Quote Originally Posted by Eekiki View Post
For what you have in your case, I'd recommend at least a 750 watt PSU, preferably 1000.
? 1000 W PSU for a setup with a non-overclocked by the sound of it CPU with a TDP of 125W, 4 GB of memory in 2x2 modules and a graphics card running at about 19W!
A quality PSU of 300-400W would be the normal recommendation.

Quote Originally Posted by Eekiki View Post
And never underestimate the effect dust buildup and poor cable management has on your components! Always keep your case free of dust, and be mindful of airflow when positioning cables. The more open space there is in your case the better.
Now this I can get aboard on, the better airflow you have in a case, the less strain you put on the CPU and GPU (and any other) heatsinks.