Compaq Deskpro Workstation AP230 - Display Modes; Memory Management

Chapter 6 Embedded Graphics Subsystems
Compaq Deskpro Personal Computers
Third Edition - April 2001
6-4
6.2.2 DISPLAY MODES
The Intel graphics controller supports the following 2D display modes:
Table 6-1. 815E-Based Graphics Display Modes
Table 6-1.
815E-Based Graphics Display Modes
Resolution Bits per pixel Color Depth Refresh Rate
640 x 480 8 256 60, 70, 72, 75, 85
640 x 480 16 65K 60, 70, 72, 75, 85
640 x 480 24 16.7M 60, 70, 72, 75, 85
720 x 480 8 256 75, 85
720 x 480 16 65K 75, 85
720 x 480 24 16.7M 75, 85
720 x 576 8 256 60, 75, 85
720 x 576 16 65K 60, 75, 85
720 x 576 24 16.7M 60, 75, 85
800 x 600 8 256 60, 70, 72, 75, 85
800 x 600 16 65K 60, 70, 72, 75, 85
800 x 600 24 16.7M 60, 70, 72, 75, 85
1024 x 768 8 256 60, 70, 72, 75, 85
1024 x 768 16 65K 60, 70, 72, 75, 85
1024 x 768 24 16.7M 60, 70, 72, 75, 85
1152 x 864 8 256 60, 70, 72, 75, 85
1152 x 864 16 65K 60, 70, 72, 75, 85
1152 x 864 24 16.7M 60, 70, 72, 75, 85
1280 x 720 8 256 60, 75, 85
1280 x 720 16 65K 60, 75, 85
1280 x 720 24 16.7M 60, 75, 85
1280 x 960 8 256 60, 75, 85
1280 x 960 16 65K 60, 75, 85
1280 x 960 24 16.7M 60, 75, 85
1280 x 1024 8 256 60, 70, 72, 75, 85
1280 x 1024 16 65K 60, 70, 72, 75, 85
1280 x 1024 24 16.7M 60, 70, 75, 85
1600 x 900 8 256 60, 75, 85
1600 x 900 16 65K 60, 75, 85
1600 x 1200 8 256 60, 70, 72, 75, 85
6.2.3 MEMORY MANAGEMENT
The 815E-based graphics controller uses a specific amount of system memory allocated as
follows:
Video BIOS – 512 or 1024 kilobytes. An OS report of available system memory will be the total
amount installed LESS this amount.
Graphics Memory – Prior to the PV 4.x driver being loaded, the graphics memory will be one
megabyte for supporting standard VGA modes. After driver load, memory allocation will be set
by the Dynamic Video Memory Technology (DVMT) for rendering, Z-buffering, and displaying
according to need and total system memory availablility. Assuming the presence of 4 megabytes
of display cache (standard on these systems) the following amounts will be allocated:
♦ w/Windows 98 and 32 megabytes of system memory – 9 megabytes
♦ w/Windows 98, NT 4.0, or 2000 and 64/128 megabytes of system memory – 12 megabytes