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 Reply to noble22 Best solution DragonChase 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. Reply to DragonChase Ask the community Post an answer Related resources: ForumAlienware X51 upgrade help ForumUpgrading My 240 Watt AlienWare X51 (need Help with picking a new graphics card) Forum[Pictures] Just upgraded my Alienware X51, now it doesn't even detect my Hard Drive. Help please! :( ForumSolvedAlienware x51 case upgrade? ForumSolvedUpgrading GPU on Alienware x51 ForumSolvedNeed help moving Alienware X51 to bigger case with bigger Power Supply ForumSolvedUpgrading alienware X51 ForumSolvedUpgrading an Alienware X51 ForumSolvedHelp with Alienware x51 ForumAlienware x51 GPU Upgrade ForumSolvedUpgrading Alienware x51 ForumSolvedUpgrading Alienware X51 ForumSolvedUpgrading Alienware X51 Gpu ForumAlienware x51 Upgrade ForumAlienware x51 No power problem PLEASE HELP ForumAlienware X51 GPU Upgrade ForumI would like to know how much FPS i get when i use a alienware x51 MSI GeForce GTX 650 grafic card, can anyone help me? ForumPC build for 600 that will beat the alienware x51 i3. please help. ForumUpgrades for Alienware X51 ForumUpgrading Alienware X51 (New Case and Power Supply) More resources Read discussions in other CPUs categories AMD Intel Intel i5 Intel i7 Phenom Cooling Performance !