ok i know i am trying to get a hd 4850 too and i have quad core amd phenom 2.3

let's talk about your cpu , mine would destroy that.

do u have an agp or pci slot?

I will probably keep my hd 3650 and my power supply , i don't want to risk anything. I cannot trust it if i upgrade my psu.

It's ok , thanks everyone for their recommendations. but i can't risk my hardware , my quad core chip and everything.

I hope the new psu will run well all my hardware. Otherwise it is a new pc , i don't wanna burn or keep restarting , things like that.\

It's so hard to upgrade your computer. WTH?

Last question; will it fit into my box which is gateway gt5676 desktop computer ???

I am not sure , it's not a gaming pc.

Last question ; will it fit into my box ??? which is gateway gt5676 desktop computer. ???

Which brand , where to buy ??? please , help me! ! !

i will get a new video card, hd 4850, need a 500 watt with 75 watt 6pin connector to run it.

Which one is good??

i checked the box , it says 400 watt recommended for ati hd 3650 1gb video card.

i checked on tigerdirect.com the same card , same brand , system requirements, it says 300 watt . which one to believe?

i will get a new power supply for 500 watt and get a hd 4850. but how will i find one with a 75 watt 6pin connector ?

do u guys know any??