disable shared memory in gigabyte 990xa-ud3 rev3

storm166

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Jul 20, 2014
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Dear sir,
I have a problem with my motherboard Gigabyte model: 990xa-ud3 rev3. When I tried to add new graphic card model :SAPPHIRE HD 7970 OC 3 Gigabyte DDR5 it's shared with my PC total memory ram and I've got this message from my Computer properties Ram "8.00 GB 3.98 GB usable". It supposed to be not sharing with my total memory.

I tried a lot of solution to solve this problem but it didn't work. For example I update my BIOS and search for any option that belong to not sharing my Ram memory with a new graphic card but I didn't find anything. Also I tried to check the maximum memory from BOOT Advanced Option but the problem didn't solve.
I hope I find any answer that help me. Thanks for advanced.

Operating system : Windows 8.1 64x
Processor: FX6300
Total Ram : 8 GB