Is that the only "bad" thing they had to say about it? JonnyGuru gave it 10/10 in performance, including efficiency. KitGuru who test at 230V found the unit peaked at 93.67% at 50% load. It's not perhaps as much more efficient than the G2 1300 as you'd expect, but it is still a little more efficient.
Or a
LEPA 1600W which is more efficient and costs the same. The user reviews are a bit iffy but it's also a very small sample of reviews, and
JonnyGuru gave it excellent grades
No they had some other negatives about the power supply along with the good.
Review link.
http://www.hardocp.com/article/2012/10/15/corsair_ax1200i_power_supply_review/9#.U2O2kI0U-yI
The Bottom Line
Corsair has refreshed a lot of its product lines in the last year or so and "refresh" is probably the right term as we have yet to see any of these products truly knock our socks off. Today we looked at Corsairs newest refresh, the AX1200i and that "refresh" trend has largely continued. Overall, the AX1200i is a very competent performer, with one flash of brilliance. Indeed, the unit displayed very good voltage regulation, excellent efficiency, and the best DC Output quality we have seen to date which is quite the achievement. Where things start going a bit less well is when we look at the Transient Load Test results and the noise output which both trail the previous AX1200; the voltage regulation was also very similar so we could probably include that here as well.
We had some further issues with the AX1200i unit as there were some sloppy fixes in the build quality and the 80 Plus efficiency numbers were not quite up to snuff. With all of this in mind, this unit is certainly in the realm of very good but so are a slew of other units these days and pricing is key. Currently, the AX1200i is retailing at $349.99 compared to things like the Corsair AX1200 at $266.98 with Free Prime Shipping, XFX ProSeries 1250W at $234.99 after $20 MIR, Antec HCP-1200 at $199.99 after $30 MIR, Enermax Platimax 1200W at $309.99; you get the picture. While the AX1200i can compete with most of these units, it does so at a huge price penalty. The AX1200i is a bit hampered again by the fact that it just is not a huge leap forward over the AX1200, except in the DC output quality. In the end the AX1200i just does not dominate it lesser priced competitors. This makes the AX1200i PSU an extremely hard sell to make unless you are buying solely for the ripple/noise values.
To put the pricing on this unit a bit more into perspective, you can buy the Lepa G1600 (reviewed here) for $294.99 after $20 MIR and literally be done buying power supplies for years based on capacity needs in one shot, which is what we would do rather than even think of buying the Corsair AX1200i.
Corsair seems to be coasting rather than innovating when it comes to truly building a better overall power supply. As for the Beta Link software, we were unimpressed with it and it did not seem to bring value to this product which should "work right" without it. As past software solutions have shown for Corsair over its entire product line, software is certainly not Corsair's strong suit, in fact you could likely argue that software is Corsair's Achilles' heel, so seemingly trying to hang its $350 PSU hat on gimmicky software is simply a bad move.
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