I am using 3 x 128 Meg Apacer VC Ram. My system was 100% stabil with Fastwrite, AGP4X, Optimal and PNP OS enabled.
Byte merge, Delay transaction, USB and COM port 2 disabled.
I just install Win2k normally, Press F6 when it begin and when it ask for the Add on Controller Driver, i put a floppy disk with the Promise ATA100 Controller driver. I Use Win2K setup to format and partition the drive ( I only make one 4 Gig Partition to install WIN2K then partition the rest of the disk in Win2K's Disk Manager after the installation).
Bios 1004D is fine for me, my board is a Rev 1.02 board and i think it come with 1004C bios. Infact i dont have any problem with both Bios.
Lately i installed DX8 and use the Beta 7.17 Det driver and 3DMark2000 1.1 improved about 1500 Points and compare to DX7 + Det 6.31. I never had a single crash for all my favourite games like Q3, UT, StarCraft, AOK and Diablo II.
For 3DMark2000 u must use the ver. 1.1 as it is WIN2K compatible. For the older version about 3/4 it will crash back to Desktop.
I had my SBLive player in PCI slot 3 and 3Com905B Nic in slot 5 (the last slot). I disable all power management and powerup (except from SpaceBar) option in Bios.
Another thing to mention is the power regulator of A7V is really hot and infact i had my case open and use a 120mm fan to blow to the MB.
I hope this could help.