Depends on how involved you want to get. The best is getting all the gold, you can use a air soldering gun to make it fairly easy or just pliers. Then capacitors and silicon chips. The older the tech them more value. You would likely be best off selling that to someone that specializes in recovering the metals. The gold you can look up and see the chemical process to purify it and melt it into a chunk. If you're not into it, you can sell because it's a bit dangerous lol