IBM IntelliStation - ps-2

Part
Number
Updated 07/01/03
Memory Description 1
xSeries 445 Memory
SBB
Number 2
33L5038 512MB DDR PC2100 ECC RDIMM 37L3538
Total
System
Memory 1
2GB
(4x512MB)
standard
2, 3
Quantity of RDIMMs Added
512MB
(33L5038)
1GB
(33L5039)
2GB
(33L5040)
33L5039 1GB DDR PC2100 ECC RDIMM 33P3126 3GB 2 - -
33L5040 2GB DDR PC2100 ECC RDIMM 32P9223 4GB 4 - -
5GB 6 - -
1. Due to two-way interleaving, installation of memory options in banks of
6GB 8 - -
two is required. Banks may be populated in any order. A minimum of two
RDIMMs are required for each SMP Expansion Module (minimum of four
required to enable memory mirroring).
7GB
8GB
10
12
-
-
-
-
2. IBM offers configure-to-order (CTO) capability for selected products
through Easy Access. Although similar to machine type models (MTM),
9GB 14 - -
CTO systems utilize different part numbers called Sales Building Blocks
(SBB). The contents of an option may not entirely correspond to an SBB
because only a certain component within an option package may be
10GB
11GB
16
18
-
-
-
-
required to configure a specific system. Additional or different
configuration rules or limitations may apply to the SBB. When a difference
12GB 20 - -
occurs, the rules will be documented in the tables, diagrams or footnotes.
13GB 22 - -
Notes:
14GB 24 - -
1. See numbering of RDIMM sockets on memory card for bank
configuration.
15GB 26 - -
2. Performance is optimized by balancing the amount of memory
between ports (and between SMP Expansion Modules).
16GB 28 - -
3. In order to enable memory mirroring during BIOS set-up, the same
18GB 24 4 -
memory configuration must be installed in each port (memory mirroring
reduces the amount of memory available to the operating system by
20GB 20 8 -
half). Mirror banks 1, 3, 5, 7 with banks 2, 4, 6, 8 (see list of banks below
memory card diagram).
22GB 16 12 -
4. Memory mirroring is specific to each SMP Expansion Module, but
enabling mirroring in both SMP Expansion modules for eight-way systems
is required.
24GB
26GB
12
8
16
20
-
-
28GB 4 24 -
32GB4 - 32 -
36GB4 - 28 4
40GB4 - 24 8
44GB4 - 20 12
48GB4 - 16 16
52GB 4
- 12 20
56GB 4
60GB
- 8 24
4 64GB
- 4 28
4 Numbering of RDIMM sockets on memory card
back of
1 2 3 4 5 6 7 8
port 1: RDIMM 1-8
front of planar
9 10 11 12 13 14 15 16
port 2: RDIMM 9-16
- - 32
Bank 1: sockets 1, 3
This table does not represent all possible memory configurations. Memory modules may
Bank 2: sockets 9, 11
Bank 3: sockets 5, 7
Bank 4: sockets 13, 15
vary in price per MB. Selection of smaller RDIMMs may provide a more cost-effective
alternative to using larger RDIMMs. RDIMMs must be added in sets of two to support
interleaving technology.
Bank 5: sockets 2, 4
1. Network operating systems may limit the maximum amount of addressable memory. See
Bank 6: sockets 10, 12
operating system specifications for further information.
Bank 7: sockets 6, 8
2. To obtain the quantity of memory identified in the “Total System Memory” column, select
the appropriate row and order the quantity of RDIMMs identified in all columns for that row,
which will be added to the standard memory noted at the top of the left column.
3. Optional SMP Expansion Module for Base Models (P/N 02R1870) in Xeon MP models is
required if total RDIMMs exceed 16.
4. Requires removal of standard RDIMMs.
For the latest product & technical information, refer to the Information Sources on pages 2 & 3.
131
IBM xSeries 445