Yikes - that doesn't look good. Maybe you can try cleaning it and the area, also inspect closely on both sides of the ram board, including any pins & connectors. Try to clean between the ic legs also. Is that stuff from a battery that leaked?
I don't have the drawings for your mpu board, and I can't read the part number on the top of the chips, but I'll take a shot at saying the CMOS RAM chip is the larger chip located near the battery, and the other smaller chip is an ordinary logic gate that is part of the CMOS RAM circuitry. Unless someone more familiar with the Fortune II says otherwise I'd be inclined to remove that CMOS piggy-back board and clean it well, including the pins that connect it to the main mpu logic board. Also I'd make sure the battery is good, then I'd reinstall it and see what happens.