Gateway 450ROG Service Manual page 66

15
Locate the old battery on the system board.
CMOS
battery
16
Insert the small flat-blade screwdriver or non-marring tool under the old
battery and gently pry it up until it pops out of the socket.
17
Make sure the positive (+) side of the new battery is facing up, then press
the battery into the socket until it snaps into place.
18
Reassemble the notebook.
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Replacing the CMOS battery
61