I just recently got myself a Phenom 9950 and Asus M3A79-T Deluxe. I'm running the chip up to 3.3Ghz at 1.4Vcore using only a multi increase. I am however struggling to get 4 x 1GB Crucial Ballistix Tracers DDR1066 stable, even at 800mhz, unganged and ganged 2T it will be stable for a couple of minutes, and sometimes even for almost an hour AOD stbility test.

My setup is:
Phenom 9950
Asus M3A79-T Deluxe
4 x 1GB Crucial Ballistix Tracers
EVGA GTX280 (640 core, 1391 shader, 1250 memory)
Antec Trio 650Watt PSU.

Any ideas how I could get 4 x 1GB ram stable on this setup?

With 2 sticks and same settings I can run stability tests for an hour without any problems...