Why is my 4870 1bg always crash

[Guest]

i have a AMD Phenom II X4 945 3.00GHz
4Gb ram
MOTHERBOARD ASUS M4N72-E
Power supply 650w toughpower
4870 1gb dark knight

When the graphic card is heated at 83C the screen of my monitor turn to blank and i must restart my computer .I never had problems with the nvidia GPUs please can anyone tell me a solution

 

[stridervm]

If you really think that it's the temperature that's causing the problem, try downloading Rivatuner, than setting the fan 100% thru that and then try again.

 

[Guest]

i tried but it didnt work

 

[obsidian86]

how is the voltage drop on your power supply under load?

 

[Guest]

what do you mean you mean
?

sorry that i dont understand

 

[vvhocare5]

You can also start CCC - go to Overdrive, click the Lock and then set your fan to 100%

Yes you need your driver to use 3d and other features of your card

You could try placing a fan in the case or leaving the side panel off to also see if that helps to lower temps.