IBM 306m - eServer xSeries - 8849 User Manual page 38

v If you install a pair of DIMMs in DIMM connectors 2 and 4, they do not have to
v Install only 1.8 V, 240-pin, double-data-rate II (DDR II), PC4200, unbuffered
v If you install a pair of 2 GB DIMMs and a pair of other-size DIMMs, the 2 GB
v When you restart the server after adding or removing a DIMM, a message is
To remove a DIMM, complete the following steps:
1. Read the safety information that begins on page v and "Installation guidelines"
2. Turn off the server and peripheral devices, and disconnect the power cord and
3. Open the retaining clip on each end of the DIMM connector.
4. Lift the DIMM out of the connector.
To install a DIMM, complete the following steps:
1. Read the safety information that begins on page v and "Installation guidelines"
2. Turn off the server and peripheral devices, and disconnect the power cord and
3. Open the retaining clip on each end of the DIMM connector.
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IBM xSeries 306m Types 8849 and 8491: User's Guide
the DIMM that is installed in DIMM connector 1. You can mix compatible DIMMs
from various manufacturers. The third and fourth DIMMs must be installed as a
pair, in DIMM connectors 2 and 4.
be the same size, speed, type, and technology as the DIMMs that are installed in
DIMM connectors 1 and 3. However, the size, speed, type, and technology of the
DIMMs that you install in DIMM connectors 2 and 4 must match each other.
synchronous dynamic random-access memory (SDRAM) with error correcting
code (ECC) DIMMs. These DIMMs must be compatible with the latest PC4200
SDRAM unbuffered DIMM specification.
DIMMs must be installed as the first pair (in DIMM connectors 1 and 3).
displayed indicating that the memory configuration has changed.
on page 17.
all external cables. Remove the cover (see "Removing the cover" on page 18).
Attention: To avoid breaking the retaining clips or damaging the DIMM
connectors, open and close the clips gently.
on page 17.
all external cables. Remove the cover (see "Removing the cover" on page 18).
Attention: To avoid breaking the retaining clips or damaging the DIMM
connectors, open and close the clips gently.