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Corsair power supplies have been winning praise from web tech
reviewers since day one. The AX850 is certainly no exception. It is a winning
power supply in every way electrical performance is tops, efficiency
is high enough for 80 Plus Gold, the build quality is fantastic, the completely
detachable cables are a breeze to work with, the 7-year warranty is the industry's
longest, and the noise level is vanishingly low at almost every power level.
That it gets even quieter in an advanced case with independent cooling intake
for the PSU is an added bonus silent PC enthusiasts will love.
A little caution should be included in Corsair's package: "The
PSU fan will probably not turn on when the computer is booted, and you won't
notice when the fan does start spinning. That's the way it should be."
Almost all of the positive things we wrote about the Seasonic
X-650 can be repeated here, because the Corsair AX850 is largely a higher power
version with a voltage control fan rather than a PWM fan. It also has
the benefit of a year's refinement of the X-series production line. 80 Plus
Gold certified models are premier PSUs, so the near-$200 price tag is no surprise.
Naturally, with its high power rating, the Corsair AX850 is ideal
for a new cateory of PC enthusiast that has emerged in the last couple of years:
Silent Gamers. Yes, strange as it sounds, gamers who like to play those typically
violent games with all kinds of percussive noise effects from the speakers
but without any interfering noise from the PC. With CPU and GPU power in such
profusion, and overclocking now a routine feature in almost every performance
motherboard, simply building a hot rod gaming PC is not the challenge it once
used to be. Building a hot rod that's also silent a sleeper, if you will
now, that's still a challenge, and the Corsair AX850 is a great component
for such a build.
Corsair AX850 Balance Sheet
* Silent at lower power
* Very quiet in typical use
* Even quieter in advanced case
* Very high efficiency
* High quality parts & build
* Totally modular cables
* Excellent electrical performance
* 7-year warranty
* Sample did not quite reach 90% efficiency at mid-power load
Much thanks to Corsair
for the review sample.
Corsair AX850 receives the SPCR Editor's Choice Award
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SPCR Articles of Related Interest:
Power Supply Fundamentals
Recommended Power Supplies
SPCR PSU Test Rig V.4
Seasonic X-400 Fanless
Seasonic X-650: Seasonic Hits
Enermax Modu/Pro87+ 500W
Antec TruePower TP-750
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this article in the SPCR Forums.
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