bro...i try to answer ur questions k...honestly...hehe...
Question:1. all games makes ur system crash/hang?.. or only happen to certain game?
**it happens in all games...warcraft...NFS Carbon...CNC...and other games in my comp...
2. estimated how long it will crash/hang after u started the game?.. random crash?
**ramdom...sometimes 5,10 or 15 minutes. but averagely...not more then 10 minutes...got stuck already...
3. possible to recover to windows?.. or need to force reset the whole system?
**i need to reset my cpu power...because i cant do anything...the whole system not functioning...the monitot didnt off...but it stuck with its final display...if play warcraft...then the monitor will display the last image before it gets stuck...then, the whole system not functioning...mouse, keyboard...so on...
4. the crash/hang is suddently or ur game start slowing down and getting slower and slower and in the end crash/hang?
**hang suddently...there's no signal its slowing down...hang suddently...
5. how much is ur power supply power?.... Brand?
**cooler master...430w i think...
6. List down ur full system hardware specification
**my hardware? as i remember...pentium 2.8ghz...2x512 mb ram (ddr 400)...160G+80G sata harddisk...samsung DVDrw...7900gs agp...hehe...then? thats all i remember...
u can try the following but its not a confirm solution to solve ur problem:-I. fully uninstall(with driver sweeper) ur GC driver & install the latest and 1 version before latest (latest not always the best).... if possible, then also try to test driver from both nvidia and ur GC manufacturer(asus,MSI,XFX & etc)....
**i done this steps already this morning....but, the problem still exist...
II. latest directx 9.0c (september i think).. can get from www.filehippo.com
**not download yet...but at the website...the directx version is aug 07 only...no september...
III. try to check that ur GC and the rest of ur system hardware is not too hot when u start playing games....(software such as rivatuner, everest, & etc might provide help in temperature monitoring)
**i dont know how to used the rivatuner, everest and all those thing...mind if u can help me with that?
IV. maybe not enuf power... can try to plug out afew hardware power such as ROMS, Fans, HDD(if have 2)... to check not enuf power issue
**i done this steps...i unplugged the dvd & my 80g harddisk...just use the power for the motherboard, graphic card and my 160g harddisk...but, still hang...
V. make sure ur system is not overclocked.... u can try reset ur BIOS and set it default after that....
**no...i dont like overclocking my comp...just like and ordinary comp...
fuhh...lots of questions u gave me...i hope u can help me with my problem...i cant stand and i dont know what to do now...thanks for all ur questions bro...nice reading ur ideas...it sound experts...