Soyo TechAid PCI Diagnostic Card - Decode POST! Soyo TechAid Diagnostic Card General Features: PCI interface Easy to read LED display on both sides of the TechAID Easy to read LED display on the Mini Display Assists in revealing where problem is while troubleshooting Identifies whether CPU or motherboard is defective Will help to determine if the memory is faulty Able to pinpoint whether the Video card is problematic