What I see is an almost 75% good to better rating on a brand new card that may be having minor driver issues and then throw in some user stupidity, and poor power supplies and you have a pretty good overall rating in my opinion
Theres a review in there stating, its a dell upgrade and their old card works fine
Wanna bet their old underpowered Dell PSU cant handle the power uppage, or that it doesnt even have a 6 pin connector?