Since the introduction of the 80 Plus certifications, we've seen a slow but steady trickle down effect where labels that were once reserved for the highest of the high-end (e.g. 80 Plus Gold) have eventually reached mainstream price points. Manufacturers including FSP, Rosewill, Sparkle, and SuperFlower now sell affordable 80 Plus Gold power supplies for less than $100. But if mainstream users are now able to get 80 Plus Gold, what should the high-end market offer? Enter 80 Plus Platinum:

Those looking for maximum efficiency can now set their sights on 80 Plus Platinum PSUs, which will be new halo market for high-end—and high cost—power supplies. To reach the necessary efficiency levels, some improvements are necessary that can change some of the core characteristics of a power. Improved resonant topologies, new MOSFETs for synchronous rectifying, higher switching frequencies, better drivers, and low-resistance conduction paths are just some of the things we'll see with 80 Plus Platinum. We're naturally eager to see what the new models can bring to the table, and Enermax sent us their Platimax 750W model, which uses an optimized Modu87+ design. Read on to find out if Enermax is the new efficiency king, and how it performs in other metrics.

"You get what you pay for!" Is this maxim realy true? On the one hand there are more than enough expensive PSUs with high ripple and noise results with a noisy fan thrown in as well; on the other hand, you can't get the best capacitors without paying a premium. So let's see how three different 550W power supplies compare, particularly in light of their pricing. There's quite a spread here in terms of cost; how much PSU can you get for your dollar?

The Silent Pro series is one of the best-known series power supplies from Cooler Master, previously covering range from 500 to 700 watts. The range has now extended to 1000W with two models rated at 850W and 1000W, including flat connection cables found in higher power classes. Today we are looking at the latter. The 1000W model comes with a 5-year warranty, promises a maximum efficiency of 86%, and uses a single +12V rail. Excluding the motherboard connectors all cables are fully modular. Cooler Master also makes note of the high quality of selected components. Even though the housing of the PSU seems to be very similar to the smaller Silent Pro, a different ODM is responsible for the manufacture. On the next pages we will explore the design and topology and see if Cooler Master is able to keep their promises.