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This review is from: OCZ StealthXStream OCZ600SXS 600W ATX12V / EPS12V SLI Ready Active PFC Power Supply
Pros: Good, clean power output. I've been running an e6750 w/ 9800 gtx xxx on it for over a year and never had a problem. What's even better is that it can support my new system, although at its limits. See Other Thoughts for my specs. There are very few power supplies out there that can deliver this kind of power and call themselves 600w PSU's.
Cons: There are three flaws. One: Lots of noise at full load. This thing is loader than all 6 120mm fans + 1 200mm in my case. It's not a wailer or anything, and it's not unbearable, I would just like it to be a little quieter for the performance. Two: Not many Molex connectors. This is an issue in my Antec 900, since I have to connect all my fans to molex, resulting in some nice long chains. This will be a major issue if you are running lots of spread out components using the 4-pin Molex connectors. And Three: the thing that most people don't mention is the supposed ratings on the 12V lines. If you read the reviews, you know that this unit puts out more than 600w. Even given that, though, the 18A ratings on all 4 12V lines are impossible. Using basic physics, if all 4 had 18A, the 12V rails alone would be over 800w. Given the 580w rating on the label, I work out that each rail would have approximately 12A, or only 3 rails have equivalently 18A. In any case, it still supports a ton.
Other Thoughts: Like I said, this thing can bring it. Although I haven't tested it up to full power yet since I'm overseas from my computer at the moment, I believe this unit can power this setup, which most people reserve for 1000+W PSU's.
q9550 E0 @ 3.4GHz w/ CoolerMaster Gemini II push/pull
MSI P7N Diamond 780i
9800 gtx xxx/9800 gtx+ SLI
4 gb OCZ plat. rev. II PC2-6400.
2x WD Caviar 400gb
Antec 900 w/ 4x 120mm + 1x 200mm (2 more 120 on CPU cooler)
2x DL DVD
Like I said, a lot to be powered by a 600w psu, but this thing is capable. It'll probably die sooner, though, but hey, it's not a $250 1000W supply.
Also note that there is the Mod and Stealth 700W versions, which only increase the amperage on the -12V line. Obviously the 4x+12V put out more power than they say.
Pros: -Excellent capabilities
-Low Cost/High Cost Effectiveness
-Relatively low power consumption in comparison to newer cards
-By itself runs Crysis on High settings w/ ~30fps, COD4 maxed out
-2 Way SLI will double performance on games utilizing the technology
-1 6-pin connector on this model instead of two, making it easier to get an SLI capable PSU
-Capable of running SLI on 650W PSU with sufficient amperage
Cons: Major problems with running SLI with older 9800 gtx models. I have an XFX 9800 gtx xxx running in SLI with this card, and I went through hell to get it to work. Note that the only working configuration is to have the new card on the top slot with the older one below and the SLI bridge on the connector closest to the monitor connectors. All other configurations result in reading the new card as an 8800 gt, hence not capable of SLI with the older card. If you have this problem, it will work, but it takes some fiddling. Note that this was done with an MSI P7N Diamond, which is a 780i based board.
Also, XFX support can be a little frustrating sometimes, but I didn't have the slow experience that a lot of other people have been having. If you're going to SLI this card, I would recommend the EV*A version, since there are less issues. However, the price to performance ratio of this card is superior to the one mentioned above.
Other Thoughts: If I were to do this again, I would get 2x gtx 260 c216 for superior cost to performance ratio. They can perform almost as well as a gtx295 for $200 less, although you may run into some microstuttering and consume more power.
I am currently overseas, so I have not been able to test my rig out completely. However, it seems that I am able to run this in SLI with a OCZ StealthXstreme 600W PSU. I wouldn't recommend it for anyone else, it's just that I had it in my case already and don't feel like shelling out another $200 for a better PSU. Note the setup:
q9550 E0 @ 3.4GHz w/ CoolerMaster Gemini 2 push/pull
XFX 9800 gtx xxx/9800 gtx+ SLI
4 gb OCZ Plat. Rev. II PC2-6400
MSI P7N Diamond 780i
600w OCZ StealthXstreme PSU
Antec 900 v1
2x WD 400gb
2x LG 22x DL DVD