IBM Aptiva M40
(12-10609)                 Video                      Faxback Doc. # 17439

Video Interface

Your system board comes with two external video memory module sockets
(Socket 1 and Socket 2).  You can upgrade the video memory to a maximum of
2 MB.  To upgrade video memory, you MUST INSTALL TWO VIDEO MEMORY MODULES. 
You cannot install a video memory module in one socket and leave the other
socket empty.

NOTE:  Each Memory Module you install must have these specifications: 40-
       pin, surface mount package (SOJ), 256K x 16, 70 nsec, dual CAS DRAM

NOTE:  Before you turn your computer off, you must set the video resolution
       to 640x480x16 (VGA) in OS/2 Warp.

Installing Video Memory

To upgrade video memory, follow these steps:

1.  One end of the video memory module will have a dot, notch, bevel or any
    combination.  Locate the dot, notch or bevel on the video memory
    module.

2.  The socket of the video memory location has one corner of the socket
    angled.  This angled corner is equivalent to Pin 1 or the end that is
    notched, or dotted. Position the end of the memory module that has the
    dot, notch or bevel to coincide with the angled corner of the socket.
    
3.  Align the rounded pins on the sides of the memory module with the
    grooves in the memory module socket. 

4.  Press straight down firmly on the module to insert it into the socket.
    A properly inserted module will sit completely inside the socket.

5.  Reinstall any hardware removed to access the video memory module
    sockets. 

NOTE:  When you have finished installing additional video memory modules,
       you must re-install the video drivers in OS/2 Warp.

Reinstalling Video Drivers in OS/2 Warp

You must reinstall the video drivers when you install additional video
memory.  To reinstall the video drivers in OS/2 Warp, follow these steps:

1.  Double-click on the OS/2 System icon on the OS/2 Desktop.

2.  In the "OS/2 System" window, double-click on the  Command Prompts icon.

3.  Double-click on the OS/2 Window icon. 

4.  At the C:\ prompt, type:

    CD TRIDENT.OS2 
    
    and press <enter>.
    

5.  Type:

    INSTALL 
    
    and press <enter>.  The "Trident Display Drivers Installation"
    window appears.  

NOTE:  The "Trident Display Drivers Installation" notebook automatically
       opens to the Screen section.  If you accidentally open another
       section, just click on the SCREEN tab to get back to the correct
       page.

6.  In the "Screen resolution" box, click on one combination of screen
    width, screen height, and number of colors (for example, 640x480x256).

7.  Click on the tab marked "Refresh".  The Vertical Refresh rates will be
    displayed.

8.  Click on the down arrow in the Vertical Refresh Rate box for the
    resolution you will use.  When you see the list of refresh  rates,
    click on the one you will use.  Click on INSTALL.

9.  When the "Trident Display Installation" window with the message
    "Installation has been completed..." appears, click on OK.

10.  When the C:\ prompt reappears, type:

     EXIT

     and press <enter>.

11.  Shut down OS/2 Warp and reboot (restart) your computer. 

Video Adapter Cards

When you install a video adapter card, you do not need to reset (move)
jumpers on the system board.   The built in video controller will be
disabled automatically.  However, you may need to set jumpers on the video
adapter card.


(CSC/all-10/18/95)

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