Customer service will respond to your inquiry within 24 hours. 1. Product Overview Most of the CPUs in our store are second-hand or refurbished, with a small number being . Please check the product status on the page or contact customer service for confirmation. There are many CPU models, and not all CPUs are suitable for your device. Please confirm that your motherboard is compatible and that you have a certain level of DIY assembly skills, such as installing, replacing heat sinks, and applying thermal paste. If unsure, we recommend consulting a professional or contacting customer service for confirmation. 2. Compatibility Information Please check if the motherboard socket type is compatible, such as LGA, AM, BGA, etc. Check if the BIOS supports the CPU; some older motherboards may require a BIOS update for compatibility. Some CPUs require a dedicated graphics card (without integrated graphics); please confirm your setup supports this. TDP (Thermal Design Power) may impact the cooling solution, so ensure you have an appropriate cooler. 3. Product Condition Description Second-hand CPU: May show light signs of use but does not affect functionality. Refurbished CPU: Has been tested and processed, with stable performance; may not come in the original packaging. New CPU: Unopened original packaging, comes with official warranty (if applicable). Tray CPU: No original fan/packaging, an additional cooler needs to be purchased. All products are rigorously tested to ensure proper function. 4. Purchasing Information Please confirm the compatibility of your motherboard, memory, and other hardware to avoid failure to power on. Some CPUs require a dedicated graphics card, please verify this beforehand. Ensure the cooling solution is sufficient; high TDP models may require enhanced cooling. Unsure about compatibility? Please contact customer service to avoid compatibility issues. Important Reminder Before purchasing, please make sure your device supports the CPU. If you have any doubts, please consult customer service or a professional to avoid compatibility problems.