Stefan Mileschin

Shopping around for a power supply on a tight budget can be a bit of an ordeal. On forums, everyone will have their own opinion of what constitutes a good power supply, and similarly to mechanical HDDs, a single bad experience can put a user off a brand forever. My golden rule, unless you need a specific feature/amperage on the power lines for unique GPUs, is to take the total power draw of your system and add 40%. My analogy is thus – a car whose top speed is 80mph will squeak and rattle if you run it every day at 70mph, whereas a car whose top speed is 130mph will hum along nicely at 70mph. Others may disagree, but I find this is a nice guideline when building systems for family and friends.

http://www.anandtech.com/show/7988/c...s-titanium-psu