Last night I downloaded AMD Overdrive. It showed my Northbridge and HT link running at the same speed. I brought the HT down to 1800 (per another posting I had read). Tried pulling two of the ram sticks, but then my wireless wouldn't work. My wireless card didn't even show up in the device manager. Put the sticks back in and my card showed back up. Strange. Went ahead and converted the movie that I couldn't get half way through before, and all went well. Then I ran a stability test using AMD OD. It ran all six cores at 100% for an hour through varies exercises. That also went without a hitch. Core temp got up to 93 deg F during the test. So far so good. Thanks for the help !