Well we need to know more info. Is it a custom build or manufactured? If it's custom, can we have the motherboard? If it is by a brand, what is the make/model?
Whatever it is, you're going to need a better GPU and a little more RAM.
yeah cnt really reccomend n e thing until we have the motherboard name and model number
but 2 be honest it all cud do with a lil upgrade it all depends on how much cash u have because i wud think ur mobo is socket 478 which means in terms of upgrading cpu it wudnt really be worth it so there is no point upgrading the rest with a low end processor ???
but i may be wrong better answers will cum when we have more details