Question about my graphics card and computer

[leecherkid]

Hi everyone, I recently purchased a GTX 750 TI from newegg and here's the link. http://www.newegg.com/Product/Product.aspx?Item=N82E16814487024&cm_re=gtx_750_ti-_-14-487-024-_-Product I received my purchase around today in the afternoon, and noticed something on the box of the graphics card. It says, "400 watt or greater power supply with a minimum of 20 amps on the +12 volt rail." I'm worried that my prebuilt pc won't handle the graphics card and it won't be in good use of its full potential. My prebuilt pc is a hp pavilion 500 and it has about 300watts. Will I be able to run the graphics card or should I refund it?

 

[ManiacRegent]

I would not recommend trying to run it on a 300W power supply. Why not just get a 400-600W PSU for 60~90?

 

[Pcbuilder123]

The 750ti will run, but if your power supply has a bad voltage regulator, kiss your components goodybe. Go for a cx430, as your next upgrade. The 750ti will run at its full potential, but it is not safe to run it.