Gigabyte GA-965G-DS3 User Manual page 36

Onboard VGA
Enable If No Ext PEG
Output from the onboard GPU when no PCI Express VGA card is installed. (Default value)
Always Enable
Always output from the onboard GPU.
On-Chip Frame Buffer Size
8MB Set on-chip frame buffer size to 8MB. (Default value)
1MB Set on-chip frame buffer size to 1MB.
GA-965G-DS3 Motherboard - 36 -