The HP Compaq dc5800 motherboard (HP Part No. 450667-001 or Assemble Part No. 461536-001) is a Small Form Factor(SFF) system board compatible with Intel Core 2 Duo, Core 2 Quad, Pentium dual-core, and Celeron processors using an LGA 775 socket
Product Specifications:According to HP specifications and retailer information, the motherboard has the following technical attributes:

• Form Factor: Small Form Factor (SFF) / Micro ATX.
  
• Socket Type: LGA 775.
  
• Chipset: Intel Q33 Express chipset.
  
• Memory Support: DDR2-SDRAM DIMMs, PC2-6400 (800 MHz) non-ECC.
  
• Maximum Memory: 8 GB across 4 DIMM slots.

Expansion Slots:

• 1 PCIe x16 (low profile).
  
• 2 PCIe x1 (low profile).
  
• 1 PCI (low profile).
  
• Graphics Adapter: Integrated Intel GMA 3100 graphics.
  
• External Ports:
  
• USB 2.0 (8 total: 2 front, 6 rear).

VGA port.

• RJ-45 Ethernet port (Integrated Intel 82566DM Gigabit Network Connection).
  
• Audio jacks (front: mic and headphone; rear: input/line-in, line-out).
  
• PS/2 ports (keyboard and mouse).
  
• Serial port (1 standard, 1 optional).
  

Include: Motherboard, Heatsink, ABM II CPU
It is recommended to verify the (HP Part No. 450667-001 or Assemble Part No. 461536-001) printed directly on the board to ensure compatibility.