323091-001 - Intel 865G Socket 478 ATX DDR Motherboard for HP Compaq Evo D530 D330 Desktop PC

Replacement ATX system board designed for select HP Compaq Evo desktop systems. This motherboard is built around the Intel 865G chipset and Socket PGA-478 platform, supporting Intel Pentium 4 processors, DDR SDRAM memory, integrated graphics, and a solid mix of legacy and standard desktop connectivity for business-class systems.

Technical Specifications

• Part Number: 323091-001
• Product Type: System Board / Motherboard
• Form Factor: ATX
• Chipset: Intel 865G
• Processor Socket: Socket PGA-478
• Supported Processors: Intel Pentium 4
• Memory Type: DDR SDRAM, Non-ECC
• Memory Slots: 4 x DIMM
• Maximum Memory Capacity: Up to 4GB
• Graphics: Integrated Intel Extreme Graphics 2
• Expansion Slots: 1 x AGP 4X, 3 x PCI
• Storage Interfaces: 2 x SATA, 1 x Ultra ATA/100 (ATA-6)
• LAN: Integrated Intel PRO/100 VE Network Connection
• Audio: Integrated AC'97 Audio
• BIOS: HP Flash ROM BIOS
• Power Connector: Standard 20-pin ATX power connector
• Rear I/O Ports:
  • 6 x USB 2.0
  • 1 x VGA
  • 1 x Parallel
  • 1 x Serial
  • 1 x RJ-45 Ethernet
  • 2 x PS/2
  • Audio jacks: Line-in, Line-out, Mic-in
• Internal Connections:
  • 2 x SATA
  • 1 x Ultra ATA/100 (ATA-6)
  • Front USB headers
  • Front audio headers
  • CPU fan connector
  • Chassis fan connector
  • Front panel power / LED headers

Interchangeable / Replacement Part Numbers

• 323091-001, 305374-001

✅ Confirmed Compatibility

Please note that the following list is not exhaustive. Compatibility depends on your system's specific configuration. It's essential to verify compatibility with your system or enclosure manufacturer prior to installation.

✔️ HP Compaq Evo: D330, D530

☑️ Key Features

☑️ Intel 865G chipset with Socket PGA-478 support for compatible Intel Pentium 4 processors
☑️ ATX motherboard layout designed for select HP Compaq Evo desktop systems
☑️ Supports up to 4GB of DDR SDRAM across four DIMM slots
☑️ Integrated Intel Extreme Graphics 2 for onboard video output
☑️ Includes both SATA and Ultra ATA/100 storage connectivity for legacy system support
☑️ Equipped with AGP 4X and PCI expansion slots for add-in card flexibility
☑️ Integrated LAN and AC'97 audio for complete desktop platform functionality

⚙️ Fit Notes

• Confirm your existing board part number is 323091-001 before ordering.
• Verify your chassis uses an ATX system board and supports this rear I/O layout and mounting pattern.
• Check that your processor is a compatible Socket 478 Intel Pentium 4 CPU.
• Ensure your power supply provides the correct 20-pin ATX power connection required by this motherboard.
• BIOS version, heatsink, front panel wiring, and chassis style should be verified before installation to ensure proper fit and operation.