Solved Alienware X51 Upgrade help Tags: Gtx Power Supplies CPUs Alienware Last response: July 8, 2013 5:10 AM in CPUs Share noble22 July 8, 2013 4:44:14 AM Hi I have an Alienware X51 with a 330w power supply running a GTX 555, I would like to get a GTX 660 ti however I do not know if i will need to get a new power supply also. My questions are: Will a GTX 660ti work in my current (330w) PC? and/or If I need a new power supply which are compatible and will fit in such a small space? Thanks in advance More about : alienware x51 upgrade Best solution DragonChase a b ) Power supply a b à CPUs July 8, 2013 5:10:24 AM I think your worst problem is airflow....if you would go 650 watt (YES you do need a new PSU). Worst case scenario you would have to get a new case, which i do highly recommend so you will be able to upgrade allot better and more. Problem is, i have never seen such a size PSU??? have you tried contacting Alienware to order a better PSU? And seriously measure the space required for a diffrent GPU, it must breathe too, so please look out. Share Can't find your answer ? Ask ! Publish Related resources SolvedAlienware X51 upgrade help Forum SolvedUpgrading My 240 Watt AlienWare X51 (need Help with picking a new graphics card) Forum Need help Upgrading alienware X51 case, Psu, and Graphics card Forum [Pictures] Just upgraded my Alienware X51, now it doesn't even detect my Hard Drive. Help please! :( Forum SolvedAlienware X51 graphics card upgrade Forum SolvedAlienware x51 GPU upgrade Forum Solvedi m using a alienware x51 just want to know abt best gpu upgrade Forum Solvedwhat games can i play if i upgrade my alienware x51 gpu to a gtx 660ti? Forum SolvedHow can i upgrade my alienware x51 to run arma 3 on ultra? Forum Solvedalienware x51 upgrade? Forum SolvedAlienware x51 GPU Upgrade Forum SolvedUpgrading Alienware x51 Forum Solvedupgradable precessor for alienware x51 desktop? Forum SolvedAlienware x51 case upgrade? Forum SolvedAlienware x51 end-2013 model with Gtx 670 for triple monitor setup?? Help!! Forum SolvedAlienware X51 upgrading possibility query Forum Alienware x51 power supply upgrade Forum SolvedAlienware X51 Upgrades Forum SolvedNeed help moving Alienware X51 to bigger case with bigger Power Supply Forum SolvedAlienware x51 upgrading problem Forum More resources Read discussions in other CPUs categories AMD Intel Intel i5 Intel i7 Phenom Cooling Performance !