Real-Time Clock (Rtc) Battery - Toshiba Equium 5160D Series Preliminary Maintenance Manual

Replacing Memory Modules (RAM)
Before replacing memory modules, be aware of the following points:
When you install modules, you must completely fill at least one bank; that is, you
must completely fill both sockets of the bank.
The computer automatically detects the installed memory, so it does not matter
which bank is used, as long as both sockets are filled.
Both modules in one bank must be the same size. For instance, you cannot install
an 8 MB module in one socket of bank 0 and a 16 MB module in the other socket
of bank 0. However, you could use different size modules in different banks.
To replace memory modules, perform the following procedure and see Figure 4-29.
1. Position the module at a 45° angle relative to the system board . Make sure the small
notch in the middle of the bottom edge of the module aligns with the notch in the
module socket.
2. Insert the bottom edge of the module into the socket, making sure the module is seated
firmly.
3. Hold the module at each end and gently push the top edge forward until the module
snaps into place.
4. Perform steps 1 through 3 for each remaining module.
5. Replace the computer's cover. (Refer to section 4.2.2.)
6. Connect the power cord and all external cables to the computer and turn on the power.

Real-Time Clock (RTC) Battery

This section covers the removal and replacement of the RTC battery.
Removing the RTC Battery
To remove the RTC battery, perform the following procedure and see Figure 4-30.
1. Turn off power to the computer, then disconnect the power cord and all external cables
connected to the computer.
2. Remove the computer's cover. (Refer to section 4.2.1.)
3. Remove the FDD/HDD mounting bracket. (Refer to section 4.7.1.)
4. Using a small, flat-bladed screwdriver, gently pry the battery free from its socket.
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