I've needed a replacement for my aging Coolmaster 750W psu as it was beginning to cause issues with my GTX 980ti. My criteria for a new psu was primarily stable power, reliability and the ability to monitor voltages. With the Corsair HX750 it managed to fulfil all these expectations admirably.

This hx750i is a beast. Give enough juice to extremes machine. Great choice. It's quite. Came in a sealed box. Always buy from Argos.

So far so good, paid a bit more than i should of.

Technically, the efficiency of a PSU is unrelated to its wattage. Some of the most powerful PSUs sport the best efficiency, though. Then again, few people truly need 1000W or more, and even fewer are willing to pay a premium for output levels they have no use for.

Design; Features; Quality; Warranty

Low-Power Efficiency

Ever hear of a Magpie? If not, it's a type of bird that has some really interesting characteristics. They tend to build nests in trees and are known to be attracted to shiny objects. I have even heard of them stealing those objects to use as part of their nests.

Excellent Power Delivery on All Rails at All Loads; 92% 80 PLUS Platinum Efficiency; All Black Cabling With Excellent End-To-End Finish; Excellent Cable Layout; Fully Modular; Very Quiet/Fanless Under Typical Loads; 7-Year Warranty; 100% 105C Solid Japanese Capacitors Throughout; Haswell and C6...

None

Our opinion regarding the performance of the new HX750i can be summarized in one word – excellent. It is apparent that Corsair strives to uphold the reputation of the HX PSU series, which may not be their most advanced series anymore but it remains of special significance to the company.

Corsair comes to us today bearing a new and improved HX series power supply, the HX750i. Taking the old HX750, upping the efficiency to Platinum level, and adding Corsair Link support, this promises to be a welcome improvement and update to the Corsair power supply line.

So that brings us to value where the Corsair HX750i offers many of the features and performance aspects of the AXi range, but at a lower price point. When we add in the presence of a 7-year warranty and free software it is a very well rounded product.

The HX750i from Corsair is as good as you could expect a PSU to be and would make a fantastic addition to anyone system build. Highly recommended!

Fully modular cables; Seven-year warranty; Excellent ripple suppression; Zero RPM fan mode; Extremely quiet fan at full load; Fan-test button; Corsair Link; Switchable single/multiple 12v rail; Platinum efficiency; Tight voltage regulation