Lenovo System x3630 M4, Installation And Service Manual

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Table 9. DIMM population sequence (rank sparing mode)
Number of installed
microprocessors
DIMM connector population sequence
1 1, 2
3, 4
5, 6
2 1, 2
7, 8
3, 4
9, 10
5, 6
11, 12
Installing a DIMM
Use this information to install a DIMM.
Note: The odd-numbered DIMM connectors are white-colored, while the even-numbered DIMM connectors
are black-colored.
Step 1. Read the safety information that begins in “Safety” on page v and “Installation guidelines” on
page 36.
Step 2. Turn off the server (see “Turning off the server” on page 26) and all attached peripheral devices.
Disconnect all power cords; then, disconnect all external cables as necessary to replace the device.
Step 3. Remove the server top cover (see “Removing the server top cover” on page 39).
Step 4. If you have the optional hot-swap rear hard disk drive cage installed, rotate it up (see “Rotating the
optional hot-swap rear hard disk drive cage up” on page 40.
Step 5. Remove the PCI riser-card assembly (see “Removing a PCI riser-card assembly” on page 41.
Step 6. Remove the air baffle (see “Removing the air baffle” on page 43.
Step 7. Carefully flip open the retaining clip on each end of the DIMM connector.
Attention: To avoid breaking the retaining clips or damaging the DIMM connectors, open and
close the clips gently.
Chapter 2
.
Installing optional devices
71