Dell Vostro 3750 (Early 2011) - Manual (Page 112)

16. Remove the coin battery from the socket.
Installing The Coin-Cell Battery
1. Insert the coin-cell battery into the slot.
2. Install the
system board .
3. Install the ExpressCard cable .
4. Install the system fan .
5. Install the display assembly .
6. Install the WLAN card .
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