Crashing issues after changing power supply.

[burnoutlegend]

Hello,
after changing my broken psu with a new one after about 5-10 minutes of playing battlefield 3 my computer crashes. The power supply does not break (the light on the back doesn't go out) and my computer restarts itself. Any ideas on how to fix it?

 

[jnkweaver]

Hello,
after changing my broken psu with a new one after about 5-10 minutes of playing battlefield 3 my computer crashes. The power supply does not break (the light on the back doesn't go out) and my computer restarts itself. Any ideas on how to fix it?

Full specs of the computer and power supply please?