Ok so I have an Asus motherboard M4A78LT-M that supports Athlom II, Phenom II and Sempron. I recently added a GTX 1650 super graphics card but my CPU is bottlenecking. I was able to find a few on new egg but am iffy about purchasing since I can’t really tell if it’s in decent condition. My question Is there any other reliable sellers or should I just get a new set up. Any advice helps, thanks in advance.