It seems that the Gateway download links are no longer functional and wayback doesn't have this BIOS archived, so I am including the latest BIOS here. The latest BIOS is the A00SNP06.ROM, but I have also included the previous version A00SNP05.ROM.
This system is known by a couple names:
Gateway 2000 Kadoka
Gateway KAD Select 750. The '750' can be substituted for 600, 650, 700, 750, 800, or 850.
My particular system has the Thunderbird 750 MHz chip. I'm hoping that 1 GHz Orion or Thunderbird CPUs will run on this board with 750 MB of ECC RAM. The main drawback of the board is the missing ISA slots, but you can fit just about any ATX Irongate in the case. I like to keep OEM boards in OEM cases though.
If anyone has the official Gateway manual for this particular board, would you be kind enough to post it?
Plan your life wisely, you'll be dead before you know it.