68 IBM eX5 Implementation Guide
The QPI Wrap Cards are not included with standard server models and must be ordered
separately. See Table 3-5.
Table 3-5 Ordering information for the QPI Wrap Card
The QPI Wrap Cards are installed in the QPI bays at the back of the server, as shown in
Figure 3-10.
QPI Wrap Cards are not needed in a 2-node configuration and not needed in a MAX5
configuration. When the QPI Wrap Cards are installed, no external QPI ports are available.
If you later want to attach a MAX5 expansion unit or connect a second node, you must first
remove the QPI Wrap Cards.
Figure 3-10 Rear of the x3850 X5
3.5 MAX5
As introduced in 3.1.3, “IBM MAX5 memory expansion unit” on page 59, the MAX5 memory
expansion drawer is available for both the x3850 X5 and the x3950 X5. Models of the x3850
X5 and x3950 X5 are available that include the MAX5, as described in 3.3, “Models” on
Part number Feature code Description
49Y4379 Not applicable IBM x3850 X5 and x3950 X5 QPI Wrap Card Kit (quantity 2)
Tips:
Part number 49Y4379 includes two QPI Wrap Cards. You order only one of these parts
per server.
QPI Wrap Cards cannot be ordered individually.
QPI bays (remove
the blanks first)
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