My build consists of an Ivy Bridge i5, Radeon HD 7850, 8GB DDR3, and a SSD. I'm about to upgrade to an R9 290, as well as put in a 3TB 3.5" HDD. Current PSU is only 450W, so my first question is whether I need to upgrade?
Power supply calculators I've checked say that I should be just about okay with 450W. I don't intend to do any overclocking any time soon, but may in the future. I may also add some more memory, storage, and a second R9 290 in Crossfire, but not for at least a couple of years.
I live in the UK and wouldn't be looking to pay more than £60-70 for a decent PSU. Can somebody point me in the direction of a quality supply that would give me plenty of headroom? I was thinking 750W tops, modularity would be a bonus.