Originally disassembled Lenovo brand machine stock 775-pin fan, 4-pin speed and temperature-controlled 775-pin CPU cooler, metal base, AVC and Taisol(Tesso)There are two types of fans. Because of the different disassembly batches, the fan shapes are different, but the brand is the same, so don''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''t mind!