October 2002 Order Number: C14584-001 The Intel® Desktop Board D845GEBV2/D845GERG2 may contain design defects or errors known as errata that may
Intel Desktop Board D845GEBV2/D845GERG2 Technical Product Specification x 65. Chipset Configuration Submenu ...
Intel Desktop Board D845GEBV2/D845GERG2 Technical Product Specification 100 Table 56. PCI Configuration Submenu (continued) Feature Options Descript
BIOS Setup Program 101 4.4.3 Peripheral Configuration Submenu To access this submenu, select Advanced on the menu bar and then Peripheral Configurat
Intel Desktop Board D845GEBV2/D845GERG2 Technical Product Specification 102 Table 58. Peripheral Configuration Submenu (continued) Feature Options D
BIOS Setup Program 103 4.4.4 IDE Configuration Submenu To access this submenu, select Advanced on the menu bar and then IDE Configuration. Maintena
Intel Desktop Board D845GEBV2/D845GERG2 Technical Product Specification 104 4.4.4.1 Primary/Secondary IDE Master/Slave Submenus To access these subm
BIOS Setup Program 105 Table 60. Primary/Secondary IDE Master/Slave Submenus (continued) Feature Options Description DMA Mode • Auto (default) •
Intel Desktop Board D845GEBV2/D845GERG2 Technical Product Specification 106 4.4.5 Diskette Configuration Submenu To access this menu, select Advance
BIOS Setup Program 107 4.4.6 Event Log Configuration Submenu To access this menu, select Advanced on the menu bar and then Event Log Configuration.
Intel Desktop Board D845GEBV2/D845GERG2 Technical Product Specification 108 4.4.7 Video Configuration Submenu To access this menu, select Advanced o
BIOS Setup Program 109 4.4.8 USB Configuration Submenu To access this menu, select Advanced on the menu bar and then USB Configuration. Maintenance
11 1 Product Description What This Chapter Contains 1.1 Board Differences...
Intel Desktop Board D845GEBV2/D845GERG2 Technical Product Specification 110 4.4.9 Chipset Configuration Submenu To access this menu, select Advanced
BIOS Setup Program 111 Table 65. Primary/Secondary IDE Master/Slave Submenus (continued) Feature Options Description SDRAM RAS# Active to Precharge
Intel Desktop Board D845GEBV2/D845GERG2 Technical Product Specification 112 4.4.10 Fan Control Configuration Submenu To access this menu, select Adv
BIOS Setup Program 113 4.5 Security Menu To access this menu, select Security from the menu bar at the top of the screen. Maintenance Main Advance
Intel Desktop Board D845GEBV2/D845GERG2 Technical Product Specification 114 4.6 Power Menu To access this menu, select Power from the menu bar at the
BIOS Setup Program 115 4.7 Boot Menu To access this menu, select Boot from the menu bar at the top of the screen. Maintenance Main Advanced Secur
Intel Desktop Board D845GEBV2/D845GERG2 Technical Product Specification 116 4.7.1 Boot Device Priority Submenu To access this menu, select Boot on t
BIOS Setup Program 117 4.7.2 Hard Disk Drives Submenu To access this menu, select Boot on the menu bar and then Hard Disk Drives. Maintenance Main
Intel Desktop Board D845GEBV2/D845GERG2 Technical Product Specification 118 4.7.4 ATAPI CD-ROM Drives Submenu To access this menu, select Boot on th
119 5 Error Messages and Beep Codes What This Chapter Contains 5.1 BIOS Error Messages...
Intel Desktop Board D845GEBV2/D845GERG2 Technical Product Specification 12 1.2 Overview 1.2.1 Feature Summary Table 2 summarizes the major features o
Intel Desktop Board D845GEBV2/D845GERG2 Technical Product Specification 120 Table 76. BIOS Error Messages (continued) Error Message Explanation Che
Error Messages and Beep Codes 121 5.2 Port 80h POST Codes During the POST, the BIOS generates diagnostic progress codes (POST-codes) to I/O port 80h
Intel Desktop Board D845GEBV2/D845GERG2 Technical Product Specification 122 Table 79. Runtime Code Uncompressed in F000 Shadow RAM Code Description
Error Messages and Beep Codes 123 Table 79. Runtime Code Uncompressed in F000 Shadow RAM (continued) Code Description of POST Operation 40 To prep
Intel Desktop Board D845GEBV2/D845GERG2 Technical Product Specification 124 Table 79. Runtime Code Uncompressed in F000 Shadow RAM (continued) Code
Error Messages and Beep Codes 125 Table 79. Runtime Code Uncompressed in F000 Shadow RAM (continued) Code Description of POST Operation AE Uncompr
Intel Desktop Board D845GEBV2/D845GERG2 Technical Product Specification 126 Table 82 describes the lower nibble of the high byte and indicates the bu
Error Messages and Beep Codes 127 If POST completes normally, the BIOS issues one short beep before passing control to the operating system. Table 83
Intel Desktop Board D845GEBV2/D845GERG2 Technical Product Specification 128
Product Description 13 Table 2. Feature Summary (continued) BIOS • Intel/AMI BIOS (resident in the 4 Mbit FWH) • Support for Advanced Configuratio
Intel Desktop Board D845GEBV2/D845GERG2 Technical Product Specification 14 1.2.3 Board Layouts Figure 1 shows the location of the major components on
Product Description 15 Figure 2 shows the location of the major components on the Desktop Board D845GERG2. OM15021GQRSTUV P MONA B DEFILJKHDDCCYZAABB
Intel Desktop Board D845GEBV2/D845GERG2 Technical Product Specification 16 Figure 3 shows the location of the major components on the Desktop Board D
Product Description 17 1.2.4 Block Diagrams Figure 4 is a block diagram of the major functional areas of the Desktop Boards D845GEBV2 and D845GERG2.
Intel Desktop Board D845GEBV2/D845GERG2 Technical Product Specification 18 Figure 5 is a block diagram of the major functional areas of the Desktop B
Product Description 19 1.3 Online Support To find information about… Visit this World Wide Web site: Intel Desktop Boards D845GEBV2 and D845GERG2 u
Revision History Revision Revision History Date -001 First release of the Intel® Desktop Board D845GEBV2/D845GERG2 Technical Product Specification.
Intel Desktop Board D845GEBV2/D845GERG2 Technical Product Specification 20 1.5 Design Specifications Table 4 lists the specifications applicable to t
Product Description 21 Table 4. Specifications (continued) Reference Name Specification Title Version, Revision Date and Ownership The information
Intel Desktop Board D845GEBV2/D845GERG2 Technical Product Specification 22 Table 4. Specifications (continued) Reference Name Specification Title Ve
Product Description 23 1.6 Processor ✏ NOTE Refer to Thermal Considerations (Section 2.12, page 81) for important information when using an Intel Pen
Intel Desktop Board D845GEBV2/D845GERG2 Technical Product Specification 24 1.7 System Memory The Desktop Boards D845GEBV2 and D845GERG2 both have two
Product Description 25 Table 6 lists the supported DDR DIMM configurations. Table 6. Supported DDR DIMM Configurations DIMM Capacity Configuration
Intel Desktop Board D845GEBV2/D845GERG2 Technical Product Specification 26 1.8 Intel® 845GE Chipset The Intel 845GE chipset consists of the following
Product Description 27 1.8.1 Intel 845GE Graphics Subsystem The Intel 845GE chipset contains two separate, mutually exclusive graphics options. Eit
Intel Desktop Board D845GEBV2/D845GERG2 Technical Product Specification 28 Table 8 lists the Direct Draw supported modes. Table 8. Direct Draw Sup
Product Description 29 Table 9 lists the video BIOS video modes supported by the graphics subsystem. Table 9. Video BIOS Video Modes Supported for
iii Preface This Technical Product Specification (TPS) specifies the board layout, components, connectors, power and environmental requirements, an
Intel Desktop Board D845GEBV2/D845GERG2 Technical Product Specification 30 Table 10 lists the supported configuration modes of the graphics subsystem
Product Description 31 Table 11 describes the bpp configuration mode values referenced in Table 10. In Table 11, assume that for each configuration
Intel Desktop Board D845GEBV2/D845GERG2 Technical Product Specification 32 • Increased headroom for larger resolution and color depth • Reduced pow
Product Description 33 1.8.2 USB The Desktop Boards support up to six USB 2.0 ports and fully support UHCI and EHCI and use UHCI- and EHCI-compatible
Intel Desktop Board D845GEBV2/D845GERG2 Technical Product Specification 34 1.8.3 IDE Support 1.8.3.1 IDE Interfaces The ICH4’s IDE controller has two
Product Description 35 1.8.4 Real-Time Clock, CMOS SRAM, and Battery A coin-cell battery (CR2032) powers the real-time clock and CMOS memory. When
Intel Desktop Board D845GEBV2/D845GERG2 Technical Product Specification 36 1.9.3 Diskette Drive Controller The I/O controller supports one diskette
Product Description 37 1.10 Audio Subsystem The audio subsystem consists of the following devices: • Intel 82801DB I/O Controller Hub (ICH4) • Anal
Intel Desktop Board D845GEBV2/D845GERG2 Technical Product Specification 38 1.10.1 Audio Connectors 1.10.1.1 Front Panel Audio Connector A 2 x 5-pin
Product Description 39 1.11 LAN Subsystem (Optional) The Network Interface Controller subsystem consists of the ICH4 (with integrated LAN Media Acce
Intel Desktop Board D845GEBV2/D845GERG2 Technical Product Specification iv CAUTION Cautions are included to help you avoid damaging hardware or losi
Intel Desktop Board D845GEBV2/D845GERG2 Technical Product Specification 40 Table 12. 10/100 Ethernet LAN Connector LED States LED Color LED State
Product Description 41 The interfaces supported by the CNR include the following: • AC ’97 interface: supports audio and/or modem functions on the
Intel Desktop Board D845GEBV2/D845GERG2 Technical Product Specification 42 1.13 Hardware Management Subsystem The hardware management features enabl
Product Description 43 For information about Refer to The location of the fan connectors and sensors for thermal monitoring Figure 10, page 43 1.
Intel Desktop Board D845GEBV2/D845GERG2 Technical Product Specification 44 1.13.2 Fan Monitoring Fan monitoring can be implemented using Intel® Activ
Product Description 45 1.14.1 ACPI ACPI gives the operating system direct control over the power management and Plug and Play functions of a computer
Intel Desktop Board D845GEBV2/D845GERG2 Technical Product Specification 46 1.14.1.1 System States and Power States Under ACPI, the operating system
Product Description 47 1.14.1.2 Wake-up Devices and Events Table 16 lists the devices or specific events that can wake the computer from specific st
Intel Desktop Board D845GEBV2/D845GERG2 Technical Product Specification 48 Resume on Ring enables telephony devices to access the computer when it is
Product Description 49 Table 18. Fan Connector Function/Operation for Desktop Boards with a Hardware Monitoring and Fan Control ASIC Connector Desc
v Contents 1 Product Description 1.1 Board Differences...
Intel Desktop Board D845GEBV2/D845GERG2 Technical Product Specification 50 1.14.2.4 Instantly Available PC Technology CAUTION For Instantly Availab
Product Description 51 1.14.2.5 +5 V Standby Power Indicator LED The +5 V standby power indicator LED shows that power is still present even when th
Intel Desktop Board D845GEBV2/D845GERG2 Technical Product Specification 52 1.14.2.7 Wake from USB USB bus activity wakes the computer from ACPI S1 o
53 2 Technical Reference What This Chapter Contains 2.1 Introduction...
Intel Desktop Board D845GEBV2/D845GERG2 Technical Product Specification 54 2.3 Fixed I/O Map Table 20. I/O Map Address (hex) Size Description 000
Technical Reference 55 2.4 DMA Channels Table 21. DMA Channels DMA Channel Number Data Width System Resource 0 8 or 16 bits Open 1 8 or 16 bits
Intel Desktop Board D845GEBV2/D845GERG2 Technical Product Specification 56 2.6 Interrupts The interrupts can be routed through either the Programmabl
Technical Reference 57 2.7 PCI Interrupt Routing Map This section describes interrupt sharing and how the interrupt signals are connected between th
Intel Desktop Board D845GEBV2/D845GERG2 Technical Product Specification 58 Table 24. PCI Interrupt Routing Map ICH4 PIRQ Signal Name PCI Interrupt
Technical Reference 59 2.8 Connectors CAUTION Only the back panel USB, front panel USB, VGA, and PS/2 connectors of the Desktop Boards D845GEBV2 an
Intel Desktop Board D845GEBV2/D845GERG2 Technical Product Specification vi 2.4 DMA Channels ...
Intel Desktop Board D845GEBV2/D845GERG2 Technical Product Specification 60 2.8.1 Back Panel Connectors Figure 12 shows the location of the back pane
Technical Reference 61 ✏ NOTE The back panel audio line out connector is designed to power headphones or amplified speakers only. Poor audio quality
Intel Desktop Board D845GEBV2/D845GERG2 Technical Product Specification 62 2.8.2.2 Audio, Power, and Hardware Control Connectors Figure 13 shows the
Technical Reference 63 Figure 14 shows the location of the audio, power, and hardware control connectors on the Desktop Board D845GERG2 with the Giga
Intel Desktop Board D845GEBV2/D845GERG2 Technical Product Specification 64 Table 25. Front Panel Audio Connector Pin Signal Name Pin Signal Name
Technical Reference 65 # INTEGRATOR’S NOTES • Use only ATX12V-compliant power supplies with these boards. ATX12V power supplies have an additional
Intel Desktop Board D845GEBV2/D845GERG2 Technical Product Specification 66 Table 31. Main Power Connector Pin Signal Name Pin Signal Name 1 +3.3 V
Technical Reference 67 2.8.2.3 Add-in Board and Peripheral Interface Connectors Figure 15 shows the location of the add-in board connector and perip
Intel Desktop Board D845GEBV2/D845GERG2 Technical Product Specification 68 OM15022124039123334124039HFGIA C EB D Item Description Item Description A
Technical Reference 69 2.8.3 External I/O Connectors Figure 17 shows the locations of the external I/O connectors. OM1358071021982113ABC Item Descr
Contents vii 3.9 Fast Booting Systems with Intel® Rapid BIOS Boot...93 3.9.1 Peripheral Selection
Intel Desktop Board D845GEBV2/D845GERG2 Technical Product Specification 70 2.8.3.1 Front Panel Connector This section describes the functions of the
Technical Reference 71 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 37 shows
Intel Desktop Board D845GEBV2/D845GERG2 Technical Product Specification 72 2.9 Jumper Blocks CAUTION Do not move any jumpers with the power on. Alw
Technical Reference 73 Table 40 describes the two configurations of this connector/jumper block. CAUTION Do not place jumpers on this block in any c
Intel Desktop Board D845GEBV2/D845GERG2 Technical Product Specification 74 2.10 Mechanical Considerations 2.10.1 D845GEBV2 Form Factor The Desktop B
Technical Reference 75 2.10.2 D845GERG2 Form Factor The Desktop Board D845GERG2 is designed to fit into either a microATX or an ATX-form-factor chas
Intel Desktop Board D845GEBV2/D845GERG2 Technical Product Specification 76 2.10.3 I/O Shield The back panel I/O shield for the Desktop Boards D845GEB
Technical Reference 77 OM150240.063 0.005[1.600 0.120]8X R0.5 MIN0.472[12.000]0.465[11.810]0.027[0.690]0.519[13.190]3x Dia 0.330 [8.380]6.390[1
Intel Desktop Board D845GEBV2/D845GERG2 Technical Product Specification 78 2.11 Electrical Considerations 2.11.1 Power Consumption Table 42 lists vol
Technical Reference 79 2.11.3 Standby Current Requirements CAUTION If the standby current necessary to support multiple wake events from the PCI an
Intel Desktop Board D845GEBV2/D845GERG2 Technical Product Specification viii Figures 1. Desktop Board D845GEBV2 Components ...
Intel Desktop Board D845GEBV2/D845GERG2 Technical Product Specification 80 ✏ NOTE IBM PS/2 Port Specification (Sept 1991) states: • 275 mA for keybo
Technical Reference 81 2.11.5 Power Supply Considerations CAUTION The +5 V standby line for the power supply must be capable of providing adequate
Intel Desktop Board D845GEBV2/D845GERG2 Technical Product Specification 82 CAUTION Ensure that the ambient temperature does not exceed the Desktop B
Technical Reference 83 Table 45 provides maximum case temperatures for the Desktop Board D845GEBV2/D845GERG2 components that are sensitive to thermal
Intel Desktop Board D845GEBV2/D845GERG2 Technical Product Specification 84 2.13 Reliability The Mean Time Between Failures (MTBF) prediction is calcu
Technical Reference 85 2.15 Regulatory Compliance This section describes the Desktop Boards’ compliance with U.S. and international safety and electr
Intel Desktop Board D845GEBV2/D845GERG2 Technical Product Specification 86 2.15.3 Product Certification Markings (Board Level) The Desktop Boards D8
87 3 Overview of BIOS Features What This Chapter Contains 3.1 Introduction...
Intel Desktop Board D845GEBV2/D845GERG2 Technical Product Specification 88 3.3 Resource Configuration 3.3.1 PCI Autoconfiguration The BIOS can automa
Overview of BIOS Features 89 3.4 System Management BIOS (SMBIOS) SMBIOS is a Desktop Management Interface (DMI) compliant method for managing comput
Contents ix 18. Fan Connector Function/Operation for Desktop Boards with a Hardware Monitoring and Fan Control ASIC...
Intel Desktop Board D845GEBV2/D845GERG2 Technical Product Specification 90 To install an operating system that supports USB, verify that Legacy USB s
Overview of BIOS Features 91 3.6.2 Custom Splash Screen During POST, an Intel splash screen is displayed by default. This splash screen can be repl
Intel Desktop Board D845GEBV2/D845GERG2 Technical Product Specification 92 3.8 Boot Options In the BIOS Setup program, the user can choose to boot fr
Overview of BIOS Features 93 3.9 Fast Booting Systems with Intel® Rapid BIOS Boot These factors affect system boot speed: • Selecting and configuri
Intel Desktop Board D845GEBV2/D845GERG2 Technical Product Specification 94 3.10 BIOS Security Features The BIOS includes security features that rest
95 4 BIOS Setup Program What This Chapter Contains 4.1 Introduction...
Intel Desktop Board D845GEBV2/D845GERG2 Technical Product Specification 96 Table 52 lists the function keys available for menu screens. Table 52. BI
BIOS Setup Program 97 4.3 Main Menu To access this menu, select Main on the menu bar at the top of the screen. Maintenance Main Advanced Security
Intel Desktop Board D845GEBV2/D845GERG2 Technical Product Specification 98 4.4 Advanced Menu To access this menu, select Advanced on the menu bar at
BIOS Setup Program 99 4.4.1 PCI Configuration Submenu To access this submenu, select Advanced on the menu bar and then PCI Configuration. Maintenan
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