Seasonic's latest flagship power supply is here.
Howdy howdy guys ponchato here, and today we'll be taking a look at the Prime AirTouch
850 power supply from Seasonic.
Thanks to Seasonic for sending this over for review, and let's get started.
The Prime AirTouch was just released on June 25th of 2018 and as part of their Prime series,
is targeted at high end enthusiast builds.
It's an 850 watt power supply with an 80 Plus Gold efficiency rating and it comes with
fully modular cables.
In terms of size it's fairly typical for an ATX power supply at 170mm long.
One benefit of being a full-sized power supply like this is that Seasonic can cram an 11
blade, 135mm fan inside, whereas most typical power supplies only have a 120mm fan.
Larger fans move more air with less noise, so this is a great feature to have.
The fan utilizes a Fluid Dynamic Bearing which is in the top tier for noise and reliability,
and the AirTouch comes with a pretty interesting fan control scheme, which we'll go over
in a bit.
Because this is a Prime power supply and one of Seasonic's highest end offerings, the
AirTouch comes with an enormous 12 year warranty.
Putting it in perspective, that means one purchased today would be covered until the
year 2030.
That's quite a while.
The box is completely covered in a reflective coating but otherwise follows Seasonic's
usual design philosophy of "pretty and informative".
One edge has all the connectors listed along with their cable lengths, important for those
with larger cases or curious about cable management, while the other edge shows the specifications
and electrical ratings.
The back of the box has more detailed information about the various features of the AirTouch,
along with a graph of the fan control schemes you can select.
Inside the box is, well, another box with only Seasonic's logo.
Inside this box is all the good stuff.
Right on top is a small bag with an informational pamphlet, a Prime case badge, and some Velcro
and plastic zip ties.
Below that Seasonic included a $15 Netflix gift card, only valid in the US, and another
pamphlet detailing the entire Prime series of power supplies.
Next we have the wall power cable, case mounting screws, and then a woven, pull string bag
filled with all the modular cables.
Below that is a super handy power supply tester, which I'm actually amazed isn't more common.
The tester lets you turn on a power supply without a motherboard or anything else connected,
which is very handy for troubleshooting.
Finally, we get to the power supply itself.
Seasonic wraps it in a quite fancy velvet bag and here we have the Prime AirTouch.
Side note I'm a really big fan of their fan grill design on the Prime series, and
I think this red and black color scheme looks really sweet.
Taking a look at the electrical ratings chart, we see something that I always appreciate
from power supply manufacturers, especially Seasonic who has a long history of doing it.
The vast majority of power consumed by a computer comes from the 12V rail – it's the primary
driver of both the CPU and GPU in any computer.
Seasonic designed the AirTouch to deliver nearly 100% of its rated power on the 12V
rail alone – 840 watts compared to the overall rating of 850.
That's in addition to the power available on the 3.3 and 5V rails, which means that
if your total expected load from your processor and graphics card or cards will be right up
to the rated capacity, the AirTouch can handle it.
On top of that, Seasonic has opted for a cable-free design, which means instead of cables connecting
the various components inside the power supply, everything is connected through a copper plate.
This reduces the chance of anything coming loose during manufacturing and shipping, and
is part of the reason why Seasonic can offer a 12 year warranty – it's less likely
to break.
In terms of safety, the AirTouch comes with every circuit protection feature you need:
over power, over voltage, under voltage, short circuit protection, over current, and over
temperature protection.
That's what all the three letter abbreviations like OPP, OVP, and UVP refer to when you're
looking at a power supply's specifications.
On a final note of electrical specs, Seasonic achieves what they call "Micro Tolerance"
load regulation which means output voltage is kept to within 0.5% of its target under
load.
This is important for system stability and really important for overclocking because
if the voltage going into various components like the CPU VRM falls out of alignment, it
can push voltage regulators and other parts past what they're safely designed to handle
and either crash the system, if you're lucky, or kill your parts.
Tight tolerances like on the AirTouch make sure that doesn't happen.
The AirTouch has a plethora of power connections on the back and with the included cables,
gives you a huge amount of room for expansion.
It has four 4-pin CPU connectors, six 6+2-pin PCIe connectors, enough SATA connectors for
10 hard drives or SSDs, 5 Molex connectors, and a floppy drive connector if you still
have one of those for some reason.
Only the 24 pin motherboard cable is sleeved, while the rest are flat, black ribbons.
As a minor note, the SATA connectors are all SATA 3.3 compliant which means that they won't
cause problems with hard drives that support the power disable feature – mostly used
in business and server environments and not often a concern for home users, but with the
AirTouch it won't be a problem at all.
Before we get to the noise and power test results, I wanted to cover the Hybrid Five-way
fan control scheme.
A button on the back cycles through 5 different fan curves and lights up to indicate what
setting it's currently on: white, blue, green, yellow, or red.
White is the silent mode, which allows the fan to completely stop below 40% load, ramps
up to a low RPM between 40 and 80%, and spins up the fan heavily above 80% load.
Blue, the default setting, keeps the fan running at a minimal RPM until about 60% load at which
point it will start to spin faster.
Green keeps the fan at around 65% of its max speed until the power supply hits 80% of its
capacity, at which point it spins up.
Yellow sets the fan to 80%, and red sets it to 100%.
These settings are, as they should be, treated more as "suggestions" than absolute commands;
if you have the AirTouch under a heavy load in a hot room and the components inside start
to reach unsafe temperatures it will spin up the fan to keep everything safe, regardless
of what you have selected.
Now that we've covered the fan control scheme, let's talk about results.
My test setup for power supplies is a Ryzen 3 1200 overclocked to 4.1GHz at 1.35V with
8GB of DDR4-2400 memory and a stock GTX 1060 3GB.
Idle results are taken with no programs running, load results are taken with Prime95 and Unigine's
Valley running stress tests, and power measurements are for the entire system as measured at the
wall.
Looking at the idle results, you can see the Prime AirTouch lives up to the Prime reputation.
With the fan set to the silent or white setting, it doesn't need to spin up at all and therefore
doesn't make any noise.
Power consumption at idle really isn't much of a concern, but the AirTouch does come out
ahead of every other power supply I've tested to date.
Looking at the load results, you can probably guess that the fan didn't need to turn on
here, either.
In terms of efficiency the AirTouch comes out slightly ahead of the also-80-Plus-Gold
Focus and Focus Plus power supplies, but only by a few watts.
This last chart shows the noise levels of the 5 fan speed settings.
The fan is completely stopped at white, ramps up a good amount at blue, and then follows
the predictable trend of "louder as it spins faster".
Personally I don't think I'd find much use for the yellow or red settings, because
those noise levels would really only be suitable in a server room or if your computer were
well separated from your work space.
But, that's the beauty of the system: you get to choose how much airflow you want and
how much noise you can tolerate.
Now let's talk about the pros and cons.
The AirTouch has a lot of pros, so I'll just try to cover the important bits.
First, this is the most efficient power supply I've tested to date at both idle and under
load.
That bodes well for your power bill, heat output from your computer, and the noise level
in your room.
Second, the AirTouch has the longest warranty of any power supply I've reviewed, and as
far as I know, 12 years is the longest warranty you can get on any consumer-level power supply.
Third, this is the quietest power supply I've tested at idle and under load, and if you're
a fan of quiet computers like me, that's a huge deal.
Finally, I think this is one of the best looking power supplies on the market today.
Seasonic's design for all the Prime fan grills looks good, but I really like this
red and black color scheme.
I like it enough to where I'd have the AirTouch fan-side up in a window case, even if there's
a vent for it to pull in air from underneath.
Nobody's perfect, close as they may be, so let's talk about the cons.
Or, con, really.
My only major issue with this power supply is that the first selectable fan speed is
quite a big jump in noise from the fan being off.
If you leave it at the white or "silent" setting, it will slowly ramp up the fan speed
when needed, but manually going to the blue setting ramps up the fan to around 900 RPM
by my measurement.
I think a lower speed, something like 500 or 600 RPM, would have been better for a typical
build.
At that speed it would assist with case airflow unlike the white setting, while still being
effectively inaudible in most environments.
In summary, if you're looking for a top-end power supply for a top-end build, Seasonic's
Prime AirTouch 850 is an excellent choice.
You get fantastic efficiency, a wide range of fan control, and a ridiculous 12 year warranty,
on top of Seasonic's legendary quality.
Extremely tight voltage regulation and an oversized 135mm fan both contribute to the
list of reasons why the AirTouch might be the ultimate power supply of this generation.
At $160 it's firmly planted in the enthusiast category, and for a high-end build, that's
money well spent.
Follow the link in the description to pick one up for yourself.
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and if you have any questions on Prime AirTouch or these tests, leave them in the comments
below.
Thanks for watching, I hope I helped, and I'll see you in the next video.
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