Ultra X-Finity 500W

No modular cables, fan-only cables, lights, windows, EMI filters... Wedged between two fantastic values in the Ultra product line
(the X-Finity 300W and X-Finity 600W) and cousin to the modular X-Connect, this power supply needs to really perform in order to justify it's existence.
It does, without a doubt, have a beautiful mirror finish.

We're going to take a look at Ultra's other 500W effort.  No modular cables, no UV windows, no UV lights.  Just a shiny finish, similar to the X-Connect's and a really high rated 12V rail.

The X-Finity isn't built by Youngyear like the X-Connect.  Upon close inspection of the PCB and components and then running the UL number, we can tell that this power supply is built by Wintech.

Here's the Ultra X-Connect (left) sitting next to a X-Finity (right.)
The component values and layout are nearly identical, but because of the different Chinese manufacturers behind each unit, the colors of the components are different (different manufacturers used)
and the heat sinks are of a slightly different design, albeit approximately the same shape and size. Note the power switch and AC input are reversed.

Despite similar placement and size of some of the components between the X-Finity and X-Connect, the values are still a little off between the two power supplies. This is probably why the end result is a power supply that can allow for "only" 28A (the X-finity) versus 34A (the X-Connect) on the 12V rail, 32A versus 28A on the 5V, 20A versus 28A on the 3.3V rail, etc. (you'll get to see all of the specs in a little bit.)

The heatsinks in the X-Finity, although different in design than the X-Connect, are still smaller than most.  Once again, the power supply seemed to run a little warm and the fans spun up. I may be wrong, and I'm sure the heatsinks are adequate for this power supply, but I think the fans wouldn't need to spin as fast if the heat sinks were a little bit larger.

Here's the inside of the Ultra X-Finity 500W.

Another shot under the hood of the X-Finity

Let's take a look at the label:

Max Output Current
Max Combined Wattage

You'll note that the 3.3V is lower, the 5V slightly higher and the 12V slightly lower on the X-Finity than it is on the X-Connect. It's still plenty of power to go around in a world of 20A 12V rails! Note the -5 is a little higher than the X-Connect, but it's still lower than a lot of PSU's.

And now a look at what cables we get with the X-Finity:

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

Although the X-Finity is EPS12V ready and comes SATA ready, there's no accommodation for PCIe video cards. An adapter is required.

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

Although a 500W power supply and bearing the same "Ultra" brand name as the X-Connect, I don't think we'll see the exact same results.  The 5V is higher, and the 12V is lower, but still they both show strong numbers.

This power supply lacks a lot of the luster some of the other power supplies I've tested have shown.  With only a shiny finish to save it's "feature score," this power supply better perform if it's going to get a decent grade!

Let's take a look at the test results:

As usual, red means the power supply is out of spec.

Ultra X-Connect 500W Zero Load Test One (375W) Test Two (305W) Test Three (492W) Full Load (550W)
12V 12.08 12.22 12.65 12.70 12.30
5V 5.28 5.09 4.99 4.96 4.99
3.3V 3.38 3.40 3.43 3.50 3.49
Efficiency 36% 77% 76% 72% 72%
Power Factor .55 .70 .68 .70 .69

Temperature under load = 42C. Temperature after power off =52.1C.

Analysis of Results:

What's up with that 12V rail?  Not once did it dip below 12V.  Unfortunately, whenever it was loaded up significantly, it actually shot up above the 5% allowed tolerance!  Very strange.

I do have to point out that the power supply refused to die.  I had it up to 550W and it just kept putting along without issue.

The temperatures during test three were a bit high at 42C.  I thought for sure that once I shut down this thing would shoot up to about 70 or 80C.  Much to my surprise, it actually only went up to 52.1 before it started to drop back down.

Conclusion and score:

With pretty much just a shiny finish, I'll have to give this power supply a 6 for features and appearance.

For performance, I give this power supply an 8.  It performed WAY over spec, but the 12V should not have whacked out on me on test two and three.

It's average overall score is a 7.

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