Alpha Microsystems AM-6060 Service Manual download pdf (Page 16)

AM-6060 Service Manual Page 13

Rev. A00

To install memory expansion SIMMs on the AM-176 board, use this procedure:

1. Memory SIMMs must be installed in pairs of equal capacity.

2. Always install the SIMMs of largest capacity first.

3. Always install the first pair of SIMM modules at Bank0. Use Bank1 for a second pair of SIMM

modules.

4. Insert the first SIMM in connector J2. Align pin 1 at the notched end of the SIMM module with

pin 1 on the connector, as shown in Figure 9.

5. Insert the SIMM module into the connector at a slight angle.

6. Rotate into the upright position.

The SIMM will engage the retainer clips and click into position, locking the SIMM in place.

7. Repeat steps 4 through 6 for the second SIMM, at connector J4. If you are using a second pair of

SIMMs, insert them into J3 and J5 using the same procedure.

Setting Memory Jumpers

After installing the SIMMs, set the jumpers at location JP4 on the AM-176 board according to Table 2,

below. Again, only some configurations above 256MB are shown. As you turn on the computer, AMOS

will automatically make the memory available. See Figure 5 for the location of the JP4 jumpers.

BANK 0 BANK 1

JP4

Position

321321

Figure 10: JP4 Memory Jumpers

1 2 ... 11 12 13 14 15 16 17 18 19

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Alpha Microsystems AM-6060 Service Manual Page 16