Sun Blade 1000 (A28)
Sun Blade 2000 (A29)
Sun Fire 280R (A35)
Netra 20 (N28)

Options 7050 / 7051 / 7052 / 7053 / 7061 / 7062 / 7063

501-4489	501-5030	501-5031	501-5401
128MB 3.3V ECC 7ns SDRAM Option 7050	512MB 3.3V ECC 7ns SDRAM Option 7051	1GB 3.3V ECC 7ns SDRAM Option 7052	256MB 3.3V ECC 7ns SDRAM Option 7053

540-6173	501-6174	501-6175
1GB CR1/LC1 3.3V ECC 7ns SDRAM Option 7063	512MB CR1/LC1 3.3V ECC 7ns SDRAM Option 7062	256MB CR1/LC1 3.3V ECC 7ns SDRAM Option 7061

Memory Map

U0407	Group 1	Bank 1/3	fa000000 - 1f3ffffff
U0406	Group 0	Bank 0/2	00000000 - f9ffffff
U0305	Group 1	Bank 1/3	fa000000 - 1f3ffffff
U0304	Group 0	Bank 0/2	00000000 - f9ffffff
U0203	Group 1	Bank 1/3	fa000000 - 1f3ffffff
U0202	Group 0	Bank 0/2	00000000 - f9ffffff
U0101	Group 1	Bank 1/3	fa000000 - 1f3ffffff
U0100	Group 0	Bank 0/2	00000000 - f9ffffff

System Codenames

Notes

1. The minimum requirement is four DIMMs of equal size in any group.
2. DIMMs can be installed in any group order.
3. Each group addresses 4GB of memory.
4. The DIMMs in Group 0 do not need to be the same size as those in Group 1.
5. The 501-6173/6174/6175 are 13mm taller than other listed DIMMs.
6. The 501-6173/6174/6175 are for use in the Sun Blade 1000/2000 and Sun Fire 280R and are not qualified in any other system.
7. Memory slots (Jxxxx) map to same-numbered DIMMs (Uxxxx):
   

   Slot	DIMM
   J0407	U0407
   J0406	U0406
   J0305	U0305
   J0304	U0304
   J0203	U0203
   J0202	U0202
   J0101	U0101
   J0100	U0100

References

1. Sun Blade 1000 Service Manual, 805-4496.
2. Sun Blade 1000 and 2000 Service Manual, 816-3217.
3. Sun Fire 280R Server Owner's Manual, 806-4806.
4. Netra 20 Service and System Reference Manual, 806-7336.