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104749 06/15/1995 04:10 PM 05/03/2001 04:21 PM
Is the Toshiba T4900CT machine supported under ODT 3.0 and UNIX 4.2?
Keywords
toshiba t4900 t4900CT laptop machine supported certified tested unix odt 3.0 ide deskstation
Release
SCO Open Server Release 3.0
SCO Open Desktop Release 3.0
SCO UNIX System V/386 Release 3.2 Operating System Version 4.2

Problem
          Is the Toshiba T4900CT supported by SCO software?


Solution
          Yes, this machine has been certified by SCO for use with
          SCO Open Server 3.0, SCO Open Desktop 3.0 and SCO UNIX 
          Operating System Version 4.2.  It is scheduled to be 
          included in a future version of the SCO Hardware 
          Compatibility Handbook (HCH).

          There are some issues with the T4900CT:

          I. IDE disk

          One issue with the Toshiba T4900CT is that the system hangs 
          during SCO UNIX and SCO Open Desktop installation if the disk 
          is configured incorrectly.

          SCO Open Desktop:

          The installation goes through N1.  While reading the
          N2 diskette, it hangs after this message:

            mem: total = xxxxk, kernel = xxxxk, user = xxxxk
            rootdev = 2/96, swapdev = 31/8, pipedev = <none>, dumpdev = 31/8
            nswap = 32, swplo = 32, Hz = 100
            kernel: i/o bufs = xxxk"

          SCO UNIX Operating System:
          
          The installation hangs on the "System V Hard Disk 
          Initialization" selection screen at the point of 
          keyboard input:

             Initialization Selection:

               1.  Fully Configurable Initialization
               2.  Automatic Initialization(use system defaults)
               3.  Exit Installation

             Enter your choice: 
        
          The system hangs after keying in the appropriate selection.


          SCO UNIX Operating System and SCO Open Desktop will install on a 
          Toshiba T4900CT under these conditions:

          The IDE hard drive must be configured for "Standard IDE" 
          rather than "Enhanced IDE".

          This will reduce the available size of your disk from
          810MB to 520MB.

          To get into the BIOS: 

          1. Switch on the machine while pressing the <Esc> key.
          You will see the message "Check system. Then press <F1> key."
          2. Press <F1>.
          3. Use the arrow keys to go to the Hard Disk field and then use
          the space bar to change the value to "Standard IDE".
          4. Use the "End" and "Y" keys to save the new BIOS values.


          II. Attachment to DeskStation

          On early versions of the T4900CT, there is a problem with
          the Gate Array.  This shows up as being unable to install
          using an Adaptec SCSI controller (typically a 1542CF) in the
          DeskStation.  The SCSI bus is not scanned by the system
          diagnostics.

          There are three possible solutions:

          1. This problem should only occur on machines that
          also have the Pentium "fdiv" problem. 

          Return the machine to Toshiba to have the Pentium processor
          upgraded. Toshiba is also exchanging the Gate Array at the 
          same time.

          2. You may be able to install by lowering the SCSI DMA rate
          to 3.3Mb/sec, disabling the internal CPU cache in the
          System Setup, and disabling the SCSI BIOS on the Adaptec
          SCSI card.

          3. Try another SCSI adapter; it has been reported that the
          Future Domain controller works.


          III. Mousepoint Mouse

          The Mousepoint mouse may appear to "stick", when scologin is
          run. A supplement is available to resolve this issue.


          IV. T4900CT Display Specifications

          High Resolution Thin Film Transistor(TFT) color LCD, 640*480 
          pixel Resolution, 10.4" diagonal display size.

          There is no SCO graphics driver for the "C & T - F66545" chipset.
          This model is only supported at standard VGA graphics.


          V. Networking using the 3-COM Etherlink III 3C589 PCMCIA card

          Use "netconfig" to configure the card on interrupt 10.
          Remember to install the card in slot 1 and not to use
          the Auto-Configure option in "netconfig".

          Note: Networking does not function unless the actual card
          is reconfigured using the 3-COM supplied utility "3c589cfg".

          The 3-COM diagnostics show that interrupt 10 is being used
          by "something else".

          Use the configuration utility "3c589cfg" to reconfigure
          the interrupt on the card to another value (eg 3), in order
          to get the card to function.


          VI. Features of the T4900CT

              Processor: Intel Pentium (Includes numeric coprocessor) - 75MHZ
              Memory:    The system has 8MB on the motherboard and is 
                         expandable to 40MB using Toshiba RAM cards.
              Disk:      810MB
              Graphics:  Based on Chips and Technology's F66545 graphics 
                         chipset.
              Ports:     Serial - 1 x 9 way Port.
                         Parallel - 1 (Bidirectional) Port
                         PS/2 Keyboard Port
                         PS/2 Mouse Port
                         VGA Monitor Port
                         PCMCIA Rel 2.0 Type II
                         PCMCIA Rel 2.0 Type III
                         Toshiba internal memory slot
                         Mousepoint mouse
                         DeskStation IV Port

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