Neither board is listed as supported for multiple displays by Microsoft in http://support.microsoft.com/support/kb/articles/Q182/7/08.ASP?LN=EN-US&SD=gn&FR=0, but there is probably a good chance that they will work anyway. The manufactures say this:
3DF Voodoo Banshee…
“Yes, but your other 2D cards in the system must also support multi-monitor. In addition, we cannot guarantee that Voodoo Banshee will work with all other 2D cards and their associated drivers.
Voodoo Banshee PCI can function with other Voodoo Banshee PCI boards. Voodoo Banshee PCI cannot function when a Voodoo Banshee AGP is also on the system. This is a software issue that will be addressed in a future update to the Voodoo Banshee drivers.”
“- Yes, Matrox currently supports multiple monitor setups under Windows 98 and Windows NT 4.0, provided you have multiple monitor drivers installed for your graphics cards. For Matrox graphics cards in Windows 98 you will need driver version 4.xx or later, and in Windows NT you will need driver version 3.68 or later.
- Matrox also has specific graphics cards that support more than one monitor on the same card – see our Products section for more information.
- The Rainbow Runner and Marvel G200 video capturing/editing features are currently not supported in multiple monitor mode.
- For multiple monitor setups in Windows NT4, all of the graphics cards used must be Matrox graphics cards provided that the cards have a common driver available (example : both cards can use the 4.22 drivers…)”
Try it and let us know, ok. Larry