IBM Netfinity 3500 M10, User Handbook Manual

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Working with system memory
You can add memory to your server to increase system
performance. Your server has four connectors for installing
system-memory modules (DIMMs) up to a maximum of 1 GB.
Memory DIMM options
Important: Be sure to observe the following guidelines when adding
memory DIMM options to your server.
Ÿ
Only 168-pin, 100 MHz, 3.3V industry standard memory DIMMs
are supported.
Ÿ
Do not mix registered and unregistered DIMMs.
– The 64 MB and 128 MB DIMMs are unregistered memory
technology.
– The 256 MB DIMM is registered memory technology.
Ÿ
The Netfinity 3500 M10 does not support EDO memory. If you
use registered DIMMs, you must remove all unregistered
DIMMs from your server.
A mix of registered and unregistered memory prevents the
server from completing startup, and results in an error beep
sequence and a blank screen.
Note: To locate the DIMM connectors inside your server, see
“Identifying parts on the system board” on page 82.
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Netfinity 3500 M10 User's Handbook