalid, NVRAM Cleared Invalid entry in the ESCD. -
Page 73: Bios Error Messages
Error Messages and Beep Codes 4.3 BIOS Error Messages Table 44. BIOS Error Messages Error Message Explanation Gate A20 Error Gate A20 on the keyboard controller is not working. Address Line Short! Error in the address decoding circuitry on the motherboard. Cache Memory Bad, Do Not Cache memory is defective. -
Page 74: Isa Nmi Messages
AP440FX Motherboard Technical Product Specification 4.4 ISA NMI Messages Table 45. ISA NMI Messages ISA NMI Message Explanation Memory Parity Error at xxxxx Memory failed. If the memory location can be determined, it is displayed as xxxxx. If not, the message is Memory Parity Error ????.
Need help?
Do you have a question about the AP440FX and is the answer not in the manual?
Questions and answers