Why dont you help him, instead of just scrutinizing?
Get a program called RivaTuner and use it to overclock the core and memory clock of your GPU 5Mhz at a time. After each bump, check for any artifacts (white dots, or anything else you shouldnt be seeing.
BF2142 might use a lot of video card power, but those others dont.
personally, i dont suggest you overclock it unless you need to.
but, i prefer coolbits since i do need to for some games that i play.