Gateway E3400 System Manual page 58

7
Press the new battery in the socket with the positive pole up. Make sure
you have pressed the battery down far enough for it to contact the base
of the socket.
8
Replace the right side panel. (See "Replacing the side panels" on page 23
for more information.)
9
Reconnect the power cord and all other cords you removed, then turn
on the system.
10
Using the data you recorded in Step 2, enter the BIOS Setup utility, then
make sure that the system configuration is correct. If the CMOS data is
not correct, change the information in the setup screens as necessary.
Replacing the battery
51