Technical Reference Guide
Compaq Deskpro Personal Computers
Third Edition - April 2001
6-7
6.3.1 DISPLAY MODES
The graphics modes supported by the NVIDIA controller are listed in Tables 6-3.
Table 6-3. NVIDIA TNT2 Pro Graphics Display Modes
Table 6-3.
NVIDIA TNT2 Pro Graphics Display Modes
Resolution  Bits per pixel  Color Depth     Max. Refresh Frequency (Hz) 
640 x 480  8  256    85 
640 x 480  16  65K    85 
640 x 480  24  16.7M    85 
800 x 600  8  256    85 
800 x 600  16  65K    85 
800 x 600  24  16.7M    85 
1024 x 768  8  256    85 
1024 x 768  16  65K    85 
1024 x 768   24  16.7M    85 
1152 x 864  8  256    85 
1152 x 864  16  65K    85 
1152 x 864  24  16.7M    85 
1280 x 1024  8  256    85 
1280 x 1024  16  65K    85 
1280 x 1024  24  16.7M    85 
1600 x 1200  8  256    85 
1600 x 1200  16  65K    85 
1600 x 1200  24  16.7M    85 
1800 x 1440  8  256    85 
1800 x 1440  16  65K    85 
1800 x 1440  24  16.7M    85 
1920 x 1080  8  256    85 
1920 x 1080  16  65K    85 
1920 x 1080  24  16.7M    85 
1920 x 1200  8  256    75 
 
6.3.2 NVIDIA GRAPHICS PROGRAMMING
The NVIDIA graphics controller is configured through PCI configuration registers and controlled
through memory-mapped registers by an appropriate software driver.
 
6.3.3 NVIDIA GRAPHICS UPGRADING
The method of upgrading the NVIDIA graphics controller is determined by the system type.
Compaq Deskpro EN Small Form Factor: No AGP slot is provided for upgrading the NVIDIA
graphics on Deskpro EN SFF models, which have the NVIDIA graphics controller embedded on
the system board. Since PCI graphics adapters are generally considered inferior to AGP types, a
true "upgrade" is not possible on these systems. However, dual-monitor support is possible by
adding a PCI-type graphics card.
Compaq Deskpro EN Slim Desktop/Configurable Minitower: Upgrading the AGP graphics is
facilitated by replacing the existing nVIDIA graphics card with another AGP graphics adapter
card. During POST, the BIOS will detect the presence of the AGP graphics adapter in the AGP
slot and inhibit the integrated controller of the 82815 GMCH. Dual monitor support is possible by
adding a PCI graphics card.