Compaq notebook m300 stripdown User Manual

Removal and Replacement Procedures    5-11
Removing a PC Card
First, prepare the system for the removal:
CAUTION:
   If the computer is on and running Windows 95, failure to stop a PC Card
before removing it may cause loss of data.

 In Windows 95 or Windows 98
—If the computer is on, stop the PC Card before
you remove it. To stop a PC Card, select the PC Card icon in the taskbar, then select
the PC Card you want to stop. A message displays when the PC Card can be safely
removed.

 In Windows NT 4.0...

5-12    Removal and Replacement Procedures
Inserting a PC Card
CAUTION:
   To prevent damage to the connectors, use minimal pressure as you insert a
PC Card into the PC Card slot.
1.
 With the connector facing the computer and the label side up, insert the PC Card
in the slot, aligning the card on the two guide rails inside the PC Card slot
(Figure 5-10).
2.
 Gently push the card into the slot until the card is seated.
Figure 5-10.
  Inserting a PC Card 

Removal and Replacement Procedures    5-13
5.9  Modem or Modem/NIC Card
1.
 Prepare the computer for disassembly (Section 5.5).
2.
 If attached, disconnect the RJ-11 and RJ-45 cables from the computer.
3.
 Turn the computer upside down with the front facing forward.
4.
 Remove the two screws that secure the modem or modem/NIC card cover to the base
assembly 


 (Figure 5-11).
5.
 Lift the front edge of the cover and swing it back 
.
6.
 Remove the cover .
Figure 5-11.
  Removing the Modem or Modem/NIC...

5-14    Removal and Replacement Procedures
7.
 Lift up on the back of the modem or modem/NIC card 

, and swing it forward to
disconnect it from the system board 
 (Figure 5-12).
8.
 Use the connector removal tool to disconnect all cables connected to the card .
9.
 Remove the card.
Figure 5-12.
  Removing the Modem or Modem/NIC Card
Reverse the above procedure to install the modem or modem/NIC card. 

Removal and Replacement Procedures    5-15
5.10  Real Time Clock (RTC) Battery
1.
 Prepare the computer for disassembly (Section 5.5).
2.
 Turn the computer upside down with the rear panel facing forward.
3.
 Remove the RTC battery cover by lifting it at the indentation 

 (Figure 5-13).
4.
 Remove the battery from the base enclosure .
5.
 Use the connector removal tool to disconnect the RTC battery cable from the system
board 

.
6.
 Remove the battery.
Figure 5-13.
  Removing the RTC Battery
Reverse...

5-16    Removal and Replacement Procedures
5.11  Keyboard
1.
 Prepare the computer for disassembly (Section 5.5).
2.
 Press down on each of the three release tabs 

 along the top edge of the keyboard
(Figure 5-14).
3.
 Swing the top edge of the keyboard up and forward 
.
Figure 5-14.
  Releasing the Keyboard 

Removal and Replacement Procedures    5-17
4.
 Use the connector removal tool to release the keyboard cable from the ZIF connector


 (Figure 5-15).
5.
 Use the connector removal tool to disconnect the keyboard cable 
.
6.
 Remove the keyboard.
Figure 5-15.
  Disconnecting the Keyboard Cable
Reverse the above procedure to install the keyboard. 

5-18    Removal and Replacement Procedures
5.12  Memory Expansion
Removing the Memory Expansion Board
WARNING:
   Failure to unplug the power cord and to remove the battery pack before
installing a memory expansion board can damage the equipment and expose you to
the risk of electrical shock.
CAUTION:
   Electrostatic discharge (ESD) can damage electronic components. Before
beginning this procedure, ensure that you are properly grounded. For more
information, refer to “Preventing Electrostatic Damage” in...

Removal and Replacement Procedures    5-19
Installing the Memory Expansion Board
1.
 To add a memory board, insert the memory expansion board into the empty memory
expansion slot at a 45-degree angle 

. Then slide it gently into place until it is
seated while tilted (Figure 5-17).
NOTE:  
All memory expansion boards supported by the computer are keyed (notched) to
ensure correct positioning.
2.
 Push the memory expansion board down until the plastic retention clips  snap into
place.
3.
 Replace the...

5-20    Removal and Replacement Procedures
5.13  Switch Cover
1.
 Prepare the computer for disassembly (Section 5.5).
2.
 Remove the keyboard (Section 5.11).
3.
 Position the computer so the rear panel faces forward.
4.
 Remove the two screws from the rear panel of the computer that secure the switch
cover to the base assembly (Figure 5-18).
Figure 5-18.
  Removing the Switch Cover Screws