Intel D845EPI Intel Desktop Board D845EPI Technical Product Specification
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- Intel D845EPI | Intel Desktop Board D845EPI Technical Product Specification - Page 1
Specification July 2003 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 - Intel D845EPI | Intel Desktop Board D845EPI Technical Product Specification - Page 2
Intel® Desktop Board D845EPI Technical Product Specification. Date July 2003 This product specification applies to only standard Intel® Desktop Board D845EPI with BIOS identifier VA84510A.86A. Changes to this specification will be published in the Intel Desktop Board D845EPI Specification Update - Intel D845EPI | Intel Desktop Board D845EPI Technical Product Specification - Page 3
Preface This Technical Product Specification (TPS) specifies the board layout, components, connectors, power and environmental requirements, and the BIOS for the Intel® Desktop Board D845EPI. It describes the standard product and available manufacturing options. Intended Audience The TPS is - Intel D845EPI | Intel Desktop Board D845EPI Technical Product Specification - Page 4
Intel Desktop Board D845EPI Technical Product Specification WARNING Warnings indicate conditions, which if , 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, - Intel D845EPI | Intel Desktop Board D845EPI Technical Product Specification - Page 5
12 1.1.2 Manufacturing Options 13 1.1.3 Board Layout 14 1.2 Block Diagram ...15 1.3 Online Support ...16 1.4 Operating System Support 16 1.5 Design Specifications 17 1.6 Processor ...20 1.7 System Memory ...21 1.8 Intel® 845E Chipset ...23 1.8.1 AGP ...23 1.8.2 USB...24 1.8.3 IDE Interfaces 24 - Intel D845EPI | Intel Desktop Board D845EPI Technical Product Specification - Page 6
Intel Desktop Board D845EPI Technical Product Specification 2.7 PCI Interrupt Routing Map 41 2.8 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 2.9 Jumper Blocks...54 2.9.1 Front Panel Audio Connector/Jumper Block 54 2.9.2 BIOS - Intel D845EPI | Intel Desktop Board D845EPI Technical Product Specification - Page 7
Checkpoints 103 5.4 Speaker ...104 5.5 BIOS Beep Codes ...104 Figures 1. Desktop Board D845EPI Components 14 2. Block Diagram ...15 3. Location of the Standby Power Indicator LED on the D845EPI Board 35 4. Back Panel Connectors 44 5. Audio, Power, and Hardware Control Connectors 46 6. Add - Intel D845EPI | Intel Desktop Board D845EPI Technical Product Specification - Page 8
Intel Desktop Board D845EPI Technical Product Specification Tables 1. Feature Summary...12 2. Manufacturing Options 13 3. Specifications ...17 4. Supported System Bus Frequency and Memory Speed Combinations 21 5. Supported DDR DIMM Configurations 22 6. LAN Connector LED States 28 7. Effects of - Intel D845EPI | Intel Desktop Board D845EPI Technical Product Specification - Page 9
Submenu 85 53. Video Configuration Submenu 86 54. USB Configuration Submenu 87 55. Chipset Configuration Submenu 88 56. Security Menu ...90 57. Power Menu ...91 58. ACPI Submenu...91 59. Boot Menu ...92 60. Boot Device Priority Submenu 93 61. Hard Disk Drives Submenu 94 62. Removable - Intel D845EPI | Intel Desktop Board D845EPI Technical Product Specification - Page 10
Intel Desktop Board D845EPI Technical Product Specification x - Intel D845EPI | Intel Desktop Board D845EPI Technical Product Specification - Page 11
Support ...16 1.4 Operating System Support 16 1.5 Design Specifications 17 1.6 Processor ...20 1.7 System Memory ...21 1.8 Intel® 845E Chipset ...23 1.9 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 - Intel D845EPI | Intel Desktop Board D845EPI Technical Product Specification - Page 12
to PCI bus connector 2) BIOS • Intel/AMI BIOS (resident in the 4 Mbit FWH) • Support for Advanced Configuration and Power Interface (ACPI), Plug and Play, and SMBIOS Instantly Available PC Technology • Support for PCI Local Bus Specification Revision 2.2 • Suspend to RAM support • Wake on PCI - Intel D845EPI | Intel Desktop Board D845EPI Technical Product Specification - Page 13
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. Table 2. Manufacturing Options LAN Intel® 82562ET 10/100 Mbit/sec - Intel D845EPI | Intel Desktop Board D845EPI Technical Product Specification - Page 14
connector U BIOS Setup configuration jumper block V 4 Mbit Firmware Hub (FWH) W Front panel connector X Front panel USB connector Y Intel 82801DB I/O Controller Hub (ICH4) Z AGP connector AA PCI bus add-in card connectors BB Front panel audio connector Figure 1. Desktop Board D845EPI Components 14 - Intel D845EPI | Intel Desktop Board D845EPI Technical Product Specification - Page 15
IDE UDMA 33 and ATA-66/100 mPGA478 Processor Socket System Bus (400/533 MHz) USB LPC Bus I/O Controller SMBus LPC Bus Back Panel / Front Panel USB Ports Serial Ports Parallel Port PS/2 Mouse PS/2 Keyboard Diskette Drive Connector Intel 82845E Memory Controller Hub (MCH) AHA Bus 4X AGP - Intel D845EPI | Intel Desktop Board D845EPI Technical Product Specification - Page 16
Board Support" Available configurations for the Desktop Board D845EPI Processor data sheets ICH4 addressing Custom splash screens Audio software and utilities LAN software and drivers Visit this World Wide Web site: http://www.intel.com/design/motherbd http://support.intel.com/support/motherboards - Intel D845EPI | Intel Desktop Board D845EPI Technical Product Specification - Page 17
Desktop Board D845EPI. Table 3. Specifications Reference Name AC '97 ACPI AGP Specification Title Audio Codec '97 Advanced Configuration and Power Interface Specification Accelerated Graphics Port Interface Specification Version, Revision Date, and Ownership Revision 2.2, September 2000, Intel - Intel D845EPI | Intel Desktop Board D845EPI Technical Product Specification - Page 18
microATX Motherboard Interface Specification PCI Local Bus Specification PCI Bus Power Management Interface Specification Plug and Play BIOS Specification Preboot Execution Environment SFX/SFX12V Power Supply Design Guide Version, Revision Date and Ownership Revision 1.0, March 12, 2002, Intel - Intel D845EPI | Intel Desktop Board D845EPI Technical Product Specification - Page 19
(continued) Reference Name SMBIOS TFX12V UHCI USB Specification Title System Management BIOS TFX12V Power Supply Design Guide Universal Host Controller Interface Design Guide Universal Serial Bus Specification Version, Revision Date and Ownership Version 2.3.1, March 16, 1999, American - Intel D845EPI | Intel Desktop Board D845EPI Technical Product Specification - Page 20
Intel Desktop Board D845EPI Technical Product Specification 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 - Intel D845EPI | Intel Desktop Board D845EPI Technical Product Specification - Page 21
retention mechanism. ✏ NOTE To be fully compliant with all applicable DDR SDRAM memory specifications, the board should be populated with DIMMs that support the Serial Presence Detect (SPD) data structure. This allows the BIOS to read the SPD data and program the chipset to accurately configure - Intel D845EPI | Intel Desktop Board D845EPI Technical Product Specification - Page 22
Intel Desktop Board D845EPI Technical Product Specification Table 5 lists the supported DDR DIMM configurations. Table 5. Supported DDR DIMM 64 M x 8 16 Note: In this column, "DS" refers to double-sided memory modules (containing DDR SDRAM devices on both sides) and "SS" refers to single-sided - Intel D845EPI | Intel Desktop Board D845EPI Technical Product Specification - Page 23
ICH4 is a centralized controller for the board's I/O paths. The FWH provides the nonvolatile storage of the BIOS. For information about The Intel 845E chipset Resources used by the chipset Refer to http://developer.intel.com/ Chapter 2 1.8.1 AGP The AGP connector supports AGP add-in cards with - Intel D845EPI | Intel Desktop Board D845EPI Technical Product Specification - Page 24
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. The ICH4 provides the USB - Intel D845EPI | Intel Desktop Board D845EPI Technical Product Specification - Page 25
the BIOS. The Desktop Boards support Laser Servo (LS-120) diskette technology through the IDE interfaces. The BIOS supports booting from an LS-120 drive. ✏ NOTE The BIOS will always recognize an LS-120 drive as an ATAPI floppy drive. To ensure correct operation, do not configure the drive as a hard - Intel D845EPI | Intel Desktop Board D845EPI Technical Product Specification - Page 26
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 • - Intel D845EPI | Intel Desktop Board D845EPI Technical Product Specification - Page 27
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) • Mic in pre - Intel D845EPI | Intel Desktop Board D845EPI Technical Product Specification - Page 28
Intel Desktop Board D845EPI Technical Product Specification 1.10.2 Audio Subsystem Software Audio software and drivers are available from Intel's World Wide Web site. For information about Obtaining audio software and drivers Refer to Section 1.3, page 16 1.11 LAN Subsystem (Optional) The - Intel D845EPI | Intel Desktop Board D845EPI Technical Product Specification - Page 29
from Intel's World Wide Web site. For information about Obtaining LAN software and drivers Refer to 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. The board - Intel D845EPI | Intel Desktop Board D845EPI Technical Product Specification - Page 30
that provides full ACPI support. ACPI features include: • Plug and Play (including bus and device enumeration) • 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 - Intel D845EPI | Intel Desktop Board D845EPI Technical Product Specification - Page 31
. 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. Table 8. Power States and Targeted System Power Global States G0 - working state G1 - Intel D845EPI | Intel Desktop Board D845EPI Technical Product Specification - Page 32
on the wake devices supported and manufacturing options. The Desktop Board D845EPI provides several power management hardware features, including: • Power connector • Fan connectors • LAN wake capabilities • Instantly Available PC technology • Resume on Ring • Wake from USB • Wake from PS/2 keyboard - Intel D845EPI | Intel Desktop Board D845EPI Technical Product Specification - Page 33
Setup program's Boot menu. For information about The location of the power connector The signal names of the power connector The BIOS Setup program's Boot menu The ATX, SFX, and TFX12V specifications Refer to Figure 5, page 46 Table 22, page 48 Table 59, page 92 Section 1.5, page 17 1.13.2.2 Fan - Intel D845EPI | Intel Desktop Board D845EPI Technical Product Specification - 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 - Intel D845EPI | Intel Desktop Board D845EPI Technical Product Specification - Page 35
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 Wake from USB USB bus activity wakes the computer from ACPI S1 or S3 states. ✏ NOTE Wake from USB requires the use of a USB peripheral that supports Wake from USB. 1.13 - Intel D845EPI | Intel Desktop Board D845EPI Technical Product Specification - Page 36
Intel Desktop Board D845EPI Technical Product Specification 36 - Intel D845EPI | Intel Desktop Board D845EPI Technical Product Specification - Page 37
- 7FFFF Size 2047 MB 64 KB 64 KB 96 KB 160 KB 1 KB 127 KB 512 KB Description Extended memory Runtime BIOS Reserved Available high DOS memory (open to the PCI bus) Video memory and BIOS Extended BIOS data (movable by memory manager software) Extended conventional memory Conventional memory 37 - Intel D845EPI | Intel Desktop Board D845EPI Technical Product Specification - Page 38
Intel Desktop Board D845EPI Technical Product Specification 2.3 Fixed I/O Map Table 12. I/O Map Address (hex) 0000 - 00FF Size 256 bytes Description Used by the Desktop Board D845EPI. Refer to the ICH4 data sheet for dynamic addressing information. 0170 - 0177 01F0 - 01F7 0228 - 022F (Note 1) - Intel D845EPI | Intel Desktop Board D845EPI Technical Product Specification - Page 39
Diskette drive Parallel 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) USB UHCI controller 1 USB UHCI controller 2 USB - Intel D845EPI | Intel Desktop Board D845EPI Technical Product Specification - Page 40
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 - Intel D845EPI | Intel Desktop Board D845EPI Technical Product Specification - Page 41
connectors and onboard PCI devices. The PCI specification specifies how interrupts can be shared between sources are electrically tied together on the Desktop Board D845EPI and therefore share the same interrupt. Table 16 shows the ICH4 USB. The add-in card in PCI bus connector 3 now - Intel D845EPI | Intel Desktop Board D845EPI Technical Product Specification - Page 42
Intel Desktop Board D845EPI Technical Product Specification Table 16. PCI Interrupt Routing Map PCI Interrupt Source PIRQA AGP connector INTA ICH4 USB UHCI controller 1 INTA SMBus controller ICH4 USB UHCI controller 2 AC '97 ICH4 Audio/Modem ICH4 LAN ICH4 USB UHCI controller 3 ICH4 USB - Intel D845EPI | Intel Desktop Board D845EPI Technical Product Specification - Page 43
and mouse USB (four ports) Parallel port Serial port A LAN (optional) Audio (line out, line in, and mic in) • Internal I/O connectors (see page 45) Audio (ATAPI CD-ROM and front panel audio) Fans Power Add-in boards (PCI) IDE Diskette drive Chassis intrusion • External - Intel D845EPI | Intel Desktop Board D845EPI Technical Product Specification - Page 44
Intel Desktop Board D845EPI Technical Product Specification 2.8.1 Back Panel Connectors Figure 4 shows the C USB ports D Serial port A E Parallel port F LAN (optional) G USB ports H Audio line in I Mic in J Audio line out Color Green Purple Black Teal Burgundy Black Black Light blue - Intel D845EPI | Intel Desktop Board D845EPI Technical Product Specification - Page 45
hardware control (see page 46) Front panel audio ATAPI CD-ROM Fans (3) ATX12V power Main power Chassis intrusion • Add-in boards and peripheral interfaces (see page 49) PCI bus IDE Diskette drive 2.8.2.1 Expansion Slots The Desktop Board has three PCI rev 2.2 compliant local bus - Intel D845EPI | Intel Desktop Board D845EPI Technical Product Specification - Page 46
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 Front panel audio ATAPI CD-ROM (black) +12 V power connector (ATX12V) Rear chassis fan Processor fan Main power Front chassis fan - Intel D845EPI | Intel Desktop Board D845EPI Technical Product Specification - Page 47
required supplemental power for the processor. Always connect the 20-pin and 4-pin leads of ATX12V, SFX12V, and TFX12V power supplies to the corresponding connectors on the Desktop Board, otherwise the Desktop Board will not boot. • Do not use a standard ATX power supply. The Desktop Board will not - Intel D845EPI | Intel Desktop Board D845EPI Technical Product Specification - Page 48
Intel Desktop Board D845EPI Technical Product Specification Table 20. Rear Chassis Fan Connector Pin Signal Name 1 Ground (default) or FNT_REAR_FAN_CTRL (optional) 2 +12 V 3 No connect (default) or REAR_TACH_OUT (optional) Table 21. Processor Ground 17 8 PWRGD (Power Good) 18 9 +5 - Intel D845EPI | Intel Desktop Board D845EPI Technical Product Specification - Page 49
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. • SMBus signals are routed to PCI bus connector 2, enabling PCI bus add-in boards with SMBus support to access sensor data on - Intel D845EPI | Intel Desktop Board D845EPI Technical Product Specification - Page 50
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. Item A B C D 1 D7 2 10 1 2 C 8 9 13 91 A 82 B Description Serial Port B (optional) Auxiliary front panel power/sleep/message-waiting LED - Intel D845EPI | Intel Desktop Board D845EPI Technical Product Specification - Page 51
panel yellow LED On/Off Switch SWITCH_ON# In Power switch Ground Ground No connect Not connected Hard Drive Activity LED 12 34 Reset Switch 56 78 +5 V DC 9 Single-colored Power LED Dual-colored Power LED Power Switch N/C OM16110 Figure 8. Connection Diagram for Front - Intel D845EPI | Intel Desktop Board D845EPI Technical Product Specification - Page 52
Intel Desktop Board D845EPI Technical Product Specification 2.8.3.2.1 Hard Drive Activity LED Connector Pins 1 and 3 can be connected to an LED to provide a visual indicator that data is being read from or written to a hard drive. For the LED to function properly, an IDE drive must be connected to - Intel D845EPI | Intel Desktop Board D845EPI Technical Product Specification - Page 53
The +5 V DC power on the USB connector is fused. • Pins 1, 3, 5, and 7 comprise one USB port. • Pins 2, 4, 6, and 8 comprise one USB port. • Use only a front panel USB connector that conforms to the USB 2.0 specification for highspeed USB devices. Power (+5 V DC) One D− USB Port D+ Ground Key - Intel D845EPI | Intel Desktop Board D845EPI Technical Product Specification - Page 54
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. Figure 10 shows the - Intel D845EPI | Intel Desktop Board D845EPI Technical Product Specification - Page 55
the jumper is set to configuration mode and the computer is powered-up, the BIOS compares the processor version and the microcode version in the BIOS and reports if the two match. Table 31. BIOS Setup Configuration Jumper Settings Function/Mode Normal Jumper Setting 1-2 3 1 Configuration The - Intel D845EPI | Intel Desktop Board D845EPI Technical Product Specification - Page 56
mounting holes are in compliance with the ATX specification. # INTEGRATOR'S NOTE When installing the Desktop Board in a microATX chassis, make sure that peripheral devices are installed at least 1.5 inches above the main power connector, the diskette drive connector, the IDE connector, and the DIMM - Intel D845EPI | Intel Desktop Board D845EPI Technical Product Specification - Page 57
Board D845EPI must meet specific dimension and material requirements. Systems based on this Desktop Board need specification. See Section 1.5 for information about the ATX specification. # INTEGRATOR'S NOTE An I/O shield compliant with the ATX chassis specification 2.03 is available from Intel - Intel D845EPI | Intel Desktop Board D845EPI Technical Product Specification - Page 58
a 500 mA current draw per USB port. These calculations are not based on specific processor values or memory configurations but are based on the minimum and maximum current draw possible from the board's power delivery subsystems to the processor, memory, and USB ports. Use the datasheets for add - Intel D845EPI | Intel Desktop Board D845EPI Technical Product Specification - Page 59
Board D845EPI. Additional power required will depend on configurations chosen by the integrator. The power supply must comply with the following recommendations found in the indicated sections of the ATX form factor specification voltage regulator circuit. The processor voltage regulator area (item - Intel D845EPI | Intel Desktop Board D845EPI Technical Product Specification - Page 60
airflow to cool the Desktop Board D845EPI. Table 34. Thermal Considerations for Components Component Intel Pentium 4 processor Intel 82845E MCH Intel 82801DB ICH4 Maximum Case Temperature For processor case temperature, see processor datasheets and processor specification updates 92 oC (under - Intel D845EPI | Intel Desktop Board D845EPI Technical Product Specification - Page 61
Board D845EPI Environmental Specifications Parameter Specification Temperature Non-Operating -40 °C to +70 °C Operating 0 °C to +55 °C Shock Unpackaged 50 g trapezoidal waveform Velocity change of 170 inches/second Packaged Half sine 2 millisecond Product Weight (pounds) Free Fall - Intel D845EPI | Intel Desktop Board D845EPI Technical Product Specification - Page 62
Intel Desktop Board D845EPI Technical Product Specification 2.15 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 - Intel D845EPI | Intel Desktop Board D845EPI Technical Product Specification - Page 63
with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur of Conformity Statement We, Intel Corporation, declare under our sole responsibility that the product: Intel® Desktop Board D845EPI is in conformity with - Intel D845EPI | Intel Desktop Board D845EPI Technical Product Specification - Page 64
Intel Desktop Board D845EPI Technical Product Specification 2.15.4 Product Ecology Statements The following information is provided to address worldwide product ecology concerns and regulations. 2.15.4.1 Disposal Considerations This product contains the following - Intel D845EPI | Intel Desktop Board D845EPI Technical Product Specification - Page 65
System Management BIOS (SMBIOS 67 3.5 Legacy USB Support 67 3.6 BIOS Updates ...68 3.7 Recovering BIOS Data 69 3.8 Boot Options...70 3.9 Fast Booting Systems with Intel® Rapid BIOS Boot 71 3.10 BIOS Security Features 72 3.1 Introduction The Desktop Board D845EPI uses an Intel/AMI BIOS that is - Intel D845EPI | Intel Desktop Board D845EPI Technical Product Specification - Page 66
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. 3.3 - Intel D845EPI | Intel Desktop Board D845EPI Technical Product Specification - Page 67
operating system's USB drivers are not yet available. Legacy USB support is used to access the BIOS Setup program, and to install an operating system that supports USB. By default, Legacy USB support is set to Enabled. Legacy USB support operates as follows: 1. When you apply power to the computer - Intel D845EPI | Intel Desktop Board D845EPI Technical Product Specification - Page 68
Intel Desktop Board D845EPI Technical Product Specification 5. The operating system loads. While the operating system is loading, USB keyboards and mice are recognized and may be used to configure the operating system. (Keyboards and mice are not recognized during this period if Legacy USB support - Intel D845EPI | Intel Desktop Board D845EPI Technical Product Specification - Page 69
in the non-erasable boot block area, there is no video support. You can only monitor this procedure by listening to the speaker or looking at the diskette drive LED. • The recovery process may take several minutes; larger BIOS flash memory devices require more time. • Two beeps and the end of - Intel D845EPI | Intel Desktop Board D845EPI Technical Product Specification - Page 70
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 - Intel D845EPI | Intel Desktop Board D845EPI Technical Product Specification - Page 71
could save several seconds of painting complex graphic images and changing video modes. • Enabled Intel Rapid BIOS Boot. This feature bypasses memory count and the search for a diskette drive. In the Peripheral Configuration submenu, disable the LAN device if it will not be used. This can reduce up - Intel D845EPI | Intel Desktop Board D845EPI Technical Product Specification - Page 72
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 prompt will be displayed before - Intel D845EPI | Intel Desktop Board D845EPI Technical Product Specification - Page 73
options For information about Boot Integrity Services (BIS) Refer to Section 1.5, page 17 ✏ NOTE In this chapter, all examples of the BIOS Setup program menu bar include the maintenance menu; however, the maintenance menu is displayed only when the Desktop Board is in configuration mode. Section - Intel D845EPI | Intel Desktop Board D845EPI Technical Product Specification - Page 74
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 or or Description Selects a different menu screen (Moves the - Intel D845EPI | Intel Desktop Board D845EPI Technical Product Specification - Page 75
the version of the BIOS. Displays processor type. Displays processor speed. Displays the system bus speed. Displays the system memory speed. Displays the size of second-level cache. Displays the total amount of RAM. Displays the amount and type of RAM in the memory banks. Selects the current - Intel D845EPI | Intel Desktop Board D845EPI Technical Product Specification - Page 76
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 Advanced Security Power diskette drive. Configures Event Logging. Configures video features. Configures USB support. - Intel D845EPI | Intel Desktop Board D845EPI Technical Product Specification - Page 77
bar and then PCI Configuration. Maintenance Main Advanced Security Power PCI Configuration Boot Configuration Peripheral Configuration IDE Configuration Diskette Configuration Event Log Configuration Video Configuration USB Configuration Chipset Configuration Boot Exit The submenu shown in - Intel D845EPI | Intel Desktop Board D845EPI Technical Product Specification - Page 78
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 Advanced Security PCI Configuration Power Boot Exit Boot Configuration Peripheral Configuration - Intel D845EPI | Intel Desktop Board D845EPI Technical Product Specification - Page 79
Power PCI Configuration Boot Configuration Peripheral Configuration IDE Configuration Diskette Configuration Event Log Configuration Video Configuration USB the first free COM port, normally COM1, the • Auto (default) address 3F8h, and the interrupt IRQ4. An * (asterisk) displayed next to an - Intel D845EPI | Intel Desktop Board D845EPI Technical Product Specification - Page 80
Intel Desktop Board D845EPI Technical Product Specification Table 48. Peripheral Configuration Submenu ( audio subsystem. For boards with no onboard audio subsystem, this option does not appear. Enables or disables the onboard LAN device. For boards with no onboard LAN subsystem, this option will - Intel D845EPI | Intel Desktop Board D845EPI Technical Product Specification - Page 81
Select to display submenu Select to display submenu Description Specifies the integrated IDE controller. Primary enables only the primary IDE controller. Secondary enables only the secondary IDE controller. Both enables both IDE controllers. Enables/disables the use of DMA for hard drive BIOS INT13 - Intel D845EPI | Intel Desktop Board D845EPI Technical Product Specification - Page 82
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 Advanced Security Power PCI - Intel D845EPI | Intel Desktop Board D845EPI Technical Product Specification - Page 83
the device occur multiple sectors at a time if the device supports block mode transfers. (This item is read-only unless Type drive is attached to the system, a row entitled ARMD Emulation Type will be displayed in the above table. The BIOS will always recognize the drive as an ATAPI floppy drive - Intel D845EPI | Intel Desktop Board D845EPI Technical Product Specification - Page 84
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 Advanced Security Power PCI Configuration Boot Configuration Peripheral Configuration IDE - Intel D845EPI | Intel Desktop Board D845EPI Technical Product Specification - Page 85
Power PCI Configuration Boot Configuration Peripheral Configuration IDE Configuration Diskette Configuration Event Log Configuration Video Configuration USB Description Indicates if there is space available in the event log. Displays the event log. Clears the event log after rebooting. Enables - Intel D845EPI | Intel Desktop Board D845EPI Technical Product Specification - Page 86
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 Advanced Security Power PCI Configuration Boot Configuration Peripheral Configuration IDE - Intel D845EPI | Intel Desktop Board D845EPI Technical Product Specification - Page 87
Disabled • Enabled (default) Legacy USB Support • Disabled • Enabled (default) USB 2.0 Legacy Support • Fullspeed (default) • Hispeed Description Set to Disabled when a USB 2.0 driver is not available. Enables/disables legacy USB support. Configures the USB 2.0 legacy support to Hi-Speed (480 - Intel D845EPI | Intel Desktop Board D845EPI Technical Product Specification - Page 88
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 Advanced Security Power PCI Configuration Boot Configuration Peripheral Configuration IDE - Intel D845EPI | Intel Desktop Board D845EPI Technical Product Specification - Page 89
• 2 (default) SDRAM RAS# Precharge • 3 • 2 (default) Description Auto = Timings will be programmed according to the memory detected. Manual - Aggressive = Selects most aggressive user-defined timings. Manual - User Defined = Allows manual override of detected SDRAM settings. Corresponds to tRAS - Intel D845EPI | Intel Desktop Board D845EPI Technical Product Specification - Page 90
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 Security Power Halts system during POST. User must enter BIOS setup Security Menu and select "Clear Chassis - Intel D845EPI | Intel Desktop Board D845EPI Technical Product Specification - Page 91
ACPI Suspend State Options • S1 State • S3 State (default) Wake on LAN from S5 • Stay Off (default) • Power On Description S1 is the safest mode but consumes more power. S3 consumes less power, but some drivers may not support this state. In ACPI soft-off mode only, determines how the system - Intel D845EPI | Intel Desktop Board D845EPI Technical Product Specification - Page 92
Power Boot Exit Boot Device Priority Hard Disk Drives Removable Devices ATAPI CD-ROM Drives The menu represented in Table 59 is used to set the boot features and the boot sequence. Table 59. Boot Menu Feature Silent Boot Intel Rapid BIOS Boot Scan User Flash Area PXE Boot to LAN USB - Intel D845EPI | Intel Desktop Board D845EPI Technical Product Specification - Page 93
2nd Boot Device 3rd Boot Device 4th Boot Device Options • Removable Dev. • Hard Drive • ATAPI CD-ROM • Intel® Boot Agent (Note) • Disabled Description Specifies the boot sequence according to the device type. The computer will attempt to boot from up to five devices as specified here. Only one of - Intel D845EPI | Intel Desktop Board D845EPI Technical Product Specification - Page 94
submenu appears only if at least one boot device of this type is installed. This list will display up to twelve hard disk drives, the maximum number of hard disk drives supported by the BIOS. 4.7.3 Removable Devices Submenu To access this menu, select Boot on the menu bar, then Removable Devices - Intel D845EPI | Intel Desktop Board D845EPI Technical Product Specification - Page 95
as the intended boot device. Note: This boot device submenu appears only if at least one boot device of this type is installed. This list will display up to four ATAPI CD-ROM drives, the maximum number of ATAPI CD-ROM drives supported by the BIOS. 95 - Intel D845EPI | Intel Desktop Board D845EPI Technical Product Specification - Page 96
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 - Intel D845EPI | Intel Desktop Board D845EPI Technical Product Specification - Page 97
BIOS Beep Codes ...104 5.1 BIOS Error Messages Table 65 lists the error messages and provides a brief description of each. Table 65. BIOS diskette drive. An error occurred when testing L2 cache. Cache memory may be bad. The battery may be losing power. Replace the battery soon. The display type - Intel D845EPI | Intel Desktop Board D845EPI Technical Product Specification - Page 98
Intel Desktop Board D845EPI Technical Product Specification Table 65. BIOS Error Messages ( memory was removed then memory may be bad. Memory Size Increased Memory size has increased since the last boot. If no memory was added there may be a problem with the system. Memory Size Changed Memory - Intel D845EPI | Intel Desktop Board D845EPI Technical Product Specification - Page 99
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 - Intel D845EPI | Intel Desktop Board D845EPI Technical Product Specification - Page 100
Intel Desktop Board D845EPI Technical Product Specification Table 68. Runtime Code Uncompressed in F000 Shadow RAM Code 03 05 06 07 08 0B 0C 0E 0F 10 11 12 13 14 19 1A 23 24 25 27 28 2A 2B 2C - Intel D845EPI | Intel Desktop Board D845EPI Technical Product Specification - Page 101
the first 64k memory size. Memory size display started. This will be updated during memory test. Going for sequential and random memory test. Memory testing/initialization below 1M complete. Going to adjust displayed memory size for relocation/shadow. Memory size display adjusted due to relocation - Intel D845EPI | Intel Desktop Board D845EPI Technical Product Specification - Page 102
Intel Desktop Board D845EPI Technical Product Specification Table 68. Runtime Code Uncompressed in F000 Shadow RAM (continued) Code 84 . Going to display power-on screen message. First screen message displayed. message displayed. PS/2 Mouse check and extended BIOS data area allocation - Intel D845EPI | Intel Desktop Board D845EPI Technical Product Specification - Page 103
specific area. Copying of code to specific area done. Going to give control to INT-19 boot loader. 5.3 Bus Initialization Checkpoints The system BIOS , IPL, and general devices) to start if present. 39 Display different buses initialization error messages. 95 Init of different buses optional - Intel D845EPI | Intel Desktop Board D845EPI Technical Product Specification - Page 104
Intel Desktop Board D845EPI Technical Product Specification Table 71 describes the lower nibble of Board D845EPI Refer to 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). The BIOS - Intel D845EPI | Intel Desktop Board D845EPI Technical Product Specification - Page 105
2 Parity cannot be reset 3 First 64 KB memory failure 4 Timer not operational 5 Not used 6 8042 GateA20 cannot be toggled 7 Exception interrupt error 8 Display memory R/W error 9 Not used 10 CMOS Shutdown register test error 11 Invalid BIOS (e.g. POST module not found, etc.) 105 - Intel D845EPI | Intel Desktop Board D845EPI Technical Product Specification - Page 106
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July 2003
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.
Intel
®
Desktop Board D845EPI
Technical Product Specification