is it confirmed that gtx 1050 ti mini zotac will fit in optiplex 780 bcauze i m not sure that we would have to do any modification.one more question does modifying for graphic card to fit lmakes it lag or lower its performance?does anything happens in performance if we modify a card becauze i m getting the mini gtx 1050 ti zotac version to fit in my optiplex 780 and i m curious to know will it work fine??and i also want to do gaming am buying for gaming.will it game greatly like will it game just like gtx 660?? hoping for good and direct answers.my psu is 255 watts which is enought for this 1050 ti mini zotac.