Corsair TX850w ATX PSU

Internals & Cables

Internal Components

Removing the four screws and lifting the lid on the TX850, the first thing that hits you is just how spacious it is inside. Normally, most manufacturers cram components wall to wall, making the casing as small as possible. However, inside the TX there is a good 20mm gap between the PCB and casing on one side, and 5-10mm on the other. Everything inside the unit is tidy, with all cables entering the casing being tightly bunched together and decent space between each of the components allowing them to 'breath'.

Corsair TX 850w Inside Corsair TX 850w Inside

Three black aluminium heatsinks run in parallel across the unit, providing cooling for the attached mosfets. Positioned middle-right we can see the large primary transformer that deals with the +3.3v /+5v and +12v rails, and over to the left of it is yet another transformer, only much smaller, and responsible for dealing with the +5vsb (Standby) rail.
 
Corsair TX 850w Inside Corsair TX 850w AC Input
 
The primary capacitor inside the TX850 is a full-height version manufactured by well-regarded Japanese manufacturer Nippon Chemicon. This capacitor has a rating of 450v / 470uF and can do its business all the way up to 105c, indicating that it should stand the test of time inside a toasty PC system. Several other caps can also be seen around the unit, but without de-soldering them, these are much harder to identify. Interestingly, Corsair have also used a single solid polymer capacitor on the 12v side, which generally is a better choice than the standard electrolytic ones, but does seem a little out of place.

Corsair TX 850w Caps/Ferrite/Transformer Corsair TX 850w Capacitor
 
The 140mm fan is manufactured by a Taiwanese company that many of us - especially watercooling enthusiasts, will have heard of before: Yate Loon. Best known for their high performance 120mm fans with low noise levels, it's certainly no wonder that Corsair insisted on using them inside the TX850. This particular model carries the marking D14BH-12 and a quick check of Yate Loon's website shows that it can push 140CFM at 48.5dBA. Perfect if you intend to run it at lower speeds.
 
 Corsair TX 850w Fan Corsair TX 8502 Fan
 
Now that we've finished the tour of the TX850's innards, let's have a quick check at what cables Corsair has fitted it with before moving on to the Pièce de résistance - the load testing.


Cables & Connectors

A total of ten cables extend from the unit branching out into 8xSATA, 8xMolex, 4xPCI-E, 1xATX and 1xEPS connectors. Each and every cable on the unit is sleeved in a black mesh finished off with black heatshrink at the ends. Just like a lot of other units we're reviewed recently, Corsair have decided not to carry the sleeving all the way into the PSU, instead stopping just a couple of centimetres short. This doesn't exactly score points in the looks department, but it does enable each of the nine protruding cables to have a much greater bend radius, which could prove helpful if the PSU were to be installed in a confined space.

Corsair TX 850w Cables Corsair TX 850w Molex Connectors
 
Each of the four PCI-E cables is capable of being converted to either 6-Pin or 8-Pin standards. This ensures that the TX850 will work with all existing graphics card combinations along with (hopefully) whatever plug and pin combinations that GPU manufacturers enforce on us in the future. 

Similarly, both the 8-Pin EPS-12v and 24-Pin ATX connectors can also be converted back to 20-Pin ATX / 4-Pin P4-12v standards for compatibility with older motherboards if required.

Corsair TX 850w PCI-E Corsair TX 850w ATX + EPS

Next stop - our load testing configuration and the all important results.
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Most Recent Comments

18-02-2009, 04:25:34

JN
"Corsair's modular HX series have proven to be extremely popular with enthusiasts, but can it's hard-wired brother the TX win our hearts?"

http://www.overclock3d.net/gfx/artic...195206362s.jpg

Corsair TX850w ATX PSU

18-02-2009, 04:30:09

TonyG
Very nice, makes me want to buy one now.

18-02-2009, 04:32:16

JN
Quote:
Originally Posted by name='TonyG'
Very nice, makes me want to buy one now.
If they did it in modular format I'd be using one in my new build no question

18-02-2009, 04:32:53

TonyG
Totally agree with you Jim.

18-02-2009, 04:33:06

premiumgfx
Nice review. Just like you, I think it needs to come in a modular version too.

18-02-2009, 06:27:27

Sleekit
I was gonna get the 1100W version but I settled for the Silverstone NV1000, maybe in my next build

Great review mate!

18-02-2009, 07:09:02

monkey7
Woahh 87% efficiency all the way Very nice unit and review.

I have buitl a rig with the TX750w in it and I can tell it isn't that hard to manage the cables, which were similar in amount. You just need to make sure you have a case with good cable management options (I had the CM centurion 590, not really great) and you have a lot of duct tape / tie wraps lying around. Oh and reserve an hour or two

18-02-2009, 07:25:01

JN
Quote:
Originally Posted by name='monkey7'
Woahh 87% efficiency all the way Very nice unit and review.
Yeah I certainly had a few eye rubbing moments while testing it. They should be slapping 80PLUS Silver Certification on it tbh. Only a couple of units i've ever seen can manage that.

18-02-2009, 08:36:56

kataras
no mention of "the box smells lovely so much that i might just wear it instead of perfume"

18-02-2009, 08:45:26

Kerotan
Quote:
Originally Posted by name='kataras'
no mention of "the box smells lovely so much that i might just wear it instead of perfume"
Haha was about to say, could of slotted in a cheeky line:

"Upon opening the box I was greeted by the usual intoxicating Corsair PSU smell, and decided to take a break from reviewing for a few minutes to relax."

18-02-2009, 08:46:18

onewingedangel
Corsair may well be the most consistent PSU manufacturer these days, so a good result is hardly surprising but nice to see.

18-02-2009, 08:57:28

JN
Quote:
Originally Posted by name='Kerotan'
Haha was about to say, could of slotted in a cheeky line:

"Upon opening the box I was greeted by the usual intoxicating Corsair PSU smell, and decided to take a break from reviewing for a few minutes to relax."
HAHA I thought my post had gone unnoticed

Come to think about it...maybe I should re-test it with a gas mask on. That seductive smell, it's beautiful dark skin...oohohoo *tingles down spine*

*AHEM*

18-02-2009, 09:55:27

Robert
i got this one at home.

an awsome product, and you are all so right about the smell, its lovely

18-02-2009, 09:58:22

JN
Quote:
Originally Posted by name='Robert'
i got this one at home.

an awsome product, and you are all so right about the smell, its lovely
Yay i'm not totally weird

18-02-2009, 09:59:17

monkey7
Rethinking about this... I'd love to bash a corsair PSU and see you eating your pants ^^

I guess everyone who's ever unpacked a corsair agrees on the smell

18-02-2009, 10:01:55

JN
Quote:
Originally Posted by name='monkey7'
Rethinking about this... I'd love to bash a corsair PSU and see you eating your pants ^^
Something for the OC3D Live Video stream maybe?

18-02-2009, 10:02:39

monkey7
We'd certainly get a lot of viewers at that moment

18-02-2009, 12:57:59

Bungral
Ha ha Kataras, your sig is wicked... So true.

19-02-2009, 05:29:26

PV5150
Wow what an excellent performer, and I do agree on the need for a modular version
Reply
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