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Hiper 580W Type R for GTX 560: 12V 20 amp rail?

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March 29, 2012 10:17:33 PM

Hello,

I just bought a new computer and ordered this card for it: http://www.amazon.com/gp/product/B0051E3BYM/ref=oh_o00_...
I was hoping to use this power supply from my old computer instead of having to buy a new one: http://www.newegg.com/Product/Product.aspx?Item=N82E168...

But after reading about the requirements for newer cards (12V ~38amp), I'm not sure if the Hiper can handle it.
I've read a ton of guides to power supplies, yet I still do not quite understand what rails are physically; is a rail the single pack of wires with a single connection on the end of them that plugs into the graphics card or is it something inside the PSU? If so, does that mean this PSU will supply the GPU with a 12V 20 amp "rail"?

But I also read that the two 12Vs combine to give a total of a little less than 38 amps, which in the case of this PSU (12V1 20 amp & 12V2 18 amp) it would be sufficient, right? Again, then what exactly is a rail?

Also, I see some $300 PSUs that have 4-5 12V connections ("rails"?) at 20-30 amps. So are you telling me that these expensive PSUs can not handle high end GPUs? While cheaper units have a single 12V at 80 amps. And yes, I've read about multi-rail vs single rail and did not understand any of the explanations given on what the difference is and how they work.


Thanks to whoever is able to answer this!

BTW, i7 2600 CPU & 8 GB DDR3 if it's important to know.

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a c 1180 ) Power supply
March 29, 2012 11:20:20 PM

For a system using a single GeForce GTX 560 graphics card NVIDIA specifies a minimum of a 450 Watt or greater power supply that has a combined +12 Volt continuous current rating of 24 Amps or greater and that has at least two 6-pin PCI Express supplementary power connectors.

Total Power Supply Wattage is NOT the crucial factor in power supply selection!!! Total Continuous Amperage Available on the +12V Rail(s) is the most important factor.

The HIPER TYPE R 580W (HPU-4K580-MS), with its maximum combined +12 Volt continuous current rating of 30 Amps and with two 6-pin PCI Express supplementary power connectors, is sufficient to power your system configuration with a single GeForce GTX 560.
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April 6, 2012 1:36:44 AM

Thanks for the answer!

Update: I got the 560 gtx and so far it's running great with the Hiper on Crysis 2 @ 1680x1050 ultra settings, 30-50 frames.
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a c 1180 ) Power supply
April 6, 2012 1:43:39 AM

BWinship said:
Thanks for the answer!

Update: I got the 560 gtx and so far it's running great with the Hiper on Crysis 2 @ 1680x1050 ultra settings, 30-50 frames.

Good to hear it's working well for you.
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April 13, 2012 12:18:40 AM

Best answer selected by BWinship.
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a c 76 ) Power supply
April 13, 2012 3:38:56 AM

The only problem you MIGHT run into is if you decide to overclock. The card is a factory OC model anyway, of course (have the same one myself, as a matter of fact), but with the cooling solution it has, you can easily push it as far as the ASUS software (GPU Tweak, not the one that came with the card) will let you. At the top range, it requires more voltage though, and that puts more strain on the PSU as a result.
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April 15, 2012 6:20:38 PM

Yea I'm not sure about overclocking: My case is the stock HP so the air flow probably isn't nearly as good as a high end case. Max temp is usually 67 deg C according to MSI afterburner. I was wanting to overclock it to the specs of the ASUS DC II TOP version: 850 engine clock & 1700 shader clock to 925 engine & 1850 shader. Does the TOP version have increased voltage over the one I have?

Would you please let me know what your OC and max temp are?

Thanks!
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a c 76 ) Power supply
April 16, 2012 2:57:04 AM

BWinship said:
Yea I'm not sure about overclocking: My case is the stock HP so the air flow probably isn't nearly as good as a high end case. Max temp is usually 67 deg C according to MSI afterburner. I was wanting to overclock it to the specs of the ASUS DC II TOP version: 850 engine clock & 1700 shader clock to 925 engine & 1850 shader. Does the TOP version have increased voltage over the one I have?

Would you please let me know what your OC and max temp are?

Thanks!


My current OC is only 900/1800 and stock memory, at 1.025V (GPU Tweak insists that I up the voltage for some reason, even though I think it would do 900 at the stock 1.012V because, for me, even if you unlink the voltage from the clock speed, it wants the voltage to be be upped a little anyway. Afterburner would probably be better, but the version I have won't let you set voltage, and I haven't tried the newer beta version yet). I just leave it there for everyday usage, since I just don't need anymore than that with my setup (1280x1024 CRT monitor). In any case, the max temps I've seen are 65-67 degrees with that OC, which is the same as it was stock for me. I do have the fan profile set slightly more aggressively than stock, though, and always did, even at stock speeds (60% at 60 degrees, which is a bit loud, but I don't care about noise as long as the card stays cool).

To answer your question about the TOP version voltage, I don't know that, honestly, but I would think that it's at least a bit higher than the OC version, yes.
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a c 1180 ) Power supply
April 16, 2012 3:48:25 AM

ASUS GeForce GTX 560 TOP DCII

GPU Clock: 925 MHz
Shader Clock: 1850 MHz
Memory clock: 1050 MHz

Typical Gaming Load
GPU voltage: 1.049 V
Memory voltage: 1.526 V

Furmark Stress Test Load
GPU voltage: 1.073 V
Memory voltage: 1.527 V
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a b ) Power supply
April 16, 2012 3:53:23 PM

This topic has been closed by Mousemonkey
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