HELP!should i upgrade my power supply or not?

shang72

Honorable
Nov 25, 2013
5
0
10,510
I want to upgrade my power supply,but i need some assisance if I'll upgrade it or not.
I currently have a 250 psu
My current rig are the following;
Microprocessor
--Intel Dual Core E5800
--3.2 GHz, 2MB L2 Cache, 800MHz FSB
-Chipset: Intel G41 Express Chipset
-Cache: 2MB Transfer Cache
-Memory: 2GB DDR3
-Memory Speed: 1333MHz
-Audio: embedded high definition 5.1 channel audio support
-Hard Drive: 500GB SATA 7200rpm
-Optical Drive: DVD-RW Dual Drive with LabelFlash & DiscT@2 Technology
-Video Graphics:power Color HD 6570-requires-400 watts
And im planning to add 4gb ram to increase the power of my pc..
So what am i gonna do?should I upgrade my psu or not?