Windows 7 BSOD IRQL NOT LESS OR EQUAL (Aparently caused by Ntoskrnl.exe)

[Cornholioam]

Hi.

I have been having this BSOD while playing games.

Windows 7 Home Basic 64 bit.
AMD Athlon II P340 Dual Core 2.2 Ghz
2GB RAM

One year old Vaio Notebook.

Minidump attached.

Any support would be really appreciated, thanks.