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Item#: N82E16817182072

Rosewill Xtreme Series RX850-S-B 850W Continuous @40°C ,80 PLUS Certified, ATX12V v2.2 & EPS12V v2.91, SLI Ready CrossFire Ready, Active PFC "Compatible with Core i7, i5" Power Supply

  • ATX12V v2.2 & EPS12V v2.91
  • 100-240V
  • 80 Plus Bronze Certified
  • Efficiency up to 87% 135mm Ball-bearing Blue LED Fan
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Learn more about the Rosewill RX850-S-B

Quick Info

Warranty

  • Limited Warranty period (parts): 3 years
  • Limited Warranty period (labor): 3 years


Customer Reviews of the Rosewill RX850-S-B

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  • JAMES F.
  • 1/21/2015 5:05:01 PM
  • Tech Level: Somewhat High
  • Ownership: 1 month to 1 year
  • Verified Owner

3 out of 5 eggsGood while it was working

This review is from: Rosewill Xtreme Series RX850-S-B 850W Continuous @40°C ,80 PLUS Certified, ATX12V v2.2 & EPS12V v2.91, SLI Ready CrossFire Ready, Active PFC "Compatible with Core i7, i5" Power Supply

Pros: Ample power, plenty of connections, nice blue LED

Cons: first one failed after 11 months, RMA no hassle, second failed after 4 months, RMAing again,

Other Thoughts: loved the power supply while it worked.....

Did you find this review helpful? Yes No

  • Shane W.
  • 1/21/2015 12:20:46 PM
  • Tech Level: High
  • Ownership: 1 month to 1 year
  • Verified Owner

1 out of 5 eggsPower Surges?

This review is from: Rosewill Xtreme Series RX850-S-B 850W Continuous @40°C ,80 PLUS Certified, ATX12V v2.2 & EPS12V v2.91, SLI Ready CrossFire Ready, Active PFC "Compatible with Core i7, i5" Power Supply

Pros: Good wattage for the price?

Cons: When faced with a powerful graphics card, this PSU routinely deems graphics draw as a power surge and forces the system to shut down to "prevent damage".

Other Thoughts: I've disabled the surge protection in the BIOS so I'm 100% sure this PSU is the source of the issue. I would strongly recommend NOT buying this PSU if you are using a GTX970 or higher. The PSU may meet the minimum wattage, but it falls FAR short of supporting the build.

Manufacturer Response:

Dear Valued Customer,
Thank you very much for purchasing this unit.
We strive to provide the most reliable and highest quality products to our customers.

We are sorry to hear that, please contact our support team to assist you with troubleshoot and/or warranty options.

Phone: 1- 800-575-9885
Email: rma@rosewill.com
Email2: techsupport@rosewill.com

We look forward to hearing from you.

Thanks,
Rosewill Customer Care

Did you find this review helpful? Yes No

  • William C.
  • 1/14/2015 5:54:53 PM
  • Tech Level: High
  • Ownership: less than 1 day
  • Verified Owner

1 out of 5 eggsNo good Power Supply

This review is from: Rosewill Xtreme Series RX850-S-B 850W Continuous @40°C ,80 PLUS Certified, ATX12V v2.2 & EPS12V v2.91, SLI Ready CrossFire Ready, Active PFC "Compatible with Core i7, i5" Power Supply

Pros: None. First unit failed a month after I had it.

Cons: This unit is flawed. Purchased the first one, did not power on at all. Returned. Received this one. Wanted to upgrade my 600W power supply to this 850 Watt. Powered on computer it ran for 2hrs before failing. This thing SUCKS!

Did you find this review helpful? Yes No

  • Patrick T.
  • 12/23/2014 6:25:55 AM
  • Tech Level: High
  • Ownership: more than 1 year
  • Verified Owner

5 out of 5 eggs6.5 Years and still kicking

This review is from: Rosewill Xtreme Series RX850-S-B 850W Continuous @40°C ,80 PLUS Certified, ATX12V v2.2 & EPS12V v2.91, SLI Ready CrossFire Ready, Active PFC "Compatible with Core i7, i5" Power Supply

Pros: I have had no issues with this PSU. I bought it in July of 2008 and it has lasted through 2 machines. It handled everything that I have thrown at it. Had 3 8800GTS running SLI at one point, now running 2 GTX560s and bout to upgrade to a GTX 970.

Cons: NONE

Other Thoughts: I turn off my computer every night, maybe that's why it has lasted me that long? Give your computer time to rest!

Did you find this review helpful? Yes No

  • Marcin K.
  • 12/6/2014 5:07:03 PM
  • Tech Level: Somewhat High
  • Ownership: 1 week to 1 month
  • Verified Owner

1 out of 5 eggsfail to run any game

This review is from: Rosewill Xtreme Series RX850-S-B 850W Continuous @40°C ,80 PLUS Certified, ATX12V v2.2 & EPS12V v2.91, SLI Ready CrossFire Ready, Active PFC "Compatible with Core i7, i5" Power Supply

Pros: nice blue led light

Cons: newly built system (intel 5820k,gtx980, asus x99-a) shuts down when i start a game, any game. first i thought it was asus surge protector giving false positive but after turning that feature off same thing is happening. i should have chose other brand....

Manufacturer Response:

Dear Valued Customer,
Thank you very much for purchasing this unit.
We strive to provide the most reliable and highest quality products to our customers.

We are sorry to hear that, please contact our support team to assist you with troubleshoot and/or warranty options.

Phone: 1- 800-575-9885
Email: rma@rosewill.com
Email2: techsupport@rosewill.com

We look forward to hearing from you.

Thanks,
Rosewill Customer Care

Did you find this review helpful? Yes No

  • Garrett H.
  • 11/14/2014 10:52:48 AM
  • Tech Level: Somewhat High
  • Ownership: 1 month to 1 year
  • Verified Owner

4 out of 5 eggs

This review is from: Rosewill Xtreme Series RX850-S-B 850W Continuous @40°C ,80 PLUS Certified, ATX12V v2.2 & EPS12V v2.91, SLI Ready CrossFire Ready, Active PFC "Compatible with Core i7, i5" Power Supply

Pros: Very powerful for the price. Looks great. A ton of chords. Doesn't make alot of sound.

Cons: The plug in the back is extremely sensitive. If it is touched, the power supply will turn off.

Did you find this review helpful? Yes No

  • andrew j.
  • 11/12/2014 10:49:02 AM
  • Tech Level: Average
  • Ownership: more than 1 year
  • Verified Owner

2 out of 5 eggsGreat while it lasted.

This review is from: Rosewill Xtreme Series RX850-S-B 850W Continuous @40°C ,80 PLUS Certified, ATX12V v2.2 & EPS12V v2.91, SLI Ready CrossFire Ready, Active PFC "Compatible with Core i7, i5" Power Supply

Pros: Great power supply for the money has more than enough cables for just about any build. and 3 year warranty from rosewill is great

Cons: while the amount of cables is great in my mid-tower they took up a lot of space and were not all that flexible to move around. Also, after having installed for 15 months the power supply died; however, rosewill did have a 3 year warranty on it and was able to replace it, but shipping isn't cheap. the new one arrived and after running for about 2 hours in my build met the same fate. I didn't want to challenge my luck a third time so I am switching to a different one.

Other Thoughts: While it worked it was great, however, after the second failure in less than 2 weeks.

Manufacturer Response:

Dear Valued Customer,
Thank you very much for purchasing this unit.
We strive to provide the most reliable and highest quality products to our customers.

We are sorry to hear that, please contact our support team to assist you with troubleshoot and/or warranty options.

Phone: 1- 800-575-9885
Email: rma@rosewill.com
Email2: techsupport@rosewill.com

We look forward to hearing from you.

Thanks,
Rosewill Customer Care

Did you find this review helpful? Yes No

  • MAXIME L.
  • 11/5/2014 6:57:26 AM
  • Tech Level: High
  • Ownership: more than 1 year
  • Verified Owner

1 out of 5 eggsIt will break within few months

This review is from: Rosewill Xtreme Series RX850-S-B 850W Continuous @40°C ,80 PLUS Certified, ATX12V v2.2 & EPS12V v2.91, SLI Ready CrossFire Ready, Active PFC "Compatible with Core i7, i5" Power Supply

Pros: The PSU is very efficient and handles Heavy Gaming like a charm, while it lasts...

Cons: Owned the Power Supply for around 6 months and it worked fine until it started shutting down my computer as soon as I started playing a game or started a Graphic Performance test.

The computer will boot just fine, the temperature will be good, everything is fine, until you start using the graphic card. 850W should be MORE THAN ENOUGH to handle a single nVidia GTX 780 ti card, but it seams like it can't handle as much as it is supposed to.

Other Thoughts: If you're looking forward to buy a PSU for a single card, opt for a more efficient PSU, and you might as well throw a few extra bucks for a better quality product, it will payback on the long run.

Manufacturer Response:

Dear Valued Customer,
Thank you very much for purchasing this unit.
We strive to provide the most reliable and highest quality products to our customers.

Thanks for the feedback we will pass it along to our QA and Design teams. In the event that you are having troubles please do not hesitate to contact our support team at the number below.

Phone: 1- 800-575-9885
Email: rma@rosewill.com
Email2: techsupport@rosewill.com

We look forward to hearing from you.

Thanks,
Rosewill Customer Care

0 out of 1 people found this review helpful. Did you? Yes No

  • Alec S.
  • 10/28/2014 7:21:45 PM
  • Tech Level: Average
  • Ownership: 1 month to 1 year
  • Verified Owner

1 out of 5 eggsComputer restarts during games

This review is from: Rosewill Xtreme Series RX850-S-B 850W Continuous @40°C ,80 PLUS Certified, ATX12V v2.2 & EPS12V v2.91, SLI Ready CrossFire Ready, Active PFC "Compatible with Core i7, i5" Power Supply

Pros: Quiet, has a pretty blue light

Cons: I didn't notice any issues until I started playing Borderlands: The Pre-Sequel a month after buying this. During any intense activity in the game my computer has a chance of immediately shutting off and restarting. There is no blue screen, no temperature issue, and nothing is logged in the Windows event viewer at the time of these restarts. I haven't had the time to test other graphics-intensive games other than Borderlands 2, which produces the same result.

So, I set up an RMA, paid the return shipping for a heavy power supply, and waited to receive my replacement, only to have it do the exact same thing happen again. This convinces me that there's an intrinsic problem with this supply, and it appears many others have had this same issue.

Other Thoughts: I upgraded from a 350W supply to support my new graphics card, and there's absolutely no way the extra 500 watts are insufficient to power the card. I cannot at all recommend this power supply, especially for use in heavy gaming.

Manufacturer Response:

Dear Valued Customer,
Thank you very much for purchasing this unit.
We strive to provide the most reliable and highest quality products to our customers.

We are sorry to hear that, please contact our support team to assist you with troubleshoot and/or warranty options.

Phone: 1- 800-575-9885
Email: rma@rosewill.com
Email2: techsupport@rosewill.com

We look forward to hearing from you.

Thanks,
Rosewill Customer Care

0 out of 1 people found this review helpful. Did you? Yes No

  • Manuel V.
  • 10/27/2014 10:29:33 PM
  • Tech Level: Average
  • Ownership: 1 day to 1 week
  • Verified Owner

1 out of 5 eggsDisappointed =/

This review is from: Rosewill Xtreme Series RX850-S-B 850W Continuous @40°C ,80 PLUS Certified, ATX12V v2.2 & EPS12V v2.91, SLI Ready CrossFire Ready, Active PFC "Compatible with Core i7, i5" Power Supply

Pros: looks neat when its working.

Cons: When ever I try and run any game my comp powers off then restarts.

Other Thoughts: I wanted to upgrade my PC so I got this 850W to take over what my old 700W was doing perfectly and it cant. My airflow is good but this thing just doesnt like to work when run any games. If I stay on my desktop and dont do anything my comp doesnt restart.... First Rosewill purchase, I would like to give them a second chance with this but cable management with this 850 is troublesome. We will see. =(

Manufacturer Response:

Dear Valued Customer,
Thank you very much for purchasing this unit.
We strive to provide the most reliable and highest quality products to our customers.

We are sorry to hear that, please contact our support team to assist you with troubleshoot and/or warranty options.

Phone: 1- 800-575-9885
Email: rma@rosewill.com
Email2: techsupport@rosewill.com

We look forward to hearing from you.

Thanks,
Rosewill Customer Care

1 out of 1 people found this review helpful. Did you? Yes No

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Item#: N82E16817182072
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