PCB Design Features of Computer Motherboard:

1. FSB bus speed at 800 MHz, requiring strict grouping and timing relationships;

2. Eight DDR II 800 MHz memory chips mounted on one side, demanding high-density layout with strict topology and timing constraints;

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

4. Functional modules are compactly and rationally placed to enhance signal integrity and minimize crosstalk between signals;

5. Standard CPCI card slot adopted.

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