Seasonic FOCUS Plus 850 Gold SSR-850FX 850W 80+ Gold ATX12V & EPS12V Full Modular 120mm FDB Fan Compact 140 mm Size Power Supply
|Model Name||FOCUS Plus 850 Gold|
|Output Wattage||850 Watts|
|Power Supply Design||Full Modular|
|Item Dimensions LxWxH||5.51 x 5.91 x 3.39 inches|
|Item Weight||1.6 Kilograms|
|Fan Size||120 Millimeters|
About this item
- Make sure this fits by entering your model number.
- COMPACT SIZE - 140 mm DEEP; High power output to size ratio
- FULL MODULAR; use only the cables you need to reduce clutter and improve airflow for a better ventilated system.
- 80 PLUS GOLD; 87% efficient at 20% load, 90% efficient at 50% load, and 87% efficient at 100% load.
- HYBRID SILENT FAN CONTROL; The industry's first, Seasonic patented, advanced three-phased thermal control achieves optimal between silence and cooling. This Hybrid Silent Fan Control functions in three operational stages: Fanless Mode, Silent Mode, and Cooling Mode.
- 10 YEAR WARRANTY; Our commitment to superior quality.
This product is available as Renewed.
Works and looks like new and backed by the Amazon Renewed Guarantee
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|Sold By||Computer Headquarters, Inc||Amazon.com||Amazon.com||Amazon.com||Amazon.com|
|Item Dimensions||5.51 x 5.91 x 3.39 inches||6.3 x 5.91 x 3.39 inches||6.3 x 5.91 x 3.39 inches||5.9 x 3.39 x 6.3 inches||11.3 x 8.3 x 5.1 inches|
|Item Weight||3.53 lbs||3.66 lbs||3.75 lbs||4.00 lbs||—|
Seasonic engineers have created a brand new product line based on advanced technology emanating from many years of intensive active research. The result of this development is the solid FOCUS+ Series, which implements modern design and shows outstanding electrical performance. This power supply is small and entirely modular, which will be hard to resist. It is available in 80 PLUS Gold efficiency ratings.
This power supply is only compatible with cables provided by Seasonic. Any other cables not approved by Seasonic will result in item malfunction.
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for reference the product i purchased was the FOCUS PLUS 850 80+platinum so for such a high end product to fail like that is an obvious quality control issue as i have NEVER in my years of building had a PSU fail this miserably.
UPDATE: i contacted customer support and they will replace the unit provided i pay the $20 shipping and handling but they will NOT replace the drives, which doesnt come as a surprise but i figured i would try. so i was better off just returning the product to amazon to actually get my money back instead of just a replacement. i probably just got a bad unit but like i said before ive never had a PSU fail like this so i have no choice but to advise against this PSU. its one thing for a unit to die over time but to be DOA, that is is just a quality control issue so it could easily happen again.
Only problem is the TERRIBLE SCREECHING and CRACKLING noises coming from them starting from the moment the PC they're connected to is powered on. It is so loud, I can easily hear it from the other room!
And I'm not talking about a little coil whine here. I'm not even sure this is coil whine at all. It is an overpoweringly loud, absolutely constant and consistent, high-pitched ringing. In fact the 750w is so loud the ringing stays in my ears for a minute after I power off. Not only that, but other components in the motherboard start shrieking just as loud, too. VRM's and power sections of dedicated GPU's contract the noise. I can hear it by putting a straw in my ear and pointing the other end at the GPU, the heatsink over the vcore VRM's, and I even more loudly from the back side of the motherboard, right where those VRM's sit. Louder still coming from the PSU, with it outside of the case and away from the machine.
This carries into my USB audio interfaces too. The noise through the speakers is so loud that even the loudest, most heavily compressed music can't get on top of it. Scarlett 2i2, JBL LSR 305's, hooked up balanced, with high quality cable. It's only there with these PSU's. In fact the noise sounds exactly like the audible noise coming from the PSU and other components. Crazy! How does that happen?
Frankly that level of interference is concerning. Interference that actually carries through like that often kills parts very quickly. I'm surprised it ran at all, considering how little ripple it takes to bring everything down. I'm glad everything still seems to work.
I have tested 3 different motherboards of my own, 2 of my machines, another that was somebody else's. Tried different outlets, different rooms, different buildings even. Something is terribly wrong here. Other PSU's don't have this problem with these same components.
I've never owned a Seasonic before this, but I always thought of them as one of the best. But after all of this back and forth just to try and get one that doesn't shoot interference into my machine and everything connected to it, I may never buy one again. Huge disappointment from a company that's supposed to have among the best quality stuff. I don't expect a $100 PSU to act like this when even a $30 PSU doesn't.
Again, I'm surprised my computer worked at all. I mean, the interference made other components scream out in pain! That's not merely a little coil whine - that's something else entirely. I don't want to believe that I wound up with two bum Seasonics... ...but to even have one that does this honestly looks pretty bad on them.
To outline the extensive rounds of elimination strategies and troubleshooting I've done would take a long time, but I can promise you, I have done everything I can to try and uncover some other cause. There is not a single combination of things out there that will make this go away. I have really tried. There simply isn't one. Sorry Seasonic. I want to like your products but right now I'm not feeling too confident. I've wasted too much time on wanting something to be good, because everyone says its good, when it just isn't.
Really makes me question the quality control on these things. Buyer beware. Test your PSU outside of the machine before completely removing the old one.
It arrived today, with everything looking good. Took out the old PSU, put in this one, and flipped the switch. Lights go on for a split second, then everything dies. Not exactly pleased, I took it out and put in the extra, non-modular PSU, and my computer booted back up again, except this time it was saying that there were no boot devices installed. I went into my BIOs and sure enough, my boot drive (a SSD I've had for a few years now) was gone. I even switched my cables around (both the power connector and SATA) to make sure something wasn't wrong with them, and no matter what I did, it was only the boot drive that never showed up.
Now, I'm glad that I didn't put anything very important on said drive, as it was mainly just to boot up Windows 7, but I ended up "upgrading" to Windows 10 because it seems like Microsoft made it as difficult as possible to do a fresh install of the former without a DVD drive, which I'm lacking at this point. Either way, I'm not too pleased that I just lost a SSD, and I'm hoping I don't eventually find out that something useful was on that drive.
By Ryun on March 17, 2019
Top reviews from other countries
I am however quite disappointed that the power cable that came with the PSU was in fact a European plug and not a UK plug, I know its only around £5 to buy a new one but its still a price I was anticipating, I assumed that because it was being sent from the UK to the UK it would be packed with a UK plug. I feel like the plug type needs to be specified in the product description.
Ill probably post an updated review once I actually get it running.
This Seasonic is the second of this brand purchased.
The Focus line comes well packed with all the cables and hardware needed to run a fairly standard motherboard with Intel chipset.
The fully modular i.e. no cables permanently fixed to the chassis means that installation is straightforward, but probably adds to the cost.
Unfortunately, the power cable supplied was a two pin Schuko European type, despite the fact the unit was going to a UK address (The supplier is German).
The Seasonic instructions supplied are minimal and the usual multi-language - the English relevant instructions cover about two sides of booklet pages, so if you need to know more, you will have to go to the Seasonic website.
Fortunately, the ATX standard makes it difficult to get things wrong, but as a precaution, I log all the old cables before removal (I use key tags attached with cable ties to identify both ends of the cables).
All the new cables fitted the Asus motherboard, the only slight issue being the additional 4-way CPU cable which has a 4-way socket on the motherboard, but the Seasonic cable has two separate 4-way plugs fitted. As the Seasonic cables and separate wires are not colur-coded, it took a little while with a multimeter to confirm that the plugs were identical and both carried Ground and +12-volts. The unused plug was cable-tied back to make sure it could not touch and components on the motherboard.
Additional cable tie self-adhesive bases helped keep everything firm and tidy.
Powering up was straightforward and in use, this PSU is pretty much silent. The PSU has a pushbutton on the back of the unit which can be used to set the working mode of the cooling fan. Exactly what it does is not explained in the instructions, but one mode seems to be fan speed proportional to PSU temperature, the other has the fan running and blowing warm air from the rear of the PSU. Very little noise is heard and this new PSU has produced a much quieter running PC than before.
Overall, lightweight instructions and unusable mains lead aside, I would recommend this unit and would buy again
This Platinum 750 was a breeze to install. I think the cables are great - all covered with flexible braided black material and both ends are labelled so you can't really go wrong. Many are x/y (or x+y - same thing) meaning a block of x holes for older motherboards and a decoupled one (2 holes) for newer motherboards, so you can use just x holes or x+y holes. eg the PCI cables are 6/2; use just 6 or plug the other one in for 8.
To untangle my old PSU I simply unplugged one cable from the motherboard and replaced it with the corresponding cable from the new PSU. Repeat until all replaced - no mistakes can be made and no need for the motherboard manual thinking "where's that connector?!".
When doing motherboard work remember to pull the mains cable out first, then press the power button on the PC to drain away residual current stored in capacitors. Mine had enough left to spin up the CPU fan and graphics card for a second.
It is really quiet. The fan hardly comes on. Even running Folding At Home using both my new graphics card and my Intel i7 6700k 4Ghz the fan rarely comes on and when it does it's more for a waft than a hovercraft belt of air. My system is typical with a few SSD drives, one HD, a DVD, and the new graphics card (running 95% doing the F@H work). I honestly don't need 750W but it had a price reduction at the time.
There's a button on the unit which makes the fan run idly at all times if you wish.
It all feels very well made and is well packaged and presented. The PSU comes in a black drawstring bag nestled in sturdy a foam tray. Comes with a manual which I haven't read yet. Unhelpful I know, but helpful in that you don't need to read it to get your system up and running.
It came with a UK power cord and plenty of cables for me (I had a few left over). Importantly it had 6/2 pin PCI (x2) cables and x2 SATA cables (each with 4 heads).
6 pin PCI was designed for 75W. 8 pin PCI are rated for 150W. You can buy adapters to convert 6 pin to 8 pin but they wont magically increase your PSU electronics to deliver 150W.
That's why my new graphics card wouldn't come on - it knew my PSU couldn't deliver more than 75W so refused to budge even though it doesn't need all that juice when idle. A sensible strategy - it needs a horse not a pony.
I love the modular style. Having only the cables you need inside the PC makes it less cluttered and helps with the air flow. My old PSU in contrast was an explosion of cables to cover really old motherboards and (at the time) newer ones.
For full spec and list of cables I suggest going onto seasonic dot com into the focus-plus-platinum path and you'll find detailed information including easy to understand cable schematics - technical drawings rather than hard to fathom photos of curled up distant cables.
I'm impressed with the quality of this PSU and their website; it's the latter that made my mind up, knowing exactly what cables I was getting. 10 year warranty too.
When I opened the PSU box I did notice one of the plastic bags was torn but didn't think anything of it. So clearly it wasn't working before and someone had returned it, only for Amazon or the seller to send it out again.
The cables were very stiff too when trying to install it.
First time buying Seasonic, after a lot of people and websites recommending them. Can't say I was impressed. I went back to Corsair again. My last Corsair PSU has been going for 7+years.
FYI Seasonic expect their sellers to deal with faulty units for the first two years of warranty - after that they pick up warranty returns. Scan Computers attempted to fob me off by referring me to Seasonic after just three months, so I wrote to Seasonic who, while happy to help, stated that EU regulations and their contract with their seller presumably, mean the seller should be dealing with it. I wrote back to Scan telling them about this response and they then agreed to accept the return. That's not great customer service and I will be avoiding them in future - which is saddening because I like to support local northern companies whenever I can.