VGA Value
Video Modes Each Represents
vga=769
640 × 480 × 256K
vga=771
800 × 600 × 256
vga=773
1024 × 768 × 256K
vga=784
640 × 480 × 32K
vga=785
640 × 480 × 64K
vga=787
800 × 600 × 32K
vga=788
800 × 600 × 64K
vga=790
1024 × 768 × 32K
vga=791
1024 × 768 × 64K