Hello karen445, Here is the link for the specifications for your system.
Here is a link that can provide some information of this model video card.
It appears they recommend at least a 500 watt power supply. The Corsair 550 would support their recommendation.
The only issue that may arise is the length of this card. These high end cards are quite long and may not fit inside your case. You might measure from the end of your case where the video card will be installed to the front of the case at the end of where the video card would be installed and see if you have enough room for this card.
Since many vendors offer this card, some may have one of this model that is shorter than some others.
You also need to be aware of the increased heat generated by the video card and the higher capacity power supply.
It may be necessary to add another case fan to remove this additional heat. I would suggest monitoring the heat and see if an additional cooling fan is required.
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