Installing The Virtual Media Key - IBM System x3400 M3 Types 7378 Installation And User Manual

v The RDIMM options that are available for the server are 1 GB, 2 GB, 4 GB, and
v The UDIMM options that are available for the server are 1 GB, 2 GB and 4 GB.
v When you install one quad-rank RDIMM in a channel, install it in the DIMM
v Do not install one quad-rank RDIMM in one channel and three RDIMMs in
v Do not install 1.5V DIMMs and 1.35V DIMMs in the same server.

Installing the virtual media key

To install a virtual media key, complete the following steps:
1. Align the alignment bracket on the rear of the key with the retention tab on the
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IBM System x3400 M3 Types 7378 and 7379: Installation and User's Guide
Table 6. Maximum memory installation using ranked DIMMs (continued)
Number of DIMMs DIMM type
16 Dual-rank RDIMMs
16 Dual-rank RDIMMs
8 GB. The server supports a minimum of 1 GB and a maximum of 128 GB of
system memory using RDIMMs.
For 32-bit operating systems only: Some memory is reserved for various
system resources and is unavailable to the operating system. The amount of
memory that is reserved for system resources depends on the operating system,
the configuration of the server, and the configured PCI devices.
The server supports a minimum of 1 GB and a maximum of 48 GB of system
memory using UDIMMs.
Note: The amount of usable memory is reduced depending on the system
configuration. A certain amount of memory must be reserved for system
resources. To view the total amount of installed memory and the amount of
configured memory, run the Setup utility. For additional information, see
Chapter 3, "Configuring the server," on page 101.
connector furthest away from the microprocessor.
another channel.
system board; then, slide the key down into the virtual media key connector on
the system board until it is firmly seated in place.
DIMM size Total memory
4 GB 64 GB
8 GB 128 GB