Ultra 80 (A27)
Enterprise 420R (A33) / Netra t 1400/1405

Options 7043 / 7005

501-5691	501-4743
64MB 5V ECC 60ns DIMM Option 7043	256MB 5V ECC 60ns DIMM Option 7005

Memory Map

RISER BOARD	SYSTEM BOARD	BANK	ADDRESS
U0301 U0302	U1301 U1302	0 0 0 0	0000 0000 - 3fff ffff 0000 0000 - 3fff ffff 0000 0000 - 3fff ffff 0000 0000 - 3fff ffff
U0401 U0402	U1401 U1402	1 1 1 1	4000 0000 - 7fff ffff 4000 0000 - 7fff ffff 4000 0000 - 7fff ffff 4000 0000 - 7fff ffff
U0303 U0304	U1303 U1304	2 2 2 2	8000 0000 - bfff ffff 8000 0000 - bfff ffff 8000 0000 - bfff ffff 8000 0000 - bfff ffff
U0403 U0404	U1403 U1404	3 3 3 3	c000 0000 - ffff ffff c000 0000 - ffff ffff c000 0000 - ffff ffff c000 0000 - ffff ffff

Notes

1. The minimum requirement is four DIMMs in any bank.
2. DIMMs are required on both the Riser Board and the System Board.
3. The recommended installation sequence is Bank 0, 2, 1, 3.
4. Each bank addresses 1GB of memory.
5. 64MB DIMM 501-2480 and 128MB DIMM 501-3136 are not supported.
6. 16MB and 32MB DIMMs are not sold for the Ultra 80.

Reference

Ultra 80 Service Manual, 805-6618.