Corsair HX1000 Power Supply

Corsair has been taunting and teasing us for months now with the prospect of their very first foray into the 1kW jungle. And now, our waiting is over. Join me as I pit the HX1000 in a battle to the death against my hot box of doom and a SunMoon ATE.

PRODUCT: Corsair HX1000
PROD LINK: Corsair’s current offerings.
PRICE: $225 @
Price is at time of testing!

The other day, the UPS lady drove her van into my basement. And then, I took another look and realized that it wasn’t a van after all. Rather, it was the massive box for a Corsair HX1000 power supply; the latest and greatest to come out of Corsair HQ. I’d been waiting for my chance to play with this monster, and the time had finally come.

I would like you all to welcome my new camera, henceforth to be known as “Mr. Fuji,” to the fold. Mr. Fuji comes to me upon the dramatic failure of my old camera to behave itself in my last review. And let me tell you, the moment the new guy showed up my old camera threw a temper tantrum to wake the dead. It’s still going at it as I type this.

Let’s get on with the fun, shall we?

Corsair HX1000

First, Mr. Fuji would like you to take a look at the van… er, box on my table. Sorry, it’s so big I keep forgetting it’s not really a van. My arms aren’t forgetting the strain from heaving this thing up onto the table though, not by a long shot.

The front of the above box contains several marketing points in no less than three languages as to why one should buy the Corsair HX1000. These include the benefits of flat modular cables, the ultra quietness of the 140mm thermally controlled fan, true dual 12V design, best in class efficiency, and my favorite – reliable and clean power at 50 degrees Celsius. You may recall that my new and improved hot box has a problem with stopping at a mere 50 degrees. It thinks that some of these units should be tested a mite higher than that, unless I stop it from doing so. Shall I go for broke, dear readers?

My readers have spoken. Or maybe it’s just the voices. The hot box is running wild on the HX1000.

Corsair HX1000

The top of the box has some cool marketing points too, and Mr. Fuji was kind enough to take a picture for you to read them over. I won’t reprint them all here, I’m way too lazy for that, but there are a couple worth noting. First, we get another assertion about the unit being able to deliver full power at 50 degrees. Second, we see something far more unusual – 105 degree rated solid state, or polymer, capacitors. Now, I already know the design this unit is based on, and I also know it uses polymers on the 3.3V and 5V rails. Did Corsair do something totally different and put more than the usual polymer compliment in here? We’ll find that out on page 3.

And before I forget, I would like to point out that this unit is currently the lowest powered unit to get certification from Nvidia for three way SLI.

Corsair HX1000

The back of the box includes yet more marketing goodness, some large pictures, a load capacity chart, a fan curve chart, certification logos, and a picture of the HX1000, fan side up, with a bunch of modular cables attached. Oh look, polymer caps. Doesn’t look too much different so far than the design I know so well.

Corsair HX1000

Hmm… it would seem Mr. Fuji has a bit of a learning curve. I think I need to fiddle with the white balance some more when the desk lamp is on. This is the top of the box (or bottom depending on which way you look at it), on which we get several pictures of different connectors on the unit.

Corsair HX1000

Yeah, I definitely need to change the white balance. Opening the box, our first glimpse of the contents reveals a thick owner’s manual that made yours truly wonder if the whole story of the company right down to individual bios was detailed inside as well. A quick look inside proved that no, it was in fact stuffed with brief operating instructions in about a billion languages. And I do believe Klingon was in there somewhere. And by Klingon, I mean (insert favorite Canadian/Newfie/French/Paris Hilton/Clinton-Obama-McCain joke here).

Corsair HX1000

Upon lifting out some foam thick enough to serve as a gym mat, we see the PSU itself. That bag you see to the right contains all the modular cables, and… hang on a second. Is that my old camera trying to sneak into the shot? Let me just fix the white balance here and unpack the box.

Corsair HX1000

Ok, that’s it. Hey you! Get out of the shot! You’ve been replaced, so you don’t need to be here. You’re making Mr. Fuji very upset. I don’t think that’s a good idea, do you?

Sorry about that. The contents of the box include one power supply, one owner’s manual, one bag full o’ modular cables, one 16 AWG power cord, and a little bag with black thumbscrews for case mounting, zip ties, and case badges.

Dang. Now my old camera’s in the corner crying. Maybe I was a little harsh.

Corsair HX1000

The side of the HX1000 is so tastefully done, I had Mr. Fuji grab a shot for you. The other side is identical.

Corsair HX1000

Now that’s helpful, a full diagram on what connector is on what 12V rail. What rails are the hardwired cables on you ask? Well, the ATX and 8 pin EPS connectors are on 12V1, while the two 6+2 pin PCI-e connectors are on 12V2. All modular connectors are your basic Molex Mini-Fit Juniors, just like many of the connectors on the other ends of these cables.

Corsair HX1000

Corsair HX1000 – DC Output
DC Output +12V1 +5V +12V2 +3.3V -12V +5VSB
40A 30A 40A 30A 0.8A 3.5A
Max Combined Watts 500W 500W 9.6W 17.5W

A label and a table for y’all. Some of you may notice that the rail distribution is just a bit unusual. This is due to the design of this unit, which I’ll get into in a bit more detail on page 3. Combined 12V power seems to be 80A, or 960W. Uh-oh… the SM-268 can’t go that high, at least not on the 12V alone. Well, I’ll just run it as far up the flagpole as I can, then, and make up the difference on the other rails.

Corsair HX1000

That does it, you little brat of a camera, you are henceforth banned from the office! Don’t give me that look. I will set Mr. Fuji on you, so help me.

Sorry. Right after I unpacked the bag of modular cables and picked up the new camera, the old one must have dashed in there to spoil the shot. It won’t happen again, I promise. I hear people calling for me to stop the camera stuff and tell them what those blue connectors are, and to them I answer that the blue connectors correspond to the blue 8 pin connectors on the HX1000 itself. That way it’s easy to tell what goes where. And now to arrange them all in abstract form on my photography table for you to admire.

Corsair HX1000

I call it, “A Study of Cabling on a White Bedsheet.” I know, I know, I shouldn’t quit my day job.

One item of note is that the SATA cables for this unit are labeled as “HX1000 only” on the PSU connector end. Another point of interest is that the cables for the PCI-e connectors have ferrite beads on them. These are supposedly to filter out EMI, but the electronics tech in me would like to point out that a good many times such things are about as effective at filtering EMI as turning around in a circle five times wearing a funny hat while reciting random Dr. Seuss passages. That is to say, they are unnecessary for normal operation.

I shall proceed on this review,
With a cable table… perhaps two.
But no, I think I shall concede,
That one is really all I need.

Corsair HX1000 – Cabling
Type of connector:
ATX connector (580mm) 20+4 pin
2 x 2 12V connectors (630mm) 1*
2 x 4 PCI-e (630mm) 2**
8-pin Xeon/EPS connector (630mm) 1*

Modular Cables

8-pin Xeon/EPS connector (600mm) 1
2 x 3 PCI-e (600mm) 2
2 X 4 PCI-e (600mm) 2
5.25″ Drive (450mm + 100mm + 100mm + 100mm) 12
3.5″ Drive Connectors (+100mm) 2
SATA Connectors (450mm + 105mm + 105mm + 105mm) 12
*EPS connector is 4 pin + 4 pin modular
**configured as 6+2 pin modular PCI-e connectors