ATI Technologies 100-505181 - FireGL 256 MB PCI-Express Card User Manual page 51

Data width
Connectors
H/V Sync
output signals
FireGL card
addresses
256 bit - graphics core
256-bit memory interface
2x DVI-I output connectors:
analog and digital output, female
Separate horizontal and vertical sync at
TTL levels
The FireGL card is 100% IBM VGA
compatible and occupies the same
memory area and specific addresses in
the I/O range. The memory range above
1 MB is automatically assigned through
the PCI BIOS interface
I/O addresses: 3B0 - 3DF
(Standard VGA I/O)
Video RAM: A000-BFFF
Video ROM: C000-C7FF
Reference 47