Memory Map (SB1000/SB2000, 280R)

CPU to Memory Association (V480, V490, V880, V890)

CPU to Memory Group Map (V480, V490, V880, V890)

Notes (SB1000/2000, 280R)

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. Option 7052A changed from 501-5031 to 501-6109 in August 2003.
   The last shipment date of Options 7052A and X7052A was in April 2004.
7. DIMM 501-7385 was added to F501-5030 in February 2006.
8. DIMM 501-7386 was added to F501-6109 in February 2006.
9. DIMM 501-7385 was removed from F501-5030 in April 2006.
10. DIMM 501-7386 was removed from F501-6109 in April 2006.
11. DIMM 501-7385 was added to Option 7051 in February 2006.
12. DIMM 501-7386 was added to Option 7056 in February 2006.
13. 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

Notes (V480, V490, V880, V890)

1. Four DIMMs of the same size form a group.
2. For 750MHz and 900MHz system boards, the minimum memory is eight DIMMS in groups A0 and B0.
3. For 1050MHz and higher system boards, the minimum memory is sixteen DIMMs in groups A0, A1, B0, and B1.
4. DIMMs must be added four-at-a-time within the same group of DIMM slots; every fourth slot belongs to the same DIMM group.
5. DIMM groups associated with a failed CPU are unavailable for use.
6. Interleaving is limited to memory on the same CPU/Memory Board.
7. Two-way interleaving occurs in any group when the DIMM size does not match the size used in any other group.
8. Four-way interleaving occurs between any two groups when the DIMM sizes are the same.
9. Eight-way interleaving occurs when the DIMMs in all four groups are the same size.
10. 1GB DIMM FRU F540-5086, which includes 501-6109, was released in October 2001.
11. 1GB DIMM FRU F501-6109 replaced F540-5086 in December 2003.
12. DIMM 501-7385 was added to F501-5030 in February 2006.
13. DIMM 501-7386 was added to F501-6109 in February 2006.
14. DIMM 501-7385 was removed from F501-5030 in April 2006.
15. DIMM 501-7386 was removed from F501-6109 in April 2006.
16. DIMM 501-7385 was added to Option 7051 as a manufacturing substitute in February 2006.
17. DIMM 501-7386 was added to Option 7056 as a manufacturing substitute in February 2006.
18. 1GB DIMMs are not supported on 750MHz CPU/Memory boards in Sun Fire V880.
19. 128MB DIMMs are only supported on 750MHz CPU/Memory boards in Sun Fire V880.

1. Four DIMMs of the same size form a bank.
2. A populated DIMM bank requires an UltraSPARC III or UltraSPARC IV CPU.
3. 1GB DIMM FRU F540-5086 was reactivated in February 2004.
4. DIMM 501-7385 was added to F501-5030 in February 2006.
5. DIMM 501-7386 was added to F501-6109 in February 2006.
6. DIMM 501-7386 was added to 540-5086 in February 2006.
7. DIMM 501-7385 was removed from F501-5030 in April 2006.
8. DIMM 501-7386 was removed from F501-6109 in April 2006.
9. DIMM 501-7385 was added to Option 7051 in February 2006.
10. DIMM 501-7386 was added to Option 7056 in February 2006.
11. The 501-7385 and 501-7386 were added to UniBoard configurations in February 2006.

Sun Fire 3800-6800 Notes

1. For Sun Fire 3800-6800, 1GB DIMMs 501-6109 and 540-5086 are only supported on 900MHz and faster system boards.

Sun Fire E2900 Notes

1. Sun Fire E2900 supports both UltraSPARC III and IV processors.
   256MB DIMMs are only supported on UltraSPARC III.