Corsair HX 650 W Power Supply (PSU)

If you’re the least bit interested in graphics cards, we’re sure that you’ve heard the terms SLI and CrossFire bandied about recently. Touted as a means of achieving maximum 3D performance by, effectively, using two or more graphics cards in tandem, multi-GPU technology is here to stay. With that in mind, let’s take a closer look SLI and CrossFire; the two competing multi-GPU solutions from NVIDIA and ATI Technologies, respectively.

The PSU, or Power Supply Unit, is one of several devices that one could argue is the most important component within a computer. Sufficient to say, without a PSU, the computer won’t work, so they are pretty important. Even more significantly, with a faulty PSU installed, all sorts of other problems can manifest themselves. It’s essential to have a PSU that can supply enough power, reliably.