HP won't tell me if I can install this graphics card?

I want to buy the HPE 410E but they say it will void my warranty and will not tell me if it will work with the pny vcq 2000 card I want to buy a href="http://www.tigerdirect.com/applications/SearchTools/item-details.asp?EdpNo=6807085&CatId=28" rel="nofollow"http://www.tigerdirect.com/applications/…/a can anyone help?