Rated 4.6 out of 5 by 5
Rated 3 out of 5 by MDS1968 A bit underpowered and a real shame about the cables!
5-7 years ago premium PSUs came with good quality cables as standard (remember the Enermax Galaxy?). The individual cables were properly colour coded, used large numbers of small diameter conductors and thin high grade insulation to ensure high flexibility and were properly protected with nylon or textile braid. Then the manufacturers started to use all black cables with thick, cheap insulation leading to very poor flexibility and, as a final insult, eventually joined them all together to form a ribbon cable!
I have been purchasing Corsair PSUs since they first appeared on the market place and have used them in over 100 high-end PC builds. However, their standard cables have become increasingly cheap looking, bulky and inflexible to the point where clients, family and friends always insist on aftermarket replacements for their builds. This would be more bearable if their prices were still keen, but the cost of a 1000W PSU has almost doubled in the past 5 years without any major improvements in the quality of other components (I am an Electronics Engineer by trade and I am not impressed by the marketing hype which now permeates this market).
I used to run AX1200is in both my main water-cooled PCs, but had to replace the first one when I upgraded to a triple Titan set-up as the 12V rail(s) became unstable past 1088W (Output). I had an almost identical problem when I upgraded to two high end AMD GCs in the other PC when I reached 1104W. Thankfully, the previously purchased Corsair premium AXi cable sets also fitted the 1500AXis. Unfortunately, I needed 2 cable sets per PSU as they lacked sufficient peripheral 4 pin molex leads. Ironically, the manufacturer’s ‘push’ to get enthusiasts to buy better quality aftermarket cables and their availability allowed me to solve this issue quickly and cleanly without having to build my own custom cables. However, a few spare interchangeable (for SATA) 4 pin Molex cables should really be provided as standard given the likely use for any PSU greater than 1000W, especially as many high end systems will be fitted with banks of HD carriers which often use peripheral connectors for power (not forgetting Water-pumps, Fan controllers, RGB LED Controllers, CCL Inverters, Flow Rate Displays, Sound Cards, etc). In fact, I only use one SATA PSU connection (Blu-ray drive) in each of my 6 household PCs, despite them all having 6 -15 HDs.
In summary, given the issues I have had with these units when pushed close to their upper limit, I would recommend that serious enthusiasts go straight for the 1500W model and bypass this unit completely. If you are certain that you only need 1200W, I can thoroughly recommend the Seasonic X1250W which served as a stop gap measure in one of the PCs previously mentioned until the AX1500i was available.
23 January 2016
Rated 5 out of 5 by Simpsonite Flawless
I could sum this PSU up with one word. Flawless. Scarily efficient! Quiet, cool running and endlessly tweakable profiles. Funning two fairly hungry GPU's (XFX Radeon R9 290x Black ed.) and still only pulling around 600w at full load!
Oh and as an added bonus it looks pretty nice too ;)
26 June 2015
Rated 5 out of 5 by Adam42 What do you expect
Corsair never fail to deliver high quality components. The packaging itself is very high end.
Easy instuctions, all power cables are braided and in black, which adds to the overall tidyness of the install.
For those with old Gen MOBO's ( Asus P5Q-E ect...) be warned that the interface connection might not function as designed but an old LGA 775 board should be replaced soonish before all support and upgrades are obsolete or just insanely expensive ( yes crucial that was aimed at you!!!).
Buy this and never buy a PSU again.
02 June 2014
Rated 5 out of 5 by Dano Definitive Power Supply.
Very expensive but worth it, it scales excellently, haven't seen it drop below 99% on my low end rig, I bought this as I plan to progressively upgrade and 1200W is more than enough for even the most intensive set ups. Even on full load I don't draw enough power from this to start the fan, recommend to anyone that has or plans to have a high end rig with quietness in mind, the only thing is the price.
02 May 2014
Rated 5 out of 5 by Lukozer Pricey, but worth every penny!
Amazingly this is my first ever modular PSU, so although this is a bit of an expensive one, the reviews i've read make it clear that it is a top PSU. I was not disappointed. Build quality is excellent, definitely the best i've seen in any PSU I've had before (including the likes of Enermax, Coolermaster and previous Corsair units#. Device connectivity is second-to-none, with plenty of each connectors readily available to you, including no less than 16 SATA connectors! No danger of running out of storage options, even with a high-end X79 board you're likely to run out of SATA ports long before you run out of SATA power connectors! Amps are extremely good right across the board, with just over 100 amps on the +12v rail, so this PSU could run tri-SLI GTX 780's effortlessly... and probably tri-SLI GTX 780 Ti's #i'm "only" using dual-SLI GTX 780's). Yes it is expensive for a power supply, but if ever there is a PC component you do not dare cut corners with, it's the PSU. The quality of this unit is plain to see, it's well worth the extra you pay for it.
12 November 2013