For maximum interleaving performance:

Install identical capacity DIMMs in all four banks.

The next figure illustrates the possible system interleaving configurations. In only one configuration is it possible to interleave by four. Both groups must be populated with DIMMs of the same size supporting four banks.

Group 0

Group 1

Bank 0

Bank 2

Bank 1

Bank 3

Group 0

Group 1

Bank 0

Bank 2

Bank 1

Bank 3

Group 0

Group 1

Bank 0

Bank 2

Bank 1

Bank 3

Group 0

Group 1

Bank 0

Bank 2

Bank 1

Bank 3

Group 0

Group 1

Bank 0

Bank 2

Bank 1

Bank 3

Group 0

Group 1

Bank 0

Bank 2

Bank 1

Bank 3

No interleaving

No interleaving

2-way interleaving

2-way interleaving

2-way interleaving

4-way interleaving

82 Sun Fire 280R Server Owner’s Guide • January 2001

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Image 110
Sun Microsystems 280R manual Group Bank No interleaving Way interleaving