IBM 865951Y - Netfinity 5000 - 51Y, Hardware Maintenance Manual

Page: 124 / 220

Memory modules
Adding system memory to the server is an easy way to
make programs run faster. You can increase the amount
of system memory by installing options called
memory
modules. The server uses a noninterleaved memory
configuration, with error correcting code (ECC) data
protection.
Notes
1. The server comes with one or more dual-inline
memory modules (DIMM)s installed.
2. The server supports 100 MHz, 64 MB, 128 MB,
and 256 MB DIMMs.
3. Install only registered SDRAM ECC DIMMs.
4. When you are installing memory modules, you
might find it more efficient to install them in
adjacent connectors, with no vacant memory
connectors in between. For example, if the
server only has one DIMM installed in memory
connector J15, install additional memory in the
J16 memory connector; then, continue with
connectors J17 and J22.
5. If you are installing DIMMs of different sizes, you
might find it more efficient to install DIMMs with
the greater memory capacity starting with
connector J15. For example, when installing two
256 MB DIMMs, install the DIMMs in memory
connectors J15 and J16.
6. After installing or removing a DIMM, you must
save the new configuration information using the
Configuration/Setup Utility program. See
“Configuration/Setup utility usage” on page 22.
Installing or removing memory modules:
This section gives the procedure for installing memory
modules. If you want to remove a memory module,
reverse the following steps.
Before you begin
Ÿ
Read “Safety information” on page 176.
Ÿ
Read the documentation that comes with the
option.
116
Netfinity Server HMM