Final Thoughts
There are quite a few companies that take an already existing product line and add a feature that no one really wants or cares about to rebrand that product link and in-turn charge more for it. Corsair took the HX750 power supply and upped the efficiency certification to 80PLUS Platinum and added Corsair Link functionality to the unit. These two features warrant a price increase and a new power supply line for Corsair.
Voltage regulation is a very important thing when it comes to a power supply. The Corsair HX750i had very good voltage regulation in our tests. While we did see “ripple” in all of the rails it was within the acceptable limits of what we expect from power supplies these days. The voltage regulation on each of the rails are as follows: 3.3V: 2.14%, 5V: 1.58%, 12V: 1.65%. As I mentioned this power supply is 80PLUS Platinum certified that means that it will be 92% efficient at 50% load and 89% efficient at 100% load. During our tests we measured efficiency with the Corsair Link software and it remained at the advertised specifications.
Talking about Corsair Link it is a great piece of software. Once you have connected the supplied Corsair link cable to your motherboard you will be able to monitor efficiency, power in, power out, all of your voltages, and the fan speed of the 140 mm cooling fan. You are also able to turn multi-rail mode on or off and set the fan to fixed mode instead of its default zero RPM mode. The zero RPM mode is actually a great idea. If you power supply is not that warm the fan really does not need to be running. When your power supply starts to heat up the fan kicks in to keep things nice and cool. This no only means your power supply will be quite but this makes it more efficient as well.
When purchasing components for a system one component I tell people never to skimp on is the power supply. Remember this is what is powering all of your components and if something happens to the power supply it could affect or even damage your components. Right now this power supply is selling for $169.99 at my favorite online retailer. With the Platinum certification and Corsair Link support this price is very justified. Also Corsair does stand behind their product giving it a 7 year warranty.
If you are looking for a 80PLUS Platinum certified power supply Corsair’s HXi Series is a great choice. Overall ThinkComputers gives the Corsair HX750i power supply a 10 out of 10 score and our Recommended Award!
Pros:
– 80PLUS Platinum certified
– Zero RPM fan mode
– Corsair Link compatible
– 100% modular
– Good voltage regulation
– 7 year warranty
Cons:
– None that I found
