Intel Core i7 4820K 3.7-3.9GHz LGA2011 Processor - 10MB L3, 4 Cores, 8 Threads, 22nm - NO FAN

Virtually new, never really used.  Incompatibility problem.  Heatsink material is on it, will need cleaning.

Amazing performance and stunning visuals at their best. Get top-of-the-line performance for your most demanding tasks with a 4th generation Intel® Core™ i7 processor. For a difference you can see and feel in HD and 3-D, multitasking and multimedia, the 4th generation Intel Core i7 processor is perfect for all your most demanding tasks.

Effortlessly move through applications with smart multitasking from Intel® Hyper-Threading Technology1. Enjoy the thrill of an automatic burst of speed when you need it with Intel® Turbo Boost Technology 2.02. Experience your movies, photos, and games smoothly and seamlessly with a suite of built-in visual enhancements—no extra hardware required3.

1. Available on select Intel® Core™ processors. Requires an Intel® Hyper-Threading Technology (Intel® HT Technology) enabled system. Consult your PC manufacturer. Performance will vary depending on the specific hardware and software used. For more information including details on which processors support HT Technology, visit www.intel.com/content/www/us/en/architecture-and-technology/hyper-threading/hyper-threading-technology.html.
2. Requires a system with Intel® Turbo Boost Technology capability. Intel Turbo Boost Technology 2.0 is the next generation of Intel Turbo Boost Technology and is only available on select Intel® processors. Consult your PC manufacturer. Performance varies depending on hardware, software, and system configuration. For more information, visit www.intel.com/content/www/us/en/architecture-and-technology/turbo-boost/turbo-boost-technology.html.
3. Built-in visual features are not enabled on all PCs, and optimized software may be required. Check with your system manufacturer. Learn more at www.intel.com/content/www/us/en/architecture-and-technology/visual-technology/intel-visual-technology-consumer.html.