Hi Guys, recently posted up a few threads about upgrading a 5970 and various options, first though I thought I'd have a crack at overclocking the card - However I've run into issues pretty much at the first hurdle.
I got myself the latest MSI Afterburner, upped a bit of voltage and upped the clock speeds by about 2% just as a start. Immediately after this I get weird things going on with my Eyefinity desktop, flickering etc. I removed the overclock and all is fine.
I thought about a few things, isn't there enough voltage? is it getting to hot? however I went back to the beginning and decided to increase the clock literally by as small amount as possible. Same thing?
I was wondering if anyone had any ideas on what might be causing this? If I'm doing anything wrong? or if simply my card is one of the few that doesn't like anything outside of it's own standard clock?
The current BIOS version on the card is: 012.013.000.002 - I'm wondering if there is a newer version available? and would it be worth flashing the BIOS?
Has anyone had similar issues when trying to overclock a 5970 when running Eyefinity monitors? (x3 24")
Finally I figured it out. The card seems to have a cold bug.
While lurking on about probably 30 forums, I saw a post that someone wrote:
Hi, Its called a cold bug. Open catalyst and create a slight overclock (5mhz) preset. Name the file and go to c:/users/username/appdata/local/ati/ace/profiles
there will be your created preset there. open it with notepad and change values 15700 which is a core speed when idle to 40000. also change mem speed from 30000 to 90000. save it and run preset from catalyst.
now when idle your core will be set tro 400 and mem to 900 and this should fix your cold bug.
I got home, tried it and BAM! worked! Now when I try to OC the card, it does downclock when idling, but not to the point when the screen begins to tear or have any issues.