Lenovo System x3750 M4, Инструкция по установке и обслуживанию

Страница: 249 / 982

To install a DIMM, complete the following steps:
Step 1. Read the safety information, see “Safety” on page v and “Installation guidelines” on page 38.
Step 2. Turn off the server and peripheral devices and disconnect the power cords and all external cables,
if necessary.
Step 3. Remove the top cover (see “Removing the server top cover” on page 216).
Step 4. 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.
Step 5. 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.
DIMM
Retaining
clip
Retaining
clip
Step 6. Turn the DIMM so that the DIMM keys align correctly with the connector.
Step 7. Insert the DIMM into the connector by aligning the edges of the DIMM with the slots at the ends of
the DIMM connector (see “System-board optional-device connectors” on page 32 for the locations
of the DIMM connectors).
Step 8. Firmly press the DIMM straight down into the connector by applying pressure on both ends of the
DIMM simultaneously. The retaining clips snap into the locked position when the DIMM is firmly
seated in the connector.
Note: If there is a gap between the DIMM and the retaining clips, the DIMM has not been correctly
inserted; open the retaining clips, remove the DIMM, and then reinsert it.
Step 9. Replace the DIMM air baffle (see “Replacing the DIMM air baffle” on page 221) or the
microprocessor and memory expansion tray (see “Replacing the microprocessor and memory
expansion tray assembly” on page 125), if you removed it earlier.
Step 10. Reconnect the power cord and any cables that you removed.
Step 11. Replace the cover (see “Replacing the server top cover” on page 216).
Chapter 6
.
Removing and replacing components
235