Intel D845PEBT2 Product Specification

Intel D845PEBT2 Manual

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  • Intel D845PEBT2 | Product Specification - Page 1
    September 2002 Order Number: C15333-001 The Intel® Desktop Board D845PEBT2 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 D845PEBT2 Specification Update.
  • Intel D845PEBT2 | Product Specification - Page 2
    Board D845PEBT2 Technical Product Specification. Date September 2002 This product specification applies to only the standard Intel Desktop Board D845PEBT2 with BIOS identifier BT84520A.86A. Changes to this specification will be published in the Intel Desktop Board D845PEBT2 Specification Update
  • Intel D845PEBT2 | Product Specification - Page 3
    Preface This Technical Product Specification (TPS) specifies the Intel Desktop Board D845PEBT2 layout, components, connectors, power and environmental requirements, and BIOS. The TPS describes the standard product and available manufacturing options. Intended Audience The TPS is intended to
  • Intel D845PEBT2 | Product Specification - Page 4
    Intel Desktop Board D845PEBT2 Technical Product Specification Other Common Notation # (NxnX) GB GB/sec KB Kbit on the Desktop Board D845PEBT2, 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
  • Intel D845PEBT2 | Product Specification - Page 5
    Design Specifications 17 1.5 Processor ...20 1.6 System Memory ...21 1.7 Intel® 845PE Chipset 23 1.7.1 AGP ...24 1.7.2 USB...24 1.7.3 IDE Support 25 1.7.4 Real-Time Clock, CMOS SRAM, and Battery 26 1.7.5 Intel® 82802AB Firmware Hub (FWH 26 1.8 IDE RAID Controller (Optional 27 1.9 Serial ATA
  • Intel D845PEBT2 | Product Specification - Page 6
    Intel Desktop Board D845PEBT2 Technical Product Specification 2 Technical Reference 2.1 Introduction...45 2.2 Memory Map ...45 2.3 Fixed I/O Map...46 2.4 DMA Channels ...47 2.5 PCI Configuration Space Map 47 2.6 Interrupts ...48 2.7 PCI Interrupt Routing Map 49 2.8 Connectors ...51 2.8.1 Back
  • Intel D845PEBT2 | Product Specification - Page 7
    Intel Rapid BIOS Boot 95 3.11 BIOS Security Features 96 4 BIOS Setup Program 4.1 Introduction...97 4.2 Maintenance Menu ...98 4.3 Main Menu...99 4.4 Advanced Menu...100 4.4.1 PCI Configuration Submenu 101 4.4.2 Boot Configuration Submenu 102 4.4.3 Peripheral Configuration Submenu 103 4.4.4 IDE
  • Intel D845PEBT2 | Product Specification - Page 8
    D845PEBT2 Technical Product Specification Figures 1. Desktop Board D845PEBT2 Components 14 2. Block Diagram ...15 3. Intel 845PE Chipset Block Diagram 23 4. USB Port Configuration 24 5. 6-Channel Audio Subsystem Block Diagram 31 6. 2-Channel Audio Subsystem Block Diagram 32 7. LAN Connector
  • Intel D845PEBT2 | Product Specification - Page 9
    80 57. Fan Connector Current Capability 81 58. Thermal Considerations for Components 84 59. Desktop Board D845PEBT2 Environmental Specifications 85 60. Safety Regulations ...86 61. EMC Regulations...86 62. Boot Device Menu Options 94 63. Supervisor and User Password Functions 96 64. BIOS Setup
  • Intel D845PEBT2 | Product Specification - Page 10
    Intel Desktop Board D845PEBT2 Technical Product Specification 67. Main Menu...99 68. Advanced Menu...100 69. PCI Configuration Submenu 101 70. Boot Configuration Submenu 102 71. Peripheral Configuration Submenu 103 72. IDE Configuration Submenu 105 73. Primary/Secondary IDE Master/Slave Submenus
  • Intel D845PEBT2 | Product Specification - Page 11
    System Support 16 1.4 Design Specifications 17 1.5 Processor ...20 1.6 System Memory ...21 1.7 Intel® 845PE Chipset 23 1.8 IDE RAID Controller (Optional 27 1.9 Serial ATA Controller (Optional 27 1.10 I/O Controller ...28 1.11 IEEE 1394a-2000 Controller (Optional 29 1.12 Audio Subsystem
  • Intel D845PEBT2 | Product Specification - Page 12
    Specification 1.1 Overview 1.1.1 Feature Summary Table 1 summarizes the major features of the Intel® Desktop Board D845PEBT2. Table 1. Feature Summary Form Factor Processor Memory Chipset Video Audio USB Serial ATA (SATA) or IDE RAID Peripheral Interfaces Expansion Capabilities I/O Control
  • Intel D845PEBT2 | Product Specification - Page 13
    audio subsystem using the Analog Devices AD1981B codec CNR Communication and Networking Riser (CNR) connector. NOTE: LAN and USB CNR cards are not supported. IEEE 1394a-2000 • Agere Systems FW323 controller • Three IEEE 1394a-2000 ports SATA/SATA RAID or IDE RAID The Desktop Board D845PEBT2
  • Intel D845PEBT2 | Product Specification - Page 14
    IDE RAID connectors (optional) F mPGA478 processor socket R SATA/SATA RAID connectors (optional) G Intel 82845PE Memory Controller Hub (MCH) S SATA/SATA RAID or IDE RAID controller H DIMM sockets T Battery I I/O controller U IEEE 1394a-2000 front panel connectors (optional) J Power connector
  • Intel D845PEBT2 | Product Specification - Page 15
    Serial Port Parallel Port PS/2 Mouse PS/2 Keyboard Diskette Drive Connector AGP Interface 4X AGP Connector (1.5 V only) Intel 82845PE Memory Controller Hub (MCH) AHA Bus Two DIMM Banks Primary/Secondary SATA/SATA RAID or IDE RAID Three IEEE 1394a-2000 Ports (Optional) Memory Bus SMBus SATA/SATA
  • Intel D845PEBT2 | Product Specification - Page 16
    for the Desktop Board D845PEBT2 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/desktop http://developer.intel.com
  • Intel D845PEBT2 | Product Specification - Page 17
    applicable to the Desktop Board D845PEBT2. Table 3. Specifications Reference Name Specification Title 1394 IEEE Std 1394-1995, IEEE Standard for a High Performance Serial Bus IEEE Std 1394a-2000, IEEE Standard for a High Performance Serial Bus - Amendment 1 AC '97 Audio Codec '97 ACPI
  • Intel D845PEBT2 | Product Specification - Page 18
    Intel Desktop Board D845PEBT2 Technical Product Specification Table 3. Specifications (continued) Reference Name DDR SDRAM EHCI EPP Specification Title Double Data Rate (DDR) SDRAM Specification Design Specification for a 184 Pin DDR Unbuffered DIMM Intel ® JEDEC DDR 200/266 Unbuffered DIMM
  • Intel D845PEBT2 | Product Specification - Page 19
    (continued) Reference Name PXE SATA SMBIOS UHCI USB Specification Title Preboot Execution Environment Serial ATA: High Speed Serialized AT Attachment System Management BIOS Universal Host Controller Interface Design Guide Universal Serial Bus Specification Version, Revision Date and Ownership
  • Intel D845PEBT2 | Product Specification - Page 20
    with a system bus of 400/533 MHz • An Intel Celeron processor in an mPGA478 socket with a system bus of 400 MHz The list of supported processors for the Desktop Board D845PEBT2 is available from Intel's World Wide Web site. All supported onboard memory can be cached. See the processor's data sheet
  • Intel D845PEBT2 | Product Specification - Page 21
    System Memory The Desktop Board D845PEBT2 has two DIMM sockets and supports the following memory features: • 2.5 V (only) 184-pin DDR memory specifications, the Desktop Board should be populated with DIMMs that support the Serial Presence Detect (SPD) data structure. This allows the BIOS to read
  • Intel D845PEBT2 | Product Specification - Page 22
    Intel Desktop Board D845PEBT2 Technical Product Specification Table 4 lists the supported DIMM configurations. Table 4. Supported Memory Configurations DIMM Capacity DDR SDRAM Configuration Density DDR SDRAM Organization Number of DDR Front-side/Back-side SDRAM Devices 64 MB SS 64 Mbit 8
  • Intel D845PEBT2 | Product Specification - Page 23
    Hub (ICH4) with AHA bus • Intel 82802AB (4 Mbit) 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. The ICH4 is a centralized controller for the Desktop Board D845PEBT2's I/O paths. The FWH provides
  • Intel D845PEBT2 | Product Specification - Page 24
    the AGP connector Obtaining the Accelerated Graphics Port Interface Specification Refer to Figure 1, page 14 Table 38, page 64 Section 1.4, page 17 1.7.2 USB The Desktop Board D845PEBT2 supports up to six USB 2.0 ports, fully supports UHCI and EHCI, and uses UHCI- and EHCI-compatible drivers. The
  • Intel D845PEBT2 | Product Specification - Page 25
    (LBA) and Extended Cylinder Head Sector (ECHS) translation modes. The drive reports the transfer rate and translation mode to the BIOS. The Desktop Board D845PEBT2 supports Laser Servo (LS-120) diskette technology through the IDE interfaces. The BIOS supports booting from an LS-120 drive. 25
  • Intel D845PEBT2 | Product Specification - Page 26
    Intel Desktop Board D845PEBT2 Technical Product Specification ✏ 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 disk drive. For information about The location of the IDE connectors The signal names of
  • Intel D845PEBT2 | Product Specification - Page 27
    IDE RAID connectors The signal names of the IDE RAID connectors BIOS Setup program's Boot menu Refer to Figure 14, page 61 Table 43, page 67 Table 83, page 115 1.9 Serial ATA Controller (Optional) The Silicon Image SiI 3112a is a PCI-to-Serial ATA (SATA) controller of individual drives or a RAID
  • Intel D845PEBT2 | Product Specification - Page 28
    support The BIOS Setup program provides configuration options for the I/O controller. For information about SMSC LPC47M172 I/O controller Refer to http://www.smsc.com 1.10.1 Serial Ports The Desktop Board D845PEBT2 has one serial port connector located on the back panel. The serial port supports
  • Intel D845PEBT2 | Product Specification - Page 29
    hot swapping • Plug and play The Desktop Board D845PEBT2 has one back panel and two front panel IEEE 1394a-2000 connectors. ✏ NOTE IEEE 1394a-2000 support has been tested with Windows 2000 and Windows XP drivers and is not currently supported by any other operating system. For information
  • Intel D845PEBT2 | Product Specification - Page 30
    Intel Desktop Board D845PEBT2 Technical Product Specification 1.12 Audio Subsystem The Desktop Board D845PEBT2 includes one of the following: • 6-channel audio subsystem based on the Analog Devices AD1980 codec (described on page 30) • 2-channel audio subsystem based on the Analog Devices AD1981B
  • Intel D845PEBT2 | Product Specification - Page 31
    includes the following: • Intel 82801DB I/O Controller Hub (ICH4) • Analog Devices AD1981B audio codec • Microphone input that supports a single dynamic, condenser, or electret microphone The subsystem has the following connectors: • Front panel audio connector, including pins for:  Line out
  • Intel D845PEBT2 | Product Specification - Page 32
    Intel Desktop Board D845PEBT2 Technical Product Specification Figure 6 is a block diagram of the 2-channel audio subsystem. 82801DB I/O Controller Hub (ICH4) AC '97 Link AD1981B Audio Codec Line In Line Out Mic In CD-ROM OM15031 Figure 6. 2-Channel Audio Subsystem Block Diagram For
  • Intel D845PEBT2 | Product Specification - Page 33
    the back panel RJ-45 connector with integrated LEDs. The Intel 82562ET provides the following functions: • Basic 10/100 Ethernet LAN connectivity • Supports RJ-45 connector with status indicator LEDs on the back panel • Full device driver compatibility • ACPI support • Programmable transit threshold
  • Intel D845PEBT2 | Product Specification - Page 34
    management and for CNR card operation. ✏ NOTE The Desktop Board D845PEBT2 does not support USB and LAN functionality on CNR cards. Figure 8 shows the signal interface between the ICH4 and the CNR. CNR Connector Intel 82801DB I/O Controller Hub (ICH4) AC '97 Interface SMBus Communication and
  • Intel D845PEBT2 | Product Specification - Page 35
    about CNR audio upgrade cards Refer to http://developer.intel.com/technology/cnr/ 1.15 Hardware Management Subsystem The hardware management features enable the Desktop Board D845PEBT2 to be compatible with the Wired for Management (WfM) specification. The Desktop Board D845PEBT2 has the
  • Intel D845PEBT2 | Product Specification - Page 36
    Intel Desktop Board D845PEBT2 Technical Product Specification 1.15.1.2 Thermal Monitoring Figure 9 shows the location of the sensors and fan connectors. A B C D F E A Thermal diode, located on processor die B Remote ambient temperature sensor C Ambient temperature sensor, internal to hardware
  • Intel D845PEBT2 | Product Specification - Page 37
    Description 1.15.3 Chassis Intrusion and Detection The boards support a chassis security feature that detects if the chassis cover has been removed. The security feature uses a mechanical switch on the chassis that attaches to the chassis intrusion connector. When the chassis cover is removed, the
  • Intel D845PEBT2 | Product Specification - Page 38
    Intel Desktop Board D845PEBT2 Technical Product Specification 1.16.1 ACPI ACPI gives the operating system direct control over the power management and Plug and Play functions of a computer. The use of ACPI with the Desktop Board D845PEBT2 requires an operating system that provides full ACPI support
  • Intel D845PEBT2 | Product Specification - Page 39
    lists the power states supported by the Desktop Board D845PEBT2 along with the associated system power targets. See the ACPI specification for a complete description . Service can be performed safely. Notes: 1. Total system power is dependent on the system configuration, including add-in boards and
  • Intel D845PEBT2 | Product Specification - Page 40
    depends on the wake devices supported and manufacturing options. Refer to Section 2.11.3 on page 80 for additional information. The Desktop Board D845PEBT2 provides power management hardware features, including: • Power connector • Fan connectors • LAN wake capabilities • Instantly Available
  • Intel D845PEBT2 | Product Specification - Page 41
    ACPI support. 1.16.2.1 Power Connector ATX12V-compliant power supplies can turn off the system power through system control. BIOS Setup program's Boot menu. For information about The power connector locations The power connector signal names The BIOS Setup program's Boot menu The ATX specification
  • Intel D845PEBT2 | Product Specification - Page 42
    can wake the computer from the S3 state. The Desktop Board D845PEBT2 supports the PCI Bus Power Management Interface Specification. For information on the version of this specification, see Section 1.4. Add-in boards that also support this specification can participate in power management and can be
  • Intel D845PEBT2 | Product Specification - Page 43
    cord before installing or removing any devices connected to the Desktop Board D845PEBT2. Failure to do so could damage the Desktop Board D845PEBT2 and any attached devices. The standby power indicator LED shows NOTE Wake from USB requires the use of a USB peripheral that supports Wake from USB. 43
  • Intel D845PEBT2 | Product Specification - Page 44
    Intel Desktop Board D845PEBT2 Technical Product Specification 1.16.2.8 Wake from PS/2 Devices PS/2 device activity wakes the computer from an ACPI S1 or S3 state. 1.16.2.9 PME# Wake-up Support When the PME# signal on the PCI bus is asserted, the computer wakes from an ACPI S1, S3, S4, or S5 state (
  • Intel D845PEBT2 | Product Specification - Page 45
    Reference What This Chapter Contains 2.1 Introduction...45 2.2 Memory Map ...45 2.3 Fixed I/O Map...46 2.4 DMA Channels ...47 2.5 PCI Configuration Space Map 47 2.6 Interrupts ...48 2.7 PCI Interrupt Routing Map 49 2.8 Connectors ...51 2.9 Jumper Blocks...72 2.10 Mechanical Considerations
  • Intel D845PEBT2 | Product Specification - Page 46
    Intel Desktop Board D845PEBT2 Technical Product Specification 2.3 Fixed I/O Map Table 11. I/O Map Address (hex) Size Description 0000 - 00FF 256 bytes Used by the Desktop Board D845PEBT2. Refer to the ICH4 data sheet for dynamic addressing information 0170 - 0177 8 bytes Secondary IDE
  • Intel D845PEBT2 | Product Specification - Page 47
    AC '97 audio controller AC '97 modem controller (optional) USB UHCI controller 1 USB UHCI controller 2 USB UHCI controller 3 EHCI controller AGP add-in card LAN controller PCI bus connector 1 PCI bus connector 2 PCI bus connector 3 PCI bus connector 4 PCI bus connector 5 SATA/SATA RAID or IDE RAID
  • Intel D845PEBT2 | Product Specification - Page 48
    Intel Desktop Board D845PEBT2 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 D845PEBT2 | Product Specification - Page 49
    are connected between the PCI bus connectors and onboard PCI devices. The PCI specification specifies how interrupts can be shared signals. Some PCI interrupt sources are electrically tied together on the Desktop Board D845PEBT2 and therefore share the same interrupt. Table 15 shows an example of
  • Intel D845PEBT2 | Product Specification - Page 50
    Intel Desktop Board D845PEBT2 Technical Product Specification Table 15. 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 D845PEBT2 | Product Specification - Page 51
    Serial port A  Digital S/PDIF (optional)  Optical S/PDIF (optional)  Audio  LAN • Internal I/O connectors (see page 56):  ATAPI-style CD-ROM  Fans  Power  PCI add-in boards  AGP add-in board  IDE  Diskette drive  SCSI LED  SATA/SATA RAID (optional)  IDE RAID (optional)  CNR (optional
  • Intel D845PEBT2 | Product Specification - Page 52
    Intel Desktop Board D845PEBT2 Technical Product Specification 2.8.1 Back Panel Connectors Figure 11 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. A C K F I N
  • Intel D845PEBT2 | Product Specification - Page 53
    Table 17. IEEE 1394a-2000 Connector (Optional) Pin 1 2 3 4 5 6 7 - 14 Signal Name +12V (Fused) Ground TPB1TPB1+ TPA1TPA1+ Shield Ground Table 18. USB Connectors Pin Signal Name 1 +5 V (Fused) 2 USB# 3 USB 4 Ground Table 19. Serial Port A Connector Pin Signal Name 1 DCD (Data
  • Intel D845PEBT2 | Product Specification - Page 54
    Intel Desktop Board D845PEBT2 Technical Product Specification Table 20. Parallel Port Connector Pin 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 - 25 Standard Signal Name STROBE# PD0 PD1 PD2 PD3 PD4 PD5 PD6 PD7 ACK# BUSY PERROR
  • Intel D845PEBT2 | Product Specification - Page 55
    25. Audio Line In Connector Pin Tip Ring Sleeve Signal Name Audio left in Audio right in Ground Table 26. Audio Line Out Connector (Front Left and Right Out for 6-Channel Audio) Pin Signal Name Tip Audio left out Ring Audio right out Sleeve Ground Table 27. Mic In Connector Pin Tip
  • Intel D845PEBT2 | Product Specification - Page 56
    Intel Desktop Board D845PEBT2 Technical Product Specification 2.8.2 Internal I/O Connectors The internal I/O connectors are divided into the following functional groups: • Power and hardware control (see page 58):  Fans [three]  ATX12V  Main power  Chassis intrusion • Add-in boards and
  • Intel D845PEBT2 | Product Specification - Page 57
    optional). • Five PCI rev 2.2 compliant local bus slots: PCI add-in cards with SMBus support can access sensor data and other information residing on the Desktop Board D845PEBT2. As shown in the table below, the PCI bus connector The ATX specification and the Desktop Board D845PEBT2's silkscreen are
  • Intel D845PEBT2 | Product Specification - Page 58
    Intel Desktop Board D845PEBT2 Technical Product Specification 2.8.2.2 Power and Hardware Control Connectors CAUTION The processor fan must be connected to the processor fan connector, not to a chassis fan connector. Connecting the processor fan to a chassis fan connector may result in onboard
  • Intel D845PEBT2 | Product Specification - Page 59
    required supplemental power for the Intel Pentium 4 processor. The Desktop Board D845PEBT2 will not boot if the ATX12V power supply is not connected to both the 4-pin and 20-pin power connectors. For information about The power connector The functions of the fan connectors Refer to Section 1.16
  • Intel D845PEBT2 | Product Specification - Page 60
    Intel Desktop Board D845PEBT2 Technical Product Specification Table 33. Main Power Connector Pin Signal Name Pin 1 +3.3 V 11 2 +3.3 V 12 3 Chassis Intrusion Connector Pin Signal Name 1 Intruder 2 Ground Table 35. Front Chassis Fan Connector Pin Signal Name 1 Control 2 +12
  • Intel D845PEBT2 | Product Specification - Page 61
    ] (optional) Primary IDE RAID [blue] (optional) Primary SATA/SATA RAID (optional) Secondary SATA/SATA RAID (optional) OM15034 For more information see: Table 41 Table 41 Table 40 Table 42 Table 43 Table 43 Table 44 Table 44 Figure 14. D845PEBT2 Add-in Board and Peripheral Interface Connectors 61
  • Intel D845PEBT2 | Product Specification - Page 62
    Intel Desktop Board D845PEBT2 Technical Product Specification Table 36. CNR Connector (Optional) Pin Signal Name A1 Reserved A2 AC97_SDATA_IN2 A28 AC97_SDATA_IN1 A29 AC97_SDATA_IN0 A30 Ground For information about CNR Pin Signal Name B1 Reserved B2 Reserved B3 Reserved B4 Ground B5
  • Intel D845PEBT2 | Product Specification - Page 63
    V A62 +5 V B58 AD01 B59 +5 V (I/O) B60 ACK64# B61 +5 V B62 +5 V * These signals (in parentheses) are optional in the PCI specification and are not currently implemented. ** On PCI bus connector 1 or 2 (see section 2.8.2.1 on page 57), this pin is connected to the SMBus clock line. *** On PCI bus
  • Intel D845PEBT2 | Product Specification - Page 64
    Intel Desktop Board D845PEBT2 Technical Product Specification Table 38. AGP Connector Pin Signal Name Pin A1 +12 V B1 B29 A30 AD24 B30 A31 Ground B31 A32 AD_STB1# B32 A33 C/BE3# B33 Signal Name Pin Not connected A34 +5 V A35 +5 V A36 Not connected A37 Ground A38 INTB# A39
  • Intel D845PEBT2 | Product Specification - Page 65
    Connector Pin Signal Name 1 Left audio input from CD-ROM 2 CD audio differential ground 3 CD audio differential ground 4 Right audio input from CD-ROM Table 40. Diskette Drive Connector Pin Signal Name Pin Protect) RDATA# (Read Data) HDSEL# (Side 1 Select) DSKCHG# (Diskette Change) 65
  • Intel D845PEBT2 | Product Specification - Page 66
    Intel Desktop Board D845PEBT2 Technical Product Specification Table 41. PCI IDE Connectors Pin Signal Name Pin 1 Reset IDE 2 3 Data 7 4 5 Data 6 6 7 Data 5 8 9 Data 4 10 11 Data 3 12 13 Data 2 14 15 Data 1 16 17 Data 0 18 19 Ground 20 21 DDRQ0 [DDRQ1] 22 23 I/O
  • Intel D845PEBT2 | Product Specification - Page 67
    Reference Table 43. IDE RAID Connectors (Optional) Pin Signal Name Pin 1 Reset IDE 2 3 Data 7 4 5 Data 6 6 7 Data 5 8 9 Data 4 10 11 Data 3 12 13 Data 2 14 15 Data 1 16 17 Data 0 18 19 Ground 20 21 DMARQ 22 23 I/O Write# 24 25 I/O Read# 26 27 IORDY
  • Intel D845PEBT2 | Product Specification - Page 68
    Intel Desktop Board D845PEBT2 Technical Product Specification 2.8.3 External I/O Connectors Figure 15 shows the locations of the external I/O connectors. A 12 9 10 12 7 10 12 7 10 12 7 10 9 8 21 1 1 E Item A B C D E D C B Description Front panel audio Auxiliary front panel power/sleep/
  • Intel D845PEBT2 | Product Specification - Page 69
    Key L_RETIN ✏ NOTE The front panel audio connector is alternately used as a jumper block for routing audio signals. For more information, see Section 2.9.1 on page 72. Table 46. Front Panel USB Connector Pin Signal Name Pin Signal Name 1 USB_FNT_PWR 2 USB_FNT_PWR 3 USB_FNT1# 4 USB_FNT2
  • Intel D845PEBT2 | Product Specification - Page 70
    Intel Desktop Board D845PEBT2 Technical Product Specification 2.8.3.1 Front Panel Connector This section describes the functions of the front panel connector. Table 48 lists the signal names of the front panel connector. Table 48. Front Panel Connector Pin Signal In/Out Description Pin Hard
  • Intel D845PEBT2 | Product Specification - Page 71
    single pole, single throw (SPST) type switch that is normally open. When the switch is closed, the Desktop Board D845PEBT2 resets and runs the POST. 2.8.3.1.3 Power/Sleep/Message Waiting LED Connector Pins 2 and 4 can be connected to a one- or two-color LED. Table 49 shows the possible states for
  • Intel D845PEBT2 | Product Specification - Page 72
    jumper configurations are not supported and could damage the Desktop Board D845PEBT2. This connector has two functions: • With jumpers installed, the audio line out signals are routed to the back panel audio line out connector. • With jumpers removed, the connector provides audio line out and mic
  • Intel D845PEBT2 | Product Specification - Page 73
    for front panel audio, the back panel audio line out and mic in connectors are disabled. 2.9.2 BIOS Setup Configuration Jumper Block The 3-pin jumper block determines the BIOS Setup program's mode. Table 53 describes the jumper settings for the three modes: normal, configure, and recovery. When the
  • Intel D845PEBT2 | Product Specification - Page 74
    Intel Desktop Board D845PEBT2 Technical Product Specification 2.10 Mechanical Considerations 2.10.1 D845PEBT2 Form Factor The Desktop Board D845PEBT2 is designed to fit into an ATX-form-factor chassis. The board dimensions depend on the board version, as shown in the table below. The location of
  • Intel D845PEBT2 | Product Specification - Page 75
    6.50 [165.10] 6.10 [154.94] Technical Reference 5.20 [132.08] 0.00 2.00 [50.80] 5.55 [140.97] 4.90 [124.46] 0.00 2.60 [66.04] 1.80 [45.72] 6.45 [163.83] 6.20 [157.48] OM15077 Figure 19. 12" x 8.5" Desktop Board Dimensions 75
  • Intel D845PEBT2 | Product Specification - Page 76
    Desktop Board D845PEBT2: • Figure 20 shows the I/O shield for boards with the 6-channel audio subsystem and a back panel 1394a-2000 connector. • Figure 21 shows the I/O shield for boards with the 6-channel audio compliant with the ATX chassis specification 2.03 is available from Intel. 22.45 [0.88]
  • Intel D845PEBT2 | Product Specification - Page 77
    .80 [2.08] 84.80 [3.339] 96.69 [3.807] 110.58 [4.354] 125.67 [4.95] 143.12 [5.635] Pictorial View OM14849 Figure 21. I/O Shield Dimensions for Boards with a 6-Channel Audio Subsystem and Without IEEE 1394a-2000 Connector 77
  • Intel D845PEBT2 | Product Specification - Page 78
    Intel Desktop Board D845PEBT2 Technical Product Specification 22.45 [0.88] 7.01 [0.28] 0.00 11.81 [0.47] 14.40 [0.567] 162.300 Ref [6.390] 20.00±0.13 ] 84.80 [3.339] 125.67 [4.95] 143.12 [5.635] Pictorial View OM15047 Figure 22. I/O Shield Dimensions for Boards with a 2-Channel Audio Subsystem 78
  • Intel D845PEBT2 | Product Specification - Page 79
    the Desktop Board D845PEBT2 and the following: • 2.8 GHz Intel Pentium 4 processor with a 512 KB cache • 32 MB AGP card • 512 MB DDR 266 SDRAM • 3.5-inch diskette drive • 10 GB IDE hard disk drive • 12X IDE DVD/40X CD-ROM drive • IDE Zip† drive This information is provided only as a guide for
  • Intel D845PEBT2 | Product Specification - Page 80
    Desktop Board D845PEBT2 Technical Product Specification 2.11.3 Standby Current Requirements CAUTION If the standby current necessary to support multiple wake events from the PCI and/or USB buses exceeds power supply capacity, the Desktop Board D845PEBT2 may lose register settings stored in memory
  • Intel D845PEBT2 | Product Specification - Page 81
    IBM PS/2 Port Specification (Sept 1991) states 500 mA during normal G0/S0 operation. Only one USB port will support up to 500 mA of stand-by-current (wake-enabled device) the fan connectors on the Desktop Board D845PEBT2. Table 57. Fan Connector Current Capability Fan Connector Processor fan
  • Intel D845PEBT2 | Product Specification - Page 82
    Intel Desktop Board D845PEBT2 Technical Product Specification 2.11.5 Power Supply Considerations CAUTION The +5 V standby line for the power supply must be capable of providing adequate +5 V standby current. Failure to do so can
  • Intel D845PEBT2 | Product Specification - Page 83
    with the reader. Intel makes no warranties or representations that merely following the instructions presented in this document will result in a system with adequate thermal performance. CAUTION Ensure that the ambient temperature does not exceed the Desktop Board D845PEBT2's maximum operating
  • Intel D845PEBT2 | Product Specification - Page 84
    airflow to cool the Desktop Board D845PEBT2. Table 58. Thermal Considerations for Components Component Intel Pentium 4 processor Intel 82845PE MCH Intel 82801DB ICH4 Maximum Case Temperature For processor case temperature, see processor datasheets and processor specification updates 83 oC (under
  • Intel D845PEBT2 | Product Specification - Page 85
    Desktop Board D845PEBT2 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
  • Intel D845PEBT2 | Product Specification - Page 86
    Intel Desktop Board D845PEBT2 Technical Product Specification 2.15 Regulatory Compliance This section describes the Desktop Board D845PEBT2's compliance with U.S. and international safety and electromagnetic compatibility (EMC) regulations. 2.15.1 Safety Regulations Table 60 lists the safety
  • Intel D845PEBT2 | Product Specification - Page 87
    : consists of a unique UL recognized manufacturer's logo, along with a flammability rating (94V-0) (solder side). • PB part number: Intel bare circuit board part number (solder side). For the Desktop Board D845PEBT2, the PB number is A99718-xxx or C10869-xxx (where xxx is any number). The SKU number
  • Intel D845PEBT2 | Product Specification - Page 88
    Intel Desktop Board D845PEBT2 Technical Product Specification 88
  • Intel D845PEBT2 | Product Specification - Page 89
    USB Support 91 3.6 BIOS Updates ...91 3.7 Recovering BIOS Data 92 3.8 Boot Options...93 3.9 Changing the Default Boot Device During POST 94 3.10 Fast Booting Systems with Intel® Rapid BIOS Boot 94 3.11 BIOS Security Features 96 3.1 Introduction The Desktop Board uses an Intel/AMI BIOS that
  • Intel D845PEBT2 | Product Specification - Page 90
    Intel Desktop Board D845PEBT2 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.
  • Intel D845PEBT2 | Product Specification - Page 91
    automated updating while in the Windows environment. Using this utility, the BIOS can be updated from a file on a hard disk, a 1.44 MB diskette, or a CD-ROM, or from the file location on the Web. • Intel® Flash Memory Update Utility, which requires creation of a boot diskette and manual rebooting
  • Intel D845PEBT2 | Product Specification - Page 92
    Intel Desktop Board D845PEBT2 Technical Product Specification ✏ NOTE Review the instructions distributed with the upgrade utility before attempting a BIOS update. For information about The Intel World Wide Web site Refer to Section 1.2, page 16 3.6.1 Language Support The BIOS Setup program and
  • Intel D845PEBT2 | Product Specification - Page 93
    a 120 MB diskette. For information about The BIOS recovery mode jumper settings The Boot menu in the BIOS Setup program Contacting Intel customer support Refer to Section 2.9.1, page 72 Section 4.3, page 99 Section 1.2, page 16 3.8 Boot Options In the BIOS Setup program, the user can choose to
  • Intel D845PEBT2 | Product Specification - Page 94
    Intel Desktop Board D845PEBT2 Technical Product Specification 3.9 Changing the Default Boot Device During POST Pressing the key during POST causes a boot device menu to be displayed. To use this key during POST, the User Access Level in the BIOS Setup program's Security menu must be set to
  • Intel D845PEBT2 | Product Specification - Page 95
    Intel Rapid BIOS Boot. This feature bypasses memory option ROM boot time. ✏ NOTE It is possible to optimize the boot process to the point where the system boots so quickly that the Intel IDE Configuration Submenu of the BIOS Setup program). For information about IDE Configuration Submenu in the BIOS
  • Intel D845PEBT2 | Product Specification - Page 96
    Intel Desktop Board D845PEBT2 Technical Product Specification 3.11 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
  • Intel D845PEBT2 | Product Specification - Page 97
    Setup program options For information about Boot Integrity Services (BIS) Refer to Section 1.4, 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
  • Intel D845PEBT2 | Product Specification - Page 98
    Intel Desktop Board D845PEBT2 Technical Product Specification Table 65 lists the function keys available for menu screens. Table 65. BIOS Setup Program Function Keys BIOS Setup Program Function Key or or Description Selects a different menu screen (Moves
  • Intel D845PEBT2 | Product Specification - Page 99
    memory speed. No options No options No options Displays the size of second-level cache. Displays the total amount of RAM. Displays the amount and type of RAM in the memory banks. • English (default) Selects the current default language used by the BIOS. • (other language loaded on the board
  • Intel D845PEBT2 | Product Specification - Page 100
    Intel Desktop Board D845PEBT2 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 PCI Configuration Boot Configuration Peripheral Configuration IDE Fan Control Configuration
  • Intel D845PEBT2 | Product Specification - Page 101
    Main Advanced Security Power PCI Configuration Boot Configuration Peripheral Configuration IDE Configuration Diskette Configuration Event Log Configuration Video Configuration USB Configuration Chipset Configuration Fan Control Configuration Boot Exit The submenu shown in Table 69 is
  • Intel D845PEBT2 | Product Specification - Page 102
    Intel Desktop Board D845PEBT2 Technical Product Specification Table 69. PCI Configuration Submenu (continued) Feature PCI Slot5 IRQ Priority (Note) Options • Auto (default) • 3 • 5 • 9 • 10 • 11 Description Allows selection of IRQ priority for PCI bus connector 5. Note: Additional interrupts
  • Intel D845PEBT2 | Product Specification - Page 103
    Submenu Feature Options Description Serial Port A Base I/O address (This feature is present only when Serial Port A is set to Enabled) Interrupt (This feature is present only when Serial Port A is set to Enabled) • Disabled Configures serial port A. • Enabled Auto assigns the first free COM
  • Intel D845PEBT2 | Product Specification - Page 104
    Intel Desktop Board D845PEBT2 Technical Product Specification Table 71. Peripheral Configuration Submenu (continued (This feature is present only when Parallel Port Mode is set to ECP) Audio LAN Device Options Description • Disabled Configures the parallel port. • Enabled Auto assigns LPT1 the
  • Intel D845PEBT2 | Product Specification - Page 105
    -menu Description Enables/disables 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 reads and writes. Specifies the hard
  • Intel D845PEBT2 | Product Specification - Page 106
    Intel Desktop Board D845PEBT2 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 D845PEBT2 | Product Specification - Page 107
    BIOS Setup Program 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 Feature Options Diskette Controller Floppy
  • Intel D845PEBT2 | Product Specification - Page 108
    Intel Desktop Board D845PEBT2 Technical Product Specification 4.4.6 Event Log Configuration Submenu To access this menu, select Advanced on the menu bar and then Event Log Configuration. Maintenance Main Advanced Security Power PCI Configuration Boot Configuration Peripheral Configuration IDE
  • Intel D845PEBT2 | Product Specification - Page 109
    Main Advanced Security Power PCI Configuration Boot Configuration Peripheral Configuration IDE Configuration Diskette Configuration Event Log Configuration Video Configuration USB Configuration Chipset Configuration Fan Control Configuration Boot Exit The submenu represented in Table 76 is
  • Intel D845PEBT2 | Product Specification - Page 110
    Intel Desktop Board D845PEBT2 Technical Product Specification 4.4.8 USB Configuration Submenu To access this menu, select Advanced on the menu bar and then USB Configuration. Maintenance Main Advanced Security Power PCI Configuration Boot Configuration Peripheral Configuration IDE Configuration
  • Intel D845PEBT2 | Product Specification - Page 111
    Latency Timer Extended Configuration SDRAM Frequency (Note 1) SDRAM Timing Control (Note 1) Options Description • Disabled • Enabled (default) When set to to the memory detected. Manual - Aggressive = Selects most aggressive user-defined timings. Manual - User Defined = Allows manual override
  • Intel D845PEBT2 | Product Specification - Page 112
    Intel Desktop Board D845PEBT2 Technical Product Specification Table 78. Chipset Configuration Submenu (continued) Feature SDRAM RAS Active to Precharge (Note) SDRAM CAS# Latency (Note) SDRAM RAS# to CAS# Delay (Note) SDRAM RAS# Precharge (Note) Options • 8 • 7 • 6 • 5 (default) • 2.0 (default) •
  • Intel D845PEBT2 | Product Specification - Page 113
    : Feature Options Description Supervisor Password User Password Set Supervisor Password User Access Level (Note 1) No options No options Password can the BIOS Setup Utility. No Access prevents user access to the BIOS Setup Utility. View Only allows the user to view but not change the BIOS Setup
  • Intel D845PEBT2 | Product Specification - Page 114
    Intel Desktop Board D845PEBT2 Technical Product Specification 4.6 Options ACPI Suspend State • 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
  • Intel D845PEBT2 | Product Specification - Page 115
    Intel(R) Rapid BIOS Boot Scan User Flash Area PXE Boot to LAN USB Boot Serial ATA Boot (Note 1) Serial ATA RAID (Note 2) IDE RAID Boot (Note 1) Boot Device Priority Options boot without running certain POST tests. Enables the BIOS to scan the flash memory for user binary files that are executed at
  • Intel D845PEBT2 | Product Specification - Page 116
    Intel Desktop Board D845PEBT2 Technical Product Specification number of attached boot devices) Options • Removable Dev. • Hard Drive • ATAPI CD-ROM • Intel Boot Agent (Notes) • Dev. • Hard Drive • ATAPI CD-ROM • Intel Boot Agent Notes: 1. This option is only available when PXE Boot to LAN is set
  • Intel D845PEBT2 | Product Specification - Page 117
    Hard Disk Drives Submenu Feature 1st Hard Disk Drive (Note) Options Dependent on installed hard drives Description Specifies the boot sequence from 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
  • Intel D845PEBT2 | Product Specification - Page 118
    Intel Desktop Board D845PEBT2 Technical Product Specification ATAPI CD-ROM drives supported by the BIOS. 4.8 Exit Menu 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
  • Intel D845PEBT2 | Product Specification - Page 119
    BIOS Beep Codes ...126 5.1 BIOS Error Messages Table 89 lists the error messages and provides a brief description of each. Table 89. BIOS during the memory test. Could not read sector read/write test of DMA controller. Error occurred trying to access diskette drive controller. Error occurred trying
  • Intel D845PEBT2 | Product Specification - Page 120
    Intel Desktop Board D845PEBT2 Technical Product Specification Table 89. 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
  • Intel D845PEBT2 | Product Specification - Page 121
    test, CPU ID saved, and going to 4 GB flat mode. Do necessary chipset initialization, start memory refresh, and do memory sizing. Verify base memory. Init code to be copied to segment 0 and control to be transferred to segment 0. Control is in segment 0. To check recovery mode and verify main BIOS
  • Intel D845PEBT2 | Product Specification - Page 122
    Intel Desktop Board D845PEBT2 Technical Product Specification Table 92. Runtime Code Uncompressed in F000 Shadow RAM Code 03 05 06 07 08 0B 0C 0E 0F 10 11 12 13 14 19
  • Intel D845PEBT2 | Product Specification - Page 123
    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 controller interface test command. Keyboard controller
  • Intel D845PEBT2 | Product Specification - Page 124
    Intel Desktop Board D845PEBT2 Technical Product Specification memory size mismatch with CMOS. Memory optional ROM control. Initialization after E000 optional ROM control is over. Going to display the system configuration. Put INT13 module runtime image to shadow. Generate MP for multiprocessor support
  • Intel D845PEBT2 | Product Specification - Page 125
    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 gives control messages. 95 Init of different buses optional ROMs from C800 to start. While control is inside the different bus routines,
  • Intel D845PEBT2 | Product Specification - Page 126
    Intel Desktop Board D845PEBT2 Technical Product Specification Table 95 describes the lower nibble of the Figure 1, 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 96). The BIOS also issues a beep code
  • Intel D845PEBT2 | Product Specification - Page 127
    and Beep Codes If POST completes normally, the BIOS issues one short beep before passing control to the operating system. Table 96. Beep Codes Beep Description 1 Refresh failure 2 Parity cannot be reset 3 First 64 KB memory failure 4 Timer not operational 5 Not used 6 8042 GateA20
  • Intel D845PEBT2 | Product Specification - Page 128
    Intel Desktop Board D845PEBT2 Technical Product Specification 128
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September 2002
Order Number:
C15333-001
The Intel
®
Desktop Board D845PEBT2 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 D845PEBT2 Specification Update.
Intel
®
Desktop Board D845PEBT2
Technical Product Specification