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The Seasonic M12 II Bronze Evo Edition 850W PSU is nicely finished with deep, thick paint. The product naming is highlighted in plain white on the black background.
The unit passed our ‘screwdriver’ stress test, which involves running a Philip’s head driver down the side of the chassis with weak to modest pressure. How often have you accidentally hit a power supply with some tools during a system build phase?
The paintwork didn’t scratch or mark at all. It is a very resilient finish.
A plain black fan resides behind the black metal grill above. We will take a closer look at the fan later in the review.
One side of the power supply is vented to help ensure there is adequate air flow. Offset at the side is a power button and connector.
This power supply is a pure modular design which is great news when it comes to cable routing. All of the connectors are clearly labelled and size specific to avoid any potential issues. The motherboard connector is connected top left, alongside 4 peripheral connectors. The row underneath comprises a 10 pin M/B connector and four CPU/PCI-E connectors.
| Seasonic M12 II Bronze Evo Edition 850W |
|||||
|
DC Output
|
+3.3V
|
+5V
|
+12V |
-12V
|
+5Vsb
|
|
Max Output
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25A
|
25A
|
70A |
0.5A
|
3A
|
| Total Power | 150W Max | 840W | 6W | 15W | |
| 850W | |||||
The single +12V rail can deliver 70A which is 840W of the total output. Both +3.3V and +5V rails can deliver 25A each – identical to the Cooler Master V1000 1000W supply which we recently reviewed.
Expensive, but as always A1+ quality. What a great company, love my X series.
Great, ill wait on 750W as it will hopefully be £20 less. has everything we need!
They make for so many companies now, Cooler Master, Corsair, XFX, the list goes on and on! Still i always go for the company themselves, even though they cost normally a bit more.
i got 750w version, is that as good as this one?
My S12 II 850W EVO unit is very load, even with load at 280 – 300W to PSU, fan ramps ups very quickly and it’s pretty loud.
My PC with 3770K @ 4.5GHz and GTX 780 @ 1150/1600MHz pulls ~ 440W from the wall in Crysis 3 (measured with watt meter), that’s ~ 370W from PSU and fan hits very high rpm, I would say max.
It’s very annoying and I would recommend anyone to look elsewhere if thy want a silent PSU, this one is a jet.
I really don’t know how your unit (kitguru) and also one on jhonnyguru review was so silent, because there are many issues on the internet with people complaining about noise on S12 II units.
Other than that it’s a very good PSU, it’s a shame that a bad fan / fan profile combo ruined such a great picture.
Yes it is.
I have only 520W EVO but I hope it’s at least good with only i5 4590 and 650ti boost.