Corsair HX750i PSU review - Introduction

Element 78 - Platinum
Corsair 750 Watt Professional Series HXi PSU review

Corsair has many PSU lines these days, it has become a large chunk of their business and they have grown a solid reputation with them as well. Amongs the product lines there is the Corsair Professional Series HX PSU. An all too familiar series as the HXi series we test today are slightly overhauled SKUs being re-injected into their exsisting line-up being, yet all updated. One of the product launching today is the Corsair HX750i. Initially a Silver certified model, then the last-gen / last-year the (previous) model was a Gold certified one, yet it still didn't meet Corsair's hefty requirements it seems. Today they release HXi power supplies and transformed it into a whopping Platinum qualified model. Heck, as you guys know Platinum is the most expensive of the precious metals that is widely traded by very large numbers of people. Plenty of other metals are more expensive, but they are generally traded only by specialists and industries that consume them. Generally speaking public trades gold, silver, and platinum.

Gold is the prettiest, silver is cheaper (by a huge margin), but platinum is the fanciest !

The new HXi series are all about being quiet and highly efficient. As such you'll notice that the PSU as tested today carries athat Platinum certification. Bronze, Silver but really Gold or Platinum and Titanium is what you want, the upper stack in hardware is expensive though. Corsair will launch three HXi models, I think that there will be a HX1200i at one point as well:

• HX1000i
• HX800i
• HX750i

That means it's 94% efficient at 50% load at 230V and 92% at 110V. Efficiency matters; years ago PSUs were as low as 70% efficient, meaning that 30% of the used power simply vanishes somewhere in that electric circuitry, whilst you are paying for it on that electricity bill. Allow me to explain a little more simple, if your components consume 500W directly from the PSU then with that 70% efficient product you'd actually use and draw 650W from your wall power socket. With a Platinum PSU you'd be using 540W. It's that simple.

The HX750i PSU is 100% modular, for most of you with a side panel window in their chassis a must really as you'll want modular cables. Even the ATX power connector for the motherboard can be removed. The new PSU also improved on the audibility front, if your PC is in idle and pretty much doing nothing, the rather silent fan will actually disable itself until it reaches roughly 40% load, which is 300 Watt. So when you are not gaming yet are using your processor for say transcoding, the PSU won't even have an active fan -- noiseless as that thermally-controlled fan spins up very gradually. But even during gaming it remains exceptionally silent. The HX750i PSU is also grand in performance, the one massive 63A 12-volts says it all really. Excellent for multi-GPU solutions and hardcore overclockers up-to a maximum of two high-end GPUs. Corsair also embeds their LINK technology into the PSU. That means you can monitor the PSU with the help of software, stuff like PSU efficiency, power usage or simply to adjust the fan RPM. We'll show you that in the review though. All in all we have plenty to show you and test. Mind you that being the Professional range you'll get an added benefit as well, Corsair Professional Series PSUs are backed by an excellent 7-year warranty.

But have a peek at the product and then let's head onwards into the review.