Answer
Please access “Advanced Chipset Setup” of the CMOS setup to set “Share Memory” item, if the item is set to “Auto”, Share Memory Size can be controlled according to the DRAM size. When the DRAM size is less than 512MB, Share Memory Size should be set to 64MB, while between 512MB and 1GB, it should be set to 128MB, when more than 1GB, it should be set to 256MB. When installing external PCI-Express graphics card, the system will not use Share Memory from DRAM.
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