Nvidia 8600 GT overheat and fan adjust help

[mRt0x1c]

Hello i wanted to ask about my ASUS NVIDIA 8600GT and its overheating problems.
Its the 512 mb of ram ddr2 version.I have Winodws 7 ultimate aero theme on and when i try to run games like Wow my game loads and screens goes like blue and nothing happening no sound.Im using the 280 version drivers from nvidia.my pc specs are:
amd 4000+ 2.1ghz
3gb ram ddr2 800 mhz
ASUS NVIDIA 8600GT
300W psu working fine tryed with the gt220 works fine but i had to give it back to my friend
This thing has never happened to me before.
My temp goes 70C at desktop and like 80 at games on high and i know this card can handle temps more then 100C so what is the issue and im not using the silent version and im using default passive cooler
And i havent overclocked it and will it help if i reduce the shader,memory,core speed and increase the fan speed by about 200 mhz
help pls and anser and fell free to post what you think about that

 

[GreenDutchAlien]

Did you clean it and the rest of the pc allready ?

 

[mRt0x1c]

Did you clean it and the rest of the pc allready ?

pc is clean a wistle i clean it once evry 2 days

 

[Jurgens]

the heatsink is most probally lose. check the fan and heatsink. remove it and clean it, put new thermal paste on it and put it back.

 

[mRt0x1c]

ok i will try but i will the tempeture be lower if i lower the memory clock and shader clock and core clock and increase the fan speed anser pls

 

[cska]

if u overclock ur card ,raise the core clock temp will raise too if u underclock it i think temp will go down a bit.if u cant do anything about it 70 C is not that much its not 100C.
i have 8600 gt silent beastly overclocking card some 300 mhz i used it as physx card and gt 440 as main card to play mafia 2,benchmark shows nothing ,no fps raise, zero!! after hour of playing i decided to check the load of the 8600 gt and temp.20-30% load max and thts like once in 10 mins when smthing explodes the temp was 110C crazy

 

[mRt0x1c]

dud what you need to is turn off the damn integrated chip and if your psu is 300W or less then i could be that and i wouldnt recomend overlocking any nvidia 8-series card beacause how can i say this,oh yes anything higher then their defaul clocks is just pure crap and kills the video card

 

[mRt0x1c]

weel after seeing some pictures it is clear that my EN8500GT has the default cooler so i will try to resolve the problem and let you know as soon as my new mobo arives casue im using the intel gma 3150 mobo with no pci-e slot so i will have to whait for a few days