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82 Sun Fire 280R Server Owner’s Guide • January 2001
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
Group 0
No interleaving
Group 1
Group 0 Group 1
No interleaving
Group 0 Group 1
Group 0 Group 1
2-way interleaving
2-way interleaving
2-way interleaving
Group 0 Group 1
4-way interleaving
Bank 3Bank 1Bank 2Bank 0
Bank 3Bank 1Bank 2Bank 0
Bank 3Bank 1Bank 2Bank 0
Bank 3Bank 1Bank 2Bank 0
Bank 3Bank 1Bank 2Bank 0
Bank 3Bank 1Bank 2Bank 0