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post #21 of 34
Quote:
Originally Posted by Point Blank Rob;13500893 
Thank you for the advice, when you say better peforming i tend not to find performance an issue with my thermaltake thoughpower xt 775w and they both would be classed as better performing than that i assume?
I'm just slightly confused as to which support crossfire and which dont.
All PSU's with the proper number of power cables (either PCIe 6pin or 8ppin) support Crossfire or SLi.

As for better performance, it comes down to voltage regulation and ripple suppression.

Your current PSU, and the Silverston, as well as the OCZ; all perform very well in those regards. Though some still perform better than others.
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post #22 of 34
Quote:
Originally Posted by Point Blank Rob View Post
Can anyone recommend the silverstone strider plus 850w? Im currently comparing it to the ocz zx 850w, they seem to be 2 of the quietest.
the seasonic x 760 is like £150!
Don't know what the price is in the UK, but the Seasonic X-650 can easily run your rig plus another HD6870. Not sure why you are looking for such high wattage power supplies.
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post #23 of 34
Thread Starter 
I guess the reason I'm looking for high wattage power supplies is because I have no idea what wattage I require so I'm just being safe I also thought I would require one this large for when I got a second hd6870.
Seasonic x-660 is still £130 where as I can get the silverstone strider plus 750w for £95, does any one know how much more silent the x-660 is, cause I can't seem to find a DbA graph for it.
    
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post #24 of 34
Thread Starter 
basically now tyring to decide between the scythe chouriki 2 750w and the silverstone strider plus 750w. The scythe claims only 20dBA under full load, how is that even possible?
The rest of my fans run at 16dBA so I guess the result would be super silent gaming rig?
Anyone actually owned either of these 2?
Thanks
    
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post #25 of 34
Quote:
Originally Posted by Point Blank Rob View Post
basically now tyring to decide between the scythe chouriki 2 750w and the silverstone strider plus 750w. The scythe claims only 20dBA under full load, how is that even possible?
The rest of my fans run at 16dBA so I guess the result would be super silent gaming rig?
Anyone actually owned either of these 2?
Thanks
The Scythe unit is a solid one.

I've not seen any testing of the fan, but it says it only spins up to 1250 RPM max, being an FDB bearing, and 135mm; 20dB(A) does seem plausible.

I saw one test on the unit, and in a 30.6dB(A) room, with the PSU going at full load, it increased to 37.2dB(A) in the room. Which leads me to believe that the fan went faster than it said it was supposed to.

On the other hand, this was a very ameatur test, so they could have just been doing something wrong, or not counting in another factor.

They also stated they were measuring closer than most fan testing is done at. Fan SPL testing is done at a distance of 1m most of the time, but they were testing at 50cm.
So that could explain it as well.

The 750w unit isn't a bad one, but it's nothing fantastic either. The Silverstone is probably a better buy in this case.
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post #26 of 34
You should consider the AX750 or AX850 models by Corsair, they are Seasonic models and are the quietest you can get without going fanless. I had a Strider 1000w before, which was noisy and which I replaced with my AX850. I also recommend a fan controller, so you can get the noise levels all the way down to just the level you want it.
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post #27 of 34
Quote:
Originally Posted by catcherintherye View Post
You should consider the AX750 or AX850 models by Corsair, they are Seasonic models and are the quietest you can get without going fanless. I had a Strider 1000w before, which was noisy and which I replaced with my AX850. I also recommend a fan controller, so you can get the noise levels all the way down to just the level you want it.
That's not true, there are quieter PSU's on the market that are not fanless.
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post #28 of 34
Quote:
Originally Posted by Tator Tot View Post
That's not true, there are quieter PSU's on the market that are not fanless.
lol ok. Yea there may be but it's the quietest/best performing I've encountered in that watt range. And IMO quieter than the ones he's currently considering.
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post #29 of 34
Quote:
Originally Posted by Point Blank Rob View Post
I guess the reason I'm looking for high wattage power supplies is because I have no idea what wattage I require so I'm just being safe I also thought I would require one this large for when I got a second hd6870.
Seasonic x-660 is still £130 where as I can get the silverstone strider plus 750w for £95, does any one know how much more silent the x-660 is, cause I can't seem to find a DbA graph for it.
i got the seasonic x 660w and i love it and its silent.

http://www.seasonicusa.com/NEW_X-ser...60-760-850.htm
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post #30 of 34
Thread Starter 
bobfig, have you tried stopping everything else that makes noise in your case and then just listening to the psu, cause thats how silent i would like it to be, literally all my other fans run at 16dBA. Thanks
    
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