Good PSU For watercooling, future GPUs?

paradoxeternal

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So I've been looking into getting a new PSU. My TX 650 has served me well for two and a half years, but I can definitely do better.

My reasons being: so I can clean up the clutter of wires this non-modular unit leaves at the bottom of my case, so that I don't start getting too close to base PSU requirements for GPUs (I plan to upgrade my GPU next year and some GTX 780s w/aftermarket coolers already require 600w), and because I think some time between the end of this summer and the end of next summer I am going to switch to real water cooling (with something like this kit).

With that in mind, I was thinking a small bump up in wattage would serve me fine, so I was thinking either this Corsair HX 750 or the HX 850.

I've heard that water cooling requires over 1000w PSUs. Is this true? I feel like it wouldn't be. But I plan to add a GPU block to the kit I've linked to prior.

Thanks for your help.
 
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Who told you that? Water-cooling does not take any more power than an air-cooled computer. The only (small amount of) power that you need is for the pump, and that shouldn't make a difference. There are fans and other things, but it is not true at all that one would need 1000W. I would simply get a PSU with a good buffer. If your system is going to be 600-650W, get the HX750. If 650-700, I would probably stick with the HX850 just to be safe. :)
Getting blocks does not increase your need for wattage! :)

dannyboy2233

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Who told you that? Water-cooling does not take any more power than an air-cooled computer. The only (small amount of) power that you need is for the pump, and that shouldn't make a difference. There are fans and other things, but it is not true at all that one would need 1000W. I would simply get a PSU with a good buffer. If your system is going to be 600-650W, get the HX750. If 650-700, I would probably stick with the HX850 just to be safe. :)
Getting blocks does not increase your need for wattage! :)
 
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robnof

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Whenever I'm in doubt, I just use a powersupply calculator http://www.extreme.outervision.com/psucalculatorlite.jsp

It's not entirely accurate, but it does give you a point of reference to work with. As for water cooling, it does require a bit more power than air cooling for the pump, but I'm pretty sure it's not that much (someone please correct me if I'm mistaken).
 

dannyboy2233

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So yeah, pretty much what I said. :)
And no, you aren't mistaken.
 

paradoxeternal

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Thanks for all the answers. The PSU wattage calculator site isn't working for me, but I think I saw some formulas to calculate how much wattage I'd be using with overclocked CPUs and GPUs. I'm going to go find those but I feel like the 850 will be more than enough to last me through a couple future builds. The only thing I'm unsure of is if I'll be upgrading the CPU/motherboard, since haswell wasn't much of a bump from ivybridge, and next year will just be a die shrink.
 

dannyboy2233

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If you're pressed for money, get the IB. If not, the extra $50 or so for Haswell can't hurt.
Don't forget to choose a B.A.; it makes the forums happy :)
 

paradoxeternal

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Oh, didn't even realize i hadn't selected a BA. And I have an ivy-bridge now actually, I was more talking about upgrading that next year or the year after.

 

dannyboy2233

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Haha no worries; it's just one of those things I automatically type towards the end of a thread :p
And there have been speculations that the next Intel processor will use a completely different socket, so I wouldn't completely count on upgradability. However, go with whatever you feel is right in terms of price. :)