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Order Number: E35350-001US ® The Intel Desktop Board DG35EC 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 DG35EC Specification Update.
Current characterized errata are available on request. Contact your local Intel sales office or your distributor to obtain the latest specifications before placing your product order.
Preface This Technical Product Specification (TPS) specifies the board layout, components, ® connectors, power and environmental requirements, and the BIOS for the Intel Desktop Board DG35EC. It describes the standard product and available manufacturing options. Intended Audience The TPS is intended to provide detailed, technical information about the Desktop Board DG35EC and its components to the vendors, system integrators, and other engineers and technicians who need this level of information.
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Intel Desktop Board DG35EC Technical Product Specification Other Common Notation Used after a signal name to identify an active-low signal (such as USBP0#) Gigabyte (1,073,741,824 bytes) GB/sec Gigabytes per second Gbit Gigabit (1, 073,741,824 bits) Kilobyte (1024 bytes) Kbit Kilobit (1024 bits)
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Contents Figures Major Board Components..............12 Block Diagram ................14 Memory Channel Configuration and DIMM Configuration......18 Back Panel Audio Connector Options ..........25 LAN Connector LED Locations ............27 Thermal Sensors and Fan Headers ............. 29 Location of the Standby Power Indicator LED ........36 Detailed System Memory Address Map ..........
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Intel Desktop Board DG35EC Technical Product Specification 29. Desktop Board DG35EC Environmental Specifications ......56 30. BIOS Setup Program Menu Bar............58 31. BIOS Setup Program Function Keys............ 58 32. AcceptableDrives/Media Types for BIOS Recovery ........ 62 33. Boot Device Menu Options ..............63 34.
• One IEEE 1394a port and one IEEE 1394a header • PS/2 keyboard and mouse ports • One serial port header (may require specialized chassis or cable for use) ® LAN Support Gigabit (10/100/1000 Mbits/sec) LAN subsystem using the Intel 82566DC Gigabit Ethernet Controller ® • Intel...
Product Description Table 1. Feature Summary (continued) • One PCI Conventional bus connector Expansion Capabilities • Two PCI Express x1 bus add-in card connector • One PCI Express x16 bus add-in card connector • Voltage sense to detect out of range power supply voltages Hardware Monitor Subsystem •...
Intel Desktop Board DG35EC Technical Product Specification 1.1.2 Board Layout Figure 1 shows the location of the major components. Figure 1. Major Board Components Table 2 lists the components identified in Figure 1.
Serial ATA connectors [4] Front panel header Auxiliary front panel power LED header Front panel USB header Front panel USB header Intel 82801HB I/O Controller Hub (ICH8) Intel 82G35 GMCH BIOS Setup configuration jumper block Battery S/PDIF connector Front panel audio header...
Intel Desktop Board DG35EC Technical Product Specification 1.1.3 Block Diagram Figure 2 is a block diagram of the major functional areas. Figure 2. Block Diagram...
Processor The board is designed to support the following processors: • Intel Core 2 Quad processor in an LGA775 socket with a 1333 MHz or 1066 MHz system bus • Intel Core 2 Duo processor in an LGA775 socket with a 1333 MHz or 1066 or 800 MHz system bus •...
Intel Desktop Board DG35EC Technical Product Specification INTEGRATOR’S NOTE Use only ATX12V-compliant power supplies. For information about Refer to Power supply connectors Section 2.2.2.4, page 46 System Memory The board has four DIMM sockets and supports the following memory features: •...
Product Description 1.5.1 Memory Configurations The Intel 82G35 GMCH supports the following types of memory organization: • Dual channel (Interleaved) mode. This mode offers the highest throughput for real world applications. Dual channel mode is enabled when the installed memory capacities of both DIMM channels are equal.
Intel Desktop Board DG35EC Technical Product Specification Figure 3 illustrates the memory channel and DIMM configuration. NOTE The DIMM 0 sockets of both channels are blue. The DIMM 1 sockets of both channels are black. Figure 3. Memory Channel Configuration and DIMM Configuration INTEGRATOR’S NOTE...
Either the Intel Graphics Media Accelerator X3500 (Intel GMA X3500) graphics controller (contained within the 82G35 GMCH) is used, or a PCI Express x16 add-in card can be used. When a PCI Express x16 add-in card is installed, the Intel GMA X3500 graphics controller is disabled.
Intel Desktop Board DG35EC Technical Product Specification • Video ⎯ Software DVD at 30 fps full screen ⎯ DVMT support up to 256 MB ⎯ HD DVD and Blu-ray* playback support • Display ⎯ High-Definition Multimedia Interface (HDMI) support ⎯ Supports analog displays up to 2048 x 1536 at 75 Hz refresh (QXGA) ⎯...
225 MHz pixel clock to the PCI Express x16 connector. When an ADD2/MEC card is detected, the Intel GMA X3500 graphics controller is enabled and the PCI Express x16 connector is configured for SDVO mode. SDVO mode enables the SDVO ports to be accessed by the ADD2/MEC card.
Intel Desktop Board DG35EC Technical Product Specification NOTE Many Serial ATA drives use new low-voltage power connectors and require adapters or power supplies equipped with low-voltage power connectors. For more information, see: http://www.serialata.org/ For information about Refer to The location of the Serial ATA connectors...
Product Description Real-Time Clock Subsystem A coin-cell battery (CR2032) powers the real-time clock and CMOS memory. When the computer is not plugged into a wall socket, the battery has an estimated life of three years. When the computer is plugged in, the standby current from the power supply extends the life of the battery.
A signal-to-noise (S/N) ratio of 95 dB • Independent 5.1 audio playback from back panel connectors and stereo playback from the Intel High Definition Audio front panel header. NOTE Systems built with AC 97 front panel will not be able to obtain the Microsoft Windows Vista* logo after June 2007.
Product Description 1.10.1 Audio Subsystem Software Audio software and drivers are available from Intel’s World Wide Web site. For information about Refer to Obtaining audio software and drivers Section 1.2, page 15 1.10.2 Audio Connectors and Headers The board contains audio connectors on the back panel and audio headers on the component side of the board.
Refer to LAN software and drivers http://downloadcenter.intel.com ® 1.11.1 Intel 82566DC Gigabit Ethernet Controller The Intel 82566DC Gigabit Ethernet Controller supports the following features: • PCI Express link • 10/100/1000 IEEE 802.3 compliant • Compliant to IEEE 802.3x flow control support •...
Product Description 1.11.2 LAN Subsystem Software LAN software and drivers are available from Intel’s World Wide Web site. For information about Refer to Obtaining LAN software and drivers Section 1.2, page 15 1.11.3 RJ-45 LAN Connector with Integrated LEDs Two LEDs are built into the RJ-45 LAN connector (shown in Figure 5 below).
Intel Desktop Board DG35EC Technical Product Specification 1.12 Hardware Management Subsystem The hardware management features enable the board to be compatible with the Wired for Management (WfM) specification. The board has several hardware management features, including the following: • Fan monitoring and control •...
Product Description 1.12.4 Thermal Monitoring Figure 6 shows the locations of the thermal sensors and fan headers. Item Description Rear chassis fan Thermal diode, located on processor die Processor fan Front chassis fan Thermal diode, located on the ICH8 die Thermal diode, located on the GMCH die Figure 6.
Intel Desktop Board DG35EC Technical Product Specification 1.13 Power Management Power management is implemented at several levels, including: • Software support through Advanced Configuration and Power Interface (ACPI) • Hardware support: ⎯ Power connector ⎯ Fan headers ⎯ LAN wake capabilities ⎯...
Product Description 1.13.1.1 System States and Power States Under ACPI, the operating system directs all system and device power state transitions. The operating system puts devices in and out of low-power states based on user preferences and knowledge of how devices are being used by applications. Devices that are not being used can be turned off.
Intel Desktop Board DG35EC Technical Product Specification 1.13.1.2 ENERGY STAR* In 2007, the US Department of Energy and the US Environmental Protection Agency revised the ENERGY STAR* requirements. Intel has worked directly with these two ® governmental agencies to define the new requirements. Currently this Intel Desktop Board meets the Cat B requirements.
Product Description 1.13.2 Hardware Support CAUTION Ensure that the power supply provides adequate +5 V standby current if LAN wake capabilities and Instantly Available PC technology features are used. Failure to do so can damage the power supply. The total amount of standby current required depends on the wake devices supported and manufacturing options.
Intel Desktop Board DG35EC Technical Product Specification 1.13.2.2 Fan Headers The function/operation of the fan headers is as follows: • The fans are on when the board is in the S0 state. • The fans are off when the board is off or in the S3, S4, or S5 state.
Product Description 1.13.2.4 Instantly Available PC Technology CAUTION For Instantly Available PC technology, the +5 V standby line from the power supply must be capable of providing adequate +5 V standby current. Failure to provide adequate standby current when implementing Instantly Available PC technology can damage the power supply.
Intel Desktop Board DG35EC Technical Product Specification 1.13.2.9 +5 V Standby Power Indicator LED The +5 V standby power indicator LED shows that power is still present even when the computer appears to be off. Figure 7 shows the location of the standby power indicator LED.
GMCH base address registers, internal graphics ranges, PCI Express ports (up to 512 MB) • Memory-mapped I/O that is dynamically allocated for PCI Conventional and PCI Express add-in cards • Intel Management Engine support (6 MB) • Base graphics memory support (1 MB or 8 MB)
Intel Desktop Board DG35EC Technical Product Specification The amount of installed memory that can be used will vary based on add-in cards and BIOS settings. Figure 8 shows a schematic of the system memory map. All installed system memory can be used when there is no overlap of system addresses.
Intel Desktop Board DG35EC Technical Product Specification Connectors and Headers CAUTION Only the following connectors and headers have overcurrent protection: Back panel and front panel USB, PS/2, and VGA. The other internal connectors/headers are not overcurrent protected and should connect only to devices inside the computer’s chassis, such as fans and internal peripherals.
Technical Reference 2.2.1 Back Panel Connectors Figure 9 shows the locations of the back panel connectors. Item Description PS/2 mouse port PS/2 keyboard port VGA port DVI-D port IEEE 1394a port USB ports [2] USB ports [2] USB ports [2] Line in Mic in Line out...
Intel Desktop Board DG35EC Technical Product Specification 2.2.2 Component-side Connectors and Headers Figure 10 shows the locations of the component-side connectors and headers. Figure 10. Component-side Connectors and Headers...
Intel Desktop Board DG35EC Technical Product Specification 2.2.2.1 Signal Tables for the Connectors and Headers Table 11. Serial ATA Connectors Signal Name Ground Ground Ground Table 12. Chassis Intrusion Header Signal Name Intruder Ground Table 13. Serial Port Header Signal Name...
Technical Reference Table 16. S/PDIF Connector Signal Name S/PDIF out Ground Table 17. Front Panel Audio Header Signal Name Signal Name [Port 1] Left channel Ground [Port 1] Right channel PRESENCE# (Dongle present) [Port 2] Right channel [Port 1] SENSE_RETURN SENSE_SEND (Jack detection) Key (no pin) [Port 2] Left channel...
Main power – a 2 x 12 connector. This connector is compatible with 2 x 10 connectors previously used on Intel Desktop boards. The board supports the use of ATX12V power supplies with either 2 x 10 or 2 x 12 main power cables. When...
Technical Reference 2.2.2.5 Front Panel Header This section describes the functions of the front panel header. Table 21 lists the signal names of the front panel header. Figure 11 is a connection diagram for the front panel header. Table 21. Front Panel Header Signal Description Signal...
Intel Desktop Board DG35EC Technical Product Specification 2.2.2.5.2 Reset Switch Header Pins 5 and 7 can be connected to a momentary single pole, single throw (SPST) type switch that is normally open. When the switch is closed, the board resets and runs the POST.
Technical Reference 2.2.2.7 Front Panel USB Headers Figure 12 is a connection diagram for the front panel USB headers. INTEGRATOR’S NOTES • The +5 V DC power on the front panel USB headers is fused. • Use only a front panel USB connector that conforms to the USB 2.0 specification for high-speed USB devices.
Intel Desktop Board DG35EC Technical Product Specification Jumper Block CAUTION Do not move the jumper with the power on. Always turn off the power and unplug the power cord from the computer before changing a jumper setting. Otherwise, the board could be damaged.
Technical Reference Mechanical Considerations 2.4.1 Form Factor The board is designed to fit into an ATX- or microATX-form-factor chassis. Figure 14 illustrates the mechanical form factor of the board. Dimensions are given in inches [millimeters]. The outer dimensions are 9.60 inches by 9.60 inches [243.84 millimeters by 243.84 millimeters].
Intel Desktop Board DG35EC Technical Product Specification Electrical Considerations 2.5.1 Power Supply Considerations CAUTION The +5 V standby line from the power supply must be capable of providing adequate +5 V standby current. Failure to do so can damage the power supply. The total amount of standby current required depends on the wake devices supported and manufacturing options.
Failure to ensure appropriate airflow may result in reduced performance of both the processor and/or voltage regulator or, in some instances, damage to the board. For a list of chassis that have been tested with Intel desktop boards please refer to the following website: http://developer.intel.com/design/motherbd/cooling.htm...
Intel Desktop Board DG35EC Technical Product Specification CAUTION Ensure that proper airflow is maintained in the processor voltage regulator circuit. Failure to do so may result in damage to the voltage regulator circuit. The processor voltage regulator area (shown in Figure 15) can reach a temperature of up to 95 C in an open chassis.
Table 28. Thermal Considerations for Components Component Maximum Case Temperature Processor For processor case temperature, see processor datasheets and processor specification updates Intel 82G35 GMCH C (under bias) Intel 82801HB (ICH8) C (under bias) For information about Refer to Processor datasheets and specification updates Section 1.2, page 15...
Intel Desktop Board DG35EC Technical Product Specification Environmental Table 29 lists the environmental specifications for the board. Table 29. Desktop Board DG35EC Environmental Specifications Parameter Specification Temperature Non-Operating -40 °C to +70 °C Operating 0 °C to +55 °C Shock...
3.10 BIOS Security Features ..............65 Introduction The board uses an Intel BIOS that is stored in the Serial Peripheral Interface Flash Memory (SPI Flash) and can be updated using a disk-based program. The SPI Flash contains the BIOS Setup program, POST, the PCI auto-configuration utility, and Plug and Play support.
Intel Desktop Board DG35EC Technical Product Specification Table 30 lists the BIOS Setup program menu features. Table 30. BIOS Setup Program Menu Bar Maintenance Main Advanced Security Power Boot Exit Clears Displays Configures Sets Configures Selects boot Saves or passwords and...
Overview of BIOS Features 3.3.2 PCI IDE Support If you select Auto in the BIOS Setup program, the BIOS automatically sets up the PCI IDE connector with independent I/O channel support. The IDE interface supports hard drives up to ATA-66/100 and recognizes any ATAPI compliant devices, including CD-ROM drives, tape drives, and Ultra DMA drives.
Legacy USB support from the BIOS is no longer used. 7. Additional USB legacy feature options can be access by using Intel Integrator Toolkit. To install an operating system that supports USB, verify that Legacy USB support in the BIOS Setup program is set to Enabled and follow the operating system’s...
For information about Refer to BIOS update utilities http://support.intel.com/support/motherboards/desktop/s b/CS-022312.htm. 3.6.1 Language Support The BIOS Setup program and help messages are supported in US English. Additional languages are available in the Integrator’s Toolkit utility. Check the Intel website for details.
Integrator Toolkit that is available from Intel can be used to create a custom splash screen. NOTE If you add a custom splash screen, it will share space with the Intel branded logo. Refer to For information about Intel Integrator Toolkit http://developer.intel.com/design/motherbd/software/itk/...
Overview of BIOS Features Boot Options In the BIOS Setup program, the user can choose to boot from a diskette drive, hard drive, USB drive, USB flash drive, CD-ROM, or the network. The default setting is for the diskette drive to be the first boot device, the hard drive second, and the ATAPI CD-ROM third.
It is possible to optimize the boot process to the point where the system boots so quickly that the Intel logo screen (or a custom logo splash screen) will not be seen. Monitors and hard disk drives with minimum initialization times can also contribute to a boot time that might be so fast that necessary logo screens and POST messages cannot be seen.
Overview of BIOS Features 3.10 BIOS Security Features The BIOS includes security features that restrict access to the BIOS Setup program and who can boot the computer. A supervisor password and a user password can be set for the BIOS Setup program and for booting the computer, with the following restrictions: •...
Error Messages and Beep Codes What This Chapter Contains 4.1 Speaker ..................67 4.2 BIOS Beep Codes ................67 4.3 BIOS Error Messages ............... 67 4.4 Port 80h POST Codes ............... 68 Speaker The board-mounted speaker provides audible error code (beep code) information during POST.
Intel Desktop Board DG35EC Technical Product Specification Port 80h POST Codes During the POST, the BIOS generates diagnostic progress codes (POST codes) to I/O port 80h. If the POST fails, execution stops and the last POST code generated is left at port 80h.
Error Messages and Beep Codes Table 38. Port 80h POST Codes POST Code Description of POST Operation Host Processor Power-on initialization of the host processor (Boot Strap Processor) Host processor Cache initialization (including APs) Starting Application processor initialization SMM initialization Chipset Initializing a chipset component Memory...
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Intel Desktop Board DG35EC Technical Product Specification Table 38. Port 80h POST Codes (continued) POST Code Description of POST Operation Keyboard (PS/2 or USB) Resetting keyboard Disabling keyboard Detecting presence of keyboard Enabling the keyboard Clearing keyboard input buffer Instructing keyboard controller to run Self Test (PS/2 only)
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Error Messages and Beep Codes Table 38. Port 80h POST Codes (continued) POST Code Description of POST Operation DXE Drivers Waiting for user input Checking password Entering BIOS setup Calling Legacy Option ROMs Runtime Phase/EFI OS Boot Entering Sleep state Exiting Sleep state EFI boot service ExitBootServices ( ) has been called EFI runtime service SetVirtualAddressMap ( ) has been called...
Regulatory Compliance and Battery Disposal Information What This Chapter Contains 5.1 Regulatory Compliance..............73 5.2 Battery Disposal Information............. 81 Regulatory Compliance This section contains the following regulatory compliance information for Desktop Board DG35EC: • Safety standards • European Union Declaration of Conformity statement •...
European Union Declaration of Conformity Statement ® We, Intel Corporation, declare under our sole responsibility that the product Intel Desktop Board DG35EC is in conformity with all applicable essential requirements necessary for CE marking, following the provisions of the European Council Directive 2004/108/EC (EMC Directive) and 2006/95/EC (Low Voltage Directive).
请参考 http://www.intel.com/intel/other/ehs/product_ecology 了解此计划的详情,包括涉及产品之范围、回收地点、运送指导、条款和条件等。 Deutsch Als Teil von Intels Engagement für den Umweltschutz hat das Unternehmen das Intel Produkt-Recyclingprogramm implementiert, das Einzelhandelskunden von Intel Markenprodukten ermöglicht, gebrauchte Produkte an ausgewählte Standorte für ordnungsgemäßes Recycling zurückzugeben. Details zu diesem Programm, einschließlich der darin eingeschlossenen Produkte, verfügbaren Standorte, Versandanweisungen, Bedingungen usw., finden Sie auf der...
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Français Dans le cadre de son engagement pour la protection de l'environnement, Intel a mis en œuvre le programme Intel Product Recycling Program (Programme de recyclage des produits Intel) pour permettre aux consommateurs de produits Intel de recycler les produits usés en les retournant à...
Regulatory Compliance and Battery Disposal Information Russian В качестве части своих обязательств к окружающей среде, в Intel создана программа утилизации продукции Intel (Product Recycling Program) для предоставления конечным пользователям марок продукции Intel возможности возврата используемой продукции в специализированные пункты для должной...
Intel Desktop Board DG35EC Technical Product Specification Table 41 shows the various forms of the “Lead-Free 2 Level Interconnect” mark as it appears on the board and accompanying collateral. Table 41. Lead-Free Board Markings Description Mark Lead-Free 2 Level Interconnect: This symbol is...
Regulatory Compliance and Battery Disposal Information 5.1.4 EMC Regulations Desktop Board DG35EC complies with the EMC regulations stated in Table 42 when correctly installed in a compatible host system. Table 42. EMC Regulations Regulation Title FCC 47 CFR Part 15, Title 47 of the Code of Federal Regulations, Part15, Subpart B, Radio Subpart B Frequency Devices.
China RoHS/Environmentally Friendly Use Period Logo: This is an example of the symbol used on Intel Desktop Boards and associated collateral. The color of the mark may vary depending upon the application. The Environmental Friendly Usage Period (EFUP) for Intel Desktop Boards has been determined...
Regulatory Compliance and Battery Disposal Information Battery Disposal Information CAUTION Risk of explosion if the battery is replaced with an incorrect type. Batteries should be recycled where possible. Disposal of used batteries must be in accordance with local environmental regulations. PRECAUTION Risque d'explosion si la pile usagée est remplacée par une pile de type incorrect.
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Intel Desktop Board DG35EC Technical Product Specification PRECAUCIÓN Existe peligro de explosión si la pila no se cambia de forma adecuada. Utilice solamente pilas iguales o del mismo tipo que las recomendadas por el fabricante del equipo. Para deshacerse de las pilas usadas, siga igualmente las instrucciones del fabricante.
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Regulatory Compliance and Battery Disposal Information AWAS Risiko letupan wujud jika bateri digantikan dengan jenis yang tidak betul. Bateri sepatutnya dikitar semula jika boleh. Pelupusan bateri terpakai mestilah mematuhi peraturan alam sekitar tempatan. OSTRZEŻENIE Istnieje niebezpieczeństwo wybuchu w przypadku zastosowania niewłaściwego typu baterii.
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