Tom's son is building a gaming PC with a Ryzen processor. Does that need to be liquid cooled? Leo says that while Intel is still the king of the hill, the Ryzen Threadripper gives you a ton of bang for your buck. You can use air cooling for it, but water cooling is very effective and liquid cooling cases aren't that expensive and completely sealed. What about WiFi? Leo says most motherboards come with WiFi. But if yours doesn't, you can add one with a USB thumb drive. But being wired is best because it avoids latency and network congestion.