Very likely there is defective memory. Here are steps that need to be done for now though:
1) Update video card driver:
nvlddmkm nvlddmkm.sys Mon Jun 14 00:53:52 2010
Link Removed - Invalid URL
2) Uninstall ESET in safe mode using the tool here:
AV Uninstallers - Windows 7 Forums
Reboot and install MSE to replace it.
3) Visit the manufacturer's site of your wireless adapter. Download and install the newest update:
netr7364 netr7364.sys Thu Mar 12 23:13:08 2009
4) Update Realtek HD Audio driver:
RTKVHD64 RTKVHD64.sys Fri Mar 26 06:30:50 2010
Run the .exe download once. Reboot. Then run it again to completion:
Realtek
5) Update Realtek lan driver:
Rt64win7 Rt64win7.sys Thu Mar 04 08:42:52 2010
RTL8111
6) Post new crashes if they happen after doing this. Then also along with that, post a screenshot of a program called CPU-Z. We need to see the spd and memory tabs.