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CORSAIR Professional Series Gold AX850 (CMPSU-850AX) 850W ATX12V v2.31 / EPS12V v2.92 80 PLUS GOLD Certified Full Modular Active PFC Power Supply

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ATX12V v2.31 / EPS12V v2.92
Full Modular
80 PLUS GOLD Certified
90 - 264 V

The Corsair Professional Series GOLD AX850 modular power supply is 80 Plus Gold certified to deliver at least 90% efficiency at 50% load, cutting down your electricity bill and reducing heat generation. Flat, low-profile modular cables allow for easy cable routing and increased airflow.

Ideal for performance enthusiasts for whom consistent delivery of rated power output is essential, the GOLD AX850 delivers 850W of stable, continuous rated power at ambient temperatures of up to 50° C. High quality Japanese capacitors provide uncompromised reliability and long lifespan. Hybrid Silent Fan Control regulates the ultra-quiet 120mm double ball bearing fan. Fully compatible with the ATX12V v2.31 and EPS12V 2.92 standards, the GOLD AX850 also builds in over-voltage, over-current, under-voltage and short circuit protections for maximum safety to your critical system components.

ATX12V and EPS12V Compatible Supporting the latest ATX12V v2.31 and EPS12V v2.92 standards and backward compatible with ATX12V v2.2 and ATX12V v2.01 systems, the Corsair Professional Series GOLD AX850 provides maximum power stability to drive the processors as well as other components for desktop and server computer systems.
80 PLUS Gold Certified The 80 PLUS Gold certified power supply provides high power efficiency of at least 87% at any load between 20% and 100%, saving your money on your electrical bill, reducing heat in your computer's system and prolonging its life.
850W Continuous Power with Single Strong +12V Rail The Corsair Professional Series GOLD AX850 delivers 850W reliable, continuous output for high-end computer systems. A strong +12V single rail ensures the maximum provision of 12V power to energy-hungry components such as CPU and VGA card, minimizing the likelihood of overload shut down.
Flat Modular Cable Design The fully modular cable design allows only use of the cables you need to improve internal airflow and reduce clutter. Additionally, low-profile, flat cable design reduces air friction and helps maximize airflow through your computer's chassis.
Ultra-quiet 120mm Dual Ball-bearing Fan An ultra-quiet 120mm San Ace fan from Sanyo Denki delivers excellent airflow at an exceptionally low noise level by varying fan speed in response to temperature.
SLI & CrossFire Ready With 4 x 6+2-pin PCI-E connectors, the Corsair Professional Series GOLD AX850 is ideal for building flexible SLI or CrossFireX gaming system.

Learn more about the Corsair Gold AX850 (CMPSU-850AX)

Model

Brand: CORSAIR

Model: Gold AX850 (CMPSU-850AX)

Series: Professional Series

Spec

Type: ATX12V v2.31 / EPS12V v2.92

Maximum Power: 850W

Fans: 1 x 120mm double ball-bearing fan

PFC: Active

Main Connector: 20+4Pin

+12V Rails: Single

PCI-Express Connector: 4 x 6+2-Pin

SATA Power Connector: 12

Modular: Full Modular

Efficiency: >90%

Energy-Efficient: 80 PLUS GOLD Certified

Over Voltage Protection: Yes

Input Voltage: 90 - 264 V

Output: +3.3V@25A, +5V@25A, +12V1@70A, -12V@0.5A, +5VSB@3A

MTBF: >100,000 Hours

Approvals: UL, CUL, CE, CB, FCC Class B, TUV, CCC, -tick.

Dimensions: 5.9" x 3.4" x 6.3"

Features

Connectors: 1 x Main connector (20+4Pin)
2 x 4+4-Pin ATX/EPS 12V
8 x Peripheral
12 x SATA
2 x Floppy
4 x PCI-E

Features: Supports the latest ATX12V v2.31 and EPS 2.92 standards and is backward compatible with ATX12V 2.2 and ATX12V 2.01 systems
An ultra-quiet 120mm double ball-bearing fan delivers excellent airflow at an exceptionally low noise level by varying fan speed in response to temperature
80 Plus Gold certified to deliver at least 90% efficiency at 50% load
Active Power Factor Correction (PFC) with PF value of 0.99
Universal AC input from 90~264V: No more hassle of flipping that tiny red switch to select the voltage input!
A dedicated single +12V rail offers maximum compatibility with the latest components
Over-voltage and over-current protection, under-voltage protection, and short circuit protection provide maximum safety to your critical system components
High-quality Japanese capacitors provide uncompromised performance and reliability
Completely modular cable system allows you to use only the cables you need: Power supply upgrade and replacement is easy, as the cables only need to be disconnected at the power supply
Low-profile, flat cable design reduces air friction and helps maximize airflow through your computer's chassis
A seven year warranty and lifetime access to Corsair's legendary technical support and customer service

Manufacturer Warranty

Parts: 7 years limited

Labor: 7 years limited

Quick Info

Warranty

Limited Warranty period (parts): 7 years
Limited Warranty period (labor): 7 years

Manufacturer Contact Info

Customer Reviews of the Corsair Gold AX850 (CMPSU-850AX)

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Filter Results Last 2 Weeks (3) Last 6 Months (46) All Reviews (279) 72% (200) 12% (33) 3% (8) 3% (8) 11% (30) Verified Owners Video Reviews Mfr. Responses keyword Go page SubmitTopPaginationForm of 28 previousTopPaginationForm\| nextTopPaginationForm
J. 6/15/2013 2:22:10 AM Tech Level: 4/5 Ownership: 2/5 Verified Owner	Rating: 5/5 Pros: Full Modular 80 Plus Gold Cables long enough to hide in my midtower and still reach needed components. Same colored wires, makes for a clean look Cons: Snug fit in NZXT Phantom 410. Nothing too bad, but it was a bit of a pain aligning the screws. Cables a bit stiff, but I plan to re-sleeve them eventually. Other Thoughts: Upgraded from a Rosewill Hive 650w (Which was a great PSU I will add). I just needed the extra juice and the all black cables and full modular on the Corsair was a nice touch. Did you find this review helpful? Thanks for the valuable feedback you provided!
bjames105 6/14/2013 6:37:32 PM Tech Level: 4/5 Ownership: 2/5 Verified Owner	Rating: 5/5Blown Away Pros: To start with what I like, Newegg did a good job at packaging as always, and Corsair did a great one as well, much better than the previous power supply I owned, a Raidmax. The packaging print was very nice looking, and slid off to a brown box, which had the power supply inside of Styrofoam material for even more protection. That was really nice in itself. The power supply was in a nice cloth bag that I could use for anything! I was very pleased with the bag in the packaging. Cables were neatly tucked in the space by the styrofoam, also in a bag. This was my first fully modular power supply, so I was a noob plugging the cables in, but I figured it out after a bit. I did better cable management this time as far as allowing more space in my case. But anyways, when my system runs (now at around a 40% load, this psu runs it completely silent. I am very satisfied with my purchase of this power supply. Corsair has my brand loyalty now. They have a great line of products, and this fully modular power supply doesn't fall short of awesome. Cons: None Did you find this review helpful? Thanks for the valuable feedback you provided!
N/A 6/13/2013 9:06:15 AM Tech Level: 4/5 Ownership: 1/5 Verified Owner	Rating: 2/5Worried...DOA Pros: - Full Modular is nice Cons: - DOA Other Thoughts: Started the RMA process on this PSU but I'm concerned due to the amount of negative "This stopped working" type of reviews..If my first one was DOA is my second one going to live for a month and die? Worried worried... Did you find this review helpful? Thanks for the valuable feedback you provided!
Mark M 6/2/2013 3:49:00 PM Tech Level: 4/5 Ownership: 4/5 Verified Owner	Rating: 5/5Powerful Pros: Very powerful and can handle a lot of stress Cons: None Did you find this review helpful? Thanks for the valuable feedback you provided!
gl0ry 5/29/2013 10:26:05 AM Tech Level: 5/5 Ownership: 2/5 Verified Owner	Rating: 1/5DOA Pros: Looks nice, I even bought the white modular cable kit, Cons: Didn't power on properly. Would turn on for a split second then turn right off. I have jumped the PSU outside of the case with only a fan connected and it did the same thing verifying that it is dead. Other Thoughts: NewEgg won't even give me an RMA because I shipped the UPC code off for the rebate. Now I have to deal with Corsair. Hope their customer service is proper. 1 out of 1 people found this review helpful. Did you? Thanks for the valuable feedback you provided!
E 5/27/2013 7:27:22 AM Tech Level: 5/5 Ownership: 4/5 Verified Owner	Rating: 4/5Nearly Perfect Pros: Before I got the product, my previous PC went through 3 different power supplies before finally getting fried by one. I decided to invest in high quality products so I knew just who to go to. Corsair. And boy did they make a great product here. When I got the package, it was PERFECT. When opening I noticed how much care Corsair put into protecting their product. For a $199 (Before the price drop) item, I would hope for some protection and I couldn't be happier. The extra cables even come with their own case. The full modular design allows my Thermaltake Chaser to have little to no wires showing (other than the motherboard cable of course). All of the cables are black except for the motherboard cable, which has a black sleeve, so it blends in well. The fan on the supply itself only comes on as you need it. A lot of times for me it rarely even spins. So the noise level is zero. The system I'm running has a AMD FX-8350, a WD Velociraptor HDD, and a GTX 650 Ti, so it can at times draw a decent amount of power. Cons: I took a egg off for the cables. The connections on the hard-drive connections are pretty stiff. The problem that brings is when you want to hide the cables BEHIND the motherboard. But with this unit being Full-Modular, you won't have to worry about to many unused cables. Other Thoughts: If your running a powerful system with multiple drives or with multiple video cards, This is a MUST HAVE. Can't beat the price for the quality. Did you find this review helpful? Thanks for the valuable feedback you provided!
Scyro 5/23/2013 6:53:56 PM Tech Level: 4/5 Ownership: 2/5 Verified Owner	Rating: 3/5Coil whine noise Pros: Generally nice quality... Cons: Unless you get a model that has coil whine noise, something that can randomly afflict these units. Something of this calibur and price, coming from Corsair, shouldn't have this issue. Other Thoughts: Newegg was great and is cross shipping a unit. Otherwise, so far, it works great. Just need ear plugs at the moment. 2 out of 3 people found this review helpful. Did you? Thanks for the valuable feedback you provided!
Alcain 5/20/2013 1:35:31 PM Tech Level: 5/5 Ownership: 3/5 Verified Owner	Rating: 5/5Fantastic PSU Pros: -Very quiet fan -Sleek looks -Fully Modular -Nice, braided cables -80 Plus Gold Cons: None Other Thoughts: Overall a very high quality PSU, you really get what you pay for with this one 1 out of 2 people found this review helpful. Did you? Thanks for the valuable feedback you provided!
N/A 5/14/2013 9:38:50 PM Tech Level: 3/5 Ownership: 3/5 Verified Owner	Rating: 1/5Not Impressed Pros: 80 plus gold, fully modular. Worked great when it worked. Cons: Died tonight just short of 1 months use. No idea what caused it. Running a 3770k, ASRock Extreme6 Z77, 2 650Ti boost in SLI, Corsair H60, 16GB GSkill Trident, ADATA 256GB SSD, DVD burner and 4 200mm case fans. Manufacturer Response: Dear Corsair Customer, We are sorry to hear that you are having this issue with your AX850. I would recommend that you please contact our Tech Support team using the following link and they would be happy to help troubleshoot further or replace the unit for you through an RMA if need be. http://corsair.force.com/ They can also be reached by phone using the toll free number listed on our contact page: http://www.corsair.com/us/company/contact/ Thank you, Corsair Customer Support 1 out of 2 people found this review helpful. Did you? Thanks for the valuable feedback you provided!
N/A 5/14/2013 9:20:31 AM Tech Level: 5/5 Ownership: 3/5 Verified Owner	Rating: 5/5Great modular PSU Pros: Well made, Corsair is a name you can trust. It's the standard size and can fit in pretty much any case. Cons: None 1 out of 1 people found this review helpful. Did you? Thanks for the valuable feedback you provided!
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