Intel KU440EX User Manual

KU440EX Motherboard

Technical Product Specification

May 1998 Order Number 704768-001

The KU440EX 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 KU440EX Motherboard Specification Update.

Revision History

Revision Revision History Date

001 Final release of the KU440EX Motherboard Technical Product

Specification.

This product specification applies only to standard KU440EX motherboards with BIOS identifier 4K4UE0X0.86A.000X.P0X.

Changes to this specification will be published in the KU440EX Motherboard Specification Update before being incorporated into a revision of this document.

April 1998

Information in this document is provided in connection with Intel products. No license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted by this document. Except as provided in Intel's Terms and Conditions of Sale for such products, Intel assumes no liability whatsoever, and Intel disclaims any express or implied warranty, relating to sale and/or use of Intel products including liability or warranties relating to fitness for a particular purpose, merchantability, or infringement of any patent, copyright or other intellectual property right. Intel products are not intended for use in medical, life saving, or life sustaining applications.

Intel retains the right to make changes to specifications and product descriptions at any time, without notice. The KU440EX 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. Contact your local Intel sales office or your distributor to obtain the latest specifications before placing your product order. Copies of documents which have an ordering number and are referenced in this document, or other Intel literature, may be

obtained from:

Intel Corporation P.O. Box 5937 Denver, CO 80217-9808

or call in North America 1-800-548-4725, Europe 44-0-1793-431-155, France 44-0-1793-421-777, Germany 44-0-1793-421-333, other Countries 708-296-9333.

†

Brand, name or trademark owned by another company.

1 Motherboard Description

1.1 Overview .....................................................................................................................7

1.2 Manufacturing Options ................................................................................................ 8

1.3 Motherboard Components........................................................................................... 9

1.4 Form Factor................................................................................................................10

1.5 I/O Shield...................................................................................................................11

1.6 Microprocessor...........................................................................................................12

1.6.1 Microprocessor Packaging...........................................................................12

1.6.2 Second Level Cache....................................................................................12

1.6.3 Microprocessor Upgrades............................................................................12

1.7 Main Memory..............................................................................................................13

1.8 Chipset.......................................................................................................................13



1.8.1 Intel

1.8.2 Intel

1.9 I/O Interface Controller...............................................................................................17

1.9.1 Serial Ports ..................................................................................................17

1.9.2 Infrared Support...........................................................................................18

1.9.3 Parallel Port..................................................................................................18

1.9.4 Diskette Drive Controller ..............................................................................18

1.9.5 PS/2 Keyboard and Mouse Interface............................................................19

1.10 Audio Subsystem........................................................................................................19

1.10.1 Crystal Semiconductor CS4235 Audio Codec..............................................19

1.10.2 Audio Connectors.........................................................................................19

1.10.3 Audio Drivers and Utilities ............................................................................19

1.11 Graphics Subsystem ..................................................................................................20

1.11.1 ATI Rage IIC Controller................................................................................20

1.11.2 ATI Rage Pro 1X AGP (Optional).................................................................20

1.12 LAN Subsystem..........................................................................................................20

1.12.1 Intel

1.13 Wake on LAN Technology..........................................................................................21

1.14 Hardware Monitor Subsystem ....................................................................................22

1.15 Fan Speed Control .....................................................................................................22

1.15.1 Fan Header..................................................................................................22

1.15.2 Fan Control Signal on the Riser ...................................................................22

1.15.3 System Management Support......................................................................23

1.16 Motherboard Connectors............................................................................................24

1.16.1 Power Supply Connector..............................................................................26

1.16.2 Back Panel Connectors................................................................................27

1.17 NLX Card Edge Connector.........................................................................................31

1.18 Jumper Settings .........................................................................................................39

1.19 Reliability....................................................................................................................40

82443EX PCI/A.G.P. Controller (PAC)...............................................14



82371EB PCI ISA IDE Xcelerator (PIIX4E).........................................15

82558 LAN Controller.........................................................................21

iii

KU440EX Motherboard Technical Product Specification

1.20 Environmental Specifications......................................................................................40

1.21 Power Consumption...................................................................................................41

1.22 Thermal Considerations..............................................................................................41

1.23 Regulatory Compliance ..............................................................................................43

2 Motherboard Resources

2.1 Memory Map ..............................................................................................................45

2.2 DMA Channels ...........................................................................................................45

2.3 I/O Map ......................................................................................................................46

2.4 PCI Configuration Space Map ....................................................................................47

2.5 Interrupts....................................................................................................................47

2.6 PCI Interrupt Routing Map..........................................................................................48

3 Overview of BIOS Features

3.1 BIOS Upgrades ..........................................................................................................49

3.2 BIOS Flash Memory Organization..............................................................................50

3.3 Plug and Play: PCI Autoconfiguration........................................................................50

3.4 PCI IDE Support.........................................................................................................51

3.5 ISA Plug and Play.......................................................................................................51

3.6 ISA Legacy Devices ...................................................................................................51

3.7 System Management BIOS (SMBIOS).......................................................................52

3.8 Advanced Power Management (APM)........................................................................52

3.9 Advanced Configuration and Power Interface (ACPI).................................................53

3.9.1 System States and Power States.................................................................53

3.9.2 Wake Up Devices and Events......................................................................54

3.9.3 Plug and Play...............................................................................................54

3.9.4 BIOS Support...............................................................................................55

3.10 Language Support......................................................................................................55

3.11 Boot Options...............................................................................................................55

3.12 OEM Logo or Scan Area ............................................................................................55

3.13 USB Legacy Support..................................................................................................56

3.14 BIOS Setup Access....................................................................................................56

3.15 Recovering BIOS Data ...............................................................................................56

4 BIOS Setup Program

4.1 Maintenance Menu.....................................................................................................58

4.2 Main Menu..................................................................................................................58

4.3 Advanced Menu..........................................................................................................59

4.3.1 Peripheral Configuration Submenu...............................................................60

4.3.2 IDE Configuration.........................................................................................61

4.3.3 IDE Configuration Submenus.......................................................................62

4.3.4 Floppy Options Submenu.............................................................................63

4.3.5 DMI Event Logging.......................................................................................63

4.3.6 Video Configuration Submenu......................................................................63

4.3.7 Resource Configuration Submenu................................................................64

4.4 Security Menu ............................................................................................................64

4.5 Power Menu...............................................................................................................65

4.6 Boot Menu..................................................................................................................65

4.6.1 Hard Drive Submenu....................................................................................66

4.6.2 Removable Devices Submenu.....................................................................66

4.7 Exit Menu ...................................................................................................................67

5 Error Messages and Beep Codes

5.1 BIOS Error Messages.................................................................................................69

5.2 Port 80h POST Codes................................................................................................71

5.3 BIOS Beep Codes......................................................................................................76

6 Specifications and Customer Support

6.1 Online Support ...........................................................................................................77

6.2 Specifications .............................................................................................................77

Figures

1. Motherboard Components........................................................................................... 9

2. Motherboard Dimensions............................................................................................10

3. Back Panel I/O Shield Dimensions.............................................................................11

4. Motherboard Connectors............................................................................................24

5. Back Panel I/O Connectors ........................................................................................27

6. Location of the Configuration Jumper Block ...............................................................39

7. Thermally-Sensitive Components...............................................................................42

Contents

Tables

1. Fan Speed Control under APM OS.............................................................................23

2. Fan Speed Control under ACPI OS............................................................................23

3. Serial Port B Header (J5J1)........................................................................................25

4. Microphone Routing Jumper (J8K2)...........................................................................25

5. CD Audio (J8J1).........................................................................................................25

6. Fan Connector (J1A1)................................................................................................25

7. Power Supply Connector............................................................................................26

8. Audio Mic In Connector (J8K1)..................................................................................28

9. Audio Line Out Connector (J7K1)..............................................................................28

10. Stacked USB Connectors (J6K2)................................................................................28

11. PS/2 Keyboard/Mouse Connectors (J5K1, J6K1).......................................................28

12. RJ-45 LAN Connector (J4K1).....................................................................................29

13. Serial Port A Connector (J3K1) ..................................................................................29

14. Video Connector (J1K1) .............................................................................................29

15. Parallel Port Connector (J2K1)...................................................................................30

16. PCI Segment, Riser Interconnect ...............................................................................31

17. ISA Segment, Riser Interconnect ...............................................................................33

18. IDE, Floppy, and Front Panel Section, Riser Interconnect..........................................34

19. Signals, NLX Riser with Supplemental Connector ......................................................37

20. Configuration Jumper Settings ...................................................................................39

21. Environmental Specifications......................................................................................40

22. Power Usage..............................................................................................................41

23. Thermal Considerations for Components ...................................................................42

24. Processor Fan DC Power Requirements (J1A1).........................................................43

KU440EX Motherboard Technical Product Specification

25. Safety Regulations .....................................................................................................43

26. EMC Regulations........................................................................................................43

27. Memory Map ..............................................................................................................45

28. DMA Channels ...........................................................................................................45

29. I/O Map ......................................................................................................................46

30. PCI Configuration Space Map ....................................................................................47

31. Interrupts....................................................................................................................47

32. PCI Interrupt Routing Map..........................................................................................48

33. Flash Memory Organization........................................................................................50

34. Recommendations for Configuring an ATAPI Device..................................................51

35. Effects of Pressing the Power Switch.........................................................................53

36. Power States and Targeted System Power................................................................54

37. Wake Up Devices and Events ....................................................................................54

38. Setup Menu Bar .........................................................................................................57

39. Setup Function Keys ..................................................................................................57

40. Maintenance Menu.....................................................................................................58

41. Main Menu..................................................................................................................58

42. Advanced Menu..........................................................................................................59

43. Peripheral Configuration Submenu.............................................................................60

44. IDE Configuration.......................................................................................................61

45. IDE Configuration Submenus .....................................................................................62

46. Floppy Options Submenu...........................................................................................63

47. DMI Event Logging Submenu.....................................................................................63

48. Video Configuration Submenu....................................................................................63

49. Resource Configuration Submenu..............................................................................64

50. Security Menu ............................................................................................................64

51. Power Menu...............................................................................................................65

52. Boot Menu..................................................................................................................65

53. Hard Drive Submenu..................................................................................................66

54. Removable Devices Submenu....................................................................................66

55. Exit Menu ...................................................................................................................67

56. BIOS Error Messages.................................................................................................69

57. Port 80h Codes ..........................................................................................................71

58. Beep Codes................................................................................................................76

59. Compliance with Specifications ..................................................................................77

1 Motherboard Description

1.1 Overview

The KU440EX motherboard is a versatile platform that offers a wide variety of features. Many of the options, however, are implemented – at least in part – on the riser. Throughout this manual,

‡

symbol is used to indicate such an option. Because there is no standard riser, no detailed

the description of an implementation can be given. See Section 6.1 to obtain the reference design for the NLX riser.

The KU440EX motherboard uses the NLX form factor (8.25 x 10.0 inches) and has the following features:

Microprocessor:



• Single Pentium



• Intel

• 66 MHz host bus speed

• Slot 1 connector which provides an upgrade path that includes higher performance processors

Main memory:

• Two 168-pin DIMM sockets

• Supports from 8 MB up to 256 MB of synchronous DRAM (SDRAM) memory

Intel

• Intel 82443EX PCI/A.G.P. controller (PAC)

• Intel 82371EB PCI ISA IDE Xcelerator (PIIX4E)

Celeron processor operating at 266 MHz



82440EX AGPset and PCI/IDE Interface

 Integrated PCI bus mastering controller  Integrated Accelerated Graphics Port (A.G.P.) controller

 Supports up to four IDE drives or devices  Multifunction PCI-to-ISA bridge  Universal Serial Bus (USB) and DMA controllers  Two fast IDE interfaces  Power management logic  Real-time clock

II processor operating at 233, 266, 300, or 333 MHz

I/O features:

• SMC FDC37M707QFP I/O controller  Integrates standard I/O functions

• Two USB ports

Audio subsystem:

• Crystal Audio 4235 ISA controller

KU440EX Motherboard Technical Product Specification

Graphics subsystem

†

• ATI Rage

IIC A.G.P. controller

• 2 or 4 MB SGRAM

Expansion slots

• Riser dependent

Other features

• Plug and Play compatible

• Support for Advanced Power Management (APM)

• Advanced Configuration and Power Management Interface (ACPI) ready

• Support for WfM 1.1a

• Support for Management Level 3.0

1.2 Manufacturing Options

The following is a list of manufacturing options. Not all manufacturing options are available in all marketing channels. Please contact your Intel representative to determine which options are available to you.

• ATI Rage Pro Turbo A.G.P. controller

• 4 MB SGRAM

1.3 Motherboard Components

Motherboard Description

B C

D E

K I HJ

A Back panel connectors G Configuration jumper B Microphone routing jumper H Battery C COM2 header I Piezoelectric speaker D CD-ROM audio connector J Slot 1 connector E NLX edge connector (supplemental) K Processor fan connector F NLX edge connector L DIMM sockets

Figure 1. Motherboard Components

OM07101

KU440EX Motherboard Technical Product Specification

1.4 Form Factor

The motherboard is designed to fit into a or a full NLX form-factor chassis. The outer dimensions are 8.25 x 10.0 inches. (Full NLX dimensions are 9.0 x 13.0 inches.) Figure 2 shows that the mechanical form factor, the I/O connector locations, and the mounting hole locations are in compliance with the NLX specification (see Section 6.2).

0.00

0.60

0.00

0.349

0.509

2.975

9.40

9.20

8.05

7.60

4.20

Figure 2. Motherboard Dimensions

5.159

9.234

0.20

OM07103

Motherboard Description

1.5 I/O Shield

The back panel I/O shield for the motherboard must meet specific dimension and material requirements. Systems based on this motherboard need the back panel I/O shield to pass certification testing. Figure 3 shows the critical dimensions of the chassis-dependent I/O shield. The figure indicate the position of each cutout. Additional design considerations for I/O shields relative to chassis requirements are described in the NLX specification. See Section 6.2 for information about the NLX specification.

NOTE

✏

A chassis-independent I/O shield designed to be compliant with the NLX specification 1.2 is available from Intel.

0.948

0.456

0.00

0.168

0.00

0.570

2.504

1.838

1.175

0.366(2) 0.240

3.179

5.532

4.165

5.997

7.274

7.429

1.752

1.197

0.447

0.143

8.853

Figure 3. Back Panel I/O Shield Dimensions

OM07107

KU440EX Motherboard Technical Product Specification

1.6 Microprocessor

The motherboard supports a single Pentium II or Celeron processor. The processor’s VID pins automatically program the voltage regulator on the motherboard to the required processor voltage. In addition, the 66 MHz host bus speed is automatically selected.

The motherboard will support either the low cost cartridge retention mechanism (LC-RM) or the retention mechanism specifically designed for the Celeron processor (C-RM).

NOTE

✏

The motherboard has 0.159” mounting holes to accommodate the new plastic studs. The older style studs are too small and can not be used.

The motherboard supports the following processor configurations:

Processor Type Processor Speed Host Bus Speed Retention Module

Pentium II 233 MHz

266 MHz 300 MHz 333 MHz

Celeron 266 MHz 66 MHz C-RM

66 MHz LC-RM

1.6.1 Microprocessor Packaging

The Pentium II processor is packaged in a Single Edge Contact (S.E.C.) cartridge. The cartridge includes the processor core, second-level cache subsystem, thermal plate, and back cover.

The Celeron processor is packaged in a Single Edge Processor (S.E.P.) package that includes the processor core only.

The processor connects to the motherboard through the Slot 1 connector, a 242-pin edge connector. When mounted in Slot 1, the processor is secured by a retention mechanism attached to the motherboard. A passive heatsink is stabilized by the heatsink support.

1.6.2 Second Level Cache

The Pentium II second-level cache is located on the substrate of the S.E.C. cartridge. The cache includes 512 KB of burst pipelined synchronous static RAM (BSRAM) and tag RAM. All supported onboard memory can be cached.

The Celeron processor does not have second level cache.

1.6.3 Microprocessor Upgrades

The motherboard can be upgraded with future steppings of the Pentium II or Celeron processor that run at higher speeds. When upgrading the processor, use the BIOS configure mode to change the processor speed (see Section 1.18).

Motherboard Description

1.7 Main Memory

The motherboard has two dual inline memory module (DIMM) sockets. Synchronous DRAM (SDRAM) can be installed in one or both sockets. In addition, the motherboard supports both serial presence detect (SPD) and non-SPD data structures.

Using the SPD data structure, programmed into an E determine the SDRAM's size and speed. Using the non-SPD data structure, the BIOS will dynamically determine SDRAM size and speed. Minimum memory size is 8 MB; maximum memory size is 256 MB. Memory size and speed can vary between sockets.

The motherboard supports the following memory features:

• 168-pin DIMMs with gold-plated contacts

• 66 MHz unbuffered SDRAM

• Non-ECC (64-bit) memory

• 3.3 V memory only

• Single- or double-sided DIMMs in the following sizes:

DIMM Size Non-ECC Configuration

8 MB 1 Mbit x 64 16 MB 2 Mbit x 64 32 MB 4 Mbit x 64 64 MB 8 Mbit x 64

PROM on the DIMM, the BIOS can

128 MB 16 Mbit x 64

NOTE

✏

All memory components and DIMMs used with the KU440EX motherboard must comply with the PC Unbuffered DIMM Specification. You can access this document through the Internet at: http://www.intel.com/design/pcisets/memory/.

See Section 6.2 for information about this specification.

1.8 Chipset

The Intel 440EX AGPset includes a Host-PCI bridge integrated with both an optimized DRAM controller and an Accelerated Graphics Port (A.G.P.) interface. The I/O subsystem of the 440EX is based on the PIIX4E, which is a highly integrated PCI-ISA/IDE Accelerator Bridge. This chipset consists of the Intel 82443EX PCI/A.G.P. controller (PAC) and the Intel 82371EB PCI/ISA IDE Xccelerator (PIIX4E) bridge chip.

KU440EX Motherboard Technical Product Specification

1.8.1 Intel 82443EX PCI/A.G.P. Controller (PAC)

The PAC provides bus-control signals, address paths, and data paths for transfers between the processor’s host bus, the PCI bus, the A.G.P., and main memory. The PAC features:

• Processor interface control  Support for processor host bus frequencies of 66 MHz  32-bit addressing  Desktop Optimized GTL+ compliant host bus interface

• Integrated DRAM controller, with support for:  +3.3 V only DIMM DRAM configurations  Up to two double sided DIMMs  Synchronous 66-MHz SDRAM  DIMM serial presence detect via the SMBus interface  16- and 64-Mbit devices with 2 K, 4 K, and 8 K page sizes

4, x 8, x 16, and x 32 DRAM widths



 SDRAM 64-bit data interface  Symmetrical and asymmetrical DRAM addressing

• A.G.P. interface  Complies with the A.G.P. specification Rev 1.0 (see Section 6.2 for specification

information)

 Support for +3.3 V PCI devices, A.G.P.-66/133 devices  Synchronous coupling to the host-bus frequency

• PCI bus interface  Complies with the PCI specification Rev 2.1, +5 V 33 MHz interface (see Section 6.2 for

specification information)

 Asynchronous coupling to the host-bus frequency  PCI parity generation support  Data streaming support for PCI-to-DRAM  Support for three PCI bus masters in addition to the host and PCI-to-ISA I/O bridge  Support for concurrent host, A.G.P., and PCI transactions to main memory

• Data buffering  DRAM write buffer with read-around-write capability  Dedicated host-to-DRAM, PCI0-to-DRAM, and PCI1/A.G.P.-to-DRAM read buffers  A.G.P. dedicated inbound/outbound FIFOs (133/66 MHz), used for temporary data storage

• Power management functions  Support for system suspend/resume  Compliant with ACPI power management

• SMBus support for desktop management functions

• Support for system management mode (SMM)

1.8.2 Intel 82371EB PCI ISA IDE Xcelerator (PIIX4E)

The PIIX4E is a multifunction PCI device implementing the PCI-to-ISA bridge, PCI IDE functionality, Universal Serial Bus (USB) host/hub functionality, and enhanced power management. The PIIX4E features:

• Multifunction PCI-to-ISA bridge  Support for the PCI bus at 33 MHz  Complies with the PCI specification (see Section 6.2 for specification information)  Full ISA bus support

• USB controller  Two USB ports (see Section 6.2 for specification information)  Support for legacy keyboard and mouse  Support for the Universal Host Controller Interface (UHCI) Design Guide, revision 1.1,

interface

• Integrated dual-channel enhanced IDE interface  Support for up to four IDE devices  PIO Mode 4 transfers up to 16 MB/sec  Support for Ultra DMA/33 synchronous DMA mode transfers up to 33 MB/sec  Bus master mode with an 8 x 32-bit buffer for bus master PCI IDE burst transfers

• Enhanced DMA controller  Two 8237-based DMA controllers  Support for PCI DMA with three PC/PCI channels and distributed DMA protocols

• Interrupt controller based on 82C59  Support for 15 interrupts  Programmable for edge/level sensitivity

• Power management logic  Sleep/resume logic

†

 Support for Wake on LAN  Support for ACPI (see Section 6.2 for specification information)

• Real-Time Clock  256-byte battery-backed CMOS SRAM  Includes date alarm

• 16-bit counters/timers based on 82C54

technology

Motherboard Description

1.8.2.1 Universal Serial Bus (USB)

The motherboard has two USB ports; one USB peripheral can be connected to each port. For more than two USB devices, an external hub can be connected to either port. The motherboard fully supports the universal host controller interface (UHCI) and uses UHCI-compatible software drivers. See Section 6.2 for information about the USB specification. USB features include:

• Self-identifying peripherals that can be plugged in while the computer is running

• Automatic mapping of function to driver and configuration

• Support for isochronous and asynchronous transfer types over the same set of wires

• Support for up to 127 physical devices

KU440EX Motherboard Technical Product Specification

• Guaranteed bandwidth and low latencies appropriate for telephony, audio, and other applications

• Error-handling and fault-recovery mechanisms built into the protocol

NOTE

✏

Computer systems that have an unshielded cable attached to a USB port may not meet FCC Class B requirements, even if no device or a low-speed USB device is attached to the cable. Use shielded cable that meets the requirements for full-speed devices.

1.8.2.2 IDE Support

The motherboard has two independent bus-mastering PCI IDE interfaces. These interfaces support PIO Mode 3, PIO Mode 4, ATAPI devices (such as CD-ROM), and Ultra DMA/33 synchronousDMA mode transfers. The BIOS supports logical block addressing (LBA) and extended cylinder head sector (ECHS) translation modes. The BIOS automatically detects the IDE device transfer rate and translation mode.

Programmed I/O operations usually require a substantial amount of processor bandwidth. However, in multitasking operating systems, the bandwidth freed by bus mastering IDE can be devoted to other tasks while disk transfers are occurring.

1.8.2.3 Real-Time Clock, CMOS SRAM, and Battery

The real-time clock is compatible with DS1287 and MC146818 components. The clock provides a time-of-day clock and a multicentury calendar with alarm features and century rollover. The realtime clock supports 256 bytes of battery-backed CMOS SRAM in two banks that are reserved for BIOS use.

The time, date, and CMOS values can be specified in the Setup program. The CMOS values can be returned to their defaults by using the Setup program.

Motherboard Description

NOTE

✏

The recommended method of accessing the date in systems with Intel motherboards is indirectly from the Real Time Clock (RTC) via the BIOS. The BIOS on Intel motherboards and baseboards contains a century checking and maintenance feature that checks the least two significant digits of the year stored in the RTC during each BIOS request (INT 1Ah) to read the date and, if less than 80 (i.e., 1980 is the first year supported by the PC), updates the century byte to 20. This feature enables operating systems and applications using the BIOS date/time services to reliably manipulate the year as a four-digit value.

For more information on proper date access in systems with Intel motherboards please see

http://support.intel.com/support/year2000/motherboard.htm A coin-cell battery powers the real-time clock and CMOS memory. When the computer is not

plugged into a wall socket, the battery has an estimated life of three years. When the computer is plugged in, the 3.3 V standby current from the power supply extends the life of the battery. The clock is accurate to ± 13 minutes/year at 25 ºC with 3.3 V applied.

1.9 I/O Interface Controller

The motherboard uses the SMC FDC37M707QFP I/O controller which features:

• Single diskette drive interface

• ISA Plug-and-Play compatible register set

• Two serial ports

• FIFO support on both serial and floppy interfaces

• One parallel port with ECP and EPP support

†

• PS/2

• PCI PME interface to PIIX4E

• Intelligent auto power management, including:

The Setup program provides configuration options for the I/O controller.

1.9.1 Serial Ports

The motherboard has two serial ports. COM1 is a 9-pin D-Sub serial port connector located on the back panel, and COM2 is a header located at J5J1. Both serial ports have NS16C550-compatible UARTs that support data transfers at speeds up to 115.2 Kbits/sec with BIOS support.

style mouse and keyboard interfaces

 Shadowed write-only registers for ACPI compliance  Programmable wake-up event interface  Wake on Modem support is available on the riser  Support for Wake on Ring through an external modem connected to COM1

‡

KU440EX Motherboard Technical Product Specification

1.9.2 Infrared Support

There is no infrared header on the motherboard; however, the edge connector does accommodate

†

infrared signals from the riser. If an IrDA

connector is available on the riser, use the BIOS Peripheral Configuration Submenu to change the mode for Serial Port B from COM2 to infrared applications. You will no longer be able to use Serial Port B.

1.9.3 Parallel Port

The connector for the multimode bi-directional parallel port is a 25-pin D-Sub connector located on the back panel of the motherboard. In the Setup program, there are four options for parallel port operation:

• Output only (standard mode)

• Bi-directional (PS/2 compatible)

• Bi-directional Enhanced Parallel Port (EPP). A driver from the peripheral manufacturer is

required for operation. See Section 6.2 for EPP compatibility

• Bi-directional high-speed Extended Capabilities Port (ECP)

1.9.4 Diskette Drive Controller

The I/O controller is software compatible with the 82077 diskette drive controller and supports a

†

single diskette drive in either PC-AT interface can be configured for the following diskette drive capacities and sizes:

• 360 KB, 5.25-inch

• 1.2 MB, 5.25-inch

• 720 KB, 3.5-inch

• 1.2 MB, 3.5-inch (driver required)

• 1.25/1.44 MB, 3.5-inch

• 2.88 MB, 3.5-inch

and PS/2 modes. In the Setup program, the diskette drive

Motherboard Description

1.9.5 PS/2 Keyboard and Mouse Interface

PS/2 keyboard and mouse connectors are located on the back panel of the motherboard. The +5 V

†

lines to these connectors are protected with a PolySwitch reestablishes the connection after an over-current condition is removed.

NOTE

✏

The mouse and keyboard can be plugged into either PS/2 connector. Power to the computer should be turned off before a keyboard or mouse is connected or disconnected.

The keyboard controller contains code which provides the traditional keyboard and mouse control functions and also supports Power On/Reset password protection. A Power On/Reset password can be specified in the BIOS Setup program.

The keyboard controller also supports the hot-key sequence <Ctrl><Alt><Del>, software reset. This key sequence resets the computer’s software by jumping to the beginning of the BIOS code and running the Power On Self Test (POST).

circuit that, like a self-healing fuse,

1.10 Audio Subsystem

The audio subsystem consists of the following:

• Crystal Semiconductor CS4235 audio codec

• Back panel and onboard audio connectors

1.10.1 Crystal Semiconductor CS4235 Audio Codec

The CS4235 audio codec’s features include:

†

• Compatibility with Roland MPU-401, Sound Blaster

Sound System

• Advanced MPC3-compliant input and output mixer

1.10.2 Audio Connectors

The audio connectors include the following:

• Back panel connectors: stereo line-level output (Line-out) and Mic-in

• CD-ROM (2 mm) audio header

1.10.3 Audio Drivers and Utilities

Audio software and utilities are available from Intel’s World Wide Web site (see Section 6.1). Audio driver support is provided for Microsoft Windows

†

Microsoft Windows NT

operating systems.

, Sound Blaster Pro†, and Windows

†

3.1, Microsoft Windows 95, and

Audio software and utilities are available from Intel’s World Wide Web site (see Section 6.1).

KU440EX Motherboard Technical Product Specification

1.11 Graphics Subsystem

The graphics subsystem features the ATI Rage IIC graphics controller. See Intel’s World Wide Web site (see Section 6.1) for graphics drivers.

1.11.1 ATI Rage IIC Controller

The ATI Rage IIC provides the following features:

• A.G.P. support

• Full bus mastering support

• Triple 8-bit palette DAC with gamma correction. Pixel rates up to 230 MHz

• Supports DDC1 and DDC2B+ for Plug and Play monitors

†

• Game acceleration including support for Microsoft’s DirectDraw

sprites, transparent blit, masked blit, and context chaining

†

• Direct3D

• 2/4 MB of 83 MHz SGRAM on the motherboard

texture lighting

1.11.2 ATI Rage Pro 1X AGP (Optional)

: double buffering, virtual

The ATI Rage Pro 1X AGP supports motion video acceleration.

• Multistream video for video conferencing

• Filtered horizontal/vertical, up/down scaling enhances playback quality

• Enhanced line buffer allows vertical filtering of native MPEG-2 size (720 x 480) images

• DVD/MPEG-2 decode assist

• Filter circuitry that eliminates video artifacts caused by displaying interlaced video on

noninterlaced displays

• Hardware mirroring for flipping video images in video conferencing systems

• Bi-directional bus mastering engine with planar YUV-to-packed format converter

• YUV-to-RGB color space converter with support for both packed and planar YUV:

 YUV 4:2:2, YUV 4:1:0, and YUV 4:2:0  RGB 32, RGB 16/15, RGB 8, and monochrome

1.12 LAN Subsystem

The Intel® EtherExpress PRO/100 Wired for Management (WfM) PCI LAN subsystem is an

†

Ethernet include:

• 32-bit direct bus mastering on the PCI bus

• Shared memory structure in the host memory that copies data directly to/from host memory

• 10Base-T and 100Base-TX capability using a single RJ-45 connector with connection and

• IEEE 802.3µ Auto-Negotiation for the fastest available connection

• Jumperless configuration; the LAN subsystem is completely software configurable

LAN interface that provides both 10Base-T and 100Base-TX connectivity. Features

activity status LEDs

Motherboard Description

1.12.1 Intel® 82558 LAN Controller

The Intel® 82558 LAN Controller provides the following functions:

• CSMA/CD Protocol Engine

• PCI bus interface (Rev 2.1 compliant)

• DMA engine for movement of commands, status, and network data across the PCI bus

• Integrated physical layer interface, including:

 Complete functionality necessary for the 10Base-T and 100Base-TX interfaces; when in

10 Mbit/sec mode, the interface drives the cable directly

 A complete set of MII management registers for control and status reporting  802.3µ Auto-Negotiation for automatically establishing the best operating mode when

connected to other 10Base-T or 100Base-TX devices

• Integrated power management features, including:

 Support for ACPI  Support for Wake on LAN technology

• Digitally controlled adaptive equalizations and transmission

1.13 Wake on LAN Technology

Wake on LAN technology enables remote wakeup of the computer through a network. Wake on LAN technology requires a PCI add-in network interface card (NIC) with remote wakeup capabilities. The remote wakeup connector on the NIC must be connected to the onboard Wake on LAN technology connector. The NIC monitors network traffic at the Media Independent Interface

†

(MII); upon detecting a Magic Packet computer.

This feature is available on the riser. See Section 1.17 for the location and pinouts of the NLX edge connector.

CAUTION

For Wake on LAN, the +5 V standby line for the power supply must be capable of delivering +5 V Wake on LAN, can damage the power supply.

5% at 720 mA. Failure to provide adequate standby current when implementing

, the NIC asserts a wakeup signal that powers up the

KU440EX Motherboard Technical Product Specification

1.14 Hardware Monitor Subsystem

The hardware monitor subsystem provides low-cost instrumentation capabilities. The features of the hardware monitor subsystem include:

• Support for an optional chassis intrusion connector

• An integrated ambient temperature sensor

• Fan speed sensors (see Figure 4 for the location of fan connector on the motherboard)

• Power supply voltage monitoring to detect levels above or below acceptable values

When suggested ratings for temperature, fan speed, or voltage are exceeded, an interrupt is activated. The hardware monitor component connects to the SMBus.

‡

1.15 Fan Speed Control

The motherboard includes two independent circuits for controlling various system cooling fans: one on the motherboard and the other on the riser.

1.15.1 Fan Header

The processor fan header (J1A1) on the motherboard is intended to drive a processor-mounted fan either full-speed or off, depending on the operating state of the system.

1.15.2 Fan Control Signal on the Riser

The fan control (FAN_CTL) signal is defined by the NLX specification as a means to control the speeds of fans connected to an NLX riser or power supply. The KU440EX motherboard is capable of driving FAN_CTL at different output levels, depending on the operating state of the system. Initially, two levels are defined for high and low fan speed operation. Based on the cooling needs and capabilities of a given system platform, the system OEM can redefine these output levels (by means of the SMBIOS table entries) to achieve a better balance of acoustic and thermal performance.

Motherboard Description

1.15.3 System Management Support

While the system is running an APM OS, the BIOS controls both fan circuits as shown in Table 1. With an ACPI OS, the voltage to both circuits is dependent on the system state, as shown in Table 2.

Table 1. Fan Speed Control under APM OS

APM system states Processor fan voltage FAN_CTL signal to riser

Full on APM Enabled/Standby +12 V (default) OEM-definable “High speed”

(default = +12 V)

APM Suspend off 0 V (default) OEM-definable “Low speed”

(default = 8 V)

Table 2. Fan Speed Control under ACPI OS

ACPI System States Processor Fan Voltage FAN_CTL Signal to Riser

S0 +12V +12 V S1 OS Control ACPI software/Operating System S2 No support No support S3 No support No support S4 Future Upgrade (+0 V) (+0 V)

S5 0 V +0 V

KU440EX Motherboard Technical Product Specification

1.16 Motherboard Connectors

Figure 4 shows the location of the motherboard connectors.

J5J1

J8J1

1 3

J8K2

3 1

J1A1

OM07104

A COM2 header E NLX edge connector B Microphone routing jumper F Slot 1 connector C NLX edge connector (supplemental) G Processor fan connector D CD-ROM audio connector (2mm) H DIMM sockets

Figure 4. Motherboard Connectors

Table 3. Serial Port B Header (J5J1)

Pin Signal Name

1 DCD 2 DSR 3 Serial In# 4 RTS 5 Serial Out# 6 CTS 7 DTR 8 RI (Ring in) 9 Ground

10 Key

Table 4. Microphone Routing Jumper

(J8K2)

Motherboard Description

Settings Configuration

1-2 Front panel Mic In 2-3 Motherboard Mic In

Table 5. CD Audio (J8J1)

Pin Signal Name

1 CD_Left 2 Ground 3 Ground 4 CD_Right

Table 6. Fan Connector (J1A1)

Pin Signal Name

1 Ground 2 12 V/0 V 3 FAN_SEN

KU440EX Motherboard Technical Product Specification

1.16.1 Power Supply Connector

‡

When used with an NLX-compliant power supply that supports remote power on/off, the motherboard can turn off the system power through software control. See Section 6.2 for information about the NLX specification.

To enable soft-off control in software, advanced power management must be enabled in the Setup program and in the operating system. When the system BIOS receives the correct APM command from the operating system, the BIOS turns off power to the computer.

With soft-off enabled, if power to the computer is interrupted by a power outage or a disconnected power cord, when power resumes, the computer returns to the power state it was in before power was interrupted (on or off).

Table 7. Power Supply Connector

Pin Signal Name

1 +3.3 V 2 +3.3 V 3 Ground 4 +5 V 5 Ground 6 +5 V 7 Ground 8 PWRGD (Power Good) 9 +5 V (STANDBY) 10 +12 V 11 +3.3 V 12 -12 V 13 Ground 14 PS-ON# (power supply remote

on/off control) 15 Ground 16 Ground 17 Ground 18 -5 V 19 +5 V 20 +5 V

1.16.2 Back Panel Connectors

Figure 5 shows the location of the back panel I/O connectors, which include:

• External audio jacks: Mic In and Line Out

• Two USB connectors (stacked)

• PS/2-keyboard and mouse connectors

• RJ-45 LAN connector

• One serial port

• One video port

• One parallel port

Motherboard Description

EF J

A Mic In F PS/2 Keyboard/Mouse B Line Out G RJ-45 LAN C USB Port 1 H Serial Port A D USB Port 0 I Parallel Port E PS/2 Keyboard/Mouse J Video

Figure 5. Back Panel I/O Connectors

G H

OM07142

KU440EX Motherboard Technical Product Specification

Table 8. Audio Mic In Connector (J8K1)

Pin Signal Name

Sleeve Ground Tip Mono In Ring Electret Bias Voltage

Table 9. Audio Line Out Connector (J7K1)

Pin Signal Name

Sleeve Ground Tip Audio Left Out Ring Audio Right Out

Table 10. Stacked USB Connectors (J6K2)

Pin Signal Name

1 +5 V (fused) 2 USBP0# [USBP1#] 3 USBP0 [USBP1] 4 Ground

Signal names in brackets ([ ]) are for USB Port 1.

Table 11. PS/2 Keyboard/Mouse Connectors

(J5K1, J6K1)

Pin Signal Name

1 Data 2 No connect 3 Ground 4 +5 V (fused) 5 Clock 6 No connect

Table 12. RJ-45 LAN Connector (J4K1)

Pin Signal Name

1 Tx+ 2 Tx3 Rx+ 4 GND 5 GND 6 Rx7 GND 8 GND

Table 13. Serial Port A Connector (J3K1)

Pin Signal Name

1 DCD 2 Serial In# 3 Serial Out# 4 DTR# 5 Ground 6 DSR 7 RTS 8 CTS

9RI

Motherboard Description

Table 14. Video Connector (J1K1)

Pin Signal Name

1 RED 2 GREEN 3 BLUE 4 AC GROUND 5 Ground 6 Ground 7 Ground 8 Ground 9 Fused VCC 10 Ground 11 AC GROUND 12 MONID1 13 HSYNC 14 VSYNC

15 MONID2

KU440EX Motherboard Technical Product Specification

Table 15. Parallel Port Connector (J2K1)

Pin Signal Name Pin Signal Name

1 Strobe# 14 Auto Feed# 2 Data bit 0 15 Fault# 3 Data bit 1 16 INIT# 4 Data bit 2 17 SLCT IN# 5 Data bit 3 18 Ground 6 Data bit 4 19 Ground 7 Data bit 5 20 Ground 8 Data bit 6 21 Ground 9 Data bit 7 22 Ground 10 ACK# 23 Ground 11 Busy 24 Ground 12 Error 25 Ground 13 Select

Motherboard Description

1.17 NLX Card Edge Connector

The NLX riser connector on the motherboard consists of a 340 (2 x 170) position and a supplemental 26 (2 x 13) position gold finger contact. All edge connector pin definitions are defined in the NLX specification, version 1.2.

According to the NLX specification, the motherboard edge connector provides the following:

• PCI signals (the motherboard supports up to four PCI devices)

• ISA signals

• Two IDE channels

• One diskette drive interface

• Infrared signals

• Miscellaneous front panel signals

• Power connection for the motherboard

See Section 6.2 for information about the NLX Specification. Table 16, Table 17, and Table 18 specify the pinouts located on the primary connector; Table 19

specifies the pinouts located on the supplemental connector.

Table 16. PCI Segment, Riser Interconnect

Pin Signal Name Type I/O Termination Pin Signal Name Type I/O Termination

A1 -12V PWR NA NA B1 PCSPKR_RT AUDIO O NA A2 REQ4# PCI I RIS B2 +12V PWR NA NA A3 +12V PWR NA NA B3 PCSPKR_LFT AUDIO O NA A4 GNT4# PCI O RIS B4 +12V PWR NA NA A5 3.3VDC PWR NA NA B5 PCICLK0 PCI O MB A6 PCIINT3# PCI I RIS B6 GND PWR NA NA A7 3.3VDC PWR NA NA B7 PCICLK1 PCI O MB A8 PCIINT0# PCI I RIS B8 SER_IRQ MISC I/O MB A9 PCIINT1# PCI I RIS B9 PCIINT2# PCI I RIS A10 PCICLK2 PCI O MB B10 3.3VDC PWR NA NA A11 3.3VDC PWR NA NA B11 PCICLK3 PCI O MB A12 PCI_RST# PCI O MB B12 GND PWR NA NA A13 GNT0# PCI O RIS B13 GNT3# PCI O RIS A14 PCICLK4 PCI O MB B14 3.3VDC PWR NA NA A15 GND PWR NA NA B15 GNT2# PCI O RIS A16 GNT1# PCI O RIS B16 AD[31] PCI I/O RIS A17 3.3VDC PWR NA NA B17 REQ0# PCI I RIS

continued

KU440EX Motherboard Technical Product Specification

Table 16. PCI Segment, Riser Interconnect

Pin Signal Name Type I/O Termination Pin Signal Name Type I/O Termination

A18 REQ2# PCI I RIS B18 GND PWR NA NA A19 REQ3# PCI I RIS B19 AD[29] PCI I/O RIS A20 AD[30] PCI I/O RIS B20 AD[28] PCI I/O RIS A21 GND PWR NA NA B21 AD[26] PCI I/O RIS A22 AD[25] PCI I/O RIS B22 3.3VDC PWR NA NA A23 REQ1# PCI I RIS B23 AD[24] PCI I/O RIS A24 AD[27] PCI I/O RIS B24 C/BE[3]# PCI I/O RIS A25 3.3VDC PWR NA NA B25 AD[22] PCI I/O RIS A26 AD[23] PCI I/O RIS B26 GND PWR NA NA A27 AD[20] PCI I/O RIS B27 AD[21] PCI I/O RIS A28 AD[18] PCI I/O RIS B28 AD[19] PCI I/O RIS A29 GND PWR NA NA B29 AD[16] PCI I/O RIS A30 AD[17] PCI I/O RIS B30 3.3VDC PWR NA NA A31 IRDY# PCI I/O RIS B31 C/BE[2]# PCI I/O RIS A32 DEVSEL# PCI I/O RIS B32 FRAME# PCI I/O RIS A33 3.3VDC PWR NA NA B33 TRDY# PCI I/O RIS A34 STOP# PCI I/O RIS B34 GND PWR NA NA A35 PERR# PCI I/O RIS B35 SDONE PCI I/O RIS A36 SERR# PCI I/O RIS B36 LOCK# PCI I/O RIS A37 GND PWR NA NA B37 SBO# PCI I/O RIS A38 C/BE[1]# PCI I/O RIS B38 3.3VDC PWR NA NA A39 AD[13] PCI` I/O RIS B39 AD[15] PCI I/O RIS A40 AD[10] PCI I/O RIS B40 PAR PCI I/O RIS A41 GND PWR NA NA B41 AD[14] PCI I/O RIS A42 C/BE[0]# PCI I/O RIS B42 GND PWR NA NA A43 AD[00] PCI I/O RIS B43 AD[11] PCI I/O RIS A44 AD[06] PCI I/O RIS B44 AD[12] PCI I/O RIS A45 3.3VDC PWR NA NA B45 AD[09] PCI I/O RIS A46 AD[05] PCI I/O RIS B46 3.3VDC PWR NA NA A47 AD[01] PCI I/O RIS B47 AD[08] PCI I/O RIS A48 AD[03] PCI I/O RIS B48 AD[07] PCI I/O RIS A49 GND PWR NA NA B49 AD[04] PCI I/O RIS A50 AD[02] PCI I/O RIS B50 GND PWR NA NA A51 5VDC PWR NA NA B51 PCI_PM# PCI I/O MB

I/O Column Definitions Relative to Motherboard

O = Output from motherboard to riser I = Input from riser to motherboard

Termination Column Definitions:

MB = Termination/Pullup/Pulldown/debounce is on motherboard RIS = Termination/Pullup/Pulldown is on riser card

N/A = Not on motherboard or riser

(continued)

Motherboard Description

Table 17. ISA Segment, Riser Interconnect

Pin Signal Name Type I/O Termination Pin Signal Name Type I/O Termination

A52 RSTDRV ISA O MB B52 5VDC PWR NA NA A53 IOCHK# ISA I MB B53 IRQ9 ISA O MB A54 SD[6] ISA I/O MB B54 DRQ2 ISA I MB A55 SD[7] ISA I/O MB B55 SD[3] ISA I/O MB A56 SD[4] ISA I/O MB B56 0WS# ISA I MB A57 5VDC PWR NA NA B57 SD[1] ISA I/O MB A58 SD[2] ISA I/O MB B58 AEN ISA O MB A59 SD[5] ISA I/O MB B59 IOCHRDY ISA I MB A60 SD[0] ISA I/O MB B60 SA[18] ISA I/O MB A61 SMEMW# ISA O MB B61 SMEMR# ISA O MB A62 SA[19] ISA I/O MB B62 SA[16] ISA I/O MB A63 IOW# ISA I/O MB B63 IOR# ISA I/O MB A64 SA[17] ISA I/O MB B64 DRQ3 ISA I MB A65 GND PWR NA NA B65 SA[15] ISA I/O MB A66 DACK#3 ISA O MB B66 GND PWR NA NA A67 SA[14] ISA I/O MB B67 SA[13] ISA I/O MB A68 DACK1# ISA O MB B68 5VDC PWR NA NA A69 DRQ1 ISA I MB B69 REFRESH# ISA I/O MB A70 SA[12] ISA I/O MB B70 SA[11] ISA I/O MB A71 SYSCLK ISA O MB B71 SA[10] ISA I/O MB A72 SA[9] ISA I/O MB B72 IRQ7 ISA I MB A73 5VDC PWR NA NA B73 IRQ6 ISA I MB A74 IRQ5 ISA I MB B74 SA[8] ISA I/O MB A75 SA[7] ISA I/O MB B75 SA[6] ISA I/O MB A76 IRQ3 ISA I MB B76 DACK2# ISA O MB A77 IRQ4 ISA I MB B77 SA[4] ISA I/O MB A78 SA[5] ISA I/O MB B78 GND PWR NA NA A79 TC ISA O MB B79 SA[3] ISA I/O MB A80 BALE ISA O MB B80 SA[2] ISA I/O MB A81 GND PWR NA NA B81 SA[1] ISA I/O MB A82 OSC ISA O MB B82 SA[0] ISA I/O MB A83 IOCS16# ISA I MB B83 SBHE# ISA I/O MB

A84 MEMCS16# ISA I MB B84 LA[23] ISA I/O MB A85 IRQ11 ISA I MB B85 LA[22] ISA I/O MB A86 IRQ10 ISA I MB B86 LA[21] ISA I/O MB

continued

KU440EX Motherboard Technical Product Specification

Table 17. ISA Segment, Riser Interconnect

Pin Signal Name Type I/O Termination Pin Signal Name Type I/O Termination

A87 IRQ15 ISA I MB B87 LA[20] ISA I/O MB A88 IRQ12 ISA I MB B88 LA[19] ISA I/O MB A89 GND PWR NA NA B89 LA[18] ISA I/O MB A90 IRQ14 ISA I MB B90 LA[17] ISA I/O MB A91 DRQ0 ISA I MB B91 DACK0# ISA O MB A92 MEMR# ISA I/O MB B92 DACK5# ISA O MB A93 MEMW# ISA I/O MB B93 SD[8] ISA I/O MB A94 SD[9] ISA I/O MB B94 DACK6# ISA O MB A95 DRQ5 ISA I MB B95 SD[10] ISA I/O MB A96 DRQ6 ISA I MB B96 5VDC PWR NA NA A97 5VDC PWR NA NA B97 SD[11] ISA I/O MB A98 SD[12] ISA I/O MB B98 DRQ7 ISA I MB A99 DACK7# ISA O MB B99 SD[13] ISA I/O MB A100 SD[14] ISA I/O MB B100 SD[15] ISA I/O MB A101 MASTER# ISA I MB B101 GND PWR NA NA

I/O Column Definitions Relative to Motherboard

O = Output from motherboard to riser I = Input from riser to motherboard

Termination Column Definitions:

MB = Termination/Pullup/Pulldown/debounce is on motherboard RIS = Termination/Pullup/Pulldown is on riser card

N/A = Not on motherboard or riser

(continued)

Table 18. IDE, Floppy, and Front Panel Section, Riser Interconnect

Pin Signal Name Type I/O Termination Pin Signal Name Type I/O Termination

A102 IDEA_DD8 IDE I/O MB B102 GND PWR NA NA A103 IDEA_RESET# IDE O MB B103 IDEA_DD7 IDE I/O MB A104 IDEA_DD9 IDE I/O MB B104 IDEA_DD6 IDE I/O MB A105 5VDC PWR NA NA B105 IDEA_DD5 IDE I/O MB A106 IDEA_DD4 IDE I/O MB B106 IDEA_DD11 IDE I/O MB A107 IDEA_DD10 IDE I/O MB B107 IDEA_DD12 IDE I/O MB A108 IDEA_DD3 IDE I/O MB B108 GND PWR NA NA A109 IDEA_DD13 IDE I/O MB B109 IDEA_DD14 IDE I/O MB A110 IDEA_DD1 IDE I/O MB B110 IDEA_DD2 IDE I/O MB A111 GND PWR NA NA B111 IDEA_DD0 IDE I/O MB A112 IDEA_DIOW# IDE O MB B112 IDEA_DD15 IDE I/O MB

A113 IDEA_DMARQ IDE I MB B113 IDEA_DIOR# IDE O MB

continued

Motherboard Description

Table 18. IDE, Floppy, and Front Panel Section, Riser Interconnect

Pin Signal Name Type I/O Termination Pin Signal Name Type I/O Termination

A114 IDEA_IORDY IDE I MB B114 IDEA_CSEL IDE O MB A115 IDEA_DMACK# IDE O MB B115 IDEA_INTRQ IDE I MB A116 RESERVED RES NA NA B116 5VDC PWR NA NA A117 IDEA_DA2 IDE O MB B117 IDEA_DA1 IDE O MB A118 IDEA_CS0# IDE O MB B118 IDEA_DA0 IDE O MB A119 5VDC PWR NA NA B119 IDEA_CS1# IDE O MB A120 IDEA_DASP# IDE I RIS B120 IDEB_DD8 IDE I/O MB A121 IDEB_RESET# IDE O MB B121 IDEB_DD7 IDE I/O MB A122 IDEB_DD9 IDE I/O MB B122 GND PWR NA NA A123 IDEB_DD6 IDE I/O MB B123 IDEB_DD10 IDE I/O MB A124 IDEB_DD5 IDE I/O MB B124 5VDC PWR NA NA A125 IDEB_DD11 IDE I/O MB B125 IDEB_DD4 IDE I/O MB A126 IDEB_DD12 IDE I/O MB B126 IDEB_DD3 IDE I/O MB A127 GND PWR NA NA B127 IDEB_DD13 IDE I/O MB A128 IDEB_DD2 IDE I/O MB B128 IDEB_DD14 IDE I/O MB A129 IDEB_DD15 IDE I/O MB B129 IDEB_DD1 IDE I/O MB A130 IDEB_DIOW# IDE I/O MB B130 IDEB_DD0 IDE I/O MB A131 IDEB_DMARQ IDE I MB B131 IDEB_DIOR# IDE O MB A132 IDEB_IORDY IDE I MB B132 IDEB_CSEL IDE O MB A133 GND PWR NA NA B133 IDEB_INTRQ IDE I MB A134 IDEB_DMACK# IDE O MB B134 IDEB_DA1 IDE O MB A135 RESERVED RES NA NA B135 IDEB_DA2 IDE O MB A136 IDEB_DA0 IDE O MB B136 IDEB_CS1# IDE O MB A137 IDEB_CS0# IDE O MB B137 IDEB_DASP# IDE I RIS A138 DRV2# FLOPPY GND NA B138 GND PWR NA NA A139 5VDC PWR NA NA B139 DRATE0 FLOPPY O NA A140 RESERVED RES NA NA B140 FDS1# FLOPPY O NA A141 DENSEL FLOPPY O NA B141 FDS0# FLOPPY O NA A142 FDME0# FLOPPY O NA B142 DIR# FLOPPY O NA A143 INDX# FLOPPY I RIS B143 MSEN1 FLOPPY I NA

(continued)

A144 FDME1# FLOPPY O NA B144 GND PWR NA NA A145 GND PWR NA NA B145 WRDATA# FLOPPY O NA A146 WE# FLOPPY O NA B146 TRK0# FLOPPY I RIS A147 STEP# FLOPPY O NA B147 MSEN0 FLOPPY I NA A148 WP# FLOPPY I RIS B148 RDDATA# FLOPPY I RIS

continued

KU440EX Motherboard Technical Product Specification

Table 18. IDE, Floppy, and Front Panel Section, Riser Interconnect

Pin Signal Name Type I/O Termination Pin Signal Name Type I/O Termination

A149 HDSEL# FLOPPY O NA B149 DSKCHG# FLOPPY I RIS A150 SDA MISC I/O MB B150 GND PWR NA NA A151 SCL MISC O MB B151 IRSL0 MISC I/O NA A152 FAN_TACH1 MISC I NA B152 IRSL1 MISC I/O NA A153 FAN_TACH2 MISC I NA B153 IRSL2 MISC I/O NA A154 FAN_TACH3 MISC I NA B154 IRTX MISC I/O NA A155 FAN_CTL MISC I NA B155 IRRX MISC I/O RIS A156 5VDC PWR NA NA B156 FP_SLEEP MISC I MB A157 USB1/3_N MISC I/O RIS B157 FP_RST# MISC I MB A158 USB1/3_P MISC I/O RIS B158 GND PWR NA NA A159 USB1/3_OC# MISC I RIS B159 PWRLED# MISC O RIS A160 USB2/4_N MISC I/O RIS B160 PWOK PWR I NA A161 USB2/4_P MISC I/O RIS B161 A162 USB2/4_OC# MISC I RIS B162 PS_ON# PWR O NA A163 GND PWR NA NA B163 LAN_WAKE MISC I MB A164 VBAT MISC O RIS B164 LAN_ACTVY_

A165 TAMP_DET# MISC I MB B165 MDM_WAKE# MISC I MB A166 MSG_WAIT_

LED# A167 1394_GND PWR O NA B167 RESERVED RES NA NA A168 RESERVED RES NA NA B168 RESERVED RES NA NA A169 5V (standby) PWR I NA B169 RESERVED RES NA NA A170 3.3VSENSE PWR O NA B170 -5V PWR NA NA

MISC O RIS B166 1394_PWR PWR I NA

SOFT_ON/OFF#

LED#

(continued)

PWR I MB

MISC O NA

I/O Column Definitions Relative to Motherboard

O = Output from motherboard to riser I = Input from riser to motherboard

Termination Column Definitions:

MB = Termination/Pullup/Pulldown/debounce is on motherboard RIS = Termination/Pullup/Pulldown is on riser card

N/A = Not on motherboard or riser

Motherboard Description

Table 19. Signals, NLX Riser with Supplemental Connector

Pin Signal Name Type I/O * Description Signal Type

X1 CD_IN_LT AUDIO I CD-ROM Line-in left. Analog

1 V RMS

X2 AGND PWR NA Low pass filtered ground for audio circuitry on

the riser.

X3 MIC_IN AUDIO I Pre-amplified microphone input. Pre-amp

circuitry to reside on riser or in microphone.

X4 LINE_OUT_LT AUDIO O Analog Line-out left. Analog

X5 FP_SPKR_EN AUDIO I This signal indicates if headphones have

been plugged into the front panel LINE-OUT jack. The signal is connected to one of the wipers on the audio jack and is HIGH when the headphones are plugged into the front audio jack and LOW when they are not. The signal is pulled low through a pull-down on the motherboard (Typically 100K).

X6 VOL_DN# ** AUDIO I Connects to Volume Down switch on front

panel, appropriate pull-up resistor on motherboard. The motherboard provides

debounce protection and a pull-up resistor. X7 GND PWR NA Ground NA X8 SMI# ** SYS I System Management Interrupt that is an input

to the motherboard. X9 RESERVED RES NA Reserved NA X10 RESERVED RES NA Reserved NA X11 RESERVED RES NA Reserved NA X12 AGND PWR NA Low pass filtered ground for audio circuitry on

the riser. X13 MODEM_MIC AUDIO O Pre-amplified microphone mono output signal

from motherboard to telephony device.

CD_IN_RT AUDIO I CD-ROM Line-in right. Analog

CD_IN_GND PWR I Isolated CD-ROM ground. NA

AVCC PWR O Clean power from the motherboard to audio

circuitry on the NLX riser; could be an

isolated power source; 1.5 Ampere max.

Limitation because of the connector / gold

finger limitation. Y4 LINE_OUT_RT AUDIO O Analog Line-out right. Analog

Analog 1 V RMS

1 V RMS TTL

TTL

open drain

Analog 1 V RMS

1 V RMS

5-9 V DC

1 V RMS

continued

KU440EX Motherboard Technical Product Specification

Table 19. Signals, NLX Riser with Supplemental Connector

(continued)

Pin Signal Name Type I/O * Description Signal Type

Y5 FP_MIC_EN ** AUDIO I This signal indicates if a microphone has

TTL been plugged into the front panel MIC_IN jack. The signal is connected to a wiper on the MIC_IN jack and is LOW when the microphone is plugged in and HIGH when it is not. The signal is pulled LOW through a pull down on the motherboard (Typically 100K).

Y6 VOL_UP# ** AUDIO I Connects to Volume Up switch on front

TTL panel, appropriate pull-up resistor on motherboard. The motherboard provides debounce protection and a pull-up resistor.

Y7 AC_RST# ** AC’97 O AC’97 master H/W reset. TTL Y8 AC_SD_IN ** AC’97 I Serial, time division, multiplexed, AC’97 input

TTL stream to the motherboard from the codec on the riser (output from the codec).

Y9 GROUND PWR NA Digital (main motherboard) ground plane. NA Y10 AC_SD_OUT ** AC’97 O A84 MEMCS16# Y11 AC_SYNC ** AC’97 O A85 IRQ11 Y12 AC_BIT_CLK ** AC’97 I Y13 MODEM_SPKR AUDIO O Analog mono output signal from telephony

* I/O column: relative to motherboard

“O” = output, from motherboard to riser “I” = input, from riser to motherboard.

** These signals are not supported.

A86 IRQ10

Analog device to motherboard.

1 V RMS

Motherboard Description

1.18 Jumper Settings

The motherboard has a single, 3-pin configuration jumper block at location (J6C1). Figure 6 shows the location of the configuration jumper block. Table 20 describes the jumper settings for the three modes.

J6C1

OM07106

Figure 6. Location of the Configuration Jumper Block

Table 20. Configuration Jumper Settings

Function Jumper J6C1 Configuration

Normal 1-2 The BIOS uses current configuration information and passwords for booting. Configure 2-3 After the POST runs, Setup runs automatically. The maintenance menu is

displayed.

Recovery none The BIOS attempts to recover the BIOS configuration. A recovery diskette is

required.

CAUTION

Do not move the jumper with the power on. Always turn off the power and unplug the power cord from the computer before changing the jumper.

KU440EX Motherboard Technical Product Specification

1.19 Reliability

The mean time between failures (MTBF) prediction is calculated using component and subassembly random failure rates. The calculation is based on the Bellcore Reliability Prediction Procedure, TR-NWT-000332, Issue 4, September 1991. The MTBF prediction is for estimating repair rates and spare parts requirements.

MTBF data is calculated from predicted data @ 55 °C. The MTBF prediction for the motherboard is 136,338 hours.

1.20 Environmental Specifications

Table 21. Environmental Specifications

Parameter Specification Temperature

Nonoperating -40 °C to +70 °C Operating 0 °C to +55 °C

Shock

Unpackaged 50 G trapezoidal waveform

Velocity change of 170 inches/sec

Packaged Half sine 2 millisecond

Product Weight (lbs)

<20 36 167 21-40 30 152 41-80 24 136 81-100 18 118

Vibration

Unpackaged 5 Hz to 20 Hz : 0.01g² Hz sloping up to 0.02 g² Hz

20 Hz to 500 Hz : 0.02g² Hz (flat)

Packaged 10 Hz to 40 Hz : 0.015g² Hz (flat)

40 Hz to 500 Hz : 0.015g² Hz sloping down to 0.00015 g² Hz Humidity Non-operating 95% RH at 30° C non-condensing

Free Fall (inches) Velocity Change (inches/sec)

Motherboard Description

1.21 Power Consumption

Table 22 lists the power usage for a computer that contains a motherboard with a 266 MHz Celeron processor, 32 MB RAM, 0 KB cache, 3.5-inch floppy drive, 2.1 GB IDE hard drive, 16X IDE CD-ROM and integrated Rage IIC with 4 MB of video memory. This information is provided only as a guide for calculating approximate power usage with additional resources added.

Values for the Windows 95 desktop mode are measured at 65K colors and 75 Hz refresh rate. AC watts are measured with a typical 145 W supply, nominal input voltage and frequency, and with a true RMS wattmeter at the line input.

Table 22. Power Usage

DC (amps) at:

Mode AC (watts) +3.3 V +5 V +12 V -12 V +5 V SB

DOS prompt, APM disabled 49.0 1.78 A 2.92 A .444 A .032 A .38 A Windows 95 desktop, APM disabled 49.5 1.63 A 2.88 A .452 A .032 A .38 A Windows 95 desktop, APM enabled, in

System Management Mode (SMM)

35.6 2.176 A 2.488 A .302 A .032 A .38 A

For typical configurations, the motherboard is designed to operate with a 90 to 200 W power supply. A higher-wattage power supply should be used for heavily-loaded configurations. The power supply must comply with the following recommendations found in the indicated sections of the NLX form factor specification (see Section 6.2).

• The potential relation between 3.3VDC and +5VDC power rails

• The current capability of the +5V (standby) line

• All timing parameters

• All voltage tolerances

1.22 Thermal Considerations

Table 23 lists maximum component case temperatures for motherboard components that could be sensitive to thermal changes. Case temperatures could be affected by factors such as the operating temperature, current load, or operating frequency. Maximum case temperatures are important when considering proper airflow to cool the motherboard.

CAUTION

An ambient temperature that exceeds the board’s maximum operating temperature by 5 oC to 10 oC might cause components to exceed their maximum case temperature. For information about the maximum operating temperature, see the environmental specifications in Section 1.20.

KU440EX Motherboard Technical Product Specification

Table 23. Thermal Considerations for Components

Component Maximum Temperature Motherboard Location

Pentium II processor 233 MHz

266 MHz 300 MHz 333 MHz

Celeron processor 266 MHz 85

C (thermal plate)

72.3

C (thermal plate)

C (case) J3D1 (Slot 1 connector)

J3D1 (Slot 1 connector)

Figure 7 shows motherboard components that may be sensitive to thermal changes.

A Processor (in Slot 1 connector) B Intel 82443EX C Intel 82371EB

Figure 7. Thermally-Sensitive Components

B C

OM07102

Motherboard Description

Table 24 shows the DC power requirements for systems in either Sleep or Normal operating modes. Power consumption is independent of the operating system used and other variables.

Table 24. Processor Fan Voltage (J1A1)

Mode Voltage

Sleep 0 Normal 12

1.23 Regulatory Compliance

This motherboard complies with the following safety and EMC regulations when correctly installed in a compatible host system.

Table 25. Safety Regulations

Regulation Title

UL 1950 - CSA 950-95, 3rd edition, Dated 07-28-95

EN 60 950, 2nd Edition, 1992 (with Amendments 1, 2 & 3)

IEC 950, 2nd edition, 1991 (with Amendments 1, 2, 3, and 4)

EMKO-TSE (74-SEC) 207/94 Summary of Nordic deviations to EN 60 950. (Norway, Sweden,

The Standard for Safety of Information Technology Equipment including Electrical Business Equipment. (USA & Canada)

The Standard for Safety of Information Technology Equipment including Electrical Business Equipment. (European Union)

The Standard for Safety of Information Technology Equipment including Electrical Business Equipment. (International)

Denmark & Finland)

Table 26. EMC Regulations

Regulation Title

FCC Class B Title 47 of the Code of Federal Regulations, Parts 2 & 15, Subpart

B, pertaining to unintentional radiators. (USA)

CISPR 22, 2nd Edition, 1993 Limits and methods of measurement of Radio Interference

Characteristics of Information Technology Equipment. (International)

EN 55 022, 1995 Limits and methods of measurement of Radio Interference

Characteristics of Information Technology Equipment. (Europe)

EN 50 082-1 (1992) Generic Immunity Standard; Currently compliance is determined via

testing to IEC 801-2, -3, and -4. (Europe)

VCCI Class B (ITE) Implementation Regulations for Voluntary Control of Radio

Interference by Data Processing Equipment and Electronic Office Machines. (Japan)

ICES-003, Issue 2 Interference-Causing Equipment Standard, Digital Apparatus.

(Canada)

KU440EX Motherboard Technical Product Specification

This motherboard has the following product certification markings:

• European CE Marking: Consists of a marking on the board and shipping container.

• UL Recognition Mark: Consists of the UL File No. E139761 on the component side of the

board and the PB No. on the solder side of the board. Board material flammability is 94V-1 or -0.

• Each board will be marked with an FCC Declaration of Conformity.

• Canadian Compliance: Consists of small c followed by a stylized backward UR on component

side of the board.

2 Motherboard Resources

2.1 Memory Map

Table 27. Memory Map

Address Range (decimal) Address Range (hex) Size Description

1024 K - 292144 K 100000 - 10000000 256 MB Extended memory 896 K - 1024 K E8000 - FFFFF 96 KB System BIOS 800 K - 896 K C8000 - DFFFF 96 KB Available high DOS memory (open to ISA and

640 K - 800 K A0000 - C7FFF 160 KB Video memory and BIOS 0 K - 640 K 00000 - 9FFFF 640 KB Conventional memory

2.2 DMA Channels

Table 28. DMA Channels

PCI buses)

DMA Channel Number Data Width System Resource

0 8- or 16-bits Audio 1 8- or 16-bits Audio / parallel port 2 8- or 16-bits Floppy drive 3 8- or 16-bits Parallel port (for ECP)/audio 4 Reserved - cascade channel 5 16-bits Open 6 16-bits Open 7 16-bits Open

KU440EX Motherboard Technical Product Specification

2.3 I/O Map

Table 29. I/O Map

Address (hex) Size Description

0000 - 000F 16 bytes DMA controller 1 0020 - 0021 2 bytes Interrupt controller 1 002E - 002F 2 bytes Super I/O controller configuration registers 0040 - 0043 4 bytes Counter/Timer 1 0048 - 004B 4 bytes Counter/Timer 2 0060 1 byte Keyboard controller 0061 1 byte NMI, speaker control 0064 1 byte Keyboard controller 0070 - 0071 2 bytes Real time clock controller 0080 - 008F 16 bytes DMA page registers 00A0 - 00A1 2 bytes Interrupt controller 2 00B2 - 00B3 2 bytes APM control 00C0 - 00DE 31 bytes DMA controller 2 00F0 - 00FF 16 bytes Numeric processor 0120 - 0127 8 bytes Audio controller 0170 - 0177 8 bytes Secondary IDE controller 01F0 - 01F7 8 bytes Primary IDE controller 0200 - 0207 8 bytes Audio / game port / joy stick 0220 - 022F 16 bytes Audio (Sound Blaster compatible) 0228 - 022F 8 bytes LPT3 0274 - 0277 4 bytes I/O read data port for ISA Plug and Play enumerator 0278 - 027F 8 bytes LPT2 0330 - 0331 2 bytes MPU-401 (MIDI) 0376 - 0377 2 bytes Secondary IDE controller 0378 - 037F 8 bytes LPT1 0388- 038D 6 bytes AdLib 03B0 - 03BB 12 bytes Video (monochrome) 03C0 - 03DF 32 bytes Video (VGA†) 03F0 - 03F5, 03F7 7 bytes Floppy controller 03F6 1 byte Primary IDE controller 03F8 - 03FF 8 bytes COM1 04D0 - 04D1 2 bytes Edge/level triggered PIC 0530 - 0537 8 bytes Windows Sound System LPTn + 400h 8 bytes ECP port, LPTn base address + 400h 0CF8 - 0CFF* 8 bytes PCI configuration registers 0CF9** 1 byte Turbo and reset control register

7000 - 700C 13 bytes SMBus I/O Register 8000 - 8037 55 bytes Power Management I/O Registers

†

(FM synthesizer)

* DWORD access only ** Byte access only

2.4 PCI Configuration Space Map

Table 30. PCI Configuration Space Map

Motherboard Resources

Bus Number (hex)

00 00 00 Intel® 82443EX (PAC) 00 01 00 Intel 82443EX (PAC) A.G.P. bus 00 07 00 Intel 82371EB (PIIX4E) PCI/ISA bridge 00 07 01 Intel 82371EB (PIIX4E) IDE bus master 00 07 02 Intel 82371EB (PIIX4E) USB 00 07 03 Intel 82371EB (PIIX4E) power management 00 06 00 Intel 83558 Ethernet controller (if present) 01 00 00 ATI Rage II C 00 12 00 14

2.5 Interrupts

Table 31. Interrupts

IRQ System Resource

NMI I/O channel check 0 Reserved, interval timer 1 Reserved, keyboard controller 2 Reserved, cascade interrupt from slave PIC 3 COM2 (User available if COM2 is not present) 4 COM1* 5 LPT2 (Plug and Play option) / audio / user available 6 Diskette Drive controller 7 LPT1* 8 Real time clock 9 Reserved 10 USB/User available 11 Windows Sound System* / user available 12 PS/2 mouse port (if present, else user available) 13 Reserved, numeric processor 14 Primary IDE (if present, else user available)

Device Number (hex)

‡ ‡

Function Number (hex) Description

00 PCI expansion slot 1 00 PCI expansion slot 2

‡ ‡

15 Secondary IDE (if present, else user available)

* Default, but can be changed to another IRQ

‡

KU440EX Motherboard Technical Product Specification

2.6 PCI Interrupt Routing Map

This section describes interrupt sharing and how the interrupt signals are connected between the

‡

PCI expansion slots be shared between devices attached to the PCI bus. In most cases, the small amount of latency added by interrupt sharing does not affect the operation or throughput of the devices. In some special cases where maximum performance is needed from a device, a PCI device should not share an interrupt with other PCI devices. Use the following information to avoid sharing an interrupt with a PCI add-in card.

PCI devices are categorized as follows to specify their interrupt grouping:

• INTA: By default, all add-in cards that require only one interrupt are in this category. For

almost all cards that require more than one interrupt, the first interrupt on the card is also classified as INTA.

• INTB: Generally, the second interrupt on add-in cards that require two or more interrupts is

classified as INTB. (This is not an absolute requirement.)

• INTC and INTD: Generally, a third interrupt on add-in cards is classified as INTC and a

fourth interrupt is classified as INTD.

and onboard PCI devices. The PCI specification specifies how interrupts can

The PIIX4E PCI-to-ISA bridge has four programmable interrupt request (PIRQ) input signals. Any PCI interrupt source (either onboard or from a PCI add-in card) connects to one of these PIRQ signals. Because there are only four signals, some PCI interrupt sources are mechanically tied together on the motherboard and therefore share the same interrupt. Table 32 lists the PIRQ

‡

signals and shows how the signals are connected to the PCI expansion slots

and to onboard PCI

interrupt sources.

Table 32. PCI Interrupt Routing Map

First PCI PIIX4 PIRQ Signal

PIRQA INTA INTB INTC INTA PIRQB INTB INTC INTD PIRQC INTC INTD INTA PIRQD INTD INTA INTB INTA INTA

Expansion

‡

Slot

Second PCI Expansion

‡

Slot

Third PCI Expansion

‡

Slot

Onboard Video USB

Ethernet LAN Controller

For example, assume an add-in card has one interrupt (group INTD) into the second PCI slot. In this slot, an interrupt source from group INTA connects to the PIRQD signal, which is already connected to the onboard video and USB PCI sources. The add-in card shares an interrupt with these onboard interrupt sources.

NOTE

✏

The PIIX4E can connect each PIRQ line internally to one of the IRQ signals (3, 4, 5, 7, 11, 14, 15). Typically, a device that does not share a PIRQ line will have a unique interrupt. However, in certain interrupt-constrained situations, it is possible for two or more of the PIRQ lines to be connected to the same IRQ signal.

3 Overview of BIOS Features

The motherboard uses an Intel/Phoenix BIOS, which is stored in flash memory and can be upgraded using a disk-based program. In addition to the BIOS, the flash memory contains the Setup program, Power-On Self Test (POST), Advanced Power Management (APM), the PCI autoconfiguration utility, and Windows 95-ready Plug and Play. See Section 6.2 for the supported versions of these specifications.

This motherboard supports system BIOS shadowing, allowing the BIOS to execute from 64-bit onboard write-protected DRAM.

The BIOS displays a message during POST identifying the type of BIOS and a revision code. The initial production BIOS is identified as 4K4UE0X0.86A.xxxx.P01.

3.1 BIOS Upgrades

The BIOS can be upgraded from a diskette using the Intel Flash Memory Update utility that is available from Intel. This utility upgrades the BIOS as follows:

• Updates the flash BIOS from a file on a disk

• Updates the language section of the BIOS

• Makes sure that the upgrade BIOS matches the target system to prevent accidentally installing

a BIOS for a different type of system.

BIOS upgrades and the Intel Flash Memory Update utility are available from Intel through the Intel World Wide Web site. See Section 6.1 for information about this site.

NOTE

✏

Please review the instructions distributed with the upgrade utility before attempting a BIOS upgrade.

KU440EX Motherboard Technical Product Specification

3.2 BIOS Flash Memory Organization

The Intel 28F002 2-Mbit flash component is organized as 256 KB x 8 bits and is divided into areas as described in Table 33. The table shows the addresses in the ROM image in normal mode (the addresses change in BIOS Recovery Mode).

Table 33. Flash Memory Organization

Address (Hex) Size Description

FFFFC000 - FFFFFFFF 16 KB Boot Block FFFFA000 - FFFFBFFF 8 KB Vital Product Data (VPD) Extended System Configuration Data

(ESCD) (SMBIOS configuration data / Plug and Play data) FFFF9000 - FFFF9FFF 4 KB Used by BIOS (for activities such as Event Logging) FFFF8000 - FFFF8FFF 4 KB OEM logo or Scan Flash Area FFFC0000 - FFFF7FFF 224 KB Main BIOS Block

3.3 Plug and Play: PCI Autoconfiguration

The BIOS can automatically configure PCI devices and Plug and Play devices. PCI devices may be onboard or add-in cards. Plug and Play devices are ISA devices built to meet the Plug and Play specification. Autoconfiguration lets a user insert or remove PCI or Plug and Play cards without having to configure the system. When a user turns on the system after adding a PCI or Plug and Play card, the BIOS automatically configures interrupts, the I/O space, and other system resources. Any interrupts set to Available in Setup are considered to be available for use by the add-in card.

PCI interrupts are distributed to available ISA interrupts that have not been assigned to an ISA card or to system resources. The assignment of PCI interrupts to ISA IRQs is nondeterministic. PCI devices can share an interrupt, but an ISA device cannot share an interrupt allocated to PCI or to another ISA device. Autoconfiguration information is stored in the extended system configuration data (ESCD) format.

For information about the versions of PCI and Plug and Play supported by this BIOS, see Section 6.2. Copies of the specifications can be obtained from the Intel World Wide Web site (see Section 6.2).

Overview of BIOS Features

3.4 PCI IDE Support

If you select Auto in Setup, the BIOS automatically sets up the two PCI IDE connectors with independent I/O channel support. The IDE interface supports hard drives up to PIO Mode 4 and recognizes any ATAPI devices, including CD-ROM drives, tape drives and Ultra DMA drives (see Section 6.2 for the supported version of ATAPI). Add-in ISA IDE controllers are not supported. The BIOS determines the capabilities of each drive and configures them to optimize capacity and performance. To take advantage of the high capacities typically available today, hard drives are automatically configured for Logical Block Addressing (LBA) and to PIO Mode 3 or 4, depending on the capability of the drive. You can override the auto-configuration options by specifying manual configuration in Setup. The ATAPI Specification recommends that ATAPI devices be configured as shown in Table 34.

Table 34. Recommendations for Configuring an ATAPI Device

Primary Cable Secondary Cable

Configuration

Normal, no ATAPI ATA Disk and CD-ROM for enhanced IDE systems ATA ATAPI Legacy IDE system with only one cable ATA ATAPI Enhanced IDE with CD-ROM and a tape or two CD-ROMs ATA ATAPI ATAPI

Drive 0 Drive 1 Drive 0 Drive 1

3.5 ISA Plug and Play

If Plug and Play O/S (see Section 4.3) is selected in Setup, the BIOS autoconfigures only ISA Plug and Play cards that are required for booting (IPL devices). If Plug and Play O/S is not selected in Setup, the BIOS autoconfigures all Plug and Play ISA cards.

3.6 ISA Legacy Devices

Since ISA legacy devices are not autoconfigurable, the resources for them must be reserved. Resources can be reserved in the Setup program or with an ISA configuration utility. The ISA configuration utility can be downloaded from the Intel World Wide Web site (see Section 6.1).

KU440EX Motherboard Technical Product Specification

3.7 System Management BIOS (SMBIOS)

System Management BIOS (SMBIOS) is an interface for managing computers in an enterprise environment. The main component of SMBIOS is the management information format (MIF) database, which contains information about the computing system and its components. Using SMBIOS, a system administrator can obtain the system types, capabilities, operational status, and installation dates for system components. The MIF database defines the data and provides the method for accessing this information. The BIOS enables applications such as Intel Client Manager to use SMBIOS. The BIOS stores and reports the following SMBIOS information:

• BIOS data, such as the BIOS revision level

• Fixed-system data, such as peripherals, serial numbers, and asset tags

• Resource data, such as memory size, cache size, and processor speed

• Dynamic data, such as event detection and error logging

OEMs can use a utility that programs flash memory so the BIOS can report on system and chassis information. This utility is available through Intel sales offices. See Section 6.1 for information about contacting a local Intel sales office. See Section 6.2 for information about the latest SMBIOS specification.

LANDesk

SMBIOS does not work directly under non-Plug and Play operating systems (such as Windows NT). However, the BIOS supports a SMBIOS table interface for such operating systems. Using this support, a SMBIOS service-level application running on a non-Plug and Play OS can access the SMBIOS BIOS information.

3.8 Advanced Power Management (APM)

See Section 6.2 for the version of the APM specification that is supported. The energy saving standby mode can be initiated in the following ways:

• Time-out period specified in Setup

• Suspend/resume switch connected to the front panel sleep connector

• From the operating system, such as the Suspend menu item in Windows 95

In standby mode, the motherboard can reduce power consumption by spinning down hard drives,

†

and reducing power to or turning off VESA

DPMS-compliant monitors. Power-management

mode can be enabled or disabled in Setup (see Section 4.5). While in standby mode, the system retains the ability to respond to external interrupts and service

requests, such as incoming faxes or network messages. Any keyboard or mouse activity brings the system out of standby mode and immediately restores power to the monitor.

The BIOS enables APM by default; but the operating system must support an APM driver for the power-management features to work. For example, Windows 95 supports the power-management features upon detecting that APM is enabled in the BIOS.

‡

Overview of BIOS Features

3.9 Advanced Configuration and Power Interface (ACPI)

ACPI gives the operating system direct control over the power management and Plug and Play functions of a computer. ACPI requires an ACPI-aware operating system. ACPI features include:

• Plug and Play (including bus and device enumeration) and Advanced Power Management

(APM) functionality normally contained in the BIOS

• Power management control of individual devices, add-in boards (some add-in boards may

require an ACPI-aware driver), video displays, and hard disk drives

• Methods for achieving less than 30-watt system operation in the Power On Suspend sleeping

state, and less than 5-watt system operation in the Soft Off sleeping state

• A Soft-off feature that enables the operating system to power off the computer

• Support for multiple wake up events (see Table 37)

• Support for a front panel power and sleep mode switch. Table 35 describes the system states

based on how long the switch is pressed

Table 35. Effects of Pressing the Power Switch

…and the power switch is

If the system is in this state…

Off Less than four seconds Power on On Less than four seconds Sleep On More than four seconds Power off Sleep Less than four seconds Wake up

pressed for …the system enters this state

‡

3.9.1 System States and Power States

Under ACPI, the operating system directs all system and device power state transitions. The operating system puts devices in and out of low-power states based on user preferences and knowledge of how devices are being used by applications. Devices that are not being used can be turned off. The operating system uses information from applications and user settings to put the system as a whole into a low-power state.

Table 36 lists the power states supported by the motherboard along with the associated system power targets. See the ACPI specification for a complete description of the various system and power states.

KU440EX Motherboard Technical Product Specification

Table 36. Power States and Targeted System Power

Global States Sleeping States Processor States Device States Targeted System Power *

G0 - working state

G1 - sleeping state

G2/S5 S5 - Soft off.

G3 mechanical off.

The power supply A/C main inputs are disconnected.

S0 - working C0 - working D0 - working

S1 - Processor stopped

Context not saved. Cold boot is required.

No power to the system.

C1 - stop grant D1, D2, D3-

No power D3 - no power

state

device specification specific.

except for wake up logic.

for wake up logic, except when provided by battery or external source.

Full power > 60 W

5 W < power < 30 W

Power < 5 W **

No power to the system so that service can be performed.

* Total system power is dependent on the system configuration, including add-in boards and peripherals powered by the

system chassis’ power supply.

** Dependent on the standby power consumption of wake-up devices used in the system.

3.9.2 Wake Up Devices and Events

The table below describes which devices or specific events can wake the computer from specific states.

Table 37. Wake Up Devices and Events

These devices/events can wake up the computer… …from this state

Power switch S1, S5 RTC alarm S1, S5 Modem S1, S5 USB S1 PS/2 keyboard S1 PS/2 mouse S1

3.9.3 Plug and Play

In addition to power management, ACPI provides controls and information so that the operating system can facilitate Plug and Play device enumeration and configuration. ACPI is used only to enumerate and configure motherboard devices that do not have other hardware standards for enumeration and configuration. PCI devices on the motherboard, for example, are not enumerated by ACPI.

Overview of BIOS Features

3.9.4 BIOS Support

The BIOS supports both APM and ACPI. If the board is used with an ACPI-aware operating system, the BIOS provides ACPI support. Otherwise, it defaults to APM support.

3.10 Language Support

The Setup program and help messages can be supported in 32 languages. Five languages are available: American English, German, Italian, French, and Spanish. The default language is American English, which is present unless another language is programmed into the BIOS using the flash memory update utility. See Section 3.1 for information about the BIOS update utility.

3.11 Boot Options

In the Setup program, the user can choose to boot from a floppy drive, hard drive, CD-ROM, network, or any BIOS boot specification (BBS) compliant device. The default setting is for the floppy drive to be the primary boot device and the hard drive to be the secondary boot device. By default the third and fourth devices are disabled.

Booting from CD-ROM is supported in compliance to the El Torito bootable CD-ROM format specification. See Section 6.2 for information about the El Torito specification. Under the Boot menu in the Setup program, CD-ROM is listed as a boot device. Boot devices are defined in priority order. If the CD-ROM is selected as the boot device, it must be the first device.

The network can be selected as a boot device. This selection allows booting from a network add-in card with a remote boot ROM installed.

3.12 OEM Logo or Scan Area

A 4 KB flash-memory user area at memory location FFFF8000h-FFFF8FFFh is for displaying a custom OEM logo during POST. A utility is available from Intel to assist with installing a logo into the flash memory. Contact Intel customer support for further information. See Section 6.1 for information on contacting Intel customer support.

KU440EX Motherboard Technical Product Specification

3.13 USB Legacy Support

USB legacy support enables USB keyboards and mice to be used even when no operating system USB drivers are in place. By default, USB legacy support is disabled. USB legacy support is only intended to be used in accessing BIOS Setup and installing an operating system that supports USB.

This sequence describes how USB legacy support operates in the default (disabled) mode.

1. When you power up the computer, USB legacy support is disabled.

2. POST begins.

3. USB legacy support is temporarily enabled by the BIOS. This allows you to use a USB keyboard to enter the Setup program or the maintenance mode.

4. POST completes and disables USB legacy support (unless it was set to Enabled while in Setup).

5. The operating system loads. While the operating system is loading, USB keyboards and mice are not recognized. After the operating system loads the USB drivers, the USB devices are recognized.

To install an operating system that supports USB, enable USB Legacy support in BIOS Setup and follow the operating system’s installation instructions. Once the operating system is installed and the USB drivers configured, USB legacy support is no longer used. USB Legacy Support can be left enabled in BIOS Setup if needed.

Notes on using USB legacy support:

• If USB legacy support is enabled, don't mix USB and PS/2 keyboards and mice. For example, do not use a PS/2 keyboard with a USB mouse, or a USB keyboard and a PS/2 mouse.

• Do not use USB devices with an operating system that does not support USB. USB legacy is not intended to support the use of USB devices in a non USB operating system.

• USB legacy support is for keyboards and mice only. Hubs and other USB devices are not supported.

3.14 BIOS Setup Access

Access to the Setup program can be restricted using passwords. User and administrative passwords can be set using the Security menu in Setup. The default is no passwords enabled. See Section 4.4 for information about setting user and administrative passwords.

3.15 Recovering BIOS Data

Some types of failure can destroy the BIOS. For example, the data can be lost if a power outage occurs while the BIOS is being updated in flash memory. The BIOS can be recovered from a diskette using the BIOS recovery mode.

To create a BIOS recovery diskette, a bootable diskette must be created and the recovery files copied to it. The recovery files are available from Intel, contact Intel customer support for further information. See Section 6.1 for information on contacting Intel customer support.

4 BIOS Setup Program

The Setup program is for viewing and changing the BIOS settings for a computer. Setup is accessed by pressing the <F2> key after the Power-On Self Test (POST) memory test begins and before the operating system boot begins.

Table 38 shows the menus available from the menu bar at the top of the Setup screen.

Table 38. Setup Menu Bar

Setup Menu Screen Description

Maintenance Specifies the processor speed and clears the Setup passwords. This

menu is only available in configure mode. Refer to Section 1.18 for

information about configure mode. Main Allocates resources for hardware components. Advanced Specifies advanced features available through the chipset. Security Specifies passwords and security features. Power Specifies power management features. Boot Specifies boot options and power supply controls. Exit Saves or discards changes to the Setup program options.

Table 39 shows the function keys available for menu screens.

Table 39. Setup Function Keys

Setup Key Description

<F1> or <Alt-H> Brings up a help screen for the current item. <Esc> Exits the menu. <←> or <→> Selects a different menu screen. <↑> or <↓> Moves cursor up or down. <Home> or <End> Moves cursor to top or bottom of the window. <PgUp> or <PgDn> Moves cursor to top or bottom of the window. <F5> or <-> Selects the previous value for a field. <F6> or <+> or <Space> Selects the next value for a field. <F9> Load the default configuration values for the current menu. <F10> Save the current values and exit Setup. <Enter> Executes command or selects the submenu.

KU440EX Motherboard Technical Product Specification

4.1 Maintenance Menu

The maintenance menu is for setting the processor speed and clearing the Setup passwords. Setup only displays this menu in configure mode. See Section 1.18 for information about setting configure mode.

Table 40. Maintenance Menu

Feature Options Description

Processor Speed • 233

• 266

• 300

• 333

Clear All Passwords No options Clears the user and administrative passwords.

Specifies the processor speed in megahertz. This setup screen will only show speeds up to and including the maximum speed of the processor installed on the motherboard.

With a host bus operating at 66 MHz, the board supports processors at the following speeds: 266, 300, and 333 MHz.

4.2 Main Menu

This menu reports processor and memory information and is for configuring the system date and system time.

Table 41. Main Menu

Feature Options Description

BIOS Version No options Displays the version of the BIOS. Processor Type No options Displays processor type. Processor Speed No options Displays processor speed. Cache RAM No options Displays size of second-level cache, if present. System Memory No options Displays the total amount of RAM on the motherboard. Memory Bank 0

Memory Bank 1 Language • English (US)

System Time Hour, minute,

System Date Month, day, and

No options Displays size and type of DIMM installed in each memory bank.

Displays the default language used by the BIOS.

(default)

• Italian

• Francais

• Deutsch

• Espanol

Specifies the current time.

and second

Specifies the current date.

year

4.3 Advanced Menu

This menu is for setting advanced features that are available through the chipset.

Table 42. Advanced Menu

Feature Options Description

Plug & Play O/S • No (default)

• Yes

Reset Configuration Data • No (default)

• Yes

Numloc • Auto (default)

• On

• Off

Peripheral Configuration No options Configures peripheral ports and devices. When

Primary IDE Master, submenu

Floppy Configuration, submenu

SMBIOS Events Logging No options Configures SMBIOS Events Logging. When selected,

Video Configuration No options Configures video features. When selected, displays

Resource Configuration No options Configures memory blocks and IRQs for legacy ISA

No options Specifies Reports type of connected IDE device.

No options When selected, displays the Floppy Options

Specifies if a Plug and Play operating system is being used.

lets the BIOS configure all devices.

Yes

lets the operating system configure Plug and Play devices. Not required with a Plug and Play operating system.

Clears the BIOS configuration data on the next boot.

Specifies the power on state of the Num Lock feature on the numeric keypad of the keyboard.

selected, displays the Peripheral Configuration submenu.

When selected, displays the Primary IDE Master submenu.

submenu.

displays the SMBIOS Events Logging submenu.

the Video Configuration submenu.

devices. When selected, displays the Resource Configuration submenu.

BIOS Setup Program

KU440EX Motherboard Technical Product Specification

4.3.1 Peripheral Configuration Submenu

This submenu is for the configuring the computer peripherals.

Table 43. Peripheral Configuration Submenu

Feature Options Description

Serial port A • Disabled

• Enabled

• Auto (default)

Base I/O address

Interrupt • IRQ 3

Serial port B • Disabled

Mode • Normal (default)

Base I/O address

Interrupt • IRQ 3 (default)

Parallel port • Disabled

Mode • Output Only

• 3F8 (default)

• 2F8

• 3E8

• 2E8

• IRQ 4 (default)

• Enabled

• Auto (default)

• IrDA

• ASK-IR

• 3F8

• 2F8 (default)

• 3E8

• 2E8

• IRQ 4

• Enabled

• Auto (default)

• Bi-directional (default)

• EPP

• ECP

Configures serial port A.

Auto

assigns the first free COM port, normally COM1, the

address 3F8h and the interrupt IRQ4. An * (asterisk) displayed next to an address indicates a

conflict with another device. Specifies the base I/O address for serial port A.

Specifies the interrupt for serial port A.

Configures serial port B.

Auto

assigns the first free COM port, the address 2F8h

and the interrupt IRQ3. An * (asterisk) displayed next to an address indicates a

conflict with another device. If either serial port address is set, that address will not

appear in the list of options for the other serial port. Specifies the mode for serial port B for normal or infrared

applications.

Specifies the base I/O address for serial port B.

Specifies the interrupt for serial port B.

Configures the parallel port.

Auto

assigns LPT1 the address 378h and the interrupt

IRQ7. An * (asterisk) displayed next to an address indicates a

conflict with another device. Selects the mode for the parallel port.

Output Only Bi-directional

mode.

EPP

is Extended Parallel Port mode, a high-speed bi-

directional mode.

ECP

is Enhanced Capabilities Port mode, a high-speed

bi-directional mode.

operates in AT†-compatible mode.

operates in bi-directional PS/2-compatible

continued

BIOS Setup Program

Table 43. Peripheral Configuration Submenu

Feature Options Description

Base I/O address

Interrupt • IRQ 5

Audio • Disabled

LAN • Disabled

PXE • Disabled

USB Legacy (Optional)

• 378 (default)

• 278

• 228

• IRQ 7 (default)

• Enabled (default)

• Disabled (default)

• Enabled

4.3.2 IDE Configuration

Table 44. IDE Configuration

Feature Options Description

IDE Controller • Disabled

• Primary

• Secondary

• Both (default)

Hard Disk Pre-Delay • Disabled (default)

• 3 Seconds

• 6 Seconds

• 9 Seconds

• 12 Seconds

• 15 Seconds

• 21 Seconds

• 30 Seconds

Primary IDE Master No options Reports type of connected IDE device. When selected,

Primary IDE Slave No options Reports type of connected IDE device. When selected,

Secondary IDE Master No options Reports type of connected IDE device. When selected,

Secondary IDE Slave No options Reports type of connected IDE device. When selected,

(continued)

Specifies the base I/O address for the parallel port.

Specifies the interrupt for the parallel port.

Enables or disables the onboard audio subsystem.

Enables or disables onboard LAN.

Enables or disables the PXE.

Enables or disables the optional legacy USB support.

Specifies the integrated IDE controller.

Primary Secondary Both

Specifies the hard disk drive pre-delay.

displays the Primary IDE Master submenu.

displays the Primary IDE Slave submenu.

displays the Secondary IDE Master submenu

displays the Secondary IDE Slave submenu.

enables only the Primary IDE Controller.

enables only the Secondary IDE Controller.

enables both IDE controllers.

KU440EX Motherboard Technical Product Specification

4.3.3 IDE Configuration Submenus

This submenu is for configuring IDE devices, including:

• Primary IDE master

• Primary IDE slave

• Secondary IDE master

• Secondary IDE slave

Table 45. IDE Configuration Submenus

Feature Options Description

Type • None

• ATAPI Removable

• Other ATAPI

• CD-ROM

• User

• IDE Removable

• Auto (default)

Maximum Capacity No options Reports the maximum capacity for the hard disk. Multi-Sector Transfers • Disabled (default)

• 2 Sectors

• 4 Sectors

• 8 Sectors

• 16 Sectors

LBA Mode Control • Disabled (default)

• Enabled

Transfer Mode • Standard (default)

• Fast PIO 1

• Fast PIO 2

• Fast PIO 3

• Fast PIO 4

• FPIO 3 / DMA 1

• FPIO 4 / DMA 2

Ultra DMA • Disabled (default)

• Mode 0

• Mode 1

• Mode 2

Specifies the IDE configuration mode for IDE devices.

User

allows the cylinders, heads, and sectors

fields to be changed.

Auto

automatically fills in the values for the

cylinders, heads, and sectors fields.

Specifies number of sectors per block for transfers from the hard drive to memory.

Check the hard drive’s specifications for optimum setting.

Enables or disables the LBA mode control.

Specifies the method for moving data to/from the drive.

Specifies the Ultra DMA mode for the drive.

4.3.4 Floppy Options Submenu

This submenu is for configuring the floppy drive.

Table 46. Floppy Options Submenu

Feature Options Description

Floppy Disk Controller • Auto

• Disabled

• Enabled (default)

Diskette A: • Disabled

• 360 KB, 5¼″

• 1.2 MB, 5¼″

• 720 KB, 3½″

• 1.44/1.25 MB, 3½″ (default)

• 2.88 MB, 3½″

Floppy Write Protect • Disabled (default)

• Enabled

BIOS Setup Program

Disables or enables the integrated floppy disk controller.

Specifies the capacity and physical size of diskette drive A.

Disables or enables write protect for the diskette drive.

4.3.5 DMI Event Logging

This submenu is for configuring the DMI event logging features.

Table 47. DMI Event Logging Submenu

Feature Options Description

Event log capacity No options Indicates if there is space available in the event log. Event log validity No options Indicates if the contents of the event log are valid. View DMI event log No options Enables viewing of SMBIOS event log. Clear all DMI event logs • No (default)

• Yes

Event Logging • Disabled

• Enabled (default)

Mark DMI events as read No options Marks all SMBIOS events as read.

4.3.6 Video Configuration Submenu

This submenu is for configuring video features.

Table 48. Video Configuration Submenu

Feature Options Description

Palette Snooping • Disabled (default)

• Enabled

AGP Aperture Size • 64 MB (default)

• 256 MB

Controls the ability of a primary PCI graphics controller to share a common palette with an ISA add-in video card.

Specifies the aperture size for the A.G.P. video controller.

Clears the SMBIOS event log after rebooting.

Enables logging of SMBIOS events.

KU440EX Motherboard Technical Product Specification

4.3.7 Resource Configuration Submenu

This submenu is for configuring the memory and interrupts.

Table 49. Resource Configuration Submenu

Feature Options Description

Memory Reservation

IRQ Reservation

• C800 - CBFF Available (default) | Reserved

• CC00- CFFF Available (default) | Reserved

• D000 - D3FF Available (default) | Reserved

• D400 - D7FF Available (default) | Reserved

• D800 - DBFF Available (default) | Reserved

• DC00 - DFFF Available (default) | Reserved

• IRQ3 Available (default) | Reserved

• IRQ4 Available (default) | Reserved

• IRQ5 Available (default) | Reserved

• IRQ7 Available (default) | Reserved

• IRQ10 Available (default) | Reserved

• IRQ11 Available (default) | Reserved

Reserves specific upper memory blocks for use by legacy ISA devices.

Reserves specific IRQs for use by legacy ISA devices.

An * (asterisk) displayed next to an IRQ indicates an IRQ conflict.

4.4 Security Menu

This menu is for setting passwords and security features.

Table 50. Security Menu

Feature Options Description

User Password Is No options Reports if there is a user password set. Administrative Password Is No options Reports if there is a administrative password

Set User Password Password can be up to seven

alphanumeric characters.

Set Administrative Password

Clear User No Options Clears the user password. User Setup Access • Disabled

Unattended Start • Disabled (default)

Password can be up to seven alphanumeric characters.

• View only (default)

• Limited access

• Enabled

set. Specifies the user password.

Specifies the administrative password.

Enables or disables User Setup Access.

Disabled

Setup. View only and limited access options are available only when the administrative password is set.

Enables the unattended start feature. When enabled, the computer boots, but the keyboard is locked. The user must enter a password to unlock the computer or boot from a floppy diskette.

prevents the user from accessing

4.5 Power Menu

This menu is for setting power management features.

Table 51. Power Menu

Feature Options Description

Power Management • Disabled

• Enabled (default)

Fan always on • Yes

• No (default)

Inactivity Timer • Off (default) (default)

• 1 Minute

• 5 Minutes

• 10 Minutes

• 20 Minutes

• 30 Minutes

• 60 Minutes

• 120 Minutes

Hard Drive • Disabled

• Enabled (default)

VESA Video Power Down • Disabled

• Standby (default)

• Suspend

• Sleep

BIOS Setup Program

Enables or disables the BIOS power management feature.

If enabled, the fan will continue to run when the system has been powered off.

Specifies the amount of time before the computer enters standby mode.

Enables power management for hard disks during standby and suspend modes.

Specifies power management for video during standby and suspend modes.

4.6 Boot Menu

This menu is for setting the boot features and the boot sequence.

Table 52. Boot Menu

Feature Options Description

Quick Boot Mode • Disabled

• Enabled (default)

Scan User Flash Area

After Power Failure • Power On

On Modem Ring • Stay Off

On LAN • Stay Off

• Disabled (default)

• Enabled

• Stay Off

• Last State (default)

• Power On (default)

Enables the computer to boot without running certain POST tests.

Enables the BIOS to scan the flash memory for user binary files that are executed at boot time.

Specifies the mode of operation if an AC/Power loss occurs.

Power On Stay Off

pressed.

Last State

loss occurred. Specifies how the computer responds to an incoming call

on an installed modem when the system is off. Specifies how the computer responds to a LAN wakeup

event when the power is off.

restores power to the computer.

keeps the power off until the power button is

restores the previous power state before power

continued

KU440EX Motherboard Technical Product Specification

Table 52. Boot Menu

Feature Options Description

On PME • Stay Off (default)

First Boot Device Second Boot Device Third Boot Device Fourth Boot Device Fifth Boot Device

Hard Drive No options Lists available hard drives. When selected, displays the

Removable Devices No options Lists available removable devices. When selected,

(continued)

• Power On

• Removable devices

• Hard Drive

• ATAPI CD-ROM

Drive

• Network Boot

• LSA

Specifies how the computer responds to a PME wakeup event when the power is off.

Specifies the boot sequence from the available devices. To specify boot sequence:

1. Select the boot device with <↑> or <↓>.

2. Press <+> to move the device up the list or <-> to move the device down the list.

The operating system assigns a drive letter to each boot device in the order listed. Changing the order of the devices changes the drive lettering.

LSA option is available only if LAN is present.

Hard Drive submenu.

displays the Removable Devices submenu.

4.6.1 Hard Drive Submenu

This submenu is for configuring the boot sequence for hard drives.

Table 53. Hard Drive Submenu

Options Description

• Bootable Add in Card Specifies the boot sequence for the hard drives attached to the computer. To specify boot sequence:

1. Select the boot device with <↑> or <↓>.

2. Press <+> to move the device up the list or <-> to move the device down

the list. The operating system assigns a drive letter to each device in the order listed. Changing the order of the devices changes the drive lettering.

4.6.2 Removable Devices Submenu

This submenu is for configuring the boot sequence for removable devices.

Table 54. Removable Devices Submenu

Options Description

• Legacy Floppy Drives Specifies the boot sequence for the removable devices attached to the computer. To specify boot sequence:

1. Select the boot device with <↑> or <↓>.

2. Press <+> to move the device up the list or <-> to move the device down

the list. The operating system assigns a drive letter to each device in the order listed. Changing the order of the devices changes the drive lettering.

4.7 Exit Menu

This menu is for exiting the Setup program, saving changes, and loading and saving defaults.

Table 55. Exit Menu

Feature Description

Exit Saving Changes Exits and saves the changes in CMOS RAM. Exit Discarding Changes Exits without saving any changes made in Setup. Load Setup Defaults Loads the factory default values for all the Setup options. Load Custom Defaults Loads the custom defaults for Setup options. Save Custom Defaults Saves the current values as custom defaults. Normally, the BIOS reads the

Setup values from flash memory. If this memory is corrupted, the BIOS reads the custom defaults. If no custom defaults are set, the BIOS reads the factory defaults.

Discard Changes Discards changes without exiting Setup. The option values present when the

computer was turned on are used.

BIOS Setup Program

KU440EX Motherboard Technical Product Specification

5 Error Messages and Beep Codes

5.1 BIOS Error Messages

Table 56. BIOS Error Messages

Error Message Explanation

Diskette drive A error Drive A is present but fails the POST diskette tests. Check that the drive

is defined with the proper diskette type in Setup and that the diskette drive

is installed correctly.

Extended RAM Failed at offset:

nnnn

Failing Bits:

Fixed Disk 0 Failure or Fixed Disk 1 Failure or Fixed Disk Controller Failure

Incorrect Drive A type - run SETUP

Invalid NVRAM media type Problem with NVRAM (CMOS) access. Keyboard controller error The keyboard controller failed test. Try replacing the keyboard. Keyboard error Keyboard not working. Keyboard error nn BIOS discovered a stuck key and displays the scan code nn for the stuck

Keyboard locked - Unlock key switch

Monitor type does not match CMOS - Run SETUP

Operating system not found Operating system cannot be located on either drive A or drive C. Enter

Parity Check 1 Parity error found in the system bus. BIOS attempts to locate the address

Parity Check 2 Parity error found in the I/O bus. BIOS attempts to locate the address and

Press <F1> to resume, <F2> to Setup

Real time clock error Real-time clock fails BIOS test. May require motherboard repair.

nnnn

Extended memory not working or not configured properly at offset

The hexadecimal number

(System, Extended, or Shadow memory) that failed the memory test.

Each 1 in the map indicates a failed bit.

Fixed disk is not working or not configured properly. Check to see if fixed

disk is installed properly. Run Setup be sure the fixed-disk type is

correctly identified.

Type of diskette drive for drive A not correctly identified in Setup.

key.

Unlock the system to proceed.

Monitor type not correctly identified in Setup.

Setup and see if fixed disk and drive A are properly identified.

and display it on the screen. If it cannot locate the address, it displays

????.

display it on the screen. If it cannot locate the address, it displays ????.

Displayed after any recoverable error message. Press <F1> to start the

boot process or <F2> to enter Setup and change any settings.

nnnn

is a map of the bits at the RAM address

nnnn

continued

KU440EX Motherboard Technical Product Specification

Table 56. BIOS Error Messages

Error Message Explanation

Shadow RAM Failed at offset:

nnnn

System battery is dead Replace and run SETUP

System cache error - Cache disabled

System CMOS checksum bad run SETUP

System RAM Failed at offset:

nnnn

System timer error The timer test failed. Requires repair of system motherboard.

nnnn = hexadecimal number

(continued)

Shadow RAM failed at offset

was detected.

The CMOS clock battery indicator shows the battery is dead. Replace the

battery and run Setup to reconfigure the system.

RAM cache failed the BIOS test. BIOS disabled the cache.

System CMOS RAM has been corrupted or modified incorrectly, perhaps

by an application program that changes data stored in CMOS. Run Setup

and reconfigure the system either by getting the default values and/or

making your own selections.

System RAM failed at offset

was detected.

nnnn

of the 64 KB block at which the error

nnnn

of the 64 KB block at which the error

Error Messages and Beep Codes

5.2 Port 80h POST Codes

During the POST, the BIOS generates diagnostic progress codes (POST codes) to I/O port 80h. If the POST fails, execution stops and the last POST code generated is left at port 80h. This code is useful for determining the point where an error occurred.

Displaying the POST codes requires an add-in card (often called a POST card). The POST card can decode the port and display the contents on a medium such as a seven-segment display. These cards can be purchased from JDR Microdevices or other sources.

The following table provides the POST codes that can be generated by the BIOS. Some codes are repeated in the table because that code applies to more than one operation.

Table 57. Port 80h Codes

Code Description of POST Operation

02h Verify real mode 03h Disable non-maskable interrupt (NMI) 04h Get processor type 06h Initialize system hardware 08h Initialize chipset with initial POST values 09h Set IN POST flag 0Ah Initialize processor registers 0Bh Enable processor cache 0Ch Initialize caches to initial POST values 0Eh Initialize I/O component 0Fh Initialize the local bus IDE 10h Initialize power management 11h Load alternate registers with initial POST 12h Restore processor control word during warm boot 13h Initialize PCI bus mastering devices 14h Initialize keyboard controller 16h BIOS ROM checksum 17h Initialize cache before memory autosize 18h 8254 timer initialization 1Ah 8237 DMA controller initialization 1Ch Reset programmable interrupt controller 20h Test DRAM refresh 22h Test keyboard controller 24h Set ES segment register to 4 GB 26h Enable A20 line 28h Autosize DRAM

valuesnew

continued

KU440EX Motherboard Technical Product Specification

Table 57. Port 80h Codes

Code Description of POST Operation Currently In Progress

29h Initialize POST memory manager 2Ah Clear 512 KB base RAM 2Ch RAM failure on address line 2Eh RAM failure on data bits 2Fh Enable cache before system BIOS shadow 30h RAM failure on data bits 32h Test processor bus-clock frequency 33h Initialize POST dispatch manager 34h Test CMOS RAM 35h Initialize alternate chipset registers 36h Warm start shut down 37h Reinitialize the chipset (motherboard only) 38h Shadow system BIOS ROM 39h Reinitialize the cache (motherboard only) 3Ah Autosize cache 3Ch Configure advanced chipset registers 3Dh Load alternate registers with CMOS 40h Set Initial processor speed new 42h Initialize interrupt vectors 44h Initialize BIOS interrupts 45h POST device initialization 46h Check ROM copyright notice 47h Initialize manager for PCI option ROMs 48h Check video configuration against CMOS RAM data 49h Initialize PCI bus and devices 4Ah Initialize all video adapters in system 4Bh Display QuietBoot screen 4Ch Shadow video BIOS ROM 4Eh Display BIOS copyright notice 50h Display processor type and speed 51h Initialize EISA motherboard 52h Test keyboard 54h Set key click if enabled 56h Enable keyboard 58h Test for unexpected interrupts 59h Initialize POST display service 5Ah Display prompt "Press F2 to enter SETUP" 5Bh Disable processor cache

(continued)

xxxx*

of low byte of memory bus

xxxx*

of high byte of memory bus

valuesnew

continued

Error Messages and Beep Codes

Table 57. Port 80h Codes

Code Description of POST Operation Currently In Progress

5Ch Test RAM between 512 and 640 KB 60h Test extended memory 62h Test extended memory address lines 64h Jump to UserPatch1 66h Configure advanced cache registers 67h Initialize multiprocessor APIC 68h Enable external and processor caches 69h Setup System Management Mode (SMM) area 6Ah Display external L2 cache size 6Ch Display shadow-area message 6Eh Display possible high address for UMB recovery 70h Display error messages 72h Check for configuration errors 74h Test real-time clock 76h Check for keyboard errors 7Ah Test for key lock on 7Ch Set up hardware interrupt vectors 7Eh Initialize coprocessor if present 80h Disable onboard Super I/O ports and IRQs 81h Late POST device initialization 82h Detect and install external RS232 ports 83h Configure non-MCD IDE controllers 84h Detect and install external parallel ports 85h Initialize PC-compatible PnP ISA devices 86h Re-initialize onboard I/O ports 87h Configure motherboard configurable devices 88h Initialize BIOS Data Area 89h Enable Non-Maskable Interrupts (NMIs) 8Ah Initialize extended BIOS data area 8Bh Test and initialize PS/2 mouse 8Ch Initialize diskette controller 8Fh Determine number of ATA drives 90h Initialize hard-disk controllers 91h Initialize local-bus hard-disk controllers 92h Jump to UserPatch2 93h Build MPTABLE for multiprocessor boards 94h Disable A20 address line (Rel. 5.1 and earlier) 95h Install CD-ROM for boot

(continued)

continued

KU440EX Motherboard Technical Product Specification

Table 57. Port 80h Codes

Code Description of POST Operation Currently In Progress

96h Clear huge ES segment register 97h Fix up multiprocessor table 98h Search for option ROMs 99h Check for SMART Drive 9Ah Shadow option ROMs 9Ch Set up power management 9Eh Enable hardware interrupts 9Fh Determine number of ATA and SCSI drives A0h Set time of day A2h Check key lock A4h Initialize typematic rate A8h Erase F2 prompt Aah Scan for F2 key stroke Ach Enter SETUP Aeh Clear IN POST flag B0h Check for errors B2h POST done - prepare to boot operating system B4h One short beep before boot B5h Terminate QuietBoot B6h Check password (optional) B8h Clear global descriptor table B9h Clean up all graphics Bah Initialize SMBIOS parameters BBh Initialize PnP Option ROMs BCh Clear parity checkers BDh Display MultiBoot menu Beh Clear screen (optional) BFh Check virus and backup reminders C0h Try to boot with INT 19h C1h Initialize POST Error Manager (PEM) C2h Initialize error logging C3h Initialize error display function C4h Initialize system error handler E0h Initialize the chipset E1h Initialize the bridge E2h Initialize the processor

(continued)

continued

Error Messages and Beep Codes

Table 57. Port 80h Codes

(continued)

Code Description of POST Operation (The following are for boot block in flash ROM)

E3h Initialize system timer E4h Initialize system I/O E5h Check force recovery boot E6h Checksum BIOS ROM E7h Go to BIOS E8h Set huge segment E9h Initialize multiprocessor Eah Initialize OEM special code Ebh Initialize PIC and DMA Ech Initialize memory type Edh Initialize memory size Eeh Shadow boot block Efh System memory test F0h Initialize interrupt vectors F1h Initialize runtime clock F2h Initialize video F3h Initialize beeper F4h Initialize boot F5h Clear huge segment F6h Boot to mini-DOS F7h Boot to full DOS

* If the BIOS detects error 2Ch, 2Eh, or 30h (base 512 K RAM error), it displays an additional word-bitmap (xxxx) indicating

the address line or bits that failed. For example, "2C 0002" means address line 1 (bit one set) has failed. "2E 1020" means data bits 12 and 5 (bits 12 and 5 set) have failed in the lower 16 bits. The BIOS also sends the bitmap to the port80 LED display. It first displays the check point code, followed by a delay, the high-order byte, another delay, and then the low-order byte of the error. It repeats this sequence continuously.

KU440EX Motherboard Technical Product Specification

5.3 BIOS Beep Codes

Whenever a recoverable error occurs during Power-On Self Test (POST), the BIOS displays an error message describing the problem. The BIOS also issues a beep code (one long tone followed by two short tones) during POST if the video configuration fails (no card installed or faulty) or if an external ROM module does not properly checksum to zero.

An external ROM module (such as video BIOS) can also issue audible errors, usually consisting of one long tone followed by a series of short tones. For more information on the beep codes issued, check the documentation for that external device.

There are several POST routines that issue a POST Terminal Error and shut down the system if they fail. Before shutting down the system, the terminal-error handler issues a beep code signifying the test point error, writes the error to I/O port 80h, attempts to initialize the video, and writes the error in the upper left corner of the screen (using both monochrome and color adapters).

If POST completes normally, the BIOS issues one short beep before passing control to the operating system.

Table 58. Beep Codes

Beeps Port 80h Code Explanation

1-2-2-3 16h BIOS ROM checksum 1-3-1-1 20h Test DRAM refresh 1-3-1-3 22h Test keyboard controller 1-3-3-1 28h Autosize DRAM 1-3-3-2 29h Initialize POST memory manager 1-3-3-3 2Ah Clear 512 KB base RAM 1-3-4-1 2Ch RAM failure on address line xxxx 1-3-4-3 2Eh RAM failure on data bits xxxx of low byte of memory bus 1-4-1-1 30h RAM failure on data bits xxxx of high byte of memory bus 2-1-2-2 45h POST device initialization 2-1-2-3 46h Check ROM copyright notice 2-2-3-1 58h Test for unexpected interrupts 2-2-4-1 5Ch Test RAM between 512 and 640 KB

1-2 98h Search for option ROMs. One long, two short beeps on checksum failure

6 Specifications and Customer Support

6.1 Online Support

Find information about Intel boards under “Product Info” or “Customer Support” at this World Wide Web site:

http://www.intel.com/

6.2 Specifications

The motherboard complies with the following specifications:

Table 59. Compliance with Specifications

Specification Description Revision Level

A.G.P. Accelerated Graphics Port

Interface Specification

APM Advanced Power Management

BIOS interface specification

ACPI Advanced Configuration and

Power Interface specification

ATA-3 Information Technology - AT

Attachment-3 Interface

ATAPI ATA Packet Interface for CD-

ROMs

Revision 1.0, July, 1996, Intel Corporation. The specification is available through the Accelerated Graphics Implementers Forum at: http://www.agpforum.org/.

Revision 1.2, February, 1996 Intel Corporation, Microsoft Corporation

Revision 1.0, December 22, 1996 Intel Corporation, Microsoft Corporation, and Toshiba Corporation

X3T10/2008D Revision 6 ATA Anonymous FTP Site: fission.dt.wdc.com

SFF-8020i Revision 2.5 (SFF) Fax Access: (408) 741-1600

NLX NLX form factor specification Revision 2.01, February 1997

Intel Corporation, The specification is available at: http://www.intel.com/

NLX NLX form factor specification Version 1.0, December, 1997

Intel Corporation

SMBIOS SMBIOS specification Version 2.1 - 16 June 1997

Award Software International Inc., Dell Computer Corporation, Hewlett-Packard Company, Intel Corporation, International Business Machines Corporation, Phoenix Technologies Limited, SystemSoft Corporation.

El Torito Bootable CD-ROM format

specification

Version 1.0, January 25, 1995 Phoenix Technologies Ltd., IBM Corporation. The El Torito specification is available on the Phoenix Web site http://www.ptltd.com/techs/specs.html.

continued

KU440EX Motherboard Technical Product Specification

Table 59. Compliance with Specifications

Specification Description Revision Level

EPP Enhanced Parallel Port IEEE 1284 standard, Mode [1 or 2], v1.7 IrDA Serial Infrared Physical Layer

Link specification

PCI PCI Local Bus specification Revision 2.1, June 1, 1995, PCI Special Interest Group

Phoenix BIOS Phoenix BIOS Revision 4.0, February 27, 1997,

Plug and Play Plug and Play BIOS

specification

SDRAM DIMMs (64-bit)

USB Universal serial bus

PC SDRAM Unbuffered DIMM specification

specification

(continued)

Version 1.1, October 17, 1995 Infrared Data Association.

http://www.pcisig.com

Phoenix Technologies Ltd. Version 1.0a, May 5, 1994

Compaq Computer Corporation, Phoenix Technologies Ltd., Intel Corporation

Revision 0.9, October 22, 1997, Intel Corporation

Revision 1.0, January 15, 1996 Compaq Computer Corporation, Digital Equipment Corporation, IBM PC Company, Intel Corporation, Microsoft Corporation, NEC, Northern Telecom

Intel KU440EX User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

Contents

1 Motherboard Description

1.1 Overview

1.2 Manufacturing Options

1.3 Motherboard Components

1.4 Form Factor

1.5 I/O Shield

1.6 Microprocessor

1.6.1 Microprocessor Packaging

1.6.2 Second Level Cache

1.6.3 Microprocessor Upgrades

1.7 Main Memory

1.8 Chipset

1.9 I/O Interface Controller

1.9.1 Serial Ports

1.9.2 Infrared Support

1.9.3 Parallel Port

1.9.4 Diskette Drive Controller

1.9.5 PS/2 Keyboard and Mouse Interface

1.10 Audio Subsystem

1.10.1 Crystal Semiconductor CS4235 Audio Codec

1.10.2 Audio Connectors

1.10.3 Audio Drivers and Utilities

1.11 Graphics Subsystem

1.11.1 ATI Rage IIC Controller

1.11.2 ATI Rage Pro 1X AGP (Optional)

1.12 LAN Subsystem

1.12.1 Intel® 82558 LAN Controller

1.13 Wake on LAN Technology

1.14 Hardware Monitor Subsystem

1.15 Fan Speed Control

1.15.1 Fan Header

1.15.2 Fan Control Signal on the Riser

1.15.3 System Management Support

1.16 Motherboard Connectors

1.16.2 Back Panel Connectors

1.17 NLX Card Edge Connector

1.18 Jumper Settings

1.19 Reliability

1.20 Environmental Specifications

1.21 Power Consumption

1.22 Thermal Considerations

1.23 Regulatory Compliance

2 Motherboard Resources

2.1 Memory Map

2.2 DMA Channels

2.3 I/O Map

2.4 PCI Configuration Space Map

2.5 Interrupts

2.6 PCI Interrupt Routing Map

3 Overview of BIOS Features

3.1 BIOS Upgrades

3.2 BIOS Flash Memory Organization

3.3 Plug and Play: PCI Autoconfiguration

3.4 PCI IDE Support

3.5 ISA Plug and Play

3.6 ISA Legacy Devices

3.7 System Management BIOS (SMBIOS)

3.8 Advanced Power Management (APM)

3.9 Advanced Configuration and Power Interface (ACPI)

3.9.1 System States and Power States

3.9.2 Wake Up Devices and Events

3.9.3 Plug and Play

3.9.4 BIOS Support

3.10 Language Support

3.11 Boot Options

3.12 OEM Logo or Scan Area

3.13 USB Legacy Support

3.14 BIOS Setup Access

3.15 Recovering BIOS Data

4 BIOS Setup Program

4.1 Maintenance Menu

4.2 Main Menu

4.3 Advanced Menu

4.3.1 Peripheral Configuration Submenu

4.3.2 IDE Configuration