Configuring video adapters

Understanding resolutions

Some resolutions only work if you have enough video adapter memory. Make sure you have at least the minimum DRAM or VRAM to support the desired number of colors at the specified resolution:

Memory requirements for color support at specified resolutions

Resolutions Colors

16 256 32K/64K 16M 16M

(4 bits) (8 bits) (15/16 bits) (24 bits) (32 bits)

1600x1200 N/A 2MB 4MB 6MB 8MB

1280x1024 1MB 2MB 4MB 4MB 6MB

1024x768 .5MB 1MB 2MB 4MB 4MB

800x600 .5MB .5MB 1MB 2MB 2MB

640x480 .5MB .5MB 1MB 1MB 2MB

Resolutions	Colors
	16	256	32K/64K	16M	16M
	(4 bits)	(8 bits)	(15/16 bits)	(24 bits)	(32 bits)
1600x1200	N/A	2MB	4MB	6MB	8MB
1280x1024	1MB	2MB	4MB	4MB	6MB
1024x768	.5MB	1MB	2MB	4MB	4MB
800x600	.5MB	.5MB	1MB	2MB	2MB
640x480	.5MB	.5MB	1MB	1MB	2MB

NOTE: Some drivers may require memory above these minimum levels for off-screen memory.

Refer to your video adapter documentation for additional information on memory requirements.

If you select resolutions of 1024x768 or higher, you may need to determine if your monitor works in interlaced or non-interlaced mode at these resolutions. Consult your monitor's documentation for information regarding supported resolutions.

WARNING: Although your video adapter supports the resolutions listed, your monitor may not. Do not select a resolution that is higher than the maximum resolution supported by your monitor. Selecting a resolution that is too high can cause double or jumbled images to display on the monitor; it can also severely damage your non-multi-synch monitor. If this occurs, try selecting a lower resolution or a lower scan rate frequency.