AM-740 Memory card Settings and Configuration

Card Type	Memory
Maximum Onboard Memory	128MB
I/O Options	Board connector (1)
Data Bus	VMEbus

CONNECTIONS
Purpose	Location	Purpose	Location
Board connector	CN1	VMEbus	CN3
Parity status LED	CN2	VMEbus	CN4

DRAM CONFIGURATION

Note: The size and number of chips are unidentified. This memory board will be factory installed with 4MB, 8MB or 12MB.

BASE MEMORY SELECTION
Size	W8
None	1 & 2, 3 & 4, 5 & 6, 7 & 8, 9 & 10, 11 & 12, 13 & 14, 15 & 16
4MB	Open
8MB	1 & 2
12MB	3 & 4
16MB	1 & 2, 3 & 4
20MB	5 & 6
24MB	1 & 2, 5 & 6
28MB	3 & 4, 5 & 6
32MB	1 & 2, 3 & 4, 5 & 6
36MB	7 & 8
40MB	1 & 2, 7 & 8
44MB	3 & 4, 7 & 8
48MB	1 & 2, 3 & 4, 7 & 8
52MB	5 & 6, 7 & 8
56MB	1 & 2, 5 & 6, 7 & 8
60MB	3 & 4, 5 & 6, 7 & 8
64MB	1 & 2, 3 & 4, 5 & 6, 7 & 8
68MB	9 & 10
72MB	1 & 2, 9 & 10
76MB	3 & 4, 9 & 10
80MB	1 & 2, 3 & 4, 9 & 10
84MB	5 & 6, 9 & 10
88MB	1 & 2, 5 & 6, 9 & 10
92MB	3 & 4, 5 & 6, 9 & 10
96MB	1 & 2, 3 & 4, 5 & 6, 9 & 10
100MB	7 & 8, 9 & 10
104MB	1 & 2, 7 & 8, 9 & 10
108MB	3 & 4, 7 & 8, 9 & 10
112MB	1 & 2, 3 & 4, 7 & 8, 9 & 10
116MB	5 & 6, 7 & 8, 9 & 10
120MB	1 & 2, 5 & 6, 7 & 8, 9 & 10
124MB	3 & 4, 5 & 6, 7 & 8, 9 & 10
128MB	1 & 2, 3 & 4, 5 & 6, 7 & 8, 9 & 10
Note: If this memory board is used with an AM-175 CPU board (AM-1500 series), W8 must be set as follows: Pins 11 & 12, 13 & 14, 15 & 16 closed. If the AM-1500 is used, only 16MB are available. Any memory above 16MB will be automatically disabled. Before this board can be installed in an AM-1500, a 4MB memory board must be installed. Pins designated should be in the closed position.

TIMING DETECTION SELECTION
CPU board used	W7
AM-175	Pins 2 & 4 closed
AM-180	Pins 2 & 4 closed
AM-185	Open
AM-185 (50)	Pins 1 & 3, 2 & 4 closed