Memory Configurations; Section A.2, "Memory Configurations - Sun Microsystems Ultra 20 M2 Service Manual

A.2

Memory Configurations

TABLE A-2
Workstation.
The system requires DDR2-667, unbuffered, ECC DIMMs installed in pairs (except
the base 512 MB configuration). You can purchase DIMM kits at:
http://store.sun.com
DIMM slots are numbered from DIMM 0 to DIMM 3. Populate DIMM slots starting
farthest from the CPU (that is, starting with slot 3).
TABLE A-2
Total Memory
512 MB
1 GB
2 GB
3 GB
4 GB
5 GB
6 GB
8 GB
lists the possible memory configurations for the Sun Ultra 20 M2
Sun Ultra 20 M2 Workstation Memory Configurations
Supported DIMM
Configuration 1
1 x 512 MB
2 x 512 MB
2 x 1 GB
2 x 1 GB and
2 x 512 MB
2 x 2 GB
2 x 2 GB and
2 x 512 MB
2 x 2 GB and
2 x 1 GB
4 x 2 GB
Supported DIMM
Configuration 2
4 x 512 MB
4 x 1 GB
Appendix A System Specifications A-3