IBM 88553RX, Installation Manual

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Chapter 3. Planning
57
Figure 3-1 Processor installation order
3.1.2 Memory
A maximum of 28 DIMMs may be installed in the memory-board assembly of the
x455, depending on the size of the DIMMs used. Supported DIMMs are listed in
Table 3-2.
Table 3-2 Supported DIMMs
Go to the ServerProven site for the latest information on supported memory
modules:
http://www.pc.ibm.com/us/compat/machines/x455.html
When installing memory DIMMs, they must be installed in matched pairs (size
and technology), in the order shown in Table 3-3.
Table 3-3 DIMM order
2
1 3
4
Center
plane
Side of
chassis
Size Description Part number Max installable
512 MB PC2100 CL2.5 ECC DDR SDRAM 33L5038 28
1 GB PC2100 CL2.5 ECC DDR SDRAM 33L5039 28
2 GB PC2100 CL2.5 ECC DDR SDRAM 33L5040 28
Pair Port 1 DIMM slots Pair Port 2 DIMM slots
1 1 and 14 2 15 and 28
3 2 and 13 4 16 and 27
5 3 and 12 6 17 and 26