i already have one 9800gtx and i wanted to go sli so i bought another one but i could only find the newer 9800gtx+ untill i found a regular one on chiefvalue.com. i bought it and now i have it and its the 9800gtx+. so the question i have is can i still use it for sli? they have the same part number and same specs so is it possible or am i kinda screwed?