I have an Athlon 64x2 3500 and an Abit AV8. I have just upgraded from 1Gb Ballistix PC4000 ram to Corsair 2GB DDR XMS3200C2PT TwinX (2x1GB) CAS2. My system is not overclocked at all and I just wanted more RAM as I use photoshop alot. Installed the RAM last night and the machine is now unstable. BSoD and Hard Resets!! I have tried runnng it with SPD, Auto and Manual settings and Auto seems the best. Any ideas? I have not touched anything else, why cant things just work.