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NVIDIA GTX560 Ti 448 on a 500W PSU?

Last response: in Graphics & Displays
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March 22, 2012 4:09:34 AM

Hi,

so I've seen some other threads regarding PSUs and this model. I've seen the number "at least 36A on the 12V rail" thrown around but I fear that my setup would be cutting it rather close. So my questions are would this setup work and if not would I risk damaging components by trying?

PSU Thermaltake Litepower 500W
Mobo MSI P55-CD53
CPU Intel Core i7-860
8GB RAM (4x2GB-1333)
HDDS WD 1TB SAT2 WD10EADS
Samsung 1TB SAT2 HD103UJ


Also I am well aware of impending Kepler announcements but this GPU fits my needs quite nicely and would replace a GTX 260.
I am not particularly worried about that but do you think that my CPU might bottleneck the GPU to a significant degree?

This is the model I am considering btw.

edit: fyi as of yet everthing is running on stock clock. Before overclocking I would certainly get a new PSU, I am only considering this as a temporary setup until I upgrade mobo,cpu and ram

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a c 87 Î Nvidia
March 22, 2012 4:37:57 AM

I can't find any real reviews of that power supply. Thermaltake has a pretty bad reputation when it comes to power supplies though. That unit is discontinued and was made by FSP.

http://www.realhardtechx.com/index_archivos/Page680.htm

The GTX 560 Ti 448 pulls about 265w at maximum but much less on average.

http://www.techpowerup.com/reviews/ASUS/GTX_560_Ti_448_...

I would say as long as you don't overclock you are probably OK. But if it was my computer I would replace it when you can afford it with something decent.
Corsair, Seasonic, PC Power and Cooling, XFX, Silverstone, Enermax, OCZ and Antec are what you should look at. 500-550 watts should be fine with one card and 700-750 watts if you plan on adding a second one in Sli.

CPU will not bottleneck that card at all.
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March 22, 2012 4:38:45 AM

This will totally work as a temp setup although I'm not so sure about long term. Honestly, I have run the older 560 ti on a 300 watt PSU, and it ran fine (at standard clocks.) You will probably have no processor bottlenecks, expecially with something like a 300 mhz overclock. You only really see major bottlenecks with AMD cards. The only thing that can damage components is the voltage, not amperage.
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March 22, 2012 4:41:20 AM

I have that card, but am running an OCZ 550watt psu. I used the power supply calculator that Newegg has..but it doesnt have that card. For your system with a regular 560Ti, it comes up to 495watts. With the GTX570 it comes up to 559watts. If it was a better brand 500 watt, maybe, but with that one, I dont think it would run it under load
http://images10.newegg.com/BizIntell/tool/psucalc/index...

by the way, some of the manufacturers specify 38amps
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March 22, 2012 4:45:09 AM

Thanks that helped a bunch. I'll be watching the market for 2 more weeks and then I'll report back with the results.

So I'm kinda new to the forums. Do I just select one of the answers as "best answer" when I got all I wanted?
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a c 87 Î Nvidia
March 22, 2012 4:47:13 AM

Yep, selecting a best answer tells the mods the thread is closed.
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March 22, 2012 5:31:02 AM

Best answer selected by Bigpet.
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