Based on your problem, I recommend you installing the latest Intel® Rapid Storage Technology version we have at the following link:
I installed the updated drivers (f6flpy-x64.zip) but the BSOD became more frequent (about every 5 min). I rolled back the driver supplied by DELL (ver 126.96.36.1996) and the BSOD frequency returned to the original (every 15min to every hour). It seems the current driver made the frequency worse for some reason.
Other than updating the driver, do you have any other recommendations for me?