Win7 Physical memory dump

I have a Lenovo E520 if that matters. I have updated the Bios not that long ago. Since I did that I am getting a knocked off. This has happened a lot . I can't do anything but turn off the computer. Any help is would be appreciated.

It says restart your computer a problem has been detected

IRQL_NOT_Lessor_Equal
Stop:0X0000000XA(0X00000001001F91B0,0x100000000000000x01,0xffff80000308D93)

Dumping physical memory desktop to disk 100

Thank You,
NcRam356