http://i.imgur.com/qsorcGrm.jpgmPandaminer GPU's now crash when I go to mine. all cards recognized at least one will crash, always gpu4 then claymore goes to reboot and freezes
Tried mining ZEC instead of one card crashing, 3 crashed

/ same freezing result
This sounds like my rig when i had a power issue. Add another PSU to the mix and see if you're just running out of juice.