Lenovo ThinkPad Edge E420 Hardware Maintenance Manual page 84

Table 23. Removal steps of system board (continued)
• Make sure that you route the cables correctly and you tape up the cables in the proper positions as shown in
the following figure.
• When you route the cables, make sure that they are not subjected to any tension. Tension could cause the cables
to be damaged by the cable guides, or a wire to be broken.
Table 24. Removal steps of fan assembly
2
Loosen the screws , but do not remove them.
Note: Different models might have different numbers of screws in step
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Hardware Maintenance Manual
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