Toshiba Qosmio F20 (PQF22) - Manual (Page 204)

9-12 User’s Manual
Optional Devices
If you install a memory module that is not compatible with the computer,
a beep will sound when you turn on the power. If the incompatible module is
installed in slot A, there will be a long beep (1 second) followed by one
short beep (0.5 seconds), while if the incompatible module is in slot B, there
will be a long beep followed by two short beeps. In the event both modules
are incompatible, there will be a long beep followed by one short beep,
a pause, and then a long beep followed by two short beeps. In all instances
you should shut down the computer and remove the incompatible
module(s).
Installing memory module
There are slots for two memory modules, one over the other. The
procedures are the same for installing either module.
1. Set the computer to boot mode and turn the computer’s power off.
Make sure the Power indicator is off. Refer to the Turning off the power
section in Chapter 3, Getting Started .
2. Remove AC adaptor and all cables connected to the computer.
3. Turn the computer upside down and remove the battery pack.
Refer to Replacing the battery pack section in Chapter 6, Power ,
for details.
4. Loosen the screw securing the memory module cover. The screw is
attached to the cover to prevent it from being lost.
5. Slide your fingernail or a thin object under the cover and lift it off.
Removing the memory module cover
Use a #0 point Phillips screwdriver to remove and fasten the screws.
Use of an incorrect screwdriver can damage the screw heads.
Memory module cover
Screw