Windows 7: BSOD after buying new motherboard help

Hi,

Recently i face BSOD error on my PC with my old motherboard Gigabyte G31-ES2L

then i repaired it with authorized service center but after that only one day my pc worked fine after that i got same BOD error.

Now i brought new motherboard Gigabyte G41-combo

but even now sometimes my PC automatically shuts down with same blue screen error and it works fine after restarts. But in my previous motherboard G31ES2L one BOD happened pc never starts (I m telling this because i want to know whether is it any other hardware problem or motherboard problem)

I m attaching the

Windows_NT6_BSOD_jcgriff2.zip

and my system repot.html.zip

please help me to solve problem.. Thanx in advance

I faced BOD almost while browsing in chrome Firefox with more tabs opened.. I tried to format PC but same problem happen.

please help me ..

no one here?