Need to upgrade.. help out

[Macer98]

hey guys so i have a project i just recently bought a used computer for cheap and want to give it some gaming power 

The Pc:

Hp z200 workstation

Intel Core processor i3-550, 3.20 GHz, 73W, 4 MB cache, 1333 MHz memory, Dual-Core, HT

4 gigs ram

1 PCI Express Gen1 slot

x1 mechanical/x1 electrical

1 PCI Express Gen2 slots x16 mechanical/ x16 electrical (used for discrete graphics)

1 PCI Express Gen1 slot x4 mechanical/x1 electrical

1 PCI Express Gen1 slot x16 mechanical/x4 electrical

3 PCI slots (full-height, full-length)

1tb HD

[Dzzope]

And your question is?

 

Start by replacing the PSU then add in a card for your budget.. if budget isn't a concern, throw it away and start again (Not really but it's not great)