![Close-up of a green printed circuit board with multiple electronic components and traces (no readable text or symbols)](.express-dw400-datasheet-15/68ff92ff727909ff66d0365268678326ccd9e4d9531c823593be3f1de7b3fcd8.jpg)

# Features

Intel® Core™ Duo and Core™2 Duo Processor
Two PCI Express® x4 or one x8 with EDMA
Two vertical or one horizontal SO-RDIMM sockets for DDR2 400 with ECC
Intel® 82573 GbE LAN
USB 2.0, Serial ATA and IDE support
PICMG® COM.0 COM Express™ Module Type 2, basic form factor

# Specifications

Core System

<table><tr><td rowspan="12">CPU</td><td>Merom Core socket type</td></tr><tr><td>Intel®CoreTM2 Duo T7400, 2.1GHz, 4MB L2 cache, 34 W</td></tr><tr><td>Intel®Celeron®M 530, 1.73GHz, 1MB L2 cache, 27 W</td></tr><tr><td>Merom Core BGA type</td></tr><tr><td>Intel®CoreTM2 Duo L7400, 1.5 GHz, 4MB L2 cache, 17 W</td></tr><tr><td>Intel®CoreTM2 Duo U7500, 1.06 GHz, 2MB L2 cache, 10 W</td></tr><tr><td>Yonah Core socket type</td></tr><tr><td>Intel®CoreTM Duo T2500, 2.0 GHz, 2MB L2 cache, 31 W</td></tr><tr><td>Intel®Celeron®M 440, 1.86 GHz, 1MB L2 cache, 27 W</td></tr><tr><td>Yonah Core BGA type</td></tr><tr><td>Intel®CoreTM Duo U2500, 1.2 GHz, 2MB L2 cache, 9 W</td></tr><tr><td>Intel®Celeron M 423, 1.06GHz, 1MB L2 cache, 5.5 W</td></tr><tr><td rowspan="3">Memory</td><td>Single channel registered ECC DDR2 at 400MHz up to 4 GB</td></tr><tr><td>Option 1: one horizontal SODIMM socket, max. 2 GB</td></tr><tr><td>Option 2: two vertical SODIMM sockets, max. 4 GB</td></tr><tr><td>Chipset</td><td>Intel®3100 single integrated chip (Memory Controller Hub + I/O Controller Hub)</td></tr><tr><td>BIOS</td><td>Phoenix®Award</td></tr><tr><td>Hardware Monitor</td><td>Supply voltages and CPU/system temperature</td></tr><tr><td>Watchdog Timer</td><td>Two stage watchdog timer</td></tr><tr><td rowspan="4">Expansion Busses</td><td>Two PCI Express®x4 lanes with EDMA support, configurable as a one x8 PCI Express®x8 lane, and three x1 lanes</td></tr><tr><td>32-bit PCI rev 2.3 at 33MHz</td></tr><tr><td>LPC bus</td></tr><tr><td>SMBus / I2C</td></tr><tr><td colspan="2">Video</td></tr><tr><td>On carrier</td><td>Optional VGA support via PCI or PCIe bus on carrier</td></tr><tr><td colspan="2">LAN</td></tr><tr><td>Chipset</td><td>PCIe type Intel®82573</td></tr><tr><td>Interface</td><td>10/100/1000 Mbps</td></tr></table>

Multi I/O

<table><tr><td>Chipset</td><td>Integrated on Intel® 3100</td></tr><tr><td>USB</td><td>Up to four USB 2.0 ports, supports legacy keyboard/mouse</td></tr><tr><td>SATA</td><td>Four Serial ATA 150 ports</td></tr><tr><td>PATA IDE</td><td>Single channel IDE for CF card support (SATA to IDE conversion)</td></tr></table>

# Super I/O

Connected to LPC bus on carrier if needed

TPM

<table><tr><td>Chipset</td><td>Infineon SLB9635TT1.2</td></tr><tr><td>Type</td><td>TPM 1.2</td></tr></table>

Power Specifications

<table><tr><td>Input Power</td><td>AT mode (12 V) and ATX mode (12 V and 5 Vsb)</td></tr><tr><td>Power States</td><td>Supports S0, S1, S3, S4, S5</td></tr><tr><td>Power Consumption</td><td>24.5 W (with CoreTM2 Duo U7500 and 2 GB memory typical)</td></tr></table>

Mechanical and Environmental

<table><tr><td>Operating Temp.</td><td>0°C to 60°C</td></tr><tr><td>Storage Temp.</td><td>-20°C to 80°C</td></tr><tr><td>Humidity</td><td>Up to 90% at 60°C</td></tr><tr><td>Shock</td><td>15G peak-to-peak, 11ms duration, non-operation</td></tr><tr><td>Vibration</td><td>Non-operation: 1.88 Grms, 5-500 Hz, each axisOperation: 0.5 Grms, 5-500 Hz, each axis</td></tr><tr><td>Form Factor</td><td>COM ExpressTM Type 2, basic form factor, 95 mm x 125 mm</td></tr><tr><td>Certifications</td><td>CE, FCC</td></tr></table>

Operating Systems

<table><tr><td rowspan="2">Standard Support</td><td>Windows® XP 32/64-bit</td></tr><tr><td>Linux® 2.6.26 and up</td></tr><tr><td rowspan="3">Extended Support</td><td>Embedded XP BSP</td></tr><tr><td>Linux® 2.6.x BSP</td></tr><tr><td>AIDI I2C Library for Win32 and Linux®</td></tr></table>

Functional Diagram
![**Top Section:**\n*   **CPU**: Contains 'Celeron® M', 'Core™ Duo', 'Core™2 Duo', 'SMT µFCBGA2 or µFCPGA2'.\n*   **Connection**: Connects to **MCH + ICH** via 'FSB 533/667 Mhz'.\n\n**Middle Section (MCH + ICH):**\n*   **Block**: 'MCH + ICH', 'Intel® 3100'.\n*   **Memory Controller**: Connects to 'DDR2 Memory Controller with ECC'.\n    *   'DDR2 Memory Controller with ECC' connects via 'Channel A' to 'DDR2 400 MHz SO-RDIMM socket (horizontal x1)'.\n    *   'DDR2 Memory Controller with ECC' connects via 'Channel A' to 'DDR2 400 MHz SO-RDIMM socket (optional 2x vertical)'.\n*   **PCIe**: Connects to 'PCIe with EDMA'.\n    *   'PCIe with EDMA' contains 'One PCIe x 8', 'Two PCIe x4 or Two PCIe x1'.\n    *   'PCIe with EDMA' connects to the **CD** bar via 'PCIe x8 (or 2 x4, or 2 x1)'.\n*   **SATA/PATA Path**: Connects to '1x SATA'.\n    *   '1x SATA' connects to 'SATA_0'.\n    *   'SATA_0' connects to 'SATA to PATA' (containing 'JM20330').\n    *   'SATA to PATA' connects to 'IDE'.\n    *   'IDE' connects to the **CD** bar.\n*   **PCI**: Connects to 'PCI'.\n    *   'PCI' connects to the **CD** bar via 'PCI 33 MHz, v2.3'.\n*   **LPC**: Connects to 'LPC'.\n    *   'LPC' connects to 'BIOS', 'TPM', and 'LPC header'.\n    *   'LPC' connects to the **AB** bar via a line labeled 'LPC'.\n*   **RTC**: Connects to 'RTC'.\n\n**Left Section (AB Bar):**\n*   **Bar**: Labeled 'AB'.\n*   **Connections from MCH + ICH**:\n    *   'GbE LAN' (containing 'Intel 82573') connects via 'PCIe x1, lane 0'.\n    *   'PCIe x1, lane 1/2/3'.\n    *   'Four PCIe x1 lanes'.\n    *   'SATA_1/2/3/4'.\n    *   'USB_0/1/2/3'.\n    *   'GPIO'.\n    *   'I2C'.\n    *   'SMBus'.\n    *   '4x SATA'.\n    *   '4x USB 2.0'.\n*   **Peripheral Chips**: 'SMBus' connects to 'LM95235' and 'LM87'.\n\n**Right Section (CD Bar):**\n*   **Bar**: Labeled 'CD'.\n*   **Connections**: Receives connections from PCIe x8 path, IDE path, and PCI 33 MHz path.](.express-dw400-datasheet-15/22c1678dcb829615ce7d5909904cb3c868d0986e25888d6efe07bb7ba28b6daa.jpg)

# Ordering Information

Modules

<table><tr><td>Model Number</td><td>Description/Configuration</td></tr><tr><td>Express-DW400-S</td><td>Server level COM ExpressTM module with socket for CPU</td></tr><tr><td>Express-DW400V-S</td><td>Server level COM ExpressTM module with socket for CPU and two vertical SO-RDIMM sockets</td></tr><tr><td>Express-DW400-423</td><td>Server level COM ExpressTM module with Intel® Celeron® M 423 at 1.06 GHz</td></tr><tr><td>Express-DW400-U2500</td><td>Server level COM ExpressTM module Intel® CoreTM Duo U2500 at 1.20 GHz</td></tr><tr><td>Express-DW400-U7500</td><td>Server level COM ExpressTM module with Intel® CoreTM2 Duo U7500 at 1.06 GHz</td></tr><tr><td>Express-DW400-L7400</td><td>Server level COM ExpressTM module with Intel® CoreTM2 Duo L7400 at 1.5 GHz</td></tr></table>

V-type (Vertical): All modules above are with single horizontal SO-RDIMM socket, expect for DW400V type that has two vertical placed SO-RDIMM sockets

Accessories

<table><tr><td>Model Number</td><td>Description/Configuration</td></tr><tr><td colspan="2">Heat Spreaders</td></tr><tr><td>HTS-DW400-B</td><td>Heatspreader for Express-DW400 (BGA CPU, horizontal SORDIMM) with threaded standoffs</td></tr><tr><td colspan="2">Heatsink with Active Cooling</td></tr><tr><td>THSF-DW400V-S</td><td>High Performance Heatsink with Fan for Express-IW400 and DW400 (socket CPU and dual vertical SODIMMs) with threaded standoffs</td></tr><tr><td>THSF-DW400-S</td><td>High Performance Heatsink with Fan for Express-IW400 and DW400 (socket CPU and single horizontal SODIMM) with threaded standoffs</td></tr></table>
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