Need 1000w PSU recommendations.

Snograt said:
Heh, my Steam folder was bigger than that 'til I saw the light recently and deleted all the dross ^_^
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I may have to retract my statement, I never took Fraps into account. Having the ability to record gameplay from every game I play (as opposed to just the games that have the option to do so on consoles like Halo 3/Reach or Uncharted 2) in singleplayer or multiplayer, I can see myself recording quite a bit incase I see or do anything cool!
 
stulid said:
Yes, its best to run a high frequency switching mode PSU at around 50-60% for best efficiency.

take this bell curve for the TX750

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Actually looking at that again, even running at say 30/35%, you're only 2% less efficient than you could be if you were running at the 50/60% mark. Over the course of a year or so, that 2% difference isn't going have that much of a negative affect on energy usage is it?

I'm just going over it in my head. I'm not sure when/if I'm gonna go Sli, but I'd like to have to option if I needed it without having to buy a new PSU. So ideally I want to run a PSU in my initial build that's capable of Sli, even though it'll only be running a single GPU for a good year or so. But I don't want to do that if I'm going to waste too much energy over the course of time spent with a single GPU (in which case I'd rather go for a PSU suited to a single GPU, then buy a new GPU in a couple of years time).

Any help on this would be great :)
 
stulid said:
Just buy any suggested to you and stop over analyzing the problem, you want the option later.
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AAGGGHHH! BUT I NEED DETAILS!

I do this with anything I'm spending out on. Gotta know I'm getting stuff I'm gonna be happy with!

So yeah, instead of recapping the whole thread and conjuring up tons more questions, for said setup:

i5 2500k overclocked to 4.5+GHz.
EVGA 580 SC.
8GB DDr3 1600MHz.
Asus z68 pro mobo.
Noctua NH-D14 cooler.
Samsung Spinpoint 1TB.
ASUS DRW-24B3LT Internal 24x DVD±RW Rewriter.
Cooler Master HAF X (5 fans or so?)

I need 1000W or 1200W?

Thanks again.
 
stulid said:
You also dont want to run a PSU maxed out.
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+1 max efficiency is at 50-60% by the shape of the graphs in those reviews!

EDIT: i have just had a look at my energy bill and it says that it is 10.8p/KWh, i wonder how much a 1000w PSU would cost in a year :p
 
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panyan said:
+1 max efficiency is at 50-60% by the shape of the graphs in those reviews!

EDIT: i have just had a look at my energy bill and it says that it is 10.8p/KWh, i wonder how much a 1000w PSU would cost in a year :p
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Any idea what you're spending a year right now? I might be able to make an estimation on a 1000w then.
 
olivier renault said:
1000W.

For SLI, 1200W with potential for heavy overclock.
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Any ideas on how much percentage-wise I'll be using up with the above setup using a single GPU on a 1200w?

I'm just trying to determine whether or not the PSU will be running too inefficiently for that year or so with the single GPU to even warrant going for a 1200w or not.
 
Anesthetize said:
Any ideas on how much percentage-wise I'll be using up with the above setup using a single GPU on a 1200w?

I'm just trying to determine whether or not the PSU will be running too inefficiently for that year or so with the single GPU to even warrant going for a 1200w or not.
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GTI480 Furmark : 650W

GTX480 SLI Furmark : 850W.

At Idle, a lot less.

If you're worried about efficiency at low load, get a Gold rated PSU.
 
olivier renault said:
GTI480 Furmark : 650W

GTX480 SLI Furmark : 850W.

At Idle, a lot less.

If you're worried about efficiency at low load, get a Gold rated PSU.
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Not really worried about efficiency at low load, I was planning on buying an efficient PSU. Definately gotta make sure the PSU powering the system is of high quality. On top of that, I read about some feature the Asus Z68 mobo has where it can lower the power consumption even more on on the GPU when it's at idle by something like 30/40w, and even turn off the second GPU when it's not needed if I had Sli.

My concern was just a general one as the most I expend at the mo is about 350w with a PS3, so jumping back into PC gaming in this day and age is also costing more energy!

I'm aware of that already though, and still willing to build. I was just curious as to how much something like this could even cost to run.
 
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