IBM 8681 Hardware Maintenance Manual - Page 73

Table 2. Memory installation requirements, Table 3. Memory expansion, Table, the server.

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Table 2 shows the memory installation requirements for the server. Table 2. Memory installation requirements DIMM sizes 128 MB, 256 MB, 512 MB DIMM population order for a single board configuration - standard memory board (A) A1, A5, A9, A13, A3, A7, A11, A15, A2, A6, A10, A14, A4, A8, A12, A16 DIMM population order for a dual board configuration - standard memory board (A) and optional memory board (B) A1/B1, A5/B5, A9/B9, A13/B13, A3/B3, A7/B7, A11/B11, A15/B15, A2/B2, A6/B6, A10/B10, A14/B14, A4/B4, A8/B8, A12/B12, A16/B16 Notes: 1. The 100 MHz DIMMs support the registered mode of operation. 2. Install DIMMs with a maximum height of 4.32 cm (1.7 inches). 3. The server comes with one standard (preinstalled) memory board (A), and one or more DIMMs installed on this memory board. You can install an optional memory board (B). Both the standard memory board (A) and the optional memory board (B) contain 16 DIMM connectors (J1-J16). 4. When you install DIMMs in both the standard memory board (A) and the optional memory board (B), you must install them in matching pairs with the same part number, in the same slot on each memory board; for example, J1/J1, J5/J5, J9/J9, and so on. Table 3 shows the available memory configurations. Table 3. Memory expansion DIMM size 128 MB 256 MB 16 Connectors (1 Board) 2 GB 4 GB 512 MB 8 GB 32 Connectors (2 Boards) 4 GB 8 GB 16 GB Netfinity 8500R - Type 8681 65

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Table
2 shows the memory installation requirements for
the server.
Table
3 shows the available memory configurations.
Table 2. Memory installation requirements
DIMM sizes
128 MB, 256 MB, 512 MB
DIMM population order for a
single board configuration —
standard memory board (A)
A1, A5, A9, A13, A3, A7, A11,
A15, A2, A6, A10, A14, A4, A8,
A12, A16
DIMM population order for a dual
board configuration — standard
memory board (A) and optional
memory board (B)
A1/B1, A5/B5, A9/B9, A13/B13,
A3/B3, A7/B7, A11/B11,
A15/B15, A2/B2, A6/B6,
A10/B10, A14/B14, A4/B4,
A8/B8, A12/B12, A16/B16
Notes:
1.
The 100 MHz DIMMs support the registered mode of operation.
2.
Install DIMMs with a maximum height of 4.32 cm (1.7
inches).
3.
The server comes with one standard (preinstalled) memory board
(A), and one or more DIMMs installed on this memory board.
You
can install an optional memory board (B).
Both the standard
memory board (A) and the optional memory board (B) contain 16
DIMM connectors (J1–J16).
4.
When you install DIMMs in both the standard memory board (A)
and the optional memory board (B), you must install them in
matching pairs with the same part number, in the same slot on
each memory board; for example, J1/J1, J5/J5, J9/J9, and so on.
Table 3. Memory expansion
DIMM size
16 Connectors
(1 Board)
32 Connectors
(2 Boards)
128 MB
2 GB
4 GB
256 MB
4 GB
8 GB
512 MB
8 GB
16 GB
Netfinity 8500R - Type 8681
65