Ultra X-Finity 600W

I'm back with another Ultra power supply.  As if 500W wasn't enough, today I'm reviewing the 600W.  What's another 100W?  Well this power supply is leaps and bounds different than it's 500W cousin.

The X-Finity 600W is actually two 300W power supplies placed on top of each other.

Loads of power AND good looks.

You can see how the side windows react to UV light.

The X-Finity 600W doesn't feature modular cables.  In fact, Ultra claims that there just isn't enough room inside for the modular interface. 

The X-Finity does feature two blue LED fans and a window on each side.  The windows expose this power supply's soul:  Two 300W power supplies stacked on top of one another.  One power supply supplies only 12V and -12V.  The other power supply supplies the 3.3V, 5V and -5V.  The two are linked with a couple modular cables just prior to the harness that finds it's way out of the back of the housing.

The finish is a titanium finish similar to that of Ultra's other power supplies.  It's very shiny and requires a good polishing after you fondle it.

Under the hood:

With the top down, we can see a PCB labeled "WIN-400."  I'm not sure if this means the two power supplies are actually underclocked Wintech 400W power supplies or if they just used Wintech 400W power supply circuit boards. 

The heat sinks are very interesting.  Because of the tight spaces, the heat sinks are actually thick aluminum plates that zigzag through any available open space between the two power supply units.  It's funny really.  When you look on one side, you see a heatsink down low to the left, then another up high to the right.  And then on the other side, another down low to the right....  It's probably the first time I've ever seen anything like it.

Note the two connectors with the ten wires.  This is what connects the top power supply to the bottom.  There's 4 12V leads, 1 -12V, 1 5V SB and 4 grounds.

Here's the money shot.  Two identical power supplies stacked on top of each other.
But instead of splitting the load of all of the rails, each power supply supplies power to different rails.
I wonder how this power supply handles a big load on any one given rail.  Hmm....

Lacking some practical features:

When you get to review a bunch of power supplies, you get spoiled by the little things.  This power supply has two SATA cables, and comes with a 20 to 24-pin adapter, but no PCI Express connectors (although this power supplies high 12V would make it PERFECT for an SLI rig,) no fan only connectors and no added EMI shielding like Raid Max's power cable capacitors or Enermax's iron ferrite ring core.  The 10 score just slipped from Ultra's grasp.

Taking a look at the label:

Max Output Current
Max Combined Wattage

You can see that the power is distributed very evenly.  Also notice how Ultra rated the 12V rail separate from the 3.3V and 5V.

ATX connector 20-pin*
2 x 2 12V connectors 1
2 x 3 PCIe 0
6-pin Xeon/AUX connector 1
5.25" Drive connectors 8
3.5" Drive connectors 2
SATA Drive power connectors 2
Fan only connectors (thermostatically controlled 12V only) 0
* A 20 to 24-pin adapter is included with this power supply

What's my opinion about what the outcome will be?

There's not much I can say here.  Given the means used to get this power supply to put out 600W, I'm certain this power supply will pass all of the tests with stable rails.  The only thing that's left to question is how high will this fly?

Ultra X-Finity 600W
Zero Load
Test One (365W)
Test Two (292W)
Test Three (480W)
Full Load (623W)
Power Factor

Temperature under load = 29.4C. Temperature after power off =54.8C.

Analysis of Results:

WOW!  That's all I can say.  I mean, if you look at the price tag for this beast and then look at how this baby performed, it's hard to say anything less than "WOW!"

All rails stayed within tolerance at all time, including during the zero load and full load tests.  At 623W, we were well above spec.  I actually got the power supply up to 631W before the overload protection kicked in.

The 12V Rail Revisited:

The load tests were adequate enough to prove this power supply to be a good unit, but it's time to have some fun.

If the rails are actually completely independent because they're run on seperate power supplies, then I should be able to full load up the 12V without putting any load on the 5V or 3.3V and not see a drop in the 12V voltage, correct?  Let's see what happens.

Ultra X-Finity 600W
12V @ 30A
5V @ 0A
3.3V @ 0A

Woohoo!  I hereby challenge any power supply to duplicate that!  355W/373W on the 12V rail ALONE and the rail is still in spec.  I actually had the power supply up higher, but given that the 12V rail is only rated for 28A, it didn't really surprise me that the power supply tripped under an hour.

Helloooooo in there! A shot of the power supply through it's UV window.  Note my reflection in the shiny titanium finish.

In conclusion...

For features, I give this power supply an 8.5.  It doesn't have active PFC, and the cables can use some help (candidate for sleeving anyone?) but the nice blue glow was cool and there's no shame in Ultra wanting to put windows in the housing to show off the guts of this bad boy.  It's killer price comes into play with this score as well.

For performance, I give this power supply a 9.5.  The concept of stacking two quality, switching power supplies on top of each other is obviously a smart way to build a quality power supply.  Why didn't I give it a 10?  I guess you'll just have to check out the specs of the PC Power and Cooling Turbo-Cool 510!

It's average overall score is a 9.

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