Hi all:
   Well been one hell of a move but finally back on line and mining away. Well, almost.  In reading the last few pages, I have had the same freezing and rebooting problems as well. Has been a long road to find the cause of it. I did try the  less overclocks but that really didn't help much. Well, I finally found out what was doing it. It was the temp control program trying to adjust the speed of the fans. Somewhere in the mix it loses the connection with one or more cards but doesn't trigger a reboot. When the utilization falls past the set point, then watchdog does print a message stating that and reboots.
   So by not running the temp control and using a set fan speed high enough to keep things cool, I am running now with no reboots at all.

This all really started now that the hot weather is here. While it was cool all was good

hope this helps others.       Thay