-A P P E N D I X

A P P E N D I X B

Memory Configuration

This appendix describes the memory configurations available for the Netra 20 system

Note - The information was correct at the time of printing but you should contact your Sun sales representative for the latest information.

The system supports up to eight Dual-Inline Memory Modules (DIMMs), which are available in the following sizes:

256 Mbyte

512 Mbyte

1.0 Gbyte

There are two memory groups, each comprising four slots (marked 0 and 1 on the motherboard). For a configuration to be valid, all four slots of at least one memory group must be filled with DIMMs of the same size. Either group can be used if a single group is filled, and different size DIMMs can be used in each group provided that all the DIMMs in a single group are of the same size.

The system therefore supports configuration from 1 to 8 Gbyte, as shown in TABLE B-1.

For details of the procedures for removing and installing memory modules, refer to of the Netra 20 Service and System Reference Manual.


Total Configured Memory Density	Even Bank 0 DIMMs	Odd Bank 1 DIMMs	Interleaving
1.0 Gbyte 1.0 Gbyte	256 Mbyte empty	empty 256 Mbyte	2-way/4-way 2-way
2.0 Gbyte	256 Mbyte 512 Mbyte empty	256 Mbyte empty 512 Mbyte	2-way/4-way 2-way 2-way
3.0 Gbyte	512 Mbyte 256 Mbyte	256 Mbyte 512 Mbyte	2-way 2-way
4.0 Gbyte	512 Mbyte 1 Gbyte empty	512 Mbyte empty 1 Gbyte	2-way/4-way 2-way 2-way
5.0 Gbyte	1 Gbyte 256 Mbyte	256 Mbyte 1 Gbyte	2-way 2-way
6.0 Gbyte	1 Gbyte 512 Mbyte	512 Mbyte 1 Gbyte	2-way 2-way
8.0 Gbyte	1 Gbyte	1 Gbyte	2-way/4-way