Installation guide

Memory Locations and Replacement Procedures
B-12 Mode Switch Bank Settings and Optional Installations
Removing the DRAM SIMM
To remove the existing DRAM SIMM, proceed as follows:
1. Locate the DRAM SIMM connector on the main PC board. Refer back to Figure B-5 for
the DRAM SIMM location on either the 4H4282-49 or 4H4283-49. Refer back to
Figure B-6 for the location on the 4H4203-72.
2. Push the connector arms away from the DRAM SIMM, as shown in Figure B-13, and
simultaneously lift the DRAM SIMM enough to release it from the connector fingers.
3. Rotate the DRAM SIMM upwards, then remove it from the connector fingers.
Installing the DRAM SIMM
To install a DRAM SIMM, refer to Figure B-14 and proceed as follows:
1. Insert the DRAM SIMM down between the connector fingers.
2. Pivot the DRAM SIMM downward so the tabs on the connector arms align with the
two DRAM SIMM alignment notches. With the two connector arms spread outward,
push the DRAM SIMM down between the connector arms. Then release the two
connector arms to lock the DRAM SIMM into place.
Caution: Observe all antistatic precautions when handling sensitive electronic equipment.
Figure B-13 Removing the Existing DRAM SIMM
1 Connector arms 2 DRAM SIMM 3 Connector fingers
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Caution: Observe all antistatic precautions when handling sensitive electronic equipment.