Ultra Products X3 1000W Power Supply

SUPPLIED BY: Ultra Products
PRODUCT: Ultra X3 1000W
PROD LINK: Not Available
PRICE: < $300.00
Price is at time of testing!

OK, enough with the pictures. Let’s take a look at exactly what this bad boy is capable of.

Ultra X3 1000W – Hot Load Tests
Test # +3.3V +5V +12V Watts Efficiency PF Intake Exhaust
Progressive Load Tests
1 5A 5A 8A 155W 77.5% .98 26°C 27°C
3.32V 5.01V 12.22V
2 8A 8A 20A 325W 82% .99 27°C 28°C
3.29V 4.97V 12.15V
3 10A 12A 38A 566W 81% .99 27°C 30°C
3.25V 4.91V 12.05V
14 11A 14A 50A 721W 80% .99 29°C 31°C
3.23V 4.89V 11.99V
5 14A 17A 70A 978W 79% .99 30°C 34°C
3.19V 4.83V 11.89V

What we see here is that the X3 puts out a lot of amperage. The voltage regulation is a bit lacking but considering the huge loads put upon this bruiser I’m not surprised that the rails droop a bit. It’s still all well within spec so it’s nothing to panic about and what you’re not seeing is the stability of the rails. Some power supplies will load up and as the load increases the voltages will begin to fluctuate by a few hundredths of a volt. It won’t fluctuate fast enough to show up as ripple but it’s fast enough to show up as bouncing numbers on the display. With the X3 I didn’t experience that. It would drop to the voltage at that load and sit there. No bounce, no jiggle and as you’ll see soon the ripple was very good under load. First though let’s see what the hot tests bring to light.

Ultra X3 1000W – Hot Load Tests
Test # +3.3V +5V +12V Watts Efficiency PF Intake Exhaust
Progressive Load Tests
1 5A 5A 8A 155W 76% .98 31°C 37°C
3.32V 5.01V 12.21V
2 8A 8A 20A 324W 81% .99 33°C 40°C
3.28V 4.97V 12.14V
3 10A 12A 38A 565W 81% .99 35°C 46°C
3.24V 4.91V 12.04V
4 11A 14A 50A 717W 80% .99 40°C 55°C
3.22V 4.87V 11.98V
5 14A 17A 70A 971W 77% .99 47°C 70°C
3.17V 4.80V 11.84V

At first the de-rating is nil but by test four it raises to 4W and by test five it’s up to a full 8W. 8W!! That’s at 47°C intake temp and a full 70°C exhaust temp. It’s insanity I tell you! What this shows us is that the X3 belies it’s server origins. It’s not fazed by high temperatures owing to the fact that the OEM (Andyson for those of you wondering when I’d bring it up) built this baby on a server PSU base. It’s designed to be rode hard and put away wet. OK, not wet but you get the idea, servers are usually consigned to small rooms stuffed with several very hot running computers and given minimal cooling. A server PSU has to be stable, reliable and not give up the ghost when the going gets ugly.

EDITOR’S NOTE: I feel I need to clarify the “hot box” results here because of some of the comments I’ve seen about the PSU’s exhaust getting as hot as 70°C during the 971W load. Although a 70°C exhaust air temp would mean that the housing of the PSU would also be hotter and would in turn heat up the inside of the case, you have to realize that the inside of the case is already hot because we’re pumping the exhaust of the load tester back into the case. 47°C is the intake temperature because that is the temperature inside the case. There is a 23°C delta here, but when the power supply was sucking in 30°C ambient air, the delta was only 4°C. More about the hot box can be found here.

Let’s take a look at the ripple shall we?

Ultra X3 1000W – Oscilloscope
Test # +3.3V +5V +12V

Looking at the ripple we see that the X3 isn’t terribly comfortable with low loads on the 5V rail. The ripple looks high but it’s not really as bad as it looks owing to the fact that the load isn’t indicative of a real PC’s load. The ripple on the 5V rail is a bit out of spec at 60mV on test one but it diminishes quickly as the loads are increased and by test four (14A or 70W load) it’s down to a very mild 25mV. The rest of the rails look great under all loads and stay well within spec at all times.