Help deciding if graphics card is compatible

[saethorn]

I want to buy an ATI Radeon HD 4850 1g graphics card. Before i buy i need to know if my computer is compatible with it. How can i determine this?

 

[hunter315]

Do you have a PCI-E 16x slot?(Open it up and take a look, thats the easiest way) Also post what power supply you have, make and model preferably, or if its a prebuilt post the model number of the system, we can tell you a lot from it.