hello. im having computer problem and im hoping that i could get some HELP here after my friend found that my computer keeps switching itself off after 30-45 minutes of playing battlefield: bad company 2.

im using asus ai suite to help keep track of my temps.
Cpu temp before the new heatsink and fan was at 58C and after sits at about 46C during GP. the system is at about 70C and after around 57-60C

specs:
Windows vista home PREMIUM x64bit.
motherboard: asus p5kse.
ram: i think they are kingston 633mhz 4x 2gig total 8gig.
processor: intel Q6600 2.4ghz quadcore never overclocked.
GC: Zotac GTX 560ti Amp 1gig.
powersupply: deltaco model number: PSU-423 500watt

i have newly cleaned my computer, reapplyed new heatsink and installed a new 120mm noctua chassi fan to the side as intake, i have a ZALMAN FN CNPS9700LED CPU and MB Cooler i think its 100mm or 97mm and a small 80mm fan blowing air out of my chassi.

I've never had any problems with the old GC i had which was a nvidia hd3870 512mbit.
ive been think that it could be that my powersupply cant handle the new card because its minimum power req. is 500. . culd this be a problem. or if i should buy a new chassi and attach more fans, im thinking about water cooling but am unsure.

hope this information help. if you have any other questions you need in order to HOPEFULLY help me, just send me a message and ill try to help the BEST i can.

the computer is home built with the help of a friend. im fairly new to building computers and OS. but ill try my best to help.

cheers

and sorry i dont know what temp the grafics card is at. sorry, but it think hot. xD Given this "the new card because its minimum power req. is 500." if you have the ability without spending additional money at this point,i would try a higher rated PSU and see the result. The fact that you can play the game for a fairly extensive period but it eventually causes your issue tends to relate to rising heat issue. Unless it is the new card itself that has a problem that only arises after a period of use.truenorthi have considered that option for a while now. just needed to ask before i went out and bought a new PSU.

ill give it a try and see what happens.i have bought a 700watt PSU and it seems to have fixed the problem. the only problem i have now is that my Hard driver are hot as all *censored* but i think seperating them buy about 5cm and installing a 120mm fan should solve this problem. cheers again Well done. As you continue to deal with heat issues some other options re the HDDs is to consider an external or a SSD.truenorthtrue. cheers for the assist. peace out!