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When using this resource, please read FragKrag's opening post. The Tech Support forum regulars have helped create countless of desktop systems without any compensation. The least you can do is provide all of the information required for them to help you properly. |
Not sure about the RAM, but you may as well just get RAM without the dumb tall heatspreaders anyway, to eliminate that possibility.
If you're sure about SLI GTX 580, try 750W if you're not overclocking the GPUs, 850W if you are, more only if you're going for benching records with insane OCs.
With that kind of insane price and dumb expenses, I'm not going to mention the good budget PSUs but rather more suitable high-end units.
Look for Super Flower Golden Green, XFX XXX Edition, Corsair HX, Seasonic X (Corsair AX). Antec High Current Pro, Enermax Platimax, Super Flower Golden King, etc. are probably not priced reasonably. There's plenty of other good stuff too, but probably not worth mentioning. The Golden Green or XXX are probably the best values of the high-end stuff.
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Thank you for your assistance.
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Those are conservative estimates by the way. For example, if you already had a higher-end 650W unit and only planned to run games (no harsh power-maxing benchmarks), that would be okay.
If you can find Corsair HX750/850 for a reasonable price, like no more than 10 pounds over a XFX XXX Edition (they're comparable in quality), that may be worth it for Corsair support and the 7 year warranty.
Corsair AX / Seasonic X are not any better than the XXX and HX btw, just a little more efficient and fully modular, and a bit quieter.
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I have nothing to add to the build from my current computer (you don't even want to see what it's running) however XFX XXX 850w seems to be the best bet with a £20ish price gap between it and the HX850 but I think the 5 year warranty of the XFX will be more than enough so I'll go with that and replace the ram just incase. Thanks again!
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On October 15 2011 04:37 skyR wrote:
What newer parts? You mean the failure that is Bulldozer?
I was more thinking the g800 series/g620 + 6990 and 570s, etc.
PSUs too
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United States166 Posts
Hmmm, so as previously stated id like to add http://www.xoxide.com/red-cold-cathode.html but should i be able to say run 2 tubes which are +-3.7w with my 450w.
p67 pro 3
nvidia 560ti
core i5-2500k
8gb of ram
not sure what else you need that draws much power.
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On October 15 2011 09:41 Dannnnn_The_Man wrote:Hmmm, so as previously stated id like to add http://www.xoxide.com/red-cold-cathode.html but should i be able to say run 2 tubes which are +-3.7w with my 450w. p67 pro 3 nvidia 560ti core i5-2500k 8gb of ram not sure what else you need that draws much power.
As long as it's a good 450w, yes. 2 12" shouldn't quite run 1amp. If you're that close to pushing your PSU past rated spec, frankly, you deserve what you get.
They only turn into trouble when there's a good number of them, or strobing ones, running off a bigger inverter.
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United States166 Posts
what exactly happens when you push it past say 450w? I honestly have no clue how much my system is drawing so i don't even know how close i am to going over.
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On October 15 2011 09:48 Dannnnn_The_Man wrote:
what exactly happens when you push it past say 450w? I honestly have no clue how much my system is drawing so i don't even know how close i am to going over.
Wattage is a terrible measurement that way, because it implies all sorts of dumb shit, like not mattering which rail you're pulling current off of. Anyway, there's no right answer. Some PSUs are badly overrated. Some have model numbers that look like ratings twice their safe capacity. And some will giggle hysterically when you push them over.
Basically, depends on the PSU. And your PC shouldn't be anywhere near maxing out the +12v rail on a decent 450w PSU, which is where cold cathodes pull from.
Like i said, if a kit that pulls <1amp with a 1-2 amp inverter is enough to kill your PSU, it should be dead anyway.
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United States166 Posts
I see, and im just wondering, whats the point in not having say a 750 watt psu just to be safe with all builds? Is it just power consumption?
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United States166 Posts
On October 15 2011 09:51 JingleHell wrote:Show nested quote +On October 15 2011 09:48 Dannnnn_The_Man wrote:
what exactly happens when you push it past say 450w? I honestly have no clue how much my system is drawing so i don't even know how close i am to going over. Wattage is a terrible measurement that way, because it implies all sorts of dumb shit, like not mattering which rail you're pulling current off of. Anyway, there's no right answer. Some PSUs are badly overrated. Some have model numbers that look like ratings twice their safe capacity. And some will giggle hysterically when you push them over. Basically, depends on the PSU. And your PC shouldn't be anywhere near maxing out the +12v rail on a decent 450w PSU, which is where cold cathodes pull from. Like i said, if a kit that pulls <1amp with a 1-2 amp inverter is enough to kill your PSU, it should be dead anyway.
Ok, thanks man, im pretty sure you picked out my psu about 2 monthes ago =p So i think it's safe to assume it's pretty good.
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Because it's money that could be allocated to other parts.
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On October 15 2011 09:55 Dannnnn_The_Man wrote:
I see, and im just wondering, whats the point in not having say a 750 watt psu just to be safe with all builds? Is it just power consumption?
Just price. If you know you're never going to want more than a single HD 6950-level GPU, you'll never need more than 400W probably. It would make more sense to just save money or get a higher-quality power supply than spend on something of lower quality but higher rated power.
There's not much difference in power consumption. If a 400W PSU is 82% efficient at 20% load (80W draw) and a 800W PSU is 82% efficient at 10% load (80W draw), both will take the same 97.6W from the wall if you're using 80W while web browsing.
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And if you don't pay a premium to get a modular one, a higher rated one is very likely to have a shitload more wires to hide.
Even if you don't obsessively hide, they can still get in the way.
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United States166 Posts
I see, i was just wondering if there was a certain cause. Im really getting into building pcs and i wish i could build another one. Ive been trolling these forums slowly learning. =o
Since you guys are here, i have the psu that has provides all the wires built in (i forget what its called) and im trying to do cable management now which is kinda a pain in the ass. Any tips?
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If you want to hide wires neatly, plan it before you build. Otherwise you're fucked.
Oh, and invest in a metric asston of zipties, I like the 6" ones, personally, but it's all personal preference. Those are small enough to fit almost anywhere, big enough to feel properly solid, and still easily cut without endangering your cables.
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United States166 Posts
LOL well then.....im going to take it apart tomorrow and see if i can make it neat.
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On October 15 2011 10:12 Dannnnn_The_Man wrote:
LOL well then.....im going to take it apart tomorrow and see if i can make it neat.
Give yourself a healthy block of free time. Since you'll be repasting your CPU cooler, and should absolutely clean it well while you have it apart.
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United States166 Posts
Ya, ill just watch some mlg on my laptop while doing it.
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On October 15 2011 10:20 Dannnnn_The_Man wrote:
Ya, ill just watch some mlg on my laptop while doing it.
I suggest muting and minimizing the stream while handling a screwdriver. Not a joke, just cautionary. One slip can trash a PCB pretty good.
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EPT
