ADLINK cPCI-6520 - Manual (Page 107)

BIOS Setup 95
cPCI-6520
Graphics Configuration
Primary Display
Select which graphics device should be the primary display.
Set this value to Auto, IGFX, PCI.
Internal Graphics
Keep IGD enabled based on the setup options. Set this value
to Auto, Enabled, Disabled.
GTT Size
Select the GTT size. Set this value to 1MB, 2MB.
Aperture Size
Select the aperture size. Set this value to 128MB, 256MB,
512MB.