z210

I have Z210 with 400 psu (DPS-400AB-13A ) but I want to upgrade my psu to 500 or may be 600. How can I achieve that? Will This one work in my case : https://www.amazon.com/HP-632911-001-Z420-POWER-SUPPLY/dp/B01MRV31HZ

Hi guyz , I own a Zalman z9 plus case and I decided to upgrade my cpu cooling system. I currently have a Hyper 212 evo to keep my cpu cool.The problem is that I don't know what watercooler will fit in my case . I read that a custom watercooler will fit . So my question is : What cpu watercooler...