Enermax Platimax 750W - 80 Plus Platinum Arrivesby Martin Kaffei on February 10, 2012 6:00 PM EST
Introducing the Enermax Platimax 750W
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 (90% at 20% load, 92% at 50% load, and 89% at 100% load), 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.
Let's take a first look at the near future of switching power supplies. The Platimax 750W might be relatively close to the Modu87+ series (and is definitely in the running for the worst product name award, or perhaps least creative name award), but there are some interesting new details that we will cover on the following pages. It is very important to improve efficiency without impairing electromagnetic compatibility, something faster switching might impair. So let's find out if Enermax's new components and design are enough to provide the desired high efficiency, low ripple and noise, and decent voltage regulation.