Does two banks = 90 Mhz??
Diamond Monster Board says it uses 25 ns EDO DRAM (fast page mode)
- 25 ns => 40 Mhz, 2 banks => 80Mhz, close enough?
- Other option would be 4 rows (48 chips) - too many devices, odd memory size?
On the web, found picture of 8 MB board which had 12 DRAM chips on one side, other side not shown.
- 8 MB => 64Mb/4Mb = 16 chips (did other side of board contain 4 chips??)