Feature Summary (continued) Instantly Available PC Technology • Support for PCI* Local Bus Specification Revision 2.3 • Suspend to RAM support • Wake on PCI, LAN, serial port, front panel, PS/2 device, and USB ports Expansion Capabilities • One Conventional PCI bus connector Hardware Monitor Subsystem • Voltage sense to detect out of range power supply voltages • Thermal sense to detect out of range thermal values • Two fan headers • Two fan sense inputs used to monitor fan activity 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 DG41AN Technical Product Specification Table 2. Board Components Shown in Figure 1 Item/callout from Figure 1 Description A Back panel connectors B Processor core power connector (2 x 2) C Front panel USB header D Front panel USB header E Alternate front panel power LED header F BIOS Setup configuration jumper block G LGA775 processor socket H Front chassis fan header I Processor fan header J Front panel header K Main Power connector (2 x 12) L Standby power LED M Battery N Piezoelectric speaker O DIMM Channel A socket P DIMM Channel B socket Q Intel 82G41 GMCH R Intel 82801GB I/O Controller Hub (ICH7) S Serial ATA connectors (3) T Conventional PCI bus add-in connector U Front panel audio header V Chassis intrusion header W Serial port header Product Description 1.1.3 Block Diagram Figure 2 is a block diagram of the major functional areas. Figure 2. Block Diagram Intel Desktop Board DG41AN Technical Product Specification 1.2 Legacy Considerations This board differs from other Intel® Desktop Board products, with specific changes including (but not limited to) the following: • No serial port on the back panel • No diskette drive connector 1.3 Online Support To find information about… Visit this World Wide Web site: Intel Desktop Board D425KT and Intel Desktop Board D425KTW Desktop Board Support Available configurations for the Intel Desktop Board D425KT and Intel Desktop Board D425KTW Supported processors Chipset information BIOS and driver updates Tested memory htm Integration information 1.4 Processor The board is designed to support the following processors: • Intel® Celeron® processor E1000/E3000 series in an LGA775 socket • Intel® Celeron® processor 400 Sequence in an LGA775 socket • Intel® Pentium® processor E2000/E5000/E6000 series in an LGA775 socket • Intel® Core™2 Duo processor E4000/E5000/E6000/E8000 series in an LGA775 socket • Intel® Core™2 Quad Q8000s/Q9000s series in an LGA 775 socket • Intel® Xeon® processor 3000/E3000 series in an LGA775 socket Other processors may be supported in the future. This board is designed to support processors with a maximum wattage of 65 W. The processors listed above are only supported when falling within the wattage requirements of the board. See the Intel web site listed below for the most up-to-date list of supported processors. For information about… Refer to: Supported processors CAUTION Use only the processors listed on the web site above. Use of unsupported processors can damage the board, the processor, and the power supply. Product Description ..INTEGRATOR’S NOTE Use only ATX12V-compliant power supplies. Refer to For information about Power supply connectors Section 2.2.2.4, page 46 1.5 System Memory The board has two DIMM sockets and supports the following memory features: • 1.5 V DDR3 SDRAM DIMMs with gold plated contacts, with the option to raise the voltage to support higher performance DDR3 SDRAM DIMMs • Dual channel interleaved mode support • Unbuffered, single-sided or double-sided DIMMs with the following restriction: Double-sided DIMMs with x16 organization are not supported. • 4 GB maximum total system memory (with two 2 GB DIMMs). Refer to Section 2.1.1 on page 37 for information on the total amount of addressable memory. • Minimum total system memory: 512 MB • Non-ECC DIMMs • Serial Presence Detect • DDR3 800 MHz, DDR3 1066 MHz, and DDR3 1333 (overclocking required) MHz SDRAM DIMMs Note: DDR3-1333 memory operates at 1066 MHz by default until manually overclocked through the system BIOS. CAUTION Altering PC memory frequency, voltage and/or latency may: (i) reduce system stability and useful life of the system, memory and processor; (ii) cause the processor and other system components to fail; (iii) cause reductions in system performance; (iv) cause additional heat or other damage; and (v) affect system data integrity. Intel has not tested, and does not warranty, the operation of the memory beyond ...