Ultra X3 600W Power Supply
Author: Rutledge Feman
Editor: Shawn Knight
Date: 09-03-2007
Provided by: Ultra Products
Discuss: View Comments
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Testing and Conclusions

MSI 975X Platinum PUE (BIOS 7.4)
intel E6600 Core2 Duo 2.40GHZ 4MB
....@ 3.30 GHZ (1.32V) : CoolIT Eliminator
ATi Radeon X1900XTX 512MB 650/775
....@ 700/825 : Arctic Cooling Accelero S1
Corsair 2x1GB DDR2-667 4-4-4-12
....@ DDR2-735 (1.95V)
Creative SoundBlaster X-Fi XtremeMusic : Logitech X-530
WD 74GB Raptor (10K)
WD 250GB Caviar (7.2K)
Ultra X3 600W
NEC 16x/16x DVDR/W
NZXT. Apollo Orange Chassis
Logisys 2x1 UV Purple CCFL
Logitech G15 Keyboard, G7 Mouse, QuickCam WebCam

All voltages were recorded with a Craftsman Digital Multimeter (82015) with full batteries. Voltages were recorded on all peripherals and then averaged for the shown result. An idle situation entails a blank WindowsXP Professional desktop screen. Load scenarios included the following: full processor load with two instances of Folding@Home, one on each core; defragmenting the primary harddrive; copying music on the secondary harddrive; playing an audio CD through the DVD drive; all fans and coolers at high; and video card load via the ATi Tool 3D visualization. Combined, this should but a nice, thorough load on the PSU.


As you can see, the X3 is completely stubborn and the rails hardly budge, even under such heavy load. These numbers are impressive to say the least and show that Ultra didn't lose sight of performance when thinking of other appealing features.

Usage and Conclusions

Using the X3 has been a real pleasure. The thing is pin-drop silent even under full load, and although the fan doesn't seem to put out much through the rear of the case, the air isn't too warm anyway. The only bad thing I can find to say is that some cables could be a little longer; the SATA cables were just a little too short to be routed behind the harddrive cage and this might not work out well for users with bottom-mount PSUs or full tower cases. Otherwise, though, I have no complaints about this power supply. It works well, it sounds good, and, at $129.99 at a popular online reseller, I'd say it's a bargain.

All in all, OCIA.net can do nothing but award the Ultra X3 600W PSU with our seal of approval!



+ Great performance
+ Flex-force sleeved cables
+ Fully modular
+ Great cooling
+ Dead silent
+ Varied cable-length

- Some cables could be a little longer


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