3 way sli 280gtx memory issue

[alanwest09872]

ok under my dxdiag it states I only have 490mb of ram for video. I have about 3g installed with all 3 280. My games have been crashing I cant even run zoo tycoon 2. It states I dont have enough memory. My motherboard ram is 12g with ddr3.

I have tried both 3 sli on and off and it still happens. Anyone have any ideas to make this work. I would really appreciate the help

 

[thilanliyan]

Are you running a x64 version of Windows? Oh and you only have 1GB of video memory....not 3GB since the memory is not shared (the data is just duplicated on each card).

 

[alanwest09872]

It was the driver. I just did an older one and it workds. Under dxdiag it says I have 3056 mb of ram does that mean its 3g or is it 1g. I'm not talking motherboard ram im talking video ram

 

[MrK6]

Originally posted by: alanwest09872
It was the driver. I just did an older one and it workds. Under dxdiag it says I have 3056 mb of ram does that mean its 3g or is it 1g. I'm not talking motherboard ram im talking video ram

You physically have 1024MB of memory on each card, for a total of 3072MB. However, due to the way SLI works, data is mirrored across the SLI set-up, so effectively you only have 1024MB of usable RAM.