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Sun Fire V480 (A37)
Sun Fire V880 (A30)

Options 7050 / 7051 / 7053 / 7056

501-4489 501-5030 501-5401 540-5086
128MB 3.3V ECC
7ns SDRAM DIMM
Option 7050
V880 only
512MB 3.3V ECC
7ns SDRAM DIMM
Option 7051
256MB 3.3V ECC
7ns SDRAM DIMM
Option 7053
1GB 3.3V ECC
7ns SDRAM DIMM
Option 7056
501-6109

CPU to Memory Association

SOCKET CPU MEMORY GROUP INSTALLATION
J2900
J2901
J3001
J3000
0 1 4 5
0 1 4 5
0 1 4 5
0 1 4 5
A0
A0
A0
A0
1st Group
1st Group
1st Group
1st Group
Required
Required
Required
Required
J7900
J7901
J8001
J8000
2 3 6 7
2 3 6 7
2 3 6 7
2 3 6 7
B0
B0
B0
B0
2nd Group
2nd Group
2nd Group
2nd Group
Required
Required
Required
Required
J3100
J3101
J3201
J3200
0 1 4 5
0 1 4 5
0 1 4 5
0 1 4 5
A1
A1
A1
A1
3rd Group
3rd Group
3rd Group
3rd Group
Optional
Optional
Optional
Optional
J8100
J8101
J8201
J8200
2 3 6 7
2 3 6 7
2 3 6 7
2 3 6 7
B1
B1
B1
B1
4th Group
4th Group
4th Group
4th Group
Optional
Optional
Optional
Optional

CPU to Memory Group Map

CPU CPU/Memory Slot Associated DIMM Group
CPU 0 Slot A A0, A1
CPU 2 Slot A B0, B1
CPU 1 Slot B A0, A1
CPU 3 Slot B B0, B1
CPU 4 Slot C A0, A1
CPU 6 Slot C B0, B1
CPU 5 Slot D A0, A1
CPU 7 Slot D B0, B1

System Codenames

System Codename
Sun Fire V480 Cherrystone
Sun Fire V880 Daktari

Notes

  1. Four DIMMs of the same size form a group.
  2. The minimum memory is eight DIMMS in groups A0 and B0.
  3. DIMMs must be added four-at-a-time within the same group of DIMM slots; every fourth slot belongs to the same DIMM group.
  4. Whenever possible, have each group consist of four DIMMs from the same manufacturing vendor.
  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.

References

  1. Sun Fire V480 Server Adminsitration Guide, 816-0904
  2. Sun Fire V880 Service Manual, 806-6597

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