First, if the technology is good, you can buy your own solder for welding. If you can't find the needle, you can change it, such as earrings and welding, but the stability in use is not very clear.
Second, take it to the factory to repair or repair the computer;
Third, directly find a needle, or an ear nail, plug it in the motherboard and plug it in the socket, and then slowly install the CPU.
Finally, not all CPU pins are useful. Some models of CPU pins are empty, so one foot is broken, but it has no effect.