Installing A Memory Module - IBM System x3650 Installation Manual

2. If you are planning to install or remove a microprocessor, memory module, PCI
3. Press down on the left and right side latches and pull the server out of the rack
4. Lift the cover-release latch. Lift the cover off the server and set the cover aside.
Attention:
the server. Operating the server for extended periods of time (more than 30
minutes) with the cover removed might damage server components.

Installing a memory module

The following notes describe the types of dual inline memory modules (DIMMs) that
the server supports and other information that you must consider when installing
DIMMs:
v The server supports up to 12 Fully Buffered DIMM PC2-5300 512 MB, 1 GB, 2
v The server comes with a minimum of two 512 MB DIMMs, installed in slots 1 and
12
IBM System x3650 Type 7979: Installation Guide
adapter, battery, or other non-hot-swap optional device, turn off the server and
all attached devices and disconnect all external cables and power cords (see
"Turning off the server" on page 39).
Attention: In a dc power environment, only trained service personnel other
than IBM service technicians are authorized to connect or disconnect power to
the dc power supply. See the documentation that comes with each dc power
supply.
enclosure until both slide rails lock.
Note: You can reach the cables on the back of the server when the server is in
the locked position.
Cover-release
latch
For proper cooling and airflow, replace the cover before you turn on
GB, and 4 GB DIMMs, for a maximum of 48 GB of system memory. See
http://www.ibm.com/servers/eserver/serverproven/compat/us/ for a list of memory
modules that you can use with the server.
Note: Because some memory is reserved for system operation, the actual
usable memory size that is reported by the operating system is less than the total
installed size.
4. When you install additional DIMMs, you must install two identical DIMMS at a
time, in the order shown in the following table, to maintain performance.