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Seasonic S12D850 850W ATX12V 70A 24PIN ATX Power Supply Active PFC 120MM San Ace Fan

Seasonic S12D850 850W ATX12V 70A 24PIN ATX Power Supply Active PFC 120MM San Ace Fan - 1
Actual product may not be exactly as shown.
Seasonic S12D850 850W ATX12V 70A 24PIN ATX Power Supply Active PFC 120MM San Ace Fan - 42984_l.jpg Seasonic S12D850 850W ATX12V 70A 24PIN ATX Power Supply Active PFC 120MM San Ace Fan - 42984_1.jpg Seasonic S12D850 850W ATX12V 70A 24PIN ATX Power Supply Active PFC 120MM San Ace Fan - 42984_2.jpg Seasonic S12D850 850W ATX12V 70A 24PIN ATX Power Supply Active PFC 120MM San Ace Fan - 42984_4.jpg Customer Photos (0)
Seasonic Electronics
Reg. Price: $209.99  CAD
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   Shipping Weight:   5 lbs
   Part #: S12D850

Features    [ Edit | History ]
* DC to DC converter design

* Tight voltage regulation within +- 3%

* High Reliable Solid Capacitors

* All in one DC cabling design

* Multiple PCI-E graphics cards support

Specifications    [ Edit | History ]
Type ATX12V V2.3/EPS 12V V2.91
Maximum Power 850W
Fans Silent 120mm fan
PFC Active
+12V Rails 2
PCI-Express Connector 2 x 6-Pin, 2 x 6+2-Pin
SATA Power Connector 9
Efficiency up to 90%
Energy-Efficient 80 PLUS SILVER Certified
Over Voltage Protection Yes
Input Voltage 100 - 240 V
Input Frequency Range 50/60 Hz

Seasonic Electronics S12D850 Customer Reviews

Product reviews on are screened for relevance and inappropriate content. Reviews may contain inaccurate information about the product. If there is a discrepancy, please use the Flag this Review link located beside each review. Reviews are not an endorsement expressed by, but opinions from customers based on their own experience with a product. We do not recommend you make purchasing decisions based on facts or opinions expressed regarding Seasonic Electronics S12D850 reviews.
Experience: 30 Days
 Verified Owner
80+ silver
Annoying coil whine
A lot of non-modular cables, can take up space and get in the way
I picked up this power supply to replace an old 470w. Seasonic supplies are typically well reviewed, however upon installing mine I immediately noticed a high pitch "coil whine" emanating from it. I RMA'd the power supply and the replacement I received still made the same "coil whine", although it was less noticeable. At this point, I've decided to just live with it for now.

Experience: 2 Days
 Verified Owner
-80+ silver
-nice and heavy
-sheathed cables
-made by seasonic (what more is there to say)
-the cables are a tad short
-not really sure if its 70A on a single rail or 40A on dual rails
I bought this to replace two power supplies I had in my gaming pc. Finally I got away from running dual PSUs to a good single PSU. My one real complaint is that the cables are a bit short. The 24pin power was too short to be run behind the mobo tray in my antec 1200 (full tower atx). However it still reached just fine when not behind the motherboard.

Experience: 8 Days
 Verified Owner
Very Long Cable, Very quiet for a 850W, 80 PLUS SYLVER,
Not realy a weaknesse, just lots of cable, Power Supply was build for Mother board use as server, to many for a hardcore gamer. Could be hard to put Cable away on a mid size tower.
I will recommend these Power Supply to anybody, Was a very good price when bought it, very quiet, very efficient, cable are longer then normal Power Supply, a very good choice for hardcore gamers

Experience: 7 Months
 Verified Owner
Stability and heat dissipation, sleeved power cables
Great power supply works great with dual GTX 270 cards and 3x 7200RPM SATA hard drives in place as well as 2 DVD-RW burners installed.

Experience: 80 Days
 Verified Owner
Powerful enough for any home system
stable powr
expensive unless bought on sale
I bought this ps for my sons gaming pc after some trouble starting the pc with an antec 420. His system consits of an ovrclocked amd2 cpu, Nvidia chip based mobo and a 4870 gfx card, 500 gig sata wd hd and a few large fans in an icute case. This seasonic ps slipped in easily and offers more connectors than he'll ever need, His system started up first push of the button and has no problems since. system runs stable overclocked and is cooler to boot!
excellent power supply with expandability in the future

Experience: 2 Weeks
 Verified Owner
More then enough power for most everyone's needs, Very Quiet, Nice and cool, Solid construction, Enough SATA and PCIE connectors for most needs.
Large amount of non-modular cables can make cable routing a challange.
I'm very impressed with Seasonic's PSU. I've been using Enermax for the past 3 PSU purchases, and I have a pretty high expectation from my PSUs. I'm impressed with the quality of this unit. I was running into trouble with my old 450w supply and my Radeon 4890, so I bought this one on sale. Needless to say, unless you have a very small case, I recommend this one highly. It has lots of overhead for overclocking.
There are a lot of fixed cables, so you might want to look at a modular PSU if you have a shortage of space, or like to reduce cable clutter. But for the price, you can't beat the quality.

 NCIX Forum Messages

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Messages about Seasonic S12D850 850W ATX12V 70A 24PIN ATX Power Supply Active PFC 120MM San Ace Fan

Enough power? (computer_newb- Aug 04, 10, 1 Replies) Read this message
Capacity (cabby- Jul 24, 10, 0 Replies) Read this message
Heads up shorter cables (peski- Jan 07, 10, 0 Replies) Read this message
This or Antec Truepower 750w (Belles Toaster- Dec 28, 09, 3 Replies) Read this message

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Forum messages are not reviewed and may not contain accurate information about a product. Message contents are opinions from customers based on their own experience with a product. We do not recommend you make puchasing decisions based on Forum messages.
Reviews from the Web

Below are reviews found on other web sites for this product submitted by customers.

Comment: APH Networks takes apart the Seasonic S12D 850W.
Posted by: chconline @01/24/10
Comment: With new graphics cards on the market from ATI and upcoming units from NVIDIA, the GPU industry isn’t the only one that is flourishing. While these new cards are more efficient than ever, better multi-card scaling means the insatiable need for more power hasn’t stopped and if anything it has increas
Posted by: Chris_O @12/26/09
Comment: The power supply is the most important peice of computer hardware we will ever purchase. Having too little of a power supply in our computers, can give us lower performance levels, overheating, lock ups, crashes, to all out torching of our most valued computer components. One of the manufacturers
Posted by: Chris_O @12/25/09
Comment: Seasonic touts the S12D-850 as a power supply that should be used in conjunction with power-hungry multi-core processors and dual-GPU videocards, and given this PSU's 850W capacity, PCSTATS is inclined to agree.
Posted by: Chris_O @12/25/09
Comment: Stable, quiet, rock-solid power supply. Only drawback is the non-modular design.
Posted by: BernardP @12/11/09
Submit a review link   |   Latest 30 reviews
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