Intel D845EPI Specification
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Intel D845EPI Specification

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The Intel
Desktop Board D845EPI may contain design defects or errors known as errata that may cause the product to deviate from published specifications. Current characterized
errata are documented in the Intel Desktop Board D845EPI Specification Update.
Intel
Desktop Board D845EPI
®
Technical Product Specification
July 2003
Order Number: C46810-001

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  • Page 1 Order Number: C46810-001 ® The Intel Desktop Board D845EPI may contain design defects or errors known as errata that may cause the product to deviate from published specifications. Current characterized errata are documented in the Intel Desktop Board D845EPI Specification Update.

  • Page 2: Revision History

    Intel products are not intended for use in medical, life saving, or life sustaining applications or for any other application in which the failure of the Intel product could create a situation where personal injury or death may occur.

  • Page 3: Intended Audience

    Intended Audience The TPS is intended to provide detailed, technical information about the Desktop Board D845EPI and their components to the vendors, system integrators, and other engineers and technicians who need this level of information. It is specifically not intended for general audiences.
  • Page 4 When used in the description of a component, N indicates component type, xn are the relative coordinates of its location on the Desktop Board D845EPI, and X is the instance of the particular part at that general location. For example, J5J1 is a connector, located at 5J. It is the first connector in the 5J area.

  • Page 5: Table Of Contents

    1.1.3 Board Layout....................14 Block Diagram ......................15 Online Support ......................16 Operating System Support ..................16 Design Specifications ....................17 Processor ........................20 System Memory ......................21 ® Intel 845E Chipset ....................23 1.8.1 AGP ......................23 1.8.2 USB......................24 1.8.3 IDE Interfaces ....................24 1.8.4 Real-Time Clock, CMOS SRAM, and Battery..........25 I/O Controller ......................26...
  • Page 6 Intel Desktop Board D845EPI Technical Product Specification PCI Interrupt Routing Map ..................41 Connectors .........................43 2.8.1 Back Panel Connectors................44 2.8.2 Internal I/O Connectors ................45 2.8.3 External I/O Connectors ................50 Jumper Blocks......................54 2.9.1 Front Panel Audio Connector/Jumper Block..........54 2.9.2 BIOS Setup Configuration Jumper Block............55 2.10 Mechanical Considerations..................56...
  • Page 7 BIOS Beep Codes ....................104 Figures Desktop Board D845EPI Components................14 Block Diagram ......................15 Location of the Standby Power Indicator LED on the D845EPI Board ......35 Back Panel Connectors ....................44 Audio, Power, and Hardware Control Connectors ............46 Add-in Board and Peripheral Interface Connectors.............49 External I/O Connectors .....................50...
  • Page 8 Intel Desktop Board D845EPI Technical Product Specification Tables Feature Summary.......................12 Manufacturing Options ....................13 Specifications ......................17 Supported System Bus Frequency and Memory Speed Combinations.......21 Supported DDR DIMM Configurations ................22 LAN Connector LED States ..................28 Effects of Pressing the Power Switch .................30 Power States and Targeted System Power ..............31...
  • Page 9 Contents Boot Configuration Submenu..................78 Peripheral Configuration Submenu................79 IDE Configuration Submenu ..................81 Primary/Secondary IDE Master/Slave Submenus............82 Diskette Configuration Submenu ................84 Event Log Configuration Submenu ................85 Video Configuration Submenu ..................86 USB Configuration Submenu..................87 Chipset Configuration Submenu .................88 Security Menu ......................90 Power Menu .......................91 ACPI Submenu......................91 Boot Menu ........................92 Boot Device Priority Submenu ..................93...
  • Page 10 Intel Desktop Board D845EPI Technical Product Specification...

  • Page 11: Product Description

    Online Support ......................16 Operating System Support ..................16 Design Specifications ....................17 Processor ........................20 System Memory ......................21 ® Intel 845E Chipset ....................23 I/O Controller ......................26 1.10 Audio Subsystem......................27 1.11 LAN Subsystem (Optional) ..................28 1.12 Hardware Management Subsystem (Optional) ............29 1.13 Power Management ....................30...

  • Page 12: Overview

    Intel Desktop Board D845EPI Technical Product Specification 1.1 Overview 1.1.1 Feature Summary ® Table 1 summarizes the major features of the Intel Desktop Board D845EPI. Table 1. Feature Summary Form Factor microATX (9.20 inches by 8.20 inches [233.68 millimeters by 208.28 millimeters]) •...

  • Page 13: Manufacturing Options

    Product Description 1.1.2 Manufacturing Options Table 2 describes the manufacturing options on the Desktop Board D845EPI. Not every manufacturing option is available in all marketing channels. Please contact your Intel representative to determine which manufacturing options are available to you.

  • Page 14: Board Layout

    Intel Desktop Board D845EPI Technical Product Specification 1.1.3 Board Layout Figure 1 shows the location of the major components on the Desktop Board D845EPI. OM16243 Audio codec IDE connectors Intel 82562ET 10/100 Mbit/sec (PLC) device Speaker (optional) ATAPI CD-ROM connector...

  • Page 15: Block Diagram

    Processor Socket (400/533 MHz) Intel 82801DB 4 Mbit Intel 82845E I/O Controller Hub Firmware Hub Memory Controller (ICH4) (FWH) Hub (MCH) Intel 845E Chipset CSMA/CD Unit Interface Interface 4X AGP Connector (1.5 V only) Memory Bus Physical DIMM Banks (2) Layer...

  • Page 16: Online Support

    Audio software and utilities http://www.intel.com/design/motherbd LAN software and drivers http://www.intel.com/design/motherbd 1.4 Operating System Support The Desktop Board D845EPI supports drivers for all of the onboard hardware and subsystems under the following operating systems: • † Windows • Windows ME •...

  • Page 17: Design Specifications

    Product Description 1.5 Design Specifications Table 3 lists the specifications applicable to the Desktop Board D845EPI. Table 3. Specifications Reference Specification Version, Revision Date, The information is Name Title and Ownership available from… AC ’97 Audio Codec ’97 Revision 2.2, ftp://download.intel.com/labs/...
  • Page 18 Intel Desktop Board D845EPI Technical Product Specification Table 3. Specifications (continued) Reference Specification Version, Revision Date and The information is Name Title Ownership available from… EHCI Enhanced Host Revision 1.0, http://developer.intel.com/t Controller Interface March 12, 2002, echnology/usb/download/e Specification for Intel Corporation.
  • Page 19 March 16, 1999, ad/standards/DSP0119.pdf American Megatrends Incorporated, Award Software International Incorporated, Compaq Computer Corporation, Dell Computer Corporation, Hewlett-Packard Company, Intel Corporation, International Business Machines Corporation, Phoenix Technologies Limited, and SystemSoft Corporation. TFX12V TFX12V Power Supply Revision 1.01, http://www.formfactors.org/ Design Guide...

  • Page 20: Processor

    1.6 Processor The board is designed to support the following: • Intel Pentium 4 processors in an mPGA478 processor socket with a 533/400 MHz system bus • Intel Celeron processors in an mPGA478 processor socket with a 400 MHz system bus See the Intel web site listed below for the most up-to-date list of supported processors.

  • Page 21: System Memory

    Product Description 1.7 System Memory The Desktop Board D845EPI has two DIMM sockets and supports the following memory features: • 2.5 V (only) 184-pin DDR SDRAM DIMMs with gold-plated contacts • Unbuffered single-sided or double-sided DIMMs • Maximum total system memory: 2 GB; minimum total system memory: 64 MB •...

  • Page 22: Supported Ddr Dimm Configurations

    Intel Desktop Board D845EPI Technical Product Specification Table 5 lists the supported DDR DIMM configurations. Table 5. Supported DDR DIMM Configurations DIMM Configuration DDR SDRAM DDR SDRAM Organization Number of DDR (Note) Capacity Density Front-side/Back-side SDRAM Devices 64 MB 64 Mbit...

  • Page 23: Intel ® 845E Chipset

    1.8 Intel ® 845E Chipset The Intel 845E chipset consists of the following devices: • Intel 82845E Memory Controller Hub (MCH) with Accelerated Hub Architecture (AHA) bus • Intel 82801DB I/O Controller Hub (ICH4) with AHA bus • Firmware Hub (FWH) The MCH is a centralized controller for the system bus, the memory bus, the AGP bus, and the Accelerated Hub Architecture interface.

  • Page 24: Usb

    Intel Desktop Board D845EPI Technical Product Specification 1.8.2 USB The board supports up to six USB 2.0 ports, fully supports UHCI and EHCI, and uses UHCI- and EHCI-compatible drivers. For more than six USB devices, an external hub can be connected to any of the ports.

  • Page 25: Real-Time Clock, Cmos Sram, And Battery

    Product Description INTEGRATOR’S NOTE ATA-66 and ATA-100 are faster timings and require a specialized cable to reduce reflections, noise, and inductive coupling. The IDE interfaces also support ATAPI devices (such as CD-ROM drives) and ATA devices. The BIOS supports 48-bit Logical Block Addressing (LBA) and Extended Cylinder Head Sector (ECHS) translation modes.

  • Page 26: I/O Controller

    Intel Desktop Board D845EPI Technical Product Specification 1.9 I/O Controller The SMSC LPC47M172 I/O or National Semiconductor PC87372 controller provides the following features: • One serial port • One parallel port with Extended Capabilities Port (ECP) and Enhanced Parallel Port (EPP) support •...

  • Page 27: Audio Subsystem

    Product Description 1.10 Audio Subsystem The audio subsystem consists of the following devices: • Intel 82801DB I/O Controller Hub (ICH4) • Realtek ALC202A audio codec The audio subsystem includes these features: • Signal-to-noise ratio ≥ 90 dB • Supports wake events (driver dependent) •...

  • Page 28: Audio Subsystem Software

     Supports LAN wake capabilities ® 1.11.1 Intel 82562ET Platform LAN Connect Device The Intel 82562ET component provides an interface to the back panel RJ-45 connector with integrated LEDs. The Intel 82562ET provides the following functions: • Basic 10/100 Ethernet LAN connectivity •...

  • Page 29: Lan Subsystem Software

    Product Description 1.11.3 LAN Subsystem Software LAN software and drivers are available from Intel’s World Wide Web site. For information about Refer to Obtaining LAN software and drivers Section 1.3, page 16 1.12 Hardware Management Subsystem (Optional) The hardware management features enable the boards to be compatible with the Wired for Management (WfM) specification.

  • Page 30: Power Management

    Intel Desktop Board D845EPI Technical Product Specification 1.13 Power Management Power management is implemented at several levels, including: • Software support through Advanced Configuration and Power Interface (ACPI) • Hardware support:  Power connector  Fan connectors  LAN wake capabilities ...

  • Page 31: Power States And Targeted System Power

    The operating system uses information from applications and user settings to put the system as a whole into a low-power state. Table 8 lists the power states supported by the Desktop Board D845EPI along with the associated system power targets. See the ACPI specification for a complete description of the various system and power states.

  • Page 32: Hardware Support

    Instantly Available PC technology features are used. Failure to do so can damage the power supply. The total amount of standby current required depends on the wake devices supported and manufacturing options. The Desktop Board D845EPI provides several power management hardware features, including: • Power connector •...

  • Page 33: Fan Connector Function/Operation

    Product Description Resume on Ring enables telephony devices to access the computer when it is in a power-managed state. The method used depends on the type of telephony device (external or internal). ✏ NOTE The use of Resume on Ring and Wake from USB technologies from an ACPI state requires an operating system that provides full ACPI support.
  • Page 34 Intel Desktop Board D845EPI Technical Product Specification 1.13.2.3 LAN Wake Capabilities CAUTION For LAN wake capabilities, the +5 V standby line for the power supply must be capable of providing adequate +5 V standby current. Failure to provide adequate standby current when implementing LAN wake capabilities can damage the power supply.

  • Page 35: Location Of The Standby Power Indicator Led On The D845Epi Board

    Product Description CR1F1 OM16244 Figure 3. Location of the Standby Power Indicator LED on the D845EPI Board 1.13.2.6 Resume on Ring The operation of Resume on Ring can be summarized as follows: • Resumes operation from ACPI S1 or S3 states •...
  • Page 36 Intel Desktop Board D845EPI Technical Product Specification...

  • Page 37: Technical Reference

    2 Technical Reference What This Chapter Contains Introduction.........................37 Memory Map ......................37 Fixed I/O Map......................38 DMA Channels ......................39 PCI Configuration Space Map ..................39 Interrupts ........................40 PCI Interrupt Routing Map ..................41 Connectors .........................43 Jumper Blocks......................54 2.10 Mechanical Considerations..................56 2.11 Electrical Considerations ....................58 2.12 Thermal Considerations....................59 2.13 Reliability ........................61 2.14 Environmental ......................61...

  • Page 38: Fixed I/O Map

    I/O Map Address (hex) Size Description 0000 - 00FF 256 bytes Used by the Desktop Board D845EPI. Refer to the ICH4 data sheet for dynamic addressing information. 0170 - 0177 8 bytes Secondary IDE channel 01F0 - 01F7 8 bytes...

  • Page 39: Dma Channels

    Number (hex) Description Memory controller of Intel 82845E component Host to AGP bridge (virtual P2P) Hub link to PCI bridge Intel 82801DB ICH4 PCI to LPC bridge IDE controller SMBus controller AC ’97 audio controller AC ’97 modem controller (optional)

  • Page 40: Interrupts

    Intel Desktop Board D845EPI Technical Product Specification 2.6 Interrupts The interrupts can be routed through either the Programmable Interrupt Controller (PIC) or the Advanced Programmable Interrupt Controller (APIC) portion of the ICH4 component. The PIC is supported in Windows 98 SE and Windows ME and uses the first 16 interrupts. The APIC is supported in Windows 2000 and Windows XP and supports a total of 24 interrupts.

  • Page 41: Pci Interrupt Routing Map

    PCI add-in card connect to one of these PIRQ signals. Some PCI interrupt sources are electrically tied together on the Desktop Board D845EPI and therefore share the same interrupt. Table 16 shows an example of how the PIRQ signals are routed.

  • Page 42: Pci Interrupt Routing Map

    Intel Desktop Board D845EPI Technical Product Specification Table 16. PCI Interrupt Routing Map ICH4 PIRQ Signal Name PCI Interrupt Source PIRQA PIRQB PIRQC PIRQD PIRQE PIRQF PIRQG PIRQH AGP connector INTA INTB ICH4 USB UHCI controller 1 INTA SMBus controller...

  • Page 43: Connectors

    Technical Reference 2.8 Connectors CAUTION Only the back panel USB, front panel USB, VGA, and PS/2 connectors have overcurrent protection. The Desktop Boards’ internal connectors are not overcurrent protected and should connect only to devices inside the computer’s chassis, such as fans and internal peripherals. Do not use these connectors to power devices external to the computer’s chassis.

  • Page 44: Back Panel Connectors

    Intel Desktop Board D845EPI Technical Product Specification 2.8.1 Back Panel Connectors Figure 4 shows the location of the back panel connectors. The back panel connectors are color-coded in compliance with PC 99 recommendations. The figure legend below lists the colors used.

  • Page 45: Internal I/O Connectors

    Technical Reference INTEGRATOR’S NOTE The back panel audio line out connector is designed to power headphones or amplified speakers only. Poor audio quality occurs if passive (non-amplified) speakers are connected to this output. 2.8.2 Internal I/O Connectors The internal I/O connectors are divided into the following functional groups: •...

  • Page 46: Audio, Power, And Hardware Control Connectors

    Intel Desktop Board D845EPI Technical Product Specification 2.8.2.2 Audio, Power, and Hardware Control Connectors Figure 5 shows the location of the audio, power, and hardware control connectors. OM16246 Item Description For more information see: Front panel audio Table 17 ATAPI CD-ROM (black)

  • Page 47: Front Panel Audio Connector

    Technical Reference Table 17. Front Panel Audio Connector Signal Name Signal Name MIC_IN Ground MIC_BIAS +5 V RIGHT_OUT RIGHT_IN No connect LEFT_OUT LEFT_IN Table 18. ATAPI CD-ROM Connector Signal Name Left audio input from CD-ROM CD audio differential ground CD audio differential ground Right audio input from CD-ROM INTEGRATOR’S NOTES •...

  • Page 48: Rear Chassis Fan Connector

    Intel Desktop Board D845EPI Technical Product Specification Table 20. Rear Chassis Fan Connector Signal Name Ground (default) or FNT_REAR_FAN_CTRL (optional) +12 V No connect (default) or REAR_TACH_OUT (optional) Table 21. Processor Fan Connector Signal Name Ground (default) or CPU_FAN_TACH (optional)

  • Page 49: Add-In Board And Peripheral Interface Connectors

    Add-in Board and Peripheral Interface Connectors Figure 6 shows the location of the add-in board connector and peripheral connectors for the Desktop Board D845EPI. Note the following considerations for the PCI bus connectors: • All of the PCI bus connectors are bus master capable.

  • Page 50: External I/O Connectors

    Intel Desktop Board D845EPI Technical Product Specification 2.8.3 External I/O Connectors Figure 7 shows the locations of the external I/O connectors. OM16248 Item Description For more information see: Serial Port B (optional) Table 25 Auxiliary front panel power/sleep/message-waiting LED Table 26...

  • Page 51: Connection Diagram For Front Panel Connector

    Technical Reference 2.8.3.1 Auxiliary Front Panel Power/Sleep/Message-Waiting LED Connector Pins 1 and 3 of this connector duplicate the signals on pins 2 and 4 of the front panel connector. Table 26 lists the signal names of the Auxiliary Front Panel Power/Sleep/Message-Waiting LED connector.

  • Page 52: States For A One-Color Power Led

    SW_ON# pin to ground for at least 50 ms to signal the power supply to switch on or off. (The time requirement is due to internal debounce circuitry on the Desktop Board D845EPI.) At least two seconds must pass before the power supply will recognize another on/off signal.

  • Page 53: Connection Diagram For Front Panel Usb Connector

    Technical Reference 2.8.3.3 Front Panel USB Connector Figure 9 is a connection diagram for the front panel USB connector. INTEGRATOR’S NOTES • The +5 V DC power on the USB connector is fused. • Pins 1, 3, 5, and 7 comprise one USB port. •...

  • Page 54: Jumper Blocks

    Intel Desktop Board D845EPI Technical Product Specification 2.9 Jumper Blocks CAUTION Do not move any jumpers with the power on. Always turn off the power and unplug the power cord from the computer before changing a jumper setting. Otherwise, the Desktop Board could be damaged.

  • Page 55: Bios Setup Configuration Jumper Block

    Technical Reference CAUTION Do not place jumpers on this block in any configuration other than the one described in Table 30. Other jumper configurations are not supported and could damage the Desktop Board. Table 30. Front Panel Audio Connector/Jumper Block Jumper Setting Configuration 1 and 2...

  • Page 56: Mechanical Considerations

    Intel Desktop Board D845EPI Technical Product Specification 2.10 Mechanical Considerations The Desktop Board D845EPI is designed to fit into either a microATX or an ATX-form-factor chassis. Figure 11 illustrates the mechanical form factor for the Desktop Board. Dimensions are given in inches [millimeters]. The outer dimensions are 9.20 inches by 8.20 inches [233.68 millimeters by 208.28 millimeters].

  • Page 57: I/O Shield

    Technical Reference 2.10.1 I/O Shield The back panel I/O shield for the Desktop Board D845EPI must meet specific dimension and material requirements. Systems based on this Desktop Board need the back panel I/O shield to pass emissions (EMI) certification testing. Figure 12 shows the critical dimensions of the I/O shield.

  • Page 58: Electrical Considerations

    1.40 A 2.11.2 Add-in Board Considerations The Desktop Board D845EPI is designed to provide 2 A (average) of +5 V current for each add-in board. The total +5 V current draw for add-in boards for a fully loaded Desktop Board D845EPI (all four expansion slots filled) must not exceed 8 A.

  • Page 59: Power Supply Considerations

    System integrators should refer to the power usage values listed in Table 32 when selecting a power supply for use with the Desktop Board D845EPI. Additional power required will depend on configurations chosen by the integrator.

  • Page 60: Localized High Temperature Zones

    Intel 82801DB ICH4 Figure 13. Localized High Temperature Zones Table 34 provides maximum case temperatures for Desktop Board D845EPI components that are sensitive to thermal changes. The operating temperature, current load, or operating frequency could affect case temperatures. Maximum case temperatures are important when considering proper airflow to cool the Desktop Board D845EPI.

  • Page 61: Reliability

    Procedure, TR-NWT-000332, Issue 4, September 1991. The MTBF prediction is used to estimate repair rates and spare parts requirements. The MTBF data is calculated from predicted data at 55 ºC. The Desktop Board D845EPI MTBF is 131566.83 hours. 2.14 Environmental Table 35 lists the environmental specifications for the Desktop Board D845EPI.

  • Page 62: Regulatory Compliance

    This section describes the Desktop Boards’ compliance with U.S. and international safety and electromagnetic compatibility (EMC) regulations. 2.15.1 Safety Regulations Table 36 lists the safety regulations the Desktop Board D845EPI complies with when correctly installed in a compatible host system. Table 36.

  • Page 63: European Union Declaration Of Conformity Statement

    Connect the equipment to a different electrical branch circuit from that to which the receiver is connected. • Consult the dealer or an experienced radio/TV technician for help. Any changes or modifications to the equipment not expressly approved by Intel Corporation could void the user’s authority to operate the equipment. 2.15.2.2 Canadian Compliance Statement This Class B digital apparatus complies with Canadian ICES-003.

  • Page 64: Product Ecology Statements

    2.15.4.2 Recycling Considerations Intel encourages its customers to recycle its products and their components (e.g., batteries, circuit boards, plastic enclosures, etc.) whenever possible. In the U.S., a list of recyclers in your area can be found at: http://www.eiae.org...

  • Page 65: Overview Of Bios Features

    3.10 BIOS Security Features....................72 3.1 Introduction The Desktop Board D845EPI uses an Intel/AMI BIOS that is stored in the Firmware Hub (FWH) and can be updated using a disk-based program. The FWH contains the BIOS Setup program, POST, the PCI auto-configuration utility, and Plug and Play support.

  • Page 66: Bios Flash Memory Organization

    Intel Desktop Board D845EPI Technical Product Specification 3.2 BIOS Flash Memory Organization The Firmware Hub (FWH) includes a 4 Mbit (512 KB) symmetrical flash memory device. Internally, the device is grouped into eight 64-KB blocks that are individually erasable, lockable, and unlockable.

  • Page 67: System Management Bios (Smbios)

    Overview of BIOS Features 3.4 System Management BIOS (SMBIOS) SMBIOS is a Desktop Management Interface (DMI) compliant method for managing computers in a managed network. 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.

  • Page 68: Bios Updates

    Legacy USB support is for keyboards, mice, and hubs only. Other USB devices are not supported in legacy mode. 3.6 BIOS Updates The BIOS can be updated using either of the following utilities, which are available on the Intel World Wide Web site: •...

  • Page 69: Language Support

    During POST, an Intel splash screen is displayed by default. This splash screen can be replaced with a custom splash screen. A utility is available from Intel to assist with creating a custom splash screen. The custom splash screen can be programmed into the flash memory using the BIOS upgrade utility.

  • Page 70: Boot Options

    Intel Desktop Board D845EPI Technical Product Specification 3.8 Boot Options In the BIOS Setup program, the user can choose to boot from a diskette drive, hard drives, CD-ROM, or the network. The default setting is for the diskette drive to be the first boot device, the hard drive second, and the ATAPI CD-ROM third.

  • Page 71: Fast Booting Systems With Intel ® Rapid Bios Boot

    It is possible to optimize the boot process to the point where the system boots so quickly that the Intel logo screen (or a custom logo splash screen) will not be seen. Monitors and hard disk drives with minimum initialization times can also contribute to a boot time that might be so fast that necessary logo screens and POST messages cannot be seen.

  • Page 72: Bios Security Features

    Intel Desktop Board D845EPI Technical Product Specification 3.10 BIOS Security Features The BIOS includes security features that restrict access to the BIOS Setup program and who can boot the computer. A supervisor password and a user password can be set for the BIOS Setup program and for booting the computer, with the following restrictions: •...

  • Page 73: Bios Setup Program

    4 BIOS Setup Program What This Chapter Contains Introduction.........................73 Maintenance Menu .....................74 Main Menu........................75 Advanced Menu......................76 Security Menu ......................90 Power Menu .......................91 Boot Menu ........................92 Exit Menu ........................96 4.1 Introduction The BIOS Setup program can be used to view and change the BIOS settings for the computer. The BIOS Setup program is accessed by pressing the <F2>...

  • Page 74: Maintenance Menu

    Intel Desktop Board D845EPI Technical Product Specification Table 42 lists the function keys available for menu screens. Table 42. BIOS Setup Program Function Keys BIOS Setup Program Function Key Description <←> or <→> Selects a different menu screen (Moves the cursor left or right) <↑>...

  • Page 75: Main Menu

    BIOS Setup Program 4.3 Main Menu To access this menu, select Main on the menu bar at the top of the screen. Maintenance Advanced Security Power Boot Exit Main Table 44 describes the Main menu. This menu reports processor and memory information and is for configuring the system date and system time.

  • Page 76: Advanced Menu

    Intel Desktop Board D845EPI Technical Product Specification 4.4 Advanced Menu To access this menu, select Advanced on the menu bar at the top of the screen. Maintenance Main Security Power Boot Exit Advanced PCI Configuration Boot Configuration Peripheral Configuration IDE Configuration...

  • Page 77: Pci Configuration Submenu

    BIOS Setup Program 4.4.1 PCI Configuration Submenu To access this submenu, select Advanced on the menu bar and then PCI Configuration. Maintenance Main Security Power Boot Exit Advanced PCI Configuration Boot Configuration Peripheral Configuration IDE Configuration Diskette Configuration Event Log Configuration Video Configuration USB Configuration Chipset Configuration...

  • Page 78: Boot Configuration Submenu

    Intel Desktop Board D845EPI Technical Product Specification 4.4.2 Boot Configuration Submenu To access this submenu, select Advanced on the menu bar and then Boot Configuration. Maintenance Main Security Power Boot Exit Advanced PCI Configuration Boot Configuration Peripheral Configuration IDE Configuration...

  • Page 79: Peripheral Configuration Submenu

    BIOS Setup Program 4.4.3 Peripheral Configuration Submenu To access this submenu, select Advanced on the menu bar and then Peripheral Configuration. Maintenance Main Security Power Boot Exit Advanced PCI Configuration Boot Configuration Peripheral Configuration IDE Configuration Diskette Configuration Event Log Configuration Video Configuration USB Configuration Chipset Configuration...
  • Page 80 Intel Desktop Board D845EPI Technical Product Specification Table 48. Peripheral Configuration Submenu (continued) Feature Options Description • 378 (default) Base I/O address Specifies the base I/O address for the parallel port. (This feature is present • 278 only when Parallel Port is set to Enabled) •...

  • Page 81: Ide Configuration Submenu

    BIOS Setup Program 4.4.4 IDE Configuration Submenu To access this submenu, select Advanced on the menu bar and then IDE Configuration. Maintenance Main Security Power Boot Exit Advanced PCI Configuration Boot Configuration Peripheral Configuration IDE Configuration Diskette Configuration Event Log Configuration Video Configuration USB Configuration Chipset Configuration...

  • Page 82: Primary/Secondary Ide Master/Slave Submenus

    Intel Desktop Board D845EPI Technical Product Specification 4.4.4.1 Primary/Secondary IDE Master/Slave Submenus To access these submenus, select Advanced on the menu bar, then IDE Configuration, and then the master or slave to be configured. Maintenance Main Security Power Boot Exit...
  • Page 83 BIOS Setup Program Table 50. Primary/Secondary IDE Master/Slave Submenus (continued) Feature Options Description • Disabled Block Mode Disabled = Data transfers to/from the device occur one sector at a time. • Auto (default) Auto = Data transfers to/from the device occur multiple sectors at a time if the device supports block mode transfers.

  • Page 84: Diskette Configuration Submenu

    Intel Desktop Board D845EPI Technical Product Specification 4.4.5 Diskette Configuration Submenu To access this menu, select Advanced on the menu bar and then Diskette Configuration. Maintenance Main Security Power Boot Exit Advanced PCI Configuration Boot Configuration Peripheral Configuration IDE Configuration...

  • Page 85: Event Log Configuration Submenu

    BIOS Setup Program 4.4.6 Event Log Configuration Submenu To access this menu, select Advanced on the menu bar and then Event Log Configuration. Maintenance Main Security Power Boot Exit Advanced PCI Configuration Boot Configuration Peripheral Configuration IDE Configuration Diskette Configuration Event Log Configuration Video Configuration USB Configuration...

  • Page 86: Video Configuration Submenu

    Intel Desktop Board D845EPI Technical Product Specification 4.4.7 Video Configuration Submenu To access this menu, select Advanced on the menu bar and then Video Configuration. Maintenance Main Security Power Boot Exit Advanced PCI Configuration Boot Configuration Peripheral Configuration IDE Configuration...

  • Page 87: Usb Configuration Submenu

    BIOS Setup Program 4.4.8 USB Configuration Submenu To access this menu, select Advanced on the menu bar and then USB Configuration. Maintenance Main Security Power Boot Exit Advanced PCI Configuration Boot Configuration Peripheral Configuration IDE Configuration Diskette Configuration Event Log Configuration Video Configuration USB Configuration Chipset Configuration...

  • Page 88: Chipset Configuration Submenu

    Intel Desktop Board D845EPI Technical Product Specification 4.4.9 Chipset Configuration Submenu To access this menu, select Advanced on the menu bar and then Chipset Configuration. Maintenance Main Security Power Boot Exit Advanced PCI Configuration Boot Configuration Peripheral Configuration IDE Configuration...
  • Page 89 BIOS Setup Program Table 55. Chipset Configuration Submenu (continued) Feature Options Description • Auto (default) SDRAM Timing Control Auto = Timings will be programmed according to the memory detected. • Manual – Aggressive Manual – Aggressive = Selects most aggressive •...

  • Page 90: Security Menu

    Intel Desktop Board D845EPI Technical Product Specification 4.5 Security Menu To access this menu, select Security from the menu bar at the top of the screen. Maintenance Main Advanced Power Boot Exit Security The menu represented by Table 56 is for setting passwords and security features.

  • Page 91: Power Menu

    BIOS Setup Program 4.6 Power Menu To access this menu, select Power from the menu bar at the top of the screen. Maintenance Main Advanced Security Boot Exit Power ACPI The menu represented in Table 57 is for setting the power management features. Table 57.

  • Page 92: Boot Menu

    Disables/enables PXE boot to LAN. (default) Note: When set to Enabled, you must reboot for the • Enabled Intel Boot Agent device to be available in the Boot Device menu. • Disabled USB Boot Disables/enables booting to USB boot devices.

  • Page 93: Boot Device Priority Submenu

    The default settings for the first through fourth boot devices are, respectively: • Removable Dev. • Hard Drive • ATAPI CD-ROM • Intel Boot Agent Note: The boot device identifier for Intel Boot Agent (IBA) may vary depending on the BIOS release.

  • Page 94: Hard Disk Drives Submenu

    Intel Desktop Board D845EPI Technical Product Specification 4.7.2 Hard Disk Drives Submenu To access this menu, select Boot on the menu bar and then Hard Disk Drives. Maintenance Main Advanced Security Power Exit Boot Boot Device Priority Hard Disk Drives...

  • Page 95: Atapi Cd-Rom Drives Submenu

    BIOS Setup Program 4.7.4 ATAPI CD-ROM Drives Submenu To access this menu, select Boot on the menu bar and then ATAPI CD-ROM Drives. Maintenance Main Advanced Security Power Exit Boot Boot Device Priority Hard Disk Drives Removable Devices ATAPI CD-ROM Drives The submenu represented in Table 63 is for setting ATAPI CD-ROM drive priority.

  • Page 96: Exit Menu

    Intel Desktop Board D845EPI Technical Product Specification 4.8 Exit Menu To access this menu, select Exit from the menu bar at the top of the screen. Maintenance Main Advanced Security Power Boot Exit The menu represented in Table 64 is for exiting the BIOS Setup program, saving changes, and loading and saving defaults.

  • Page 97: Error Messages And Beep Codes

    5 Error Messages and Beep Codes What This Chapter Contains BIOS Error Messages....................97 Port 80h POST Codes....................99 Bus Initialization Checkpoints ...................103 Speaker ........................104 BIOS Beep Codes ....................104 5.1 BIOS Error Messages Table 65 lists the error messages and provides a brief description of each. Table 65.
  • Page 98 Intel Desktop Board D845EPI Technical Product Specification Table 65. BIOS Error Messages (continued) Error Message Explanation Checking NVRAM..NVRAM is being checked to see if it is valid. Update OK! NVRAM was invalid and has been updated. Updated Failed NVRAM was invalid but was unable to be updated.

  • Page 99: Port 80H Post Codes

    F000:0000 in Shadow RAM and give control to recovery code in F000 Shadow RAM. Initialize interrupt vector tables, initialize system timer, initialize DMA controller and interrupt controller. Initialize extra (Intel Recovery) Module. Initialize floppy drive. Try to boot from floppy. If reading of boot sector is successful, give control to boot sector code.

  • Page 100: Runtime Code Uncompressed In F000 Shadow Ram

    Intel Desktop Board D845EPI Technical Product Specification Table 68. Runtime Code Uncompressed in F000 Shadow RAM Code Description of POST Operation NMI is Disabled. To check soft reset/power-on. BIOS stack set. Going to disable cache if any. POST code to be uncompressed.
  • Page 101 Error Messages and Beep Codes Table 68. Runtime Code Uncompressed in F000 Shadow RAM (continued) Code Description of POST Operation To prepare the descriptor tables. To enter in virtual mode for memory test. To enable interrupts for diagnostics mode. To initialize data to check memory wrap around at 0:0. Data initialized.
  • Page 102 Intel Desktop Board D845EPI Technical Product Specification Table 68. Runtime Code Uncompressed in F000 Shadow RAM (continued) Code Description of POST Operation Lock-key checking over. To check for memory size mismatch with CMOS. Memory size check done. To display soft error and check for password or bypass setup.

  • Page 103: Bus Initialization Checkpoints

    Error Messages and Beep Codes Table 68. Runtime Code Uncompressed in F000 Shadow RAM (continued) Code Description of POST Operation Uncompress SMBIOS module and init SMBIOS code and form the runtime SMBIOS image in shadow. Going to copy any code to specific area. Copying of code to specific area done.

  • Page 104: Speaker

    A 47 Ω inductive speaker provides audible error code (beep code) information during POST. For information about Refer to The location of the onboard speaker on the Desktop Board D845EPI Figure 1, on page 14 5.5 BIOS Beep Codes Whenever a recoverable error occurs during POST, the BIOS displays an error message describing the problem (see Table 72).

  • Page 105: Beep Codes

    Error Messages and Beep Codes If POST completes normally, the BIOS issues one short beep before passing control to the operating system. Table 72. Beep Codes Beep Description Refresh failure Parity cannot be reset First 64 KB memory failure Timer not operational Not used 8042 GateA20 cannot be toggled Exception interrupt error...
  • Page 106 Intel Desktop Board D845EPI Technical Product Specification...

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