I have two ATI HD3870 video cards, both have 512 of ram, and my system originally can with Vista. As soon as Win 7 came out I installed Win 7 and got the latest and recommended video drivers for my graphic cards.
When I run a diagnostic on the cards it tells me that One of the cards is a master card and the othe is a slave. I am supposed to be running at 1GB GPU speed, however when I run more benchmarking tests, It tells me that I only have 512 ram installed?
I recently found this out the hard way when I tried to run Battlefield 3, Can you please tell me how I can get these cards to run together.
Thanks for your help in advance!
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When you have two cards in CF (or SLI), the RAM doesn't not get added together like that. You are only supposed to have 512mb of effective ram.