Corsair hx1200i review

Corsair hx1200i review DEFAULT

CORSAIR HXi Series HX1200i 1200W 80 PLUS PLATINUM Haswell Ready Full Modular ATX12V & EPS12V SLI and Crossfire Ready Power Supply with C-Link Monitoring and Control

Pros: Super premium feel, fully modular flat black ribbon cable. Silent, something like 600w before the fan spins turns on, and even with an 800-1000w load its only like 600 rpm! The thing is color matched internally... Like the outside is black with white and blue letters, and the inside, they made it all black, except even matched the white of the glue they use to the white on the label! There are even a few blue capacitors that match the HX lettering color... The inside components are custom Corsair labeled boxes, so even those look nice! Like who looks inside of a power supply and cares about color?!? Clearly they were OCD and put an insane amount of thought and care into the quality, feel, and look of this premium product. Features: Power/Amps/Voltage on every single 3.3,5,and 12v rail is shown on software and made into nice looking graphs. You can even see the efficiency it has at that moment... This would be a crypto miners dream! You can see exactly how much power you have left to spare. Or if you're like me and love overclocking, you can see you still have massive amount to play with, and its just cool data and gizmos. Looks to match my wall meter pretty accurate (though this thing might even be more accurate). Just fantastic software. Efficient: 92% efficiency reported at 800w, and still above 90% just past 1000w. Barely any warmth comes from the thing, and the fan barely spins 600 rpm, so its not like its pushing much air. My last PSU was a hair dryer by comparison, and also the loudest thing in my build, not this one! This thing is unbelievable...

Cons: Fan test button is super wobbly and shockingly cheap for everything else being so perfect and premium

Overall Review: Why is this worth every penny? I may ride a bike that costs less than a sandwich at McDonald's, but I learned the hard way $250 is cheap, a bargain! My last PSU knocked out a $250 SSD (so at least out $250, and a dead PSU). That alone would make this a FREE power supply as long as it doesn't blow anything up. This thing should last me a really long time. It even has a 10 year warranty, so if it doesn't, I'll be covered. This is just a fantastic well made product, super happy with my purchase, even if it does cost half my car, its well worth it!


Corsair HX1200i Review & Specs

Socket: AM4

Form factor: ATX

Chipset: AMD B550

Supported Memory: DDR4-2133 / 2400 / 2666 / 2933 / 3200 / 3466 / 3600 / 3733 / 3800 / 3866 / 4000 / 4133 / 4200 / 4266 / 4333 / 4533 / 4600 / 4666

ECC RAM Support:

Audio Chipset: Realtek ALC1220

Audio Channels: 7.1 Channels

LAN Chipset: Dragon RTL8125BG

Max LAN Speed: 10/100/1000/2500Mbps

SLI Support:

CrossFire Support:

RAID Support:

Back I/O Ports: - 2 x Antenna Ports (on I/O Panel Shield), - 1 x PS/2 Mouse/Keyboard Port, - 1 x HDMI Port, - 1 x DisplayPort 1.4, - 1 x Optical SPDIF Out Port, - 1 x USB 3.2 Gen2 Type-A Port (10Gb/s) (Supports ESD Protection), - 1 x USB 3.2 Gen2 Type-C Port (10Gb/s) (Supports ESD Protection), - 2 x USB 3.2 Gen1 Ports (Supports ESD Protection), - 4 x USB 2.0 Ports (Supports ESD Protection)*, - 1 x RJ-45 LAN Port with LED (ACT/LINK LED and SPEED LED), - HD Audio Jacks: Rear Speaker / Central / Bass / Line in / Front Speaker / Microphone (Gold Audio Jacks), , * Ultra USB Power is supported on USB_34 ports., * ACPI wake-up function is not supported on USB_34 ports.

Wireless LAN:

PCI-Express x16 Slots: 2

PCI-Express x4 Slots: 0

PCI-Express x1 Slots: 2

SATA 6 Gbps Ports: 6

SATA Express Ports: 0

M.2 Ports: 3

M.2 Devices support: 2242 / 2260 / 2280 - M Key, 2242 / 2260 / 2280 / 22110 - M Key, 2230 - E Key

RAM Slots: 4

Maximum Supported RAM: 128GB

Onboard USB 2.0: 2

Onboard USB 3.2 Gen 1: 1

Onboard USB 3.2 Gen 2: 1

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Features & Specifications

Given Corair's highly successful RMx power supplies, which lack the digital interface found on all RMi models and use a different fan to bring costs down, the company thought to do something similar with its high-end HXi family. But instead of naming the new line HXx, which would have looked strange, Corsair simply removed the letter "i." After all, there was already a portfolio of HX PSUs. Now it's revamped with new members.

The HX line-up includes four models with capacities ranging from 750W to 1200W. The biggest difference between Corsair's HXi and HX models, besides the latter's lower price, is the lack of software control/monitoring, since a digital interface circuit is missing from the HX family. Both the HXi and HX PSUs use the same 135mm FDB fan. It's incredibly quiet, even at high speeds, so we expect these lower-cost models to still feature great acoustic profiles under any circumstance.

Apparently not every enthusiast wants a power supply with digital circuits. Some have no intention of connecting their PSU and motherboard, believing that simpler is often better. This also gets around an extra installation step, even if it's just one cable and some extra software.

According to Corsair, the HX1200i and HX1200 we're reviewing today are separated by only $10. We figured the HX1200 would be significantly less expensive, making it more attractive. But that tiny delta compels us to lean towards the HX1200i, frankly. The only HX model with a notably lower price tag than its HXi equivalent is the HX750, which costs $30 less.

At least all of the HX units are similarly modular, with the ability to toggle between one and multiple +12V rails through a switch on the PSU's rear panel (where the modular cables plug in).

The same warranty that covers Corsair's highest-end PSUs also applies to the HXes, giving you 10 years of protection. With the cryptocurrency craziness in full swing, we expect a lot of HX units to power mining rigs operating at nearly full load continuously. Under such harsh conditions, a 10-year warranty could prove catastrophic if RMAs start rolling in at an accelerated rate. We don't think any power supply will last for prolonged periods of time under the kind of duress that mining imposes. We've even heard that some companies are thinking about cutting their coverage if a PSU is used for mining, though we're not sure how they plan to prove this.


Corsair's HX1200 achieves a Cybenetics ETA-A rating and an 80 PLUS Platinum certification. When it comes to noise, it is LAMBDA-A-rated, indicating very quiet operation. The list of protection features is thorough; Corsair even offers OCP at +12V through a switch, located on the back of the PSU.

The 135mm cooling fan uses a fluid dynamic bearing, so it should last quite a while. In a PSU backed by a hefty 10-year warranty, the fan has to be super reliable.

A 20cm depth makes this a long PSU, indeed.

Power Specifications

Max. PowerAmps30301003.50.8
Total Max. Power (W)1200

The minor rails boast an impressive 150W of maximum combined power, while the +12V rail can deliver up to 100A if needed, handling the PSU's full power on its own. Lastly, the 5VSB rail is also quite strong with 17.5W capacity. We like to see 1kW+ PSUs with beefy 5VSB circuits.

In the multi-+12V rail mode, there are eight +12V rails with 40A maximum current output each. All of the rails combined can deliver the same wattage (1200W) in single-rail mode, of course.

Cables & Connectors

Modular Cables
DescriptionCable CountConnector Count (Total)AWG
ATX connector 20+4 pin (600mm)1116-20
4+4 pin EPS12V (650mm)2218
6+2 pin PCIe (670mm+100mm)4816-18
SATA (450mm+115mm+115mm+115mm) 31218
SATA (450mm+110mm+110mm+110mm) 2818
Four-pin Molex (450mm+100mm+100mm+100mm) 2818
FDD Adapter (+100mm) 1120

There are two EPS connectors along with eight PCIe ones, all available at the same time. The number of SATA connectors is huge, while the eight four-pin Molex connectors should cover every need. Some miners would probably ask for 10 or 12 PCIe connectors, but Corsair obviously didn't have a cryptocurrency boom in mind when the HX1200 was being designed.

Power Distribution

As mentioned, there is a switch that lets you choose between one +12V rail or multiple ones. In the HXi models, this is achieved using the Corsair Link software. However, since the HX models don't have a digital interface, a different approach had to be used.

The +12V rails can deliver up to 40A each if the multi-rail mode is selected. According to Corsair, each individual connector in this PSU has over-current protection, so no more than 40A goes through any given cable.

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Aris Mpitziopoulos is a Contributing Editor at Tom's Hardware US, covering PSUs.
Corsair Recalls PSUs — Models and Production Dates Detailed

Review: Corsair HX1200i


The Corsair HX range of power supplies kickstarted the company's move into premium PSUs back in 2006. The range survives almost 10 years later and is now equipped with higher-performance internals, better aesthetics and improved cabling.

Yet Corsair has realised that PSU segmentation is key in having a diversified portfolio. There are a number of ranges that overlap one another in terms of price, albeit differentiated with respect to capacity, features and performance.

One of the latest entrants to this ever-growing list is the HXi range that sits just below the range-topping AXi. Both sport 80 PLUS Platinum-rated efficiency, feature all-Japanese electrolytic capacitors, are compatible with Corsair Link software, and can shunt all their capacity down the 12V line at a toasty ambient 50°C. HXi is a little cheaper, relatively speaking, and we'll explain why.

The AXi uses fully-digital power regulation that's controlled by a dedicated digital signal processor. This means that voltage regulation is super-tight and vastly more configurable than most other supplies. The HXi, whilst almost as good, does without, but uses a DAC to enable aforementioned Link compatibility.

In a nutshell, the newer HXi range represents a premium range of PSUs that, according to Corsair, are just a shade less precise when tested with specific equipment. The financial difference is greater, mind, as the HX1200i costs £200 while the equivalent AXi model £250 or so.

HXi is available in 750W, 850W, 1,000W and 1,200W capacities, and Corsair uses a roomy chassis for all. The biggest of bunch, the reviewed 1,200W, is 200mm deep, so do check your chassis to ensure it fits fine - though, truth be told, if you're looking at this kind of PSU, capable of powering ultra-high-end builds, room shouldn't be an issue. Width and height come in at a standard 150mm and 86mm, respectively. It's a chunky beast, too, weighing in at 3.6kg.

Presentation is slick and the supply looks good; Corsair has homogenised its PSU line-up so that ranges do appear similar on first glance. The HX1200i's size enables the company to use a 140mm fluid dynamic-bearing fan that only spins when needed. In keeping with other premium supplies, the HXi is completely modular, meaning you only connect the cables you require.

14 separate connections service the supply's flat, modular cabling which is easy to manipulate through the regular cutouts in most chassis. The main ATX connector covers the two bottom-right ports and there's enough concurrent cabling to power a nuclear reactor. All in all, Corsair provides 12 SATA connectors, 12 Molex, 8 PCIe (handy for quad-GPU running), and two Floppy.

Note the USB input? It's used to communicate with Corsair's Link monitoring software, while a fan test button is, funnily enough, added to reduce RMAs. Corsair says the supply's zero-fan mode during light use can fool some users into thinking that it's not working (which is intended) so a quick press of this button makes the 140mm fan spin momentarily.

The zero-fan mode is rather useful for low-noise aficionados because the high efficiency associated with Platinum-rated supplies produces so little heat. Indeed, the fan doesn't turn on until almost 500W is delivered to the PC, meaning that even Titan X SLI-bearing systems will barely tickle the need for the fan to turn on: impressive if you like quiet, powerful builds.

Inside, Corsair extends the partnership with OEM-maker Channel Well Technology for the HXi supplies. Soldering is very good for the main PCB though not quite as perfect for the slot-in cards. Six Y capacitors, three X capacitors, two coils and the usual bridge constitute the first-line filtering. Nippon Chemi-Con is the go-to provider for both the primary and secondary electrolytic capacitors. Enesol and Apaq, meanwhile, provide the polymer caps.

We reckon a little internal reorganisation could reduce the chassis length to, say, 180mm, but there's really little need to do so for the intended market. As usual, a DC-to-DC design means that the smaller rails are fed off the main 12V, whose capacity is the same as the total available on the PSU.

Amps/watts and voltage






Rail amps






Maximum rating





Maximum continuous rating

1,200W @ 50°C ambient

It would take a rather gargantuan build to eat up the 1,200W of 12V power available on this model that's backed by a seven-year warranty.


Hx1200i review corsair

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Corsair HX1200i Power Supply Unboxing - 1200 Watt Platinum Rated PSU

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