Help computer won't turn on.

colecc7

Honorable
May 10, 2012
3
0
10,510
Hi, I was playing a game when my computer made a loud bang and turned off, i could smell burnt rubber. I opened up the case and my psu was really hot. today i went out and got a new psu but, when i installed it nothing powered on but a small light on the back of the case, it was only on for a second. I have no idea what to do, please help!!!
 

colecc7

Honorable
May 10, 2012
3
0
10,510
the specs are
-gigabyte ga m68mt s2p motherboard
-hitachi 1 terabyte hhd
-cooler master gx bronze 450w psu (brand new)
-amd amd radeon hd 6950
-8g of transcend ram
-and a AMD Phenom cpu