CPU to Memory Association

Notes

1. The minimum V490 operating system is Solaris 8 2/04, Solaris 9 4/04, or Solaris 10 3/05.
2. Sun Fire V490 OBP >=4.15 Version 1 is required.
3. Sun Fire V490 PCI I/O 501-6911-01 with OBP 4.15.1 released in August 2004.
4. Mixing UltraSPARC IV CPU/Memory board speeds is supported.
5. Mixing UltraSPARC III and UltraSPARC IV CPU/Memory boards is not supported.
6. The 1050MHz UltraSPARC IV is not supported in the Sun Fire V480, V880, or V890.

Memory Notes

1. Four DIMMs of the same size form a group.
2. The minimum memory configuration is sixteen DIMMS.
3. Memory errors include CPU number, J number, and Slot location.
4. DIMM groups associated with a failed CPU are unavailable for use.
5. Interleaving is limited to memory on the same CPU/Memory Board.
6. Two-way interleaving occurs in any group when the DIMM size does not match the size used in any other group.
7. Four-way interleaving occurs between any two groups when the DIMM sizes are the same.
8. Eight-way interleaving occurs when the DIMMs in all four groups are the same size.