bingo...now we see the problem...you should monitor ur GPU heat...that's the culprit...from what i heard from forumer here is...GPU too hot and burn off some components on the mobo that caused that...so u might wan to send back to service center for a new mobo...nothing to do with RAM nor HDD.
I understand ur point, infact, i do...

but my point here is...i want my proc to be able to set it to use 800Mhz only...now my proc is running like u said, power down when idle and power up when load more stuffs...im using xp by the way, and last time i cant set it to only 800mhz after i get my lappy back from service center,(duno what the engineer did to my lappy).....so now after i format, i cant set it anymore. so i suspect it's a software problem, not har5dware, coz hardware definitely support...

i already install that 1.3.2.0053 already still no effect...please help