I have 2 pcs a optiplex 9010 which is the Desktop model tall but thin which i am going to try to exchange with the ebay seller which had a 30 days return policy to the MT model which is tall and wide. And a dell vostro 260. I am currently wondering if I can temporarily run a evga 750 ti ftw without the 6 pin plugged in as the psu on the Dell vostro 260.