IBM System x3690 X5
11
MAX5 memory expansion unit
The IBM MAX5 memory expansion unit is a 1U unit that has 32 DDR3 DIMM sockets, two 675-watt power
supplies, and five 40-mm hot-swap speed-controlled fans. It provides added memory for the x3690 X5
server. Some models include the MAX5 standard as listed in the model table above. The MAX5 options
are listed in Table 5.
There are two MAX5 options available as listed in the table:
IBM MAX5 for System x
®
, part number 59Y6265 (also known as MAX5 V1)
IBM MAX5 V2 for System x, part number 88Y6529
MAX5 V2 is the second generation unit and features newer versions of the Intel scalable memory buffers,
which enable support for both 1.35V DIMMs and 32 GB DIMMs.
Note that some models and some processors do not support the MAX5 (either generation). See the model
table and the processor options table for details. The MAX5 (V1) includes one power supply. The second
power supply is optional (part 60Y0332) and provides redundancy. The MAX5 V2 includes two power
supplies; no additional power supplies are needed or available.
Table 5. MAX5
Part
number
Feature
code
Description
Maximum
supported
59Y6265
4199
IBM MAX5 for System x (also known as MAX5 V1)
1
88Y6529
A19H
IBM MAX5 V2 for System x
1
60Y0332
4782
IBM High Efficiency 675W Power Supply
(for MAX5 V1 only, part 59Y6265)
1 (MAX5 V1 only)
59Y6269
7481
IBM MAX5 to x3690 X5 Cable Kit
1
Memory options
IBM DDR3 memory is compatibility tested and tuned for optimal System x performance and throughput.
IBM memory specifications are integrated into the light path diagnostics for immediate system
performance feedback and optimum system uptime. From a service and support standpoint, IBM memory
automatically assumes the IBM system warranty, and IBM provides service and support worldwide.
The IBM System x3690 X5 supports DDR3 memory. Memory is installed in DIMM sockets either on the
system planar (16 sockets) in an optional memory mezzanine tray (16 sockets). The DIMMs on the
system planar are directly connected to the first processor, and the DIMMs on the mezzanine are directly
connected to the second processor. If you install the mezzanine then you must install the second
processor. However the reverse is different: you do not have to install the mezzanine if you have two
processors installed (although for performance reasons the mezzanine is recommended).
