IBM 2140 Personal Computer User Manual


 
Refresh Rates and Monitor Frequencies
This section provides the refresh rates and monitor frequencies for Type A-1
and Type A-2 system boards.
Refresh Rates and Monitor Frequencies—Type A-1
The following table lists the maximum vertical refresh rates for the Type A-1
system board, which contains a Trident 9750 video chip with 2 MB video
memory
Refresh Rates and Monitor Frequencies—Type A-2
The following table lists the maximum vertical refresh rates for the Type A-2
system board, which contains a ATI-Rage Pro video chip with 2 MB DRAM.
Table 1-2. Vertical Refresh Rates (Hz)
Type A-1 System Board with a Trident 9750 Video Chip with 2 MB DRAM
Resolution 640x480 800x600 1024x768 1280x1024
Color
256 85 Hz. 85 Hz. 85 Hz. 60 Hz.
64,000 85 Hz. 85 Hz. 85 Hz. 60 Hz.
16,000,000 85 Hz. 85 Hz. 85 Hz. 60 Hz.
Table 1-3. Maximum Vertical Refresh Rates (Hz)
Type A-2 System Board with a ATI-Rage Pro Video Chip with 2 MB DRAM
Resolution 640x480 800x600 1024x768 1280x1024
Color
256 85 Hz. 85 Hz. 85 Hz. 75 Hz.
64,000 85 Hz. 85 Hz. 85 Hz. 75 Hz.
16,000,000 85 Hz. 85 Hz. 85 Hz. 75 Hz.
General Information 1-13