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SFX PSU for GTX 580? - Page 4

post #31 of 44
Quote:
Originally Posted by Blue Basher View Post

Ahh, you may have me there as I just used a psu calculator to generate my numbers lol. Chances are it wold error on the high side.
I don't own one nor will I ever, but isnt the tdp of a stock i5 95w, I can't wrap my head around how a 1100mhz jump would only generate ~5 watts more?
Also won't a CPU consume more power during a CPU/GPU intensive application as opposed to a strictly CPU instnsive application?
First off, as you know chips aren't "born" equal.... the worst samples will actually draw ~90W at stock clocks + boost (you missed that tongue.gif), that's why you have such high stock voltages on Sandy (far more than what 95%+ of the samples require to actually achieve those clocks)... that's more or less what it's all about, as long as you can keep the voltage low, the power draw will only marginally increase (there are samples that achieve ~4.5Ghz overclocks at voltages lower than stock).

Secondly, no.... a CPU will usually draw less power when stress tested in conjunction with other hardware than when it's being stress tested alone..... and that's because it has to allocate resources to less intensive CPU workloads like a VGA stress test (for example).
Quote:
Originally Posted by Blue Basher View Post

Not trying to call you out, just trying to answer sone of my own questions haha.
Stop being so defensive, I'm not hunting you.. smile.gif
post #32 of 44
Quote:
Originally Posted by Original Sin View Post

First off, as you know chips aren't "born" equal.... the worst samples will actually draw ~90W at stock clocks + boost (you missed that tongue.gif), that's why you have such high stock voltages on Sandy (far more than what 95%+ of the samples require to actually achieve those clocks)... that's more or less what it's all about, as long as you can keep the voltage low, the power draw will only marginally increase (there are samples that achieve ~4.5Ghz overclocks at voltages lower than stock).
Secondly, no.... a CPU will usually draw less power when stress tested in conjunction with other hardware than when it's being stress tested alone..... and that's because it has to allocate resources to less intensive CPU workloads like a VGA stress test (for example).
Stop being so defensive, I'm not hunting you.. smile.gif

Thanks for the clarification lol I learned something today.
Back to the original question from the op, now that I'm edumacated! Yeah the 450w psu should handle what your system.

And yeah iv been spending too much time on pirate4x4... If you ask any questions there you get flamed... beat, and finally asked to squeal like a piggy... After they have warmed up they then pillage your town, burn your crops, salt the land, eat your sister, and rape your goats.
    
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post #33 of 44
Quote:
Originally Posted by Blue Basher View Post

Thanks for the clarification lol I learned something today.
Back to the original question from the op, now that I'm edumacated! Yeah the 450w psu should handle what your system.
And yeah iv been spending too much time on pirate4x4... If you ask any questions there you get flamed... beat, and finally asked to squeal like a piggy... After they have warmed up they then pillage your town, burn your crops, salt the land, eat your sister, and rape your goats.
That reminds me of last weekend.... without the sister eating thing.... but I'm pretty sure the rest is all there.... I love spending time with my Bible Group.
post #34 of 44
Thread Starter 
Well I just finished run 1 of furmark (prime95 long fft in the background) and the temps are around 55 degrees all around (4 cpu cores and gpu). I'll run a second burn-in just to stress it more but temps are already dropping below 50 again as I type this...

So is this good, bad, or normal?
post #35 of 44
Quote:
Originally Posted by Din65 View Post

Well I just finished run 1 of furmark (prime95 long fft in the background) and the temps are around 55 degrees all around (4 cpu cores and gpu). I'll run a second burn-in just to stress it more but temps are already dropping below 50 again as I type this...
So is this good, bad, or normal?

What are your ambient temps, clocks, voltages? Something smells fishy here. Do you have any pics?

My 930 is only running at 3.5ghz at 1.27v and my temps IDLE at 30 and hit 70-75c at load, that's with a dedicated 480mm rad, 2k ultra k's, and an mcp350.

I know 1366 runs hot but I don't think a closed gpu CPU loop with a 120mm rad can achieve those temps underload.
    
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22" AOC HP wireless elite Rocket Fish 900W NZXT Tempest Evo 
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Seagate Barracuda 7200 1TB Samsung Koolance 480mm rad, MCP350, 4x 1900rpm Scythe S... Windows 7 64bit 
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post #36 of 44
Thread Starter 
Ambient temps are probably just above room temperature, I don't have a thermometer. I logged the data if you can make sense of it. Just finished run 2 CPU max was 65 and GPU max was 55. In the time it took to write this the cpu temps have fallen below 55 again (furmark ended so no gpu load).

Edit: And here is a screenshot http://i47.tinypic.com/2e2qhyo.png

Prime95 is still running and cpu temps are below 50 and falling.

Further Edit: The case is a Mana 134 http://www.inwin-style.com/pd_info.php?id=177 and the only fans installed are those on the radiator (so they are getting less air than the FT03 would, since it has a 140mm fan pushing the chimney)
Edited by Din65 - 9/24/12 at 2:44pm
post #37 of 44
Thread Starter 
Quote:
Originally Posted by Original Sin View Post

As suggested above, run Prime95 Large FFTs and Furmark/Kombustor for 30 minutes... let us know about the temps.

So how are the temps? I don't know if they are good or bad.
post #38 of 44
Quote:
Originally Posted by Din65 View Post

So how are the temps? I don't know if they are good or bad.

To be frank, I (and likely others as well) expected far worse. I was tempted to call bollocks but I looked up some reviews of the unit on HardOCP and bit-tech and your reports seem to be consistent with their testing.

It may work reasonably well in the FT03-Mini in fact, since the GPU being air-constrained wouldn't be as detrimental. However, I still wouldn't get it myself from the perspective of upgradeability and flexibility (e.g. if you need to change your GPU or it fails, you pretty much have to use a different CPU cooler too).
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post #39 of 44
As stated above, the temps are far better than expected. wink.gif
post #40 of 44
Thread Starter 
So if I've got my heart set on a slim, vertical tower with no wasted space on bays I won't use, but I still want a flawless 1080P experience, what are my alternatives? And to keep it mildly on OP topic, do you see the two pumps, gpu fan, 120mm radiator fan, and 140mm case fan still fitting under the 450W/37A threshold if I want it to last a long time?

And since I admit my ignorance with AMD/ATI in general, can I find similar performance (cpu/graphics/thermals) there?
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