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XP550np 430w PSU

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July 18, 2012 6:32:38 AM

Hi, I've recently joined the PC master race and am looking to upgrade. The problem is, most of the high end cards I am looking to buy have a PSU requirement that is way to high. What PSU should I get to accommodate a high end graphics card? (HD 6850, GTX 580) Or, if someone could tell me if this PSU (stated in the title) can power a GTX 550 ti or GTX 560 ti?
My current specs:
Intel Core 2 Duo E6400 @2.13ghz OCed to about 2.6ghz
Gigabyte GA-965P-S3
ATi Radeon HD 4670
XP550np 430w PSU
Thanks in advance. :) 

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a c 158 ) Power supply
July 18, 2012 12:19:17 PM

There is a massive difference in the power requirements for all of the GPUs that you listed. The PSU you listed can only provide about 16A on the 12V rails without failing: http://www.hardwaresecrets.com/article/Thermaltake-Pure... The upside is that the unit didn't take any PC components with it when it failed. The downside is that it will not support any decent modern GPUs; you should definitely replace it.

It's interesting that it works well with your current GPU. If it's stable with that GPU, then it may actually work with an HD7770 or the GTX 550ti. I still would recommend a good quality PSu to replace your current PSU. A great deal on an awesome PSU right now is the Seasonic M12II-520: http://www.newegg.com/Product/Product.aspx?Item=N82E168...
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a b ) Power supply
July 18, 2012 12:56:22 PM

Rugger is right about replacing the CPU and that deal o the Seasonic. If I needed a PSU, I'd be all over that.
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July 19, 2012 2:14:57 AM

Thanks Rugger! Would it possibly power the Gigabyte HD 7770 OC?
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July 19, 2012 5:01:22 AM

tehgeneration said:
Thanks Rugger! Would it possibly power the Gigabyte HD 7770 OC?


What is your overclock Vcore voltage (stock is 1.25 V)?

Dave
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a c 158 ) Power supply
July 19, 2012 11:32:24 AM

tehgeneration said:
Thanks Rugger! Would it possibly power the Gigabyte HD 7770 OC?

Let me be clear...even if the PSU does work with one of the new GPUs I do not recommend using your current PSU with a new graphics card. It is of a very old ATX12V 1.03 standard that was slightly updated to add a PCIe power connector and a 24-pin mobo connector, the 12V rail is very weak, and it is a low quality PSU. If you're in the US, then the minimum PSU that I would recommend is the Corsair CX430. It is a decent quality PSU with a much better 12V rail (almost double the amperage with 28A), a good 3yr warranty from a quality retailer with great customer support, fully meets the modern ATX12V 2.3 standards, and can be had for a paltry $20 after MIR.
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