Enterprise-III EISA VLB Motherboard User's Guide
49
Step 3 Install Memory
The main memory on the Enterprise-III EISA motherboard consists of four 32-bit memory banks of four SIMM sockets
each. The SIMM sockets accept 256 KB x 9, 1 MB x 9, 4 MB x 9, or 16 MB x 9 SIMMs in the combinations shown
below.
If used, SIMM banks must be completely filled, no matter which type of SIMMs are used. All SIMMs in a bank must be
the same type.
For system memory, fast page mode access and hidden refresh is supported. Burst support is provided.
Possible Memory Configurations
Bank0
Bank1
Bank2
Bank3
Total RAM
256 KB x 9
None
None
None
1 MB
256 KB x 9
256 KB x 9
None
None
2 MB
1 MB x 9
None
None
None
4 MB
256 KB x 9
256 KB x 9
1 MB x 9
None
6 MB
1 MB x 9
1 MB x 9
None
None
8 MB
256 KB x 9
256 KB x 9
1 MB x 9
1 MB x 9
10 MB
1 MB x 9
1 MB x 9
1 MB x 9
None
12 MB
1 MB x 9
1 MB x 9
1 MB x 9
1 MB x 9
16 MB
4 MB x 9
None
None
None
16 MB
256 KB x 9
256 KB x 9
4 MB x 9
None
18 MB
1 MB x 9
4 MB x 9
None
None
20 MB
1 MB x 9
1 MB x 9
4 MB x 9
None
24 MB
4 MB x 9
4 MB x 9
None
None
32 MB
1 MB x 9
4 MB x 9
4 MB x 9
None
36 MB
1 MB x 9
1 MB x 9
4 MB x 9
4 MB x 9
40 MB
4 MB x 9
4 MB x 9
4 MB x 9
None
48 MB
4 MB x 9
4 MB x 9
4 MB x 9
4 MB x 9
64 MB
16 MB x 9
None
None
None
64 MB
16 MB x 9
16 MB x 9
None
None
128 MB
16 MB x 9
16 MB x 9
16 MB x 9
None
192 MB
16 MB x 9
16 MB x 9
16 MB x 9
16 MB x 9
256 MB