OCZ EliteXStream 800W and 1000W
by Christoph Katzer on April 7, 2008 5:00 AM EST- Posted in
- Cases/Cooling/PSUs
Conclusion
OCZ's new EliteXStream series brings very high quality to the market, and the choice of components was well done. The appearance is nothing special, since black PSUs are everywhere and 120mm fans are common. However, a PSU doesn't need to look special to be good. Both power supplies show they can perform well, and that's much more important than a fancy paint job that few will ever notice.
As we mentioned, the cable length and number of connectors is very good. With a minimum length of 65cm, the main cables will work with most large cases and still have sufficient length to be able to tuck them out of the way for better airflow. The number of connectors is good, though we're still torn about the need for eight Molex jacks; a third SATA harness might be preferable, with modern optical drives now switching to SATA. Still, there's no denying the greater versatility of Molex connectors - they can work with fans, lighting, some motherboards, and if necessary a converter is always an option for more SATA connectors.
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On the efficiency side, we were surprised with the good performance. The 1000W EliteXStream reaches 86.84% efficiency and the 800W version 86.21%. Both results are excellent, and we measured more than 80% efficiency throughout the normal operating levels.
The noise levels are also good even at higher loads, generally staying below 30dB(A). It's only under harsher (i.e. warmer) conditions that the fan will start spinning faster, where noise then reaches more than 30dB(A). There was no other audible noise produced by the power supply except the already described fan. Even after a very long period of operation with loads of 500W (or lower), users should not notice any noise from this power supply.
The MSRP for the EliteXStream will be about $180 for the smaller and $230 for the larger version. Street prices may be lower or higher, but as these PSUs are not yet on the available we will have to wait and see. If OCZ can hit the MSRP, we expect many users will be very interested in purchasing EliteXStream PSUs. Looking at the 730W-1000W units we've reviewed lately, most prices are quite a bit higher than the price OCZ quoted to us. If this is what we have to look forward to from the OCZ/PCP&C merger, and if they can hit the price targets, OCZ will begin to exert an even greater influence on the market.
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TechnoButt - Thursday, January 1, 2009 - link
I, too, bought this in May/08. Had to RMA within 2 months. Waited the 2 weeks or so to get it replaced (out another $20 for return shipping, of course). Got system built up with it again sometime in August, and here it's dead again. How can they possibly claim such high MTBF when they obviously didn't start testing these units so long ago (they're too new!).What's the point of a 5 year warranty if you have to return ship every 2-3 months to keep your product going?
Don't get me started on my other issues with OCZ from 2008 (Fata1ity memory kits and aggressive SPD programming that don't boot in dell boxes, Vista upgrade memory kits failing, the embarrassment of building corporate demos on the Core SSD drives only to have them corrupt data in front of a customer within 2 weeks of building, having my Vendetta2 hsf suddenly stop cooling my cpu properly (after about 6 weeks of great cooling.. no adjustments.. apparently a thin wall in the center heatpipe/pinprick leak), etc etc etc.
I'm starting to wonder if ocz even has a quality control department anymore, of if they just build for reviews and 'stand behind it' with a long warranty (way behind it.. I mean).
If you haven't already been suckered into buying this PSU by the great reviews here and elsewhere, you'd be better served by finding an older PCP&C unit from before the buyout days. My biggest fear is that PCP&C will succumb to the poor quality culture of their new masters.
StraightPipe - Saturday, December 20, 2008 - link
I took this recommendation and I've had terrible luck.The first PSU ran great, for 2 months. RMA took 2 weeks, and their Customer service would not even acknowledge my request for an advanced replacement.
Second PSU arrives. I'm told it's new, not a refurb. It runs for 5 days and dies. Same thing every time, red light in the back. The forums have a stickie recommending you unplug everything and short the PSU with a paperclip. That doesnt help either.
Now I'm about to buy another PSU while I wait for the OCZ RMA process...
TWO THUMBS DOWN
nubie - Monday, April 7, 2008 - link
I like it, the power output is re-freaking-diculous, you could run a pair of overclocked Dual-Core SLi systems from either of these!!The thing that most interests me is that huge area at the top of the curve in the efficiency charts, if only they will release a 400-600w model that would put that flat spot right where the majority of systems run, IE 150-300 watts.
Another thing of interest to me that I have been noticing lately in your (excellent) reviews, is that 230v is much more efficient. Since I live in the US, would it make sense to have a 230v outlet for my PC? The trade-off in terms of efficiency looks like it would be worth it.
Another thought is that these extreme power supplies that can theoretically draw more than a common 120v circuit breaker can deliver may be better off on their own 230v line. So if you are building or remodeling your house, or just running another power line to your PC, should you consider 220v? (obviously you should use a brightly colored cord for the 220v, and the proper receptacle for the wall outlet.)
vajm1234 - Monday, April 7, 2008 - link
do we really need that much power i have 1 corsair 620 and its enough i think....nubie - Monday, April 7, 2008 - link
Not me, I am still wondering whether this PCPower Silencer 470 is too much(26A on the 12v) for my single card overclocked 7900/Celeron 430 (650mhz, 3.17Ghz P5N-E SLi), but I realized that I might as well have it for when I choose to run more, or put a fan on my HR-05 chipset cooler and run for 4Ghz (It has booted stable at 3.6+, but then heat caused lockups after I got in the OS).See this testimonial http://www.clubit.com/product_detail.cfm?itemno=A6...">http://www.clubit.com/product_detail.cfm?itemno=A6... :
"I have an overclocked quad core, two overclocked 8800's, 3 HDDs, 8 big fans, and an X-Fi card and it's been totally stable."
The user above me is right though, with a Lian-Li v2000 and 12 HDD, overclocked Tri/Quad SLi setup, and/or a 12v refrigerant (phase change) compressor you would be glad for one of these PSU's.
Sunrise089 - Monday, April 7, 2008 - link
600 watt is great for most of us sure...but a few people do have SLI or Tri-SLI setups (or Crossfire) AND overclocked quad-cores. For those folks...I suppose 650w or so might be cutting it too close?petalsofpain - Monday, April 7, 2008 - link
Even though I am more of a biology person... I have been taught that the reason for the voltage being higher in the case of powerlines into orders of magnitude above that of what he have in household appliances has to do with the general fact that the higher the voltage the lower the conduction losses and also 'the less leakage'!So if it really is that way it stands to reason that would we be able to keep the voltages higher that we would be able to have less in the way of losses. You could try the idea out pretty easily but I think that you know the theory behind this... as I have forgotten XD! Fun stuff though. Have a comparison with some server ones that have an efficiency rating maxim of 93% for comparison or even direct explanations. I don!t remember the name of the model or whatever just know that it was here that I read about this model...
Excellent article as usual as Anandtech stands and remains one of the few and amongst the best hardware and software or even general tech sites period!
Let it be known... I AM AN ANANDTECH FANBOY! :)
... something to have those annoying vidia and amd and intel fanboyz be afraid of in the near future ...
homerdog - Monday, April 7, 2008 - link
The second graph on page 8 shows the 800W PSU to be more efficient with 90VAC than with 120VAC. Are the colors mixed up or is this really the case?Christoph Katzer - Monday, April 7, 2008 - link
Damn, yes right. I will fix it, thanks.piroroadkill - Tuesday, April 8, 2008 - link
Also, there's no colour legend on the PFC graph, for the record