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Ultra 450 (A20)
Enterprise 450 (A25)

Options 7002 / 7003 / 7004 / 7005 / 7043

501-2622 501-2480 501-5691 501-3136
32MB 5V ECC
60ns DIMM
Option 7002
64MB 5V ECC
60ns DIMM
Option 7003
64MB 5V ECC
60ns DIMM
Option 7043
128MB 5V ECC
60ns DIMM
Option 7004
501-4743 501-5896 501-6005 501-6056
256MB 5V ECC
60ns DIMM
Option 7005
256MB 5V ECC
60ns DIMM
w Gate Array Logic
No Option
256MB 5V ECC
60ns DIMM
w Gate Array Logic
No Option
256MB 5V ECC
60ns DIMM
w Gate Array Logic
Option 7005

Memory Map

SOCKET LABEL INSTALL BANK DIMM# ADDRESS
U1604
U1603
U1602
U1601
D
D
D
D
4th
4th
4th
4th
3
3
3
3
3
2
1
0
c000 0000 - ffff ffff
c000 0000 - ffff ffff
c000 0000 - ffff ffff
c000 0000 - ffff ffff
U1804
U1803
U1802
U1801
B
B
B
B
2nd
2nd
2nd
2nd
1
1
1
1
3
2
1
0
4000 0000 - 7fff ffff
4000 0000 - 7fff ffff
4000 0000 - 7fff ffff
4000 0000 - 7fff ffff
U1704
U1703
U1702
U1701
C
C
C
C
3rd
3rd
3rd
3rd
2
2
2
2
3
2
1
0
8000 0000 - bfff ffff
8000 0000 - bfff ffff
8000 0000 - bfff ffff
8000 0000 - bfff ffff
U1904
U1903
U1902
U1901
A
A
A
A
1st
1st
1st
1st
0
0
0
0
3
2
1
0
0000 0000 - 3fff ffff
0000 0000 - 3fff ffff
0000 0000 - 3fff ffff
0000 0000 - 3fff ffff

Notes

  1. Four DIMMs of the same size form a bank.
  2. The installation sequence is AAAA, BBBB, CCCC, and DDDD.
  3. Use the setenv memory-interleave OBP command to set interleaving.
  4. The smallest DIMM size is used and the remaining memory is lost if interleaving is enabled and the bank sizes are different.

Reference

  1. Ultra Enterprise 450 Server Owners Guide, 805-0429.
  2. Ultra 450 Workstation Owners Guide, 805-0430.

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