ran the test on my current 9800gt's and it passsed the full test 3 times and found no errors

so what on earth is the problem? well i decided to test all my games and these are the games i have:
Turok: No Crash
Bad Company 2: Crashed
Call of Duty BO: Crashed
Call of Duty MW2: No Crash
Call of Duty MW1: No Crash
Painkiller all Series: No crash
Fear 1: No Crash
Fear 2: No Crash
Fear 3: Crash
Far Cry 2: Crashed
Killing Floor: No Crash
Burnout Paradise: No Crash
Resident evil 4: No Crash
Resident Evil 5: Crashed
Bioshock 1: No Crash
Bioshock 2: No Crash
BattleField 2: No Crash
Legendary: No Crash
Clive Barkers Jericho: Crashed
Notice all the highlighted ones are the ones that crashed. all of these are the games that use 50%+ of my GPU usage. all of the others use 49% or less on average. all games maxed out Graphics Settings in game
