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OCZ EliteXStream 800W Power Supply Review
by Michael "SKYMTL" Hoenig     |     May 23, 2008

Performance Tests



System Used:

Processor: Intel Core 2 Quad Q6600 @ 3.5Ghz (B3)
Processor #2: Intel Core 2 Duo E8400 @ 3.6Ghz
Memory: 4GB Corsair Dominator DDR3 @ 1600Mhz (Thanks to Corsair)
Motherboard: Asus Blitz Extreme
Motherboard#2: DFI LANParty X38 Dark
Graphics Cards: 2X Gigabyte HD2900XT 512MB
Graphics Card #3: ASUS 9800GX2 TOP
Disk Drive: Pioneer DVD Writer
Hard Drive: Seagate Barracuda 320GB SATAII
Hard Drive #2 Hitachi Deskstar 500GB SATAII
Fans: 5X Yate Loon 120mm @ 1200RPM
Monitor: Samsung 305T

For our complete power supply testing methodology, please go here: Hardware Canucks Power Supply Testing Methodology


Efficiency Testing


Efficiency seems to be a strong point of the EliteXStream 800W where in some cases it betters the results we saw with the HX1000W while falling behind in others. This was surprising since when we tested the Silverstone DA850 (which is based on the same platform as this unit) we found that its efficiency was a bit below expectations. It seems like Impervio has improved their design in order to shore up efficiency a bit.

One thing that was a bit disturbing was the fact that the EliteXStream consumed nearly twice as much power as the other two power supplies tested here when the computer was turned off. Yes, a computer consumes power when it is turned off and the only way to stop this “leakage” is to manually switch off the power supply. 20W is quite a bit of a surprise since when we last saw this Impervio platform it performed quite well in this test.


Voltage Regulation Testing

+3.3V Regulation



+5V Regulation



+12V Regulation


The EliteXStream does extremely well in the voltage regulation tests and proved to be completely solid through even the most strenuous test we put it through. The largest drop on the +12V rail was a mere 0.07V from idle which is really something OCZ can be proud of while the +5V and +3.3V rails performed equally well. The only discrepancy we saw was a sudden drop in the +5V rail in the System Stress test which was a bit odd considering we weren’t loading many components which use +5V power.
 
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