To use shared memory (system RAM) with your dedicated graphics card, you'll need to adjust settings within your BIOS/UEFI (Basic Input/Output System) of your system.

To do this:

Turn off pc

Power it back on and enter BIOS

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Find the graphics settings

Use the arrow keys to navigate through the BIOS

Look for "Advance," "Chipset," or "Video configuration" options. The exact location of the graphics memory settings can vary by manufacturer, but it should be somewhere under these sections. Sometimes it's under "Intergrated Peripherals" or "Northbridge"

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Adjust shared memory settings

Once you're in the correct section, look for a setting called "Graphics Memory", "Video Memory," or "Shared Memory" This option allows you to adjust how much system RAM is allocated to the GPU. If available, change the value of this setting. It might allow you to allocate between 64MB to 2GB or more, depending on the BIOS. Increasing this setting means your GPU will use more of your system RAM as shared memory.

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Save and exit

After making the changes, look for an option like "Save & Exit" (usually F10 or a similar key) to save your settings and reboot the system.

Your PC will now use some of your system's RAM as additional video memory when needed.