PCB Design Features of Computer Motherboard:

1. FSB bus speed at 800 MHz, with strict grouping and timing requirements;

2. Eight DDR II 800 MHz chips mounted on a single side, requiring high-density layout, strict topology, and precise timing relationships;

3. Multiple switching power supplies are efficiently arranged within limited space to meet thermal design requirements and effectively reduce power supply noise;

4. Functional modules are laid out compactly and logically, improving signal integrity and reducing crosstalk between signals;

5. Standard CPCI card slot is used.

PCB Fabrication Specifications:

Number of PCB layers: 8

PCB surface finish: Immersion gold

PCB base material: Htg170, 1 oz

Surface treatment: Lead-free HASL

Testing method: 100% electrical testing with impedance control