Lenovo x3650 M4 BD 5466, Инструкция по установке и обслуживанию

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Table 36. Memory rank sparing mode DIMM population sequence (continued)
Number of DIMMs
Number of installed
microprocessor
DIMM connector
Ninth pair of DIMMs 2 20, 21
Tenth pair of DIMMs
2 23, 24
Eleventh pair of DIMMs 2 19, 22
Twelfth pair of DIMMs 2 15, 18
Note: DIMM connectors 3, 6, 7, 10, 15, 18, 19, and 22 are not used in memory rank sparing mode when UDIMMs
are installed in the server.
Replacing a memory module
Use this information to replace a memory module.
Note: Before you install an additional memory module, go to Table 2 “Power supply configurations” on
page 9 for detailed power supply configurations.
Step 1. Read the safety information that begins on “Safety” on page v and “Installation guidelines”
on page 34.
Step 2. Turn off the server and peripheral devices and disconnect the power cords and all external cables,
if necessary.
Step 3. Remove the cover (see “Removing the cover” on page 240).
Step 4. Remove the air baffle (see “Removing the air baffle” on page 241).
Step 5. Carefully open the retaining clips on each end of the DIMM connector and remove the DIMM.
Attention: To avoid breaking the retaining clips or damaging the DIMM connectors, open and
close the clips gently.
Figure 188. DIMM installation
Step 6. Touch the static-protective package that contains the DIMM to any unpainted metal surface on the
outside of the server. Then, remove the DIMM from the package.
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Lenovo System x3650 M4 Installation and Service Guide