Quote Originally Posted by keroo View Post
I will consider replacing my PSU then. Before I buy a new one, what are the things I should look out for a new PSU?
Depends on your hardware. Like the reason it seems like it could be a power issue is that you changed the motherboard, probably to one that uses more power. A 1200 watt PSU is the upper-end of what most people can use. You could get away with less if you spec out if the CPU+MB+RAM+Video Card's power envelope, but when you see "oh 400 watts will be fine" consider that the PSU efficiency is only around 80%. So you could get away with 500 watts... if you have no other parts (some people have several hard drives, some have only one.) A 750 Watt PSU is probably the most you'd reasonably use in a non-SLI system.