Can I upgrade my computer without having to buy a new power supply?

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Brendan250

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Dec 23, 2013
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About 2 years ago, I bought an HP p7-1226s. It is a good computer, but is severely lacking in the graphics department. That is why I would like to upgrade it with possibly a GTX 750/750ti, or maybe an r9 270. Could I do that without having to change the power supply? I do not know the brand, but it is 300 watts.
 
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Brendan250

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Dec 23, 2013
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On nvidia's website, it says the minimum requirement is 300 watts. Are you sure? I've also heard that some 300 watt power supplies can work with it, and some can't.
 
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Joseph DeGarmo

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Mar 12, 2014
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A generic 300w PSU on a prebuilt machine will be a gamble with a GTX 750 Ti. I wouldn't trust it. I had a 460w PSU of the same brand and after running my GTX 660 on it for about a year, that PSU blew out, so I had to swap the PSU for a much better quality unit with more wattage. The XFX TS 550w would be a nice upgrade for a GTX 760 if you're willing to afford a better graphics card.

http://www.newegg.com/Product/Product.aspx?Item=N82E16817207013
 
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Smauersberg

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Aug 3, 2014
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I have the same HP system HP P7-1226s as you. I am running windows 7. I ordered a MSI GTX 750 and it goes to the startup screen and hangs. Can you tell new if you found something that works with this system?

Thanks
 
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Smauersberg

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Aug 3, 2014
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Being a newer card what would be something earlier to try. I did try to update the bios on the motherboard to a newer rev but when I rebooted it still showed the older version.
 
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