Hello, all. I'm a little new to computers, or at least the hardware side of things. I'm thinking about getting a new graphics card (going from a 5770 to a 5850) and wondered if I should upgrade to a new psu as well?
Your current PSU is fine since it is 600w. Also, I just switched from a Cooler Master to a Seasonic due to the fact it didn't meet it's listed rating. Most Cooler Master PSU's are over rated by 50-100w. So your PSU would still be the same wattage even if you did change to the 700w Cooler Master.
Don't upgrade the PSU unless you are going to run 2 graphics cards in Crossfire or your current PSU sucks. But 600w is good enough, and the manufacturer for the video card recommends only a 500w PSU. So if you have a normal system, not too many expansion cards or more than 3 hard drives, I wouldn't worry about it.