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XFX 850w XXX Edition Semi-Modular Power Supply

4.1 out of 5 stars 17 customer reviews

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  • Total Watts: 850 W
  • Output Current: +3.3V @ 24A, +5V @ 25A, +12V @ 70A,?-12V @ 0.5A, +5VSB @ 3A
  • Connectors: 1x 20+4pin main power connector; 1x 4+4Pin ATX12V/ EPS12V CPU Connector; 4x PCI-Express Connectors; 11x SATA Connectors; 7x Peripheral connectors; 1x Floppy connector
  • Cooling: 135mm ball bearing Cooling Fan
  • Supports multiple high-end graphic adapters (CrossFire X and SLI)

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Product Description

Input Voltage: 90 ~ 264 Vac

Product Information

Technical Details

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Brand Name XFX
Item model number P1850BNLG9
Item Weight 5 pounds
Product Dimensions 12.4 x 7.7 x 3.4 inches
Item Dimensions L x W x H 12.4 x 7.7 x 3.4 inches

Additional Information

ASIN B0050751YS
Customer Reviews
4.1 out of 5 stars 17 customer reviews

4.1 out of 5 stars
Best Sellers Rank #2,522 in Computers & Accessories > Computer Components > Power Supplies
Shipping Weight 9.1 pounds
Date First Available September 28, 2011

Warranty & Support

Amazon.com Return Policy:You may return any new computer purchased from Amazon.com that is "dead on arrival," arrives in damaged condition, or is still in unopened boxes, for a full refund within 30 days of purchase. Amazon.com reserves the right to test "dead on arrival" returns and impose a customer fee equal to 15 percent of the product sales price if the customer misrepresents the condition of the product. Any returned computer that is damaged through customer misuse, is missing parts, or is in unsellable condition due to customer tampering will result in the customer being charged a higher restocking fee based on the condition of the product. Amazon.com will not accept returns of any desktop or notebook computer more than 30 days after you receive the shipment. New, used, and refurbished products purchased from Marketplace vendors are subject to the returns policy of the individual vendor.
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Customer Questions & Answers

Customer Reviews

Top Customer Reviews

Verified Purchase
Got this unit after reading excellent reviews on this line of XFX, Seasonic sourced PSUs.

The rebate that was available by the manufacturer at this point and time was also making it a great deal for a 80+ Silver 850W modular PSU. Surely more and more 80+ Gold units are getting more affordable, but 2% efficiency difference will need more than 5 years of 24/7 operation @ 400W load to make up the $50 or so added initial investment - at least in the continental US were electricity is dirt cheap.

Building quality appears to be solid, and the cables were easy to tidy up in my CM 690 II. Keep in mind that the 8pin CPU cable (part of the non-modular bundle) was a tight fit in this case and a Asus P9X79 Pro motherboard. Users of bigger, full tower cases might have an issue with that an could require an extension)
Some people complain about semi-modular PSUs but I doubt that anybody will be likely doing without the 24pin motherboard connector or the 8pin CPU connector, while most cases can easily hide those behind the motherboard tray.

Unfortunately I was unlucky with my purchase, and got a defective unit. After experiencing weird ripple on the +5V (at least that's what my eye caught), I had the PC shutdown itself while under F@H load in the middle of the night. Seconds after my attempt to reboot it, a loud noise - probably from a capacitor blowing inside the unit - killed the PSU. I do believe I was unlucky, as there are numerous satisfied users of this line of XFX PSUs in enthusiast forums, yet having this happen to you on a unit that was out of the box for 4 days, and really working for around 20H, is something I wish to no-one. No other component was killed by this failure (CPU/Mobo/Wifi Card/RAM/GPU/SSD/HDD) all working fine.
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Verified Purchase
I have never had a problem with it .It The fan is very quiet it has plenty of amps. I have ran three NVidia 470 GTX with it and currently I am running two GTX 670 in SLI mode with one SSD 256gig drive for my OS and five other hard drives one 3 TB and 2 one TB and three 640gb. I don't think it is made any more ,but this was a great power supply.
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Verified Purchase
Needed to upgrade PSU for a sli setup. PSU is nearly perfect, silent, modular, Silver+, even looks good.
The only complaint I have is that the 8pin mobo cable is too short, had to extend it. Also the cables are kind of stiff, almost like they used solid cable instead of stranded in some cases.
Brand new PSU, will update after a few months. Also, to re-iterate, the PSU is SILENT.
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Verified Purchase
The part number listed is actually the non-modular version, and some sellers are selling the non-modular version. That aside PHENOMINAL power supply. The voltages are rock solid, and if you didn't already know that is an overclockers dream. I haven't pushed it very hard yet, namely because I don't have a need, but I am powering dual AMD 3.4 dual cores overclocked 20% and a NVidia 295 GTX which is also a power hog. Running this power supply at 80% and loving it! For the money it can't be beat.
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Verified Purchase
This thing is a beast, the sleek black look with modular design is everything you ever want/need! I love the design of this power supply over any others and i have had multiple power outages and still no damage runs like a champ, will be buying more xfx power supplies in the future because i love this one so much!
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By Dan on December 15, 2011
this semi modular psu saves money where it's needed by making the most common and most likely to be used cables built non modular and the additional data and peripherals modular. A smart decision and very well thought out.

I've added a pic with a few notes.

I had an issue with the mobo giving me the re-reboot whenever I turned on the PC and contacted XFX for some assistance to see if it could be their issue. They were very helpful and alway replied to my messages even after we identified the mobo was the issue so I'm very happy with their customer support.

Haven't tried it on full load and I've had it for about 2 months now.
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Verified Purchase
I like XFX products, have mostly bought graphics cards from them. They did well with this power supply. It looks bad ass, performs well and I especially like the modular style connectors. All power supplies should be like this! Why have cables you aren't going to use?
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Verified Purchase
Awesome product, I upgraded my graphics card to a 560 2win dual and I needed more power and this was perfect. Fit inside my case with no problem, I would highly recommend this product to anyone looking for a great power supply.
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