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Corsair Memory  Corsair Memory News Room

CORSAIR CMPSU-850TX 850W ATX12V 2.2 / EPS12V 2.91 SLI Ready CrossFire Ready Active PFC Power Supply - Retail

Voted Best Power Supply Manufacturer by Custom PC 2008(limit 5 per customer)  what's this?

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OverviewCustomer ReviewSpecificationsProduct Tour
If you're looking for a power supply to feed your hungry system, look no further. The new TX850W PSU from Corsair puts out an impressive 850 watts of power and supports the latest ATX12V v2.2 standards as well as EPS12V 2.91 standards. The unit is 80 Plus certified and has a 99% Active Power Factor Correction to ensure maximum efficiency.

The cables are extra long to work in the largest tower. They are fully sleeved for easy routing and bundling. There are four 8-pin PCIe power connectors so you can build up a CrossFire or SLI system using today’s high end video cards. There are also 8 SATA and 8 Molex connectors so you can connect multiple drives and peripherals.

Keeping it all cool is a temperature-controlled 140mm fan. Air is vented through the hexagon mesh back panel. The universal input accepts voltages from 90-264 so you no longer have to worry if the switch was in the right position.

Review Summary (read more reviews, write a review)

5
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83%
4
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8%
3
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3%
2
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2%
1
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4%
Product Rating:
Total Reviews: 454

*BEAST*

white Reviewed By: Techmaster05 on 2/5/2009
Rating + 5
Tech Level Tech Level: high - Ownership: less than 1 day
This user purchased this item from Newegg
Pros: Very good PSU for the money. The 12v rail and ampere is amazing for this PSU. Quiet, cables are nice and long. Tears through everything, of course not 3-way sli with 280's lol but you get the point. ummmmm.... its CORSAIR
Cons: LOADS OF CABLES lol. Its not a bad thing for me, i got the Antec twelve hundred and the cable management is amazing, a lot better than most cases but if you have a mid tower case with no cable management options, i suggest you try a modular PSU because you may have a lot of trouble with all these wires.
Other Thoughts: The people that take off 1 egg just because this PSU is not modular need to stop. Of course its not modular, look at the pictures, if you want modular so badly, go out and buy a modular PSU than, dont take off 1 egg just because something thats good is not modular, its very stupid and ignorant.
86 out of 92 people found this review helpful. Did you? Yes No

High quality power supply

white Reviewed By: on 3/13/2009
Rating + 5
Tech Level Tech Level: high - Ownership: 1 month to 1 year
This user purchased this item from Newegg
Pros: High quality power supply from the crinkle black finish to the tasteful yellow graphics. Corsair is the Mercedes of power supplies. It's quiet and has more then enough power for all but the most powerful systems.
Cons: Not truly a con but there are just too many wires. If you have a small case be aware that cable management will be difficult.
Other Thoughts: For the price the best power supply you can buy. This is my second Corsair unit and both have functioned perfectly. And Corsair has instituted a new web based rebate system that is effortless and quick.
42 out of 42 people found this review helpful. Did you? Yes No

Quick Specs (view all30)

ModelCMPSU-850TX
TypeATX12V / EPS12V
Maximum Power801 - 900W
Fans1
PFCActive

Review Summary (read all 454 Reviews, write a review)

5
newegg
83%
4
newegg
8%
3
newegg
3%
2
newegg
2%
1
newegg
4%
Product Rating:
Total Reviews: 454

Lots of power

white Reviewed By: Stinky Joe on 12/12/2009
Rating + 5
Tech Level Tech Level: average - Ownership: 1 week to 1 month
This user purchased this item from Newegg
Pros: Loads of connections and the cables are plenty long.
Huge 70 amp 12v rail
It feels bulletproof and it's solid.
850 watts at a good price
Cons: It didn't install itself!
Other Thoughts: So what if it doesn't have modular cables. Ty rap them and tuck them out of the way. For the price, I'm willing to spend the time on cable management.

What can you say? It's a power supply and does what it is supposed to. Makes me feel better about what makes it tick when someone pays attention to things that will never be seen after it is installed. Looks like Corsair paid attention to every little detail, right down to the black screws and flawless black finish.

i7 860
Gigabyte GA-P55-UD3R
4 gig GSkill Ripjaws F3-12800CL7D DDR3 1600
Corsair 850TX power supply
BFG 9800gtx+ OC 1 gig
2 Hitachi 7K160 in RAID 0
Did you find this review helpful? Yes No

Corsair PS one of the best

white Reviewed By: GamesRigBuilder on 12/12/2009
Rating + 5
Tech Level Tech Level: high - Ownership: 1 day to 1 week
This user purchased this item from Newegg
Pros: I build PC as a passtime and just don't like to use unsuitable components, your Games PC is going to be as good as your weakest component in your Rig, so the Power Supply is no exceptions, do me a favor and buy yourself just the best, the Corsair PS 850W is one of the best in the industry and it shows, quality and reliability just what a power supply should be.
Cons: The wiring can become unwildy but using plastic ties, you can manage, my rig has a section specially built for extra wires so I use it, other than that this is a class 1 power supply, my hat and thank you Corsair for selling quality products, I am sure you will be selling a lot of them and thanks for standing behind your 5-year warranty which is unusual.
Other Thoughts: I bought PS from different vendors with mixed results but the Corsair is now the only brand I buy, I have a Server using the 750W modular Corsair PS and it is a beauty, never failed in fact I swapped it to my Games Rig when my, shall we say nameless (don't want to batter the vendor more than they need to but I know the ratings for him is not that great anyway) bad PS blew up, not once but twice, now that is a record for unreliable components. So I wasted my time switching the PS back and forth and this is not what you wanna do, it takes about 2 hours to rewire my rig so I do not have time to waste, thank you to Corsair now this is over, I can do better things with my free time.
Did you find this review helpful? Yes No

white Reviewed By: Greg on 12/11/2009
Rating + 5
Tech Level Tech Level: somewhat high - Ownership: 1 day to 1 week
This user purchased this item from Newegg
Pros: The cables are good and long. Its quiet. Happy with it so far.
Cons: Non.
Did you find this review helpful? Yes No
Model
Brand CORSAIR
Model CMPSU-850TX
Spec
Type ATX12V 2.2 / EPS12V 2.91
Maximum Power 850W
Fans 140mm Thermally Controlled
PFC Active
Main Connector 20+4Pin
+12V Rails Single
PCI-Express Connector 4 x 6+2-Pin
SATA Power Connector 8
SLI Ready
CrossFire Ready
Modular No
Efficiency > 80%
Over Voltage Protection Yes
Overload Protection Yes
Input Voltage 100 - 240 V
Input Frequency Range 50/60 Hz
Input Current 12A
Output +3.3V@30A, +5V30A, +12V@70A, -12V@0.8A, +5VSB@3A
MTBF >100,000 Hours
Dimensions 5.9"(W) x 3.4"(H) x 5.9"(L)
Features
Connectors 1 x Main connector (20+4Pin)
1 x 4-Pin/8-Pin EPS Connector
4 x PCI-E
2 x Floppy
8 x Peripheral
8 x SATA Power
Features Guaranteed to deliver rated specifications at 50°C

80%+ energy efficiency at 20%, 50% and 100% load condition for less heat generation and lower energy bill.

Active Power Factor Correction (PFC) with PF value of 0.99.

Dedicated single +12V rail offers maximum compatibility with latest components.

Supports the latest ATX12V v2.2 and EPS12V 2.91 standards and is backwards compatible with ATX12V 2.01 systems.

High quality Japanese capacitors provide uncompromised performance and reliability.

Powerful +5Vsb rail with 3A rating.

Guaranteed compatible with dual-GPU configuration.

Auto switching circuitry provide universal AC input 90~264V.

Over Current/Voltage/Power Protection, Under Voltage Protection, and Short Circuit Protection provide maximum safety for your critical system components

Introduction

If you're looking for a power supply to feed your hungry system, look no further. The new TX850W PSU from Corsair puts out an impressive 850 watts of power and supports the latest ATX12V v2.2 standards as well as EPS12V 2.91 standards. The unit is 80 Plus certified and has a 99% Active Power Factor Correction to ensure maximum efficiency.

The cables are extra long to work in the largest tower. They are fully sleeved for easy routing and bundling. There are four 8-pin PCIe power connectors so you can build up a CrossFire or SLI system using today’s high end video cards. There are also 8 SATA and 8 Molex connectors so you can connect multiple drives and peripherals.

Keeping it all cool is a temperature-controlled 140mm fan. Air is vented through the hexagon mesh back panel. The universal input accepts voltages from 90-264 so you no longer have to worry if the switch was in the right position.

Highlights

newegg ATX12V and EPS12V Compatible
Compatible with the ATX12V v2.2 and EPS12V v2.91 standards, the Corsair CMPSU-850TX provides maximum power stability to drive the latest Intel and AMD processors as well as other components for desktop and server computer systems.
newegg 850W Maximum Power
The Corsair CMPSU-850TX provides a maximum power of 850W for a safe, reliable output for high-end computer systems.
newegg 80 PLUSCertified
The 80 PLUS certified power supply provides high power efficiency of at least 80% 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.
newegg Four PCI-E Connectors
With four 6+2-pin PCI-E connectors, the Corsair CMPSU-850TX is ideal for building up a SLI or CrossFire gaming system.
newegg 140mm Silent Cooling Fan
The Corsair CMPSU-850TX features a 140mm thermally controlled fan for increased overall airflow and heat dissipation in the power supply enclosure.

Quick Specs

BrandCORSAIR
+12V RailsSingle
CrossFireReady
Efficiency> 80%
Maximum Power801 - 900W
PCI-Express Connector4 x 6+2-Pin
PFCActive
TypeATX12V / EPS12V
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