With my current AV8 I had to drop the memory to 2T to get is stable. However, since Prime95 wouldn't run for more than a minute, after trying everything, I decided to switch the two RAM dimms from banks 3 & 4 to 1 & 2. And now everything works with 1T! The RAM in question was Corsair TWINX 3200C2PT, timings are 2.5, 3, 3, 6 and has a voltage of 2.65. Now, in the manual is states that you can have two dimms placed in either 1&2 or 3&4 while leaving the other two empty. Obviously, for me it only seems to work right with banks 1&2. Is this a common thing? Perhaps anyone who has some instability could try switching the RAM slots?