IBM 8659-71Y Maintenance Manual - Page 124

Memory Modules

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Memory Modules Adding system memory to your 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. Your 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 your 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 Read "Safety Information" on page 174. Read the documentation that comes with the option. 116 Netfinity Server HMM

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Memory Modules
Adding system memory to your 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.
Your 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 your
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
±
Read “Safety Information” on page
174.
±
Read the documentation that comes with the
option.
116
Netfinity Server HMM