Hi Welcome to TSF
Your recent BSOD crash dump file is pointing to ntkrnlmp.exe
So we are going to first start with updating your current drivers to the latest
go to
Drivers and Downloads | Dell [United States]
Download the chipset, audio, video, WLAN, LAN, and storage drivers
Install them and reboot your computer
Run Driver verifier on your system for couple of days to see if it gives you any more BSOD if so post the crash dump files here
http://www.techsupportforum.com/foru...ed-473665.html