I Re-seated this card 4 times until it worked without pixlised dell flash screen. would not even do a windows7 experience index (went to no output) tried Performance test, and pixlisation started again. my Dell XPS PSU meets and exceeds its power needs, and have had power hungry card in there before which died after 2 years. Just unlucky maybe, but have seen similar problems about this card on some foram's, so I'm sending it back for a refund, and have already ordered a similar card from Amazon, as the customer service is excellent hence the 4 star rating, and nothing to do with the card :-)