Seasonic M12 II Bronze Evo Edition 850W PSU Review

Allan 'Zardon' Campbell August 23, 2013 Featured Announcement, Power Supplies

The M12 II Bronze Evo Edition ships in a box which is clearly modelled on the X-Series. The same blacks and subtle orange/yellow accents are adopted for this design.

The bundle includes a user manual, cable bag, installation screws, case sticker and regional specific power cable. The power supply is completely encased in thick soft foam for protection.

Seasonic are using high grade flat ribbon style cables with this power supply to help improve routing and to ensure air flow is not obstructed. The main motherboard connector is a traditional sleeved connector.

Cable (modular)	Connectors
MB 20+4 pin	x1 (610mm)
6+2 pin PCIe (3 cables)	x6 (650mm)
CPU 8/4P – CPU 8P (2 cables)	x1 (650mm) /x1 (650mm)
SATA (2 cables)	x8 / x2 (760mm)/ 420mm)
MOLEX (2 cables)	x3 / x2 (640mm)/ (420mm)
FDD	x1 (+101mm)

The M12 II Bronze Evo Edition ships with six 6+2 pin PCIE connectors which will accommodate a tri SLI or Crossfire configuration.

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8 comments

John
August 23, 2013 at 12:40 pm

Expensive, but as always A1+ quality. What a great company, love my X series.
Topperfalkon
August 23, 2013 at 12:42 pm

Great, ill wait on 750W as it will hopefully be £20 less. has everything we need!
TTTT
August 23, 2013 at 12:43 pm

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.
zzz
September 1, 2014 at 3:45 pm

i got 750w version, is that as good as this one?
King-Juventino
October 7, 2014 at 7:28 pm

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.
King-Juventino
November 4, 2014 at 1:51 pm

Yes it is.
Jirka Kolář
January 31, 2015 at 1:28 am

I have only 520W EVO but I hope it’s at least good with only i5 4590 and 650ti boost.