- Nov 28, 2007
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Ok, so I guess that my computer started hating me. First my cpu doesn't like being stable at 4 ghz and now the card doesn't like oc'ing anymore.
I have my Sapphire 4870 since September, if I remember correctly. After I messed with the fan, I overclocked it. It was perfectly stable at 830 mhz since day one. Passed hours and hours of ATI artifact test, Crysis and played other games with no problems. The ram, on the other hand, was a tough nut to crack. I first thought it was stable at 3,9 ghz, but it wasn't. Worked fine for almost 3 weeks at 3,8 ghz, but a gray screen in BIA changed my opinion. Then I went another 100 mhz lower and now ATI tool gives me artifacts at 3,7 ghz. What the hell??
The core also became unstable at 830 mhz with ATI tool. I backed it to 815 mhz and seems to work fine. But why?? My card never went over 60 C under load ( fan at 50% ) and the mem stayed around 65 C. I just don't understand why did the memory became unoverclockable. And why the hell did I loose those 15mhz on the core? Has anyone encountered something similar to this?
I have my Sapphire 4870 since September, if I remember correctly. After I messed with the fan, I overclocked it. It was perfectly stable at 830 mhz since day one. Passed hours and hours of ATI artifact test, Crysis and played other games with no problems. The ram, on the other hand, was a tough nut to crack. I first thought it was stable at 3,9 ghz, but it wasn't. Worked fine for almost 3 weeks at 3,8 ghz, but a gray screen in BIA changed my opinion. Then I went another 100 mhz lower and now ATI tool gives me artifacts at 3,7 ghz. What the hell??
The core also became unstable at 830 mhz with ATI tool. I backed it to 815 mhz and seems to work fine. But why?? My card never went over 60 C under load ( fan at 50% ) and the mem stayed around 65 C. I just don't understand why did the memory became unoverclockable. And why the hell did I loose those 15mhz on the core? Has anyone encountered something similar to this?