I didn't do a clean install and would rather not. It's an X2 4200+. Abit KN8. 7800GT. Civ4 Warlords crashes constantly. NFSU2 crashed constantly. Star Wars KOTOR crashed once and stalled once so far. Planescape Torment was having weird issues such as stalling that I don't recall having when the system was single core. Oblivion runs fine, but it's multi-threaded. Seems like anything that isn't gets limited to one core, so really my old 3200+ single core would be more effective in those instances. Everything other than games though run fine.
e; Some more KOTOR crashes, and also a BSOD that referenced "HCF_MSFT".