Enhance your computer maintenance and troubleshooting efficiency with this advanced Diagnostic Card, designed to accurately, stably, and quickly identify motherboard failures. Compatible with PCI bus slots, this diagnostic tool supports a wide range of motherboards, including Intel, AMD, and server CPU platforms, making it an essential device for technicians and enthusiasts alike. Key Features: · Precise Fault Detection: Quickly and reliably locate computer motherboard issues using four-digit fault codes displayed clearly on the LCD screen. · Clear Start Code Identification: The unique start codes "0000" or "FFFF" allow for immediate recognition of system status. · Audible Fault Reporting: Equipped with a clear beep sound function to alert users of detected faults for faster diagnostics. · Safe Design: Built with anti-insertion and misinsertion protection to prevent damage to any motherboard components during use. · PCI Bus Compatibility: Easily plugs into PCI slots without the need to remove the CPU or other components, enabling power-on diagnostics of critical motherboard signals. · Wide Motherboard Support: Fully compatible with various motherboard types across low, medium, and high-end Intel, AMD, and server CPU platforms. · Indicator Light Functions:  - BIOS: Flashes during BIOS read operations, indicating motherboard activity.  - IRDY: Lights up with IRDR signal presence.  - FRAME: Flashes with circular frame signals; remains steady during idle.  - RST and RESET: Shows reset signals and power-on reset status for motherboard troubleshooting.  - Voltage Indicators (12V, -12V, 5V, -5V, 3V3): Monitor power supply voltages on the motherboard and PCI slot, helping detect shorts or power issues. Specifications: · Usage: Computer motherboard maintenance and diagnostics tool · Display: LCD characters for clear fault code reading · Material: High-quality patch components, safe to handle · Color: As shown in the product image · Package Weight: 48g Package Includes: · 1 x Diagnostic Card · 1 x English User Manual This Diagnostic Card offers a reliable, user-friendly solution for motherboard troubleshooting, enabling technicians to identify and resolve hardware issues efficiently while protecting your components from accidental damage.