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Desktop Board D425KTW 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 D425KT and Intel Desktop Board D425KTW Specification Update.
North America 1-800-548-4725, Europe 44-0-1793-431-155, France 44-0-1793-421-777, Germany 44-0-1793-421-333, other Countries 708-296-9333. Intel, the Intel logo, and Intel Atom are trademarks of Intel Corporation in the United States and other countries. * Other names and brands may be claimed as the property of others.
Intended Audience The TPS is intended to provide detailed, technical information about the Intel Desktop Board D425KT and Intel Desktop Board D425KTW 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 D425KT and Intel Desktop Board D425KTW 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/s Gigabytes per second Gbit Gigabit (1,073,741,824 bits) Kilobyte (1024 bytes)
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Intel Desktop Board D425KT and Intel Desktop Board D425KTW Technical Product Specification 2.7 Power Consumption ................. 57 2.7.1 Minimum Load Configuration..........57 2.7.2 Maximum Load Configuration ..........57 2.8 Reliability ..................58 2.9 Environmental ................59 3 Overview of BIOS Features ..........61 3.1 Introduction ...................
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11. Connection Diagram for Front Panel Header ........46 12. Connection Diagram for Front Panel USB Header........48 13. Connection Diagram for Front Panel USB Header with Intel Z-U130 USB Solid-State Drive or Compatible Device Support (D425KTW only) ... 48 14.
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Intel Desktop Board D425KT and Intel Desktop Board D425KTW Technical Product Specification 23. Power Connector ................45 24. Front Panel Header ................46 25. States for a One-Color Power LED ............47 26. BIOS Configuration Jumper Settings........... 50 27. Fan Header Current Capability............52 28.
Product Description Overview 1.1.1 Feature Summary Table 1 summarizes the major features of Intel Desktop Board D425KT and Intel Desktop Board D425KTW. Table 1. Feature Summary Form Factor Mini-ITX, (6.7 inches by 6.7 inches [170 millimeters by 170 millimeters]) compatible with microATX...
Intel Desktop Board D425KT and Intel Desktop Board D425KTW Technical Product Specification Table 1. Feature Summary (continued) ® • Intel BIOS (resident in the SPI Flash device) BIOS • Support for Advanced Configuration and Power Interface (ACPI), Plug and Play, and SMBIOS •...
Product Description 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.
Intel Desktop Board D425KT and Intel Desktop Board D425KTW Technical Product Specification Online Support To find information about… Visit this World Wide Web site: Intel Desktop Board D425KT and http://www.intel.com/products/motherboard/index.htm Intel Desktop Board D425KTW Desktop Board Support http://www.intel.com/p/en_US/support?iid=hdr+support Available configurations for the Intel http://ark.intel.com...
Intel Desktop Board D425KT and Intel Desktop Board D425KTW Technical Product Specification System Memory The board has two 204-pin DDR3 SO-DIMM sockets and supports the following memory features: • DDR3 SDRAM SO-DIMMs with gold-plated contacts • Unbuffered, single-sided or double-sided SO-DIMMs •...
Intel NM10 Express Chipset The Intel NM10 Express Chipset provides interfaces to the processor and the USB, SATA, LPC, LAN, PCI, and PCI Express interfaces. The Intel NM10 Express Chipset is a centralized controller for the board’s I/O paths. NOTE The board is designed to be passively cooled in a properly ventilated chassis.
Support for LVDS (D425KTW only) configuration complies with the following: ® 1. “Unlocking” of critical settings of the LVDS configuration is supported via Intel Integrator Toolkit’s command-line tool. 2. Critical settings of the LVDS configuration are not exposed through Intel Integrator ®...
⎯ Two ports are implemented with a dual port internal header for front panel cabling ⎯ One port is implemented with an internal header (brown-colored) that supports ® an Intel Z-U130 USB Solid-State Drive or compatible device NOTE Computer systems that have an unshielded cable attached to a USB port may not meet FCC Class B requirements, even if no device is attached to the cable.
Intel Desktop Board D425KT and Intel Desktop Board D425KTW Technical Product Specification 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.
PCI Conventional bus power management ⎯ Supports ACPI technology ⎯ Supports LAN wake capabilities 1.8.1 LAN Subsystem Drivers LAN drivers are available from Intel’s World Wide Web site. For information about Refer to Obtaining LAN drivers Section 1.2, page 14...
Intel Desktop Board D425KT and Intel Desktop Board D425KTW Technical Product Specification 1.8.2 RJ-45 LAN Connector with Integrated LEDs Two LEDs are built into the RJ-45 LAN connector (shown in Figure 3). Figure 3. LAN Connector LED Locations Table 4 describes the LED states when the board is powered up and the 10/100 Mbits/s LAN subsystem is operating.
The back panel audio jacks are capable of retasking according to the user’s definition, or can be automatically switched depending on the recognized device type. • Front panel Intel HD Audio and AC ’97 audio support • 3-port analog audio out stack •...
Intel Desktop Board D425KT and Intel Desktop Board D425KTW Technical Product Specification 1.9.1 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 14 1.9.2...
Product Description 1.10 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: • Thermal and voltage monitoring • Chassis intrusion detection 1.10.1 Hardware Monitoring The hardware monitoring and fan control subsystem is based on the Winbond...
Intel Desktop Board D425KT and Intel Desktop Board D425KTW Technical Product Specification 1.10.2 Thermal Monitoring Figure 5 shows the locations of the thermal sensors and fan header. Item Description Chassis fan header Remote thermal sensor Thermal diode, located on the processor die...
Product Description 1.11 Power Management Power management is implemented at several levels, including: • Software support through Advanced Configuration and Power Interface (ACPI) • Hardware support: ⎯ Power connector ⎯ Fan header ⎯ LAN wake capabilities ⎯ Instantly Available PC technology ⎯...
Intel Desktop Board D425KT and Intel Desktop Board D425KTW Technical Product Specification 1.11.1.1 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.
Product Description 1.11.1.2 Wake-up Devices and Events Table 8 lists the devices or specific events that can wake the computer from specific states. Table 8. Wake-up Devices and Events These devices/events can wake up the computer… …from this state (Note 1) S1, S3, S4, S5 (Note 1) PME# signal...
Intel Desktop Board D425KT and Intel Desktop Board D425KTW Technical Product Specification 1.11.2 Hardware Support The board provides several power management hardware features, including: • Power connector • Fan header • LAN wake capabilities • Instantly Available PC technology •...
Product Description 1.11.2.3 Instantly Available PC Technology Instantly Available PC technology enables the board to enter the ACPI S3 (Suspend-to- RAM) sleep-state. While in the S3 sleep-state, the computer will appear to be off (the hard drive(s) and fan will power off, the front panel LED will blink). When signaled by a wake-up device or event, the system quickly returns to its last known state.
Intel Desktop Board D425KT and Intel Desktop Board D425KTW Technical Product Specification 1.11.2.9 +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 6 shows the location of the standby power indicator LED.
Technical Reference Memory Map 2.1.1 Addressable Memory The board utilizes 4 GB of addressable system memory. Typically the address space that is allocated for PCI Conventional bus add-in cards, PCI Express configuration space, BIOS (SPI Flash), and chipset overhead resides above the top of DRAM (total system memory).
Intel Desktop Board D425KT and Intel Desktop Board D425KTW Technical Product Specification The amount of installed memory that can be used will vary based on add-in cards and BIOS settings. Figure 7 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 D425KT and Intel Desktop Board D425KTW Technical Product Specification Connectors and Headers CAUTION Only the following connectors/headers have overcurrent protection: Back panel and front panel USB, VGA, serial, and PS/2. 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...
Technical Reference 2.2.1 Back Panel 2.2.1.1 Back Panel Connectors Figure 8 shows the location of the back panel connectors. Item Description PS/2 keyboard/mouse PS/2 keyboard/mouse Serial port Parallel port VGA port USB ports USB ports Line in Line out Mic in Figure 8.
Intel Desktop Board D425KT and Intel Desktop Board D425KTW Technical Product Specification 2.2.1.2 I/O Shield The I/O shield provided with the board allows access to all back panel connectors and is compatible with standard mini-ITX and microATX chassis. As an added benefit for...
Technical Reference 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...
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PCI Express x1 Mini Card connector Front Panel Wireless Activity LED Header (D425KTW only) Front panel USB header (black) D425KTW only - Front panel USB header supports Intel Z-U130 USB Solid-State Drive or compatible device (brown) PCI conventional bus connector...
Technical Reference 2.2.2.1 Signal Tables for the Connectors and Headers Table 11. Serial Port Header Signal Name Signal Name DCD (Data Carrier Detect) RXD# (Receive Data) TXD# (Transmit Data) DTR (Data Terminal Ready) Ground DSR (Data Set Ready) RTS (Request To Send) CTS (Clear To Send) RI (Ring Indicator) Key (no pin)
Intel Desktop Board D425KT and Intel Desktop Board D425KTW Technical Product Specification Table 13. LVDS Panel Voltage Selection Jumper (D425KTW only) Voltage Jumper Setting Configuration 3.3 V 2 and 4 Jumper position for 3.3 V (default) 6 and 4 Jumper position for 5 V...
Ground Ground Table 18. Front Panel Wireless Activity LED Header (D425KTW only) Signal Name LED (+) Ground Table 19. Front Panel Audio Header for Intel HD Audio Signal Name Signal Name [Port 1] Left channel Ground [Port 1] Right channel...
Signal Name +5 VDC +5 VDC Ground Ground KEY (no pin) No Connect Table 22. Front Panel USB Header with Intel Z-U130 USB Solid-State Drive or Compatible Device Support (D425KTW only) Signal Name Signal Name +5 VDC Ground KEY (no pin)
Technical Reference 2.2.2.2 Add-in Card Connectors The board has the following add-in card connectors: • PCI Express x1 Mini Card (rev 1.2 compliant) connector (D425KTW only) • PCI Conventional (rev 2.3 compliant) bus connector (with riser card support for up to two PCI cards) Note the following considerations for the PCI Conventional bus connector: •...
Intel Desktop Board D425KT and Intel Desktop Board D425KTW Technical Product Specification 2.2.2.4 Front Panel Header This section describes the functions of the front panel header. Table 24 lists the signal names of the front panel header. Figure 11 is a connection diagram for the front panel header.
Technical Reference 2.2.2.4.1 Hard Drive Activity LED Header 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. 2.2.2.4.2 Reset Switch Header Pins 5 and 7 can be connected to a momentary single pole, single throw (SPST) type switch that is normally open.
Intel Desktop Board D425KT and Intel Desktop Board D425KTW Technical Product Specification 2.2.2.5 Front Panel USB Headers Figure 12 and Figure 13 are connection diagrams for the front panel USB headers. NOTE • The +5 VDC power on the USB headers is fused.
Technical Reference BIOS Configuration 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. Figure 14 shows the location of the jumper block.
Intel Desktop Board D425KT and Intel Desktop Board D425KTW Technical Product Specification Table 26. BIOS Configuration Jumper Settings Function/Mode Jumper Setting Configuration Normal The BIOS uses current configuration information and passwords for booting. Configure After the POST runs, Setup runs automatically. The maintenance menu is displayed.
Technical Reference Mechanical Considerations 2.4.1 Form Factor The board is designed to fit into a mini-ITX or microATX form-factor chassis. Figure 15 illustrates the mechanical form factor for the board. Dimensions are given in inches [millimeters]. The outer dimensions are 6.7 inches by 6.7 inches [170 millimeters by 170 millimeters].
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...
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Description Processor voltage regulator area Intel Atom processor Intel NM10 Express Chipset Figure 16. Localized High Temperature Zones Table 28 provides maximum case temperatures for the board components that are sensitive to thermal changes. The operating temperature, current load, or operating frequency could affect case temperatures.
Intel Desktop Board D425KT and Intel Desktop Board D425KTW Technical Product Specification Table 28. Thermal Considerations for Components Component Maximum Case Temperature Intel Atom processor Processor voltage regulator area Intel NM10 Express Chipset Memory SO-DIMM For information about Refer to Processor datasheets and specification updates Section 1.2, page 14...
Technical Reference 2.6.1.2 Thermal Specifications Guideline Terms Requirements ≤ 50 °C ≤ 100 °C Ψ ≤ 3.85 °C/W Honeywell PCM45F 13 W external ≤ 35 °C 2.6.1.3 Heatsink Design Guideline (Note) Maximum heatsink size 87 x 62 x 35.54 mm Heatsink mass ≤...
Intel Desktop Board D425KT and Intel Desktop Board D425KTW Technical Product Specification Figure 17. Fan Location Guide for Chassis Selection (Chassis Orientation is Not Restricted) For all chassis configurations, the heatsink performance parameter, Ψ should be less than 3.85 °C/W. The detail thermal measurement metrology is described in the TMSDG.
• 2.5-inch SATA hard disk drive ⎯ Load: continuous read/write benchmark • Intel Z-U130 USB Solid-State Drive or compatible device on the USB flash drive header (D425KTW only) ⎯ Load: continuous read/write benchmark • Wireless card on PCI Express x1 Mini Card slot (D425KTW only), connected via 802.11n protocol...
Method I Case 1 50% electrical stress, 55 ºC ambient. The MTBF prediction is used to estimate repair rates and spare parts requirements. The MTBF data was calculated from predicted data at 55 ºC. The Intel Desktop Board D425KT and Intel Desktop Board D425KTW have an MTBF of at least 507,404 hours.
Technical Reference Environmental Table 31 lists the environmental specifications for the board. Table 31. Intel Desktop Board D425KT and Intel Desktop Board D425KTW Environmental Specifications Parameter Specification Temperature Non-Operating -20 °C to +70 °C Operating 0 °C to +50 °C...
Overview of BIOS Features 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, LAN EEPROM information, and Plug and Play support.
Intel Desktop Board D425KT and Intel Desktop Board D425KTW Technical Product Specification Table 32 lists the BIOS Setup program menu features. Table 32. BIOS Setup Program Menu Bar Maintenance Main Advanced Security Power Boot Exit Clears Displays Configures Sets Configures...
Overview of BIOS Features System Management BIOS (SMBIOS) SMBIOS is a Desktop Management Interface (DMI) compliant method for managing computers in a managed network. The main component of SMBIOS is the Management Information Format (MIF) database, which contains information about the computing system and its components.
Legacy USB support from the BIOS is no longer used. 7. Additional USB legacy feature options can be accessed 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...
Overview of BIOS Features BIOS Updates The BIOS can be updated using either of the following utilities, which are available on the Intel World Wide Web site: ® • Intel Express BIOS Update utility, which enables automated updating while in the Windows environment.
Integrator’s 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 3.7.3 Booting Without Attached Devices For use in embedded applications, the BIOS has been designed so that after passing the POST, the operating system loader is invoked even if the following devices are not present: • Video adapter •...
Intel Desktop Board D425KT and Intel Desktop Board D425KTW Technical Product Specification 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...
Board Status and Error Messages BIOS Beep Codes The BIOS uses audible beep codes to signal status messages and error messages indicating recoverable errors that occur during the POST. The beep codes are listed in Table 37. These beep codes can be heard through a speaker attached to the board’s line out audio jack (see Figure 4, B on page 24).
Intel Desktop Board D425KT and Intel Desktop Board D425KTW Technical Product Specification Front-panel Power LED Blink Codes Whenever a recoverable error occurs during POST, the BIOS causes the board’s front panel power LED to blink an error message describing the problem (see Table 38).
Board Status and Error Messages 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. This code is useful for determining the point where an error occurred. Displaying the POST codes requires a PCI bus add-in card, often called a POST card.
Intel Desktop Board D425KT and Intel Desktop Board D425KTW Technical Product Specification Table 41. 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)
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Board Status and Error Messages Table 41. 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) Mouse (PS/2 or USB) Resetting mouse Disabling mouse...
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Intel Desktop Board D425KT and Intel Desktop Board D425KTW Technical Product Specification Table 41. 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...
5.1.2 European Union Declaration of Conformity Statement ® We, Intel Corporation, declare under our sole responsibility that the products Intel ® Desktop Board D425KT and Intel Desktop Board D425KTW are in conformity with all applicable essential requirements necessary for CE marking, following the provisions of the European Council Directive 2004/108/EC (EMC Directive), 2006/95/EC (Low Voltage Directive), and 2002/95/EC (ROHS Directive).
恰当的重复使用处理。 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...
şartlar v.s dahil bütün ayrıntılarını ögrenmek için lütfen http://www.intel.com/intel/other/ehs/product_ecology Web sayfasına gidin. 5.1.4 EMC Regulations Intel Desktop Board D425KT and Intel Desktop Board D425KTW comply with the EMC regulations stated in Table 44 when correctly installed in a compatible host system. Table 44. EMC Regulations Regulation Title...
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• Consult the dealer or an experienced radio/TV technician for help. Any changes or modifications to the equipment not expressly approved by Intel Corporation could void the user’s authority to operate the equipment. Tested to comply with FCC standards for home or office use.
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Regulatory Compliance and Battery Disposal Information Japan VCCI Statement Japan VCCI Statement translation: This is a Class B product based on the standard of the Voluntary Control Council for Interference from Information Technology Equipment (VCCI). If this is used near a radio or television receiver in a domestic environment, it may cause radio interference.
Intel Desktop Board D425KT and Intel Desktop Board D425KTW Technical Product Specification 5.1.5 ENERGY STAR* 5.0, e-Standby, and ErP Compliance Intel Desktop Board D425KT and Intel Desktop Board D425KTW meet the ENERGY STAR requirements listed in Table 45 when used in corresponding system configurations. Table 45. ENERGY STAR Requirements Typical...
Regulatory Compliance and Battery Disposal Information 5.1.6 Regulatory Compliance Marks (Board Level) Intel Desktop Board D425KT and Intel Desktop Board D425KTW have the regulatory compliance marks shown in Table 46. Table 46. Regulatory Compliance Marks Description Mark UL joint US/Canada Recognized Component mark. Includes adjacent UL file number for Intel Desktop Boards: E210882.
Intel Desktop Board D425KT and Intel Desktop Board D425KTW Technical Product Specification 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.
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Regulatory Compliance and Battery Disposal Information 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.
Intel Desktop Board D425KT and Intel Desktop Board D425KTW Technical Product Specification 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...
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Regulatory Compliance and Battery Disposal Information...
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