Using third-party cooling solutions on your PS5 is generally not recommended. While it may seem like a good idea to keep your console running at a cooler temperature, using an external cooling system can potentially cause damage to your PS5's internal components. Additionally, using third-party solutions can void your warranty and may not be able to effectively cool your console. It's best to stick with the built-in cooling system and ensure that your PS5 is properly ventilated to prevent overheating.