PC Upgrade Help

fatyg5

Reputable
Aug 28, 2014
2
0
4,510
So, I own a Lenovo thinkcentre edge 62z. It has an Intel i3 processor, and Intel 2500 integrated graphics. I would like to upgrade the graphics on this to a Radeon HD 7770. I would like to know, how I would be able to do this, because the Radeon needs a minimum PSU of 450 and I don't know if that would overload my PC. Can anyone explain how PSU works, and tell me if it's possible for me to upgrade to this graphics card?