IBM 86604RU - Netfinity 5500 - 4RU, Hardware Maintenance Manual

Page: 361 / 402

core ratio of 4.5 (450/100). Refer to the following
table.
Note
To turn a switch Off, press the switch on the side
where the word off is printed. To turn a switch
On, press the switch on the side opposite of
where the word off is printed.
CPU
Core
Ratio
SW1
Position
1
SW1
Position
2
SW1
Position
3
SW1
Position
4
4.0 On On On Off
4.5 On Off On Off
5.0 On On Off Off
Installing memory-modules
You install the memory modules on the processor
assembly included in the Processor Upgrade Kit. You
must install memory modules that are compatible with the
Processor Upgrade Kit.
Important
When installing memory, keep the following in mind:
Ÿ
Install only 3.3 V, 168-pin, 8-byte, registered
DIMMs.
Ÿ
The memory-module kit sizes available for the
server are 128 MB, 256 MB, and 512 MB. The
server supports a minimum of 128 MB and a
maximum of 2 GB of system memory.
Ÿ
Only 100 MHz, 72-bit, registered, synchronous,
ECC, x4 configuration DIMMs are supported for
the 128, 256 MB and 512 MB DIMMs.
Ÿ
Installing or removing memory modules changes
the configuration information in the server. After
adding or removing a DIMM, save the new
configuration information in the
Configuration/Setup program. When you restart
the server, the system displays a message
indicating that the memory configuration has
changed. Start the Configuration/Setup program
and select Save Settings. Refer to the
documentation that comes with the server for
more information.
Install the first memory module in DIMM socket 4. Install
additional memory modules in DIMM sockets 3, 2, and 1 in
that order. If you mix DIMM sizes, install the largest sized
DIMM in DIMM socket 4, the next largest sized DIMM in
DIMM socket 3, and so forth.
2-way Xeon upgrade installation
353