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PCServer704 - 640x480x256 limitation with 512KB video DRAM under Warp Server SMP

Applicable to: World-Wide

Symptom:

With 512KB, you should be able to get the following video resolutions, as per the PC Server 704 Reference Manual:

Screen resolutions with 512 KB of video DRAM:
- 640 x 480 pels with up to 256 colors
- 800 x 600 pels with up to 256 colors
- 1024 x 768 pels with up to 16 colors

Screen resolutions with 1 MB of video DRAM:
- 1280 x 1024 with up to 16 colors
- 1024 x 768 with up to 256 colors

When you install Warp Server SMP, you can only get 640x480x256 .

Resolution:

OS/2 video will only support 640x480x256 color mode on a video card with 512k of video memory. This is by design. According to the various methods of calculation, higher resolution is obtainable with 512k, but the OS/2 video driver set is only written to yield 640x480 with this configuration. Any higher resolution/colors mode will require a minimum of 1 MB of video memory.

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Hint Category

Video

Date Created

02-09-97

Last Updated

15-05-98

Revision Date

14-05-99

Brand

IBM PC Server

Product Family

PC Server 704

Machine Type

8650

Model

4M0

TypeModel

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