1070 Fan Assembly - Lenovo THINKPAD L420 Hardware Maintenance Manual

Table 15. Removal steps of DIMM (continued)
Note: If only one DIMM is used on the computer you are servicing, the card must be installed in SLOT-0 (
slot), but not in SLOT-1 (
When installing: Insert the notched end of the DIMM into the socket. Press the DIMM firmly, and pivot it until it
snaps into place. Make sure that it is firmly fixed in the slot and does not move easily.

1070 Fan assembly

For access, remove these FRUs in order:
• "1010 Battery pack" on page 57
• "1040 Thermal cover" on page 61
Attention:
• Do not handle the fan roughly. Improper handling of the fan can cause distortion or deformation and
imperfect contact with components.
• Do not touch or apply any excessive force to the fan motor. It might cause damage to the fan assembly or
might cause the computer to malfunction.
Table 16. Removal steps of fan assembly
When installing: Make sure that the fan connector is attached firmly to the system board.
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Hardware Maintenance Manual
b
: upper slot).
b
a
a
: lower