Attention: The system board is sensitive to, and can be damaged by, electrostatic discharge (ESD). Before
touching it, establish personal grounding by touching a ground point with one hand or by using an
electrostatic discharge strap.
Before servicing the computer
Carefully read this topic before servicing the computer.
Disconnect the battery
Before replacing any FRU, ensure that you have disconnected the battery by doing the following:
1. Remove the screws
2. Disconnect the battery
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E470, E470c, and E475 Hardware Maintenance Manual
1
, and then remove the bottom cover
3
.
2
.