
SW8,SW7	number of 5.25" drives
0,0	1 drive
0,1	2 drives
1,0	3 drives
1,1	4 drives

SW6,SW5	type of display
0,0	reserved
0,1	40x25 color (mono mode)
1,0	80x25 color (mono mode)
1,1	mono 80x25

SW4,SW3	amount of memory on system board
	64k chips	256k chips
0,0	64k		256k
0,1	128k		512k
1,0	192k		576k
1,1	256k		640k