Ibm Max5 Memory Expansion Unit - IBM System x3850 X5 Implementation Manual

important: The x3950 X5 top cover cannot be removed and the server remain powered
on. If the top cover is removed, the server powers off immediately.

4.1.2 IBM MAX5 memory expansion unit

The IBM MAX5 for System x (MAX5) memory expansion unit has 32 DDR3 DIMM sockets,
one or two 675-watt power supplies, and five 40 mm hot-swap speed-controlled fans. It
provides added memory and multinode scaling support for host servers.
The MAX5 memory expansion unit is based on eX5, the next generation of Enterprise
X-Architecture (EXA). The MAX5 expansion unit is designed for performance, expandability,
and scalability. The fans and power supplies use hot-swap technology for easier replacement
without requiring that you turn off the expansion module.
Figure 4-5 shows the x3690 X5 with the attached MAX5.
Figure 4-5 x3690 X5 with the attached MAX5 memory expansion unit
The MAX5 has the following specifications:
IBM EXA5 chip set.
Intel memory controller with eight memory ports (four DIMMs on each port).
Intel QPI architecture technology to connect the MAX5 to the x3690 X5. There are two
QPI links and each QPI link operates at up to 6.4 GT/s depending on the processors
installed.
Memory DIMMs:
– Minimum: 2 DIMMs, 4 GB.
– Maximum: 32 DIMM connectors (up to 512 GB of memory using 16 GB DIMMs).
– Type of DIMMs: PC3-10600, 1067 MHz, error checking and correction (ECC), and
DDR3 registered SDRAM DIMMs.
– Support for 2 GB, 4 GB, 8 GB, and 16 GB DIMMs.
Chapter 4. IBM System x3690 X5
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