power supply question

[compu-dude]

hey all,

i was just wondering if its possible to upgrade my power supply in my dell 4550. i read t hat they r proprietary so i wasn't sure what that meant 4 upgrading. :question:

 

[dethangel]

it is proprietary, no you cant upgrade it, justa question, y u wanna upg ur PSU? u adding a new device?