Ok hey guys I found interesting discovery. When I have my q6600@3.4ghz and my 4850@ 690/1163 I get screen artifacts. I thought to myself damn maybe I need to voltmod my card or something haha.
I went to bios and set my ocerclock to default, my q6600 is running at stock speeds ice cold and with 4850 @ 690/1163 I have no artifacts. I'm guessing the overclocked quadcore takes a lot of power not leaving enough for the card to run stable at those high clocks. When I have my quad oced to 3.4ghz I can go 650/1100 (+25 on core +115 on memory).
I went to bios and set my ocerclock to default, my q6600 is running at stock speeds ice cold and with 4850 @ 690/1163 I have no artifacts. I'm guessing the overclocked quadcore takes a lot of power not leaving enough for the card to run stable at those high clocks. When I have my quad oced to 3.4ghz I can go 650/1100 (+25 on core +115 on memory).