Windows 7: Sapphire Radeon HD 5770 issue

so, i have a sapphire HD 5770 a little over a yr now and recently it started giving problems and now it does not wrk most of the time. what happens is that when the computer is turned on the card starts up (the lights on the back of the card light up green and soon after they start to flicker and turn off and the fan spins really fast and loud as if there is no six pin power connector in the card. i gave it to a friend to check it for me and it wrked in his system for about 4 days str8 the started to chip off ...... plz help me if u cud

Hi.

If the gpu is dying we cant do much.


Though we can try.


Clean everything inside the case with blower or air spray can.


Run Windows Experience Index - Update or Refresh Score


Then stress\check test your graphic card with NVIDIA/AMD Video Card - Test with OCCT and post here the results.

Question: Is it hot to the touch when it's acting up. If so, two possibilities. First is the onboard memory is bad or going bad, it can happen due to over heating. Second is overheating caused by air flow blockage of the heatsink inside the GPU and dirty fan.

If you not too apprehensive, take out the GPU and take it apart and check out the inside of the unit. Then with it completely broke down, give a thorough cleaning and reapplying thermal-paste to the chipset. It's a great learning experience.

yea i'll do that!