quad sli with gtx 690 not working

Posted by Moaadh on Super User See other posts from Super User or by Moaadh
Published on 2012-08-11T13:11:41Z Indexed on 2012/12/18 23:05 UTC
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Filed under:

memory

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graphics

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vga

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sli

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core

I have two cards GTX 690 (dual core). I did the Sli successfully. Nvidia control panel acknowledges the two cards as quad Sli.

However, the problem is that Windows 7 64-bit Ultimate is showing me the graph memory size as 4 GB while it is supposed to be 8 GB because of the Sli. Also the benchmark from all software is giving me a very low score compared to some other guy's benchmark on YouTube.

It gives me a big headache. Does anyone know why this is happening? If so, how can I get Windows 7 to recognize all 8 GB of memory?

Thanks for your help in advance.

My computer specifications:

(Processor: Intel Core i7-3930k @3.2GHz(12CPUs))---

(Memory: 65536 MB Ram 1866 MHz)--

(OS: Windows 7 Ultimate 64-bit)--

(OCZ 240GB as SSD PCIe drive for booting and storage disk)--

(DirextX version: DirectX 11)--

(VGA Card: 2 X EVGA GTX 690 Dual GPU. Each GPU is 2 GB, so total memory should be 8 GB.)--

(MotherBoard: ASUS Rampage IV Extreme)--

Others with lesser specifications get a 2500 score in heaven benchmark while I get 1501 as if it is one card.

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