Thanks for everyone's suggestions. I do appreciate it. I have rechecked my cables and drive connections. All are good and tight. I have completed running chkdsk on all partitions of the 2TB drive, and on the SSD drive. All reported NO ERRORS. So far, i have not had the BSOD since I modified the power settings to never turn off the disks. I am leaning towards the issue being having the main page file on the SSD, and perhaps the power setting powering it down. I will be running more tests, (large file transfers, sleeps, and hibernates) to see if my system is now stable. Bob