ORCHID TECHNOLOGY
=================

   FAHRENHEIT VA/VLB

   Category                     Video                             
   Video Types Supported        XVGA                              
   Video Processor              S3 86C911                         
   Highest Resolution Supported 1280 X 1024                       
   Data Bus Type                32-bit VESA Local Bus             
   Memory Type                  DRAM                              
   Maximum Onboard Memory       2048KB                            

<gopher://bitreich.org/I/th99/v/M-O/50014-1.png>
   

   +------------------------------------------------------------+
   |                        CONNECTIONS                         |
   |------------------------------------------------------------|
   |        Purpose        | Location |   Purpose    | Location |
   |-----------------------+----------+--------------+----------|
   | Microphone jack       |    J1    | Speaker      |    J4    |
   |-----------------------+----------+--------------+----------|
   | Speaker jack          |    J2    | VESA feature |    J5    |
   |                       |          | connector    |          |
   |-----------------------+----------+--------------+----------|
   | 15-pin analog video   |    J3    |              |          |
   | port                  |          |              |          |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 VIDEO INTERRUPT SELECTION                  |
   |------------------------------------------------------------|
   |          IRQ 2/9           |              JP1              |
   |----------------------------+-------------------------------|
   |>> |        Disabled        |       Pins 2 & 3 closed       |
   |---+------------------------+-------------------------------|
   |   |        Enabled         |       Pins 1 & 2 closed       |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |            VOICE ANNOTATION INTERRUPT SELECTION            |
   |------------------------------------------------------------|
   |            IRQ             |              JP4              |
   |----------------------------+-------------------------------|
   |>>   |        IRQ12         |      Pins 9 & 12 closed       |
   |-----+----------------------+-------------------------------|
   |     |        IRQ11         |      Pins 8 & 11 closed       |
   |-----+----------------------+-------------------------------|
   |     |        IRQ10         |      Pins 7 & 10 closed       |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                   DMA CHANNEL SELECTION                    |
   |------------------------------------------------------------|
   |          Channel           |              JP2              |
   |----------------------------+-------------------------------|
   |>>  |           0           |   Pins 2 & 3, 5 & 6 closed    |
   |----+-----------------------+-------------------------------|
   |    |           3           |   Pins 1 & 2, 4 & 5 closed    |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                   I/O ADDRESS SELECTION                    |
   |------------------------------------------------------------|
   |          Address           |              JP3              |
   |----------------------------+-------------------------------|
   |>> |          344h          |       Pins 2 & 3 closed       |
   |---+------------------------+-------------------------------|
   |   |          354h          |       Pins 1 & 2 closed       |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |              640 X 480 REFRESH RATE SELECTION              |
   |------------------------------------------------------------|
   |       Rate        |       SW1/1        |       SW1/2       |
   |-------------------+--------------------+-------------------|
   |       72Hz        |        Off         |        Off        |
   |-------------------+--------------------+-------------------|
   |       72Hz        |         On         |        Off        |
   |-------------------+--------------------+-------------------|
   |       60Hz        |        Off         |        On         |
   |-------------------+--------------------+-------------------|
   |       60Hz        |         On         |        On         |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |              800 X 600 REFRESH RATE SELECTION              |
   |------------------------------------------------------------|
   |       Rate        |       SW1/1        |       SW1/2       |
   |-------------------+--------------------+-------------------|
   |       72Hz        |        Off         |        Off        |
   |-------------------+--------------------+-------------------|
   |       72Hz        |         On         |        Off        |
   |-------------------+--------------------+-------------------|
   |       56Hz        |        Off         |        On         |
   |-------------------+--------------------+-------------------|
   |       60Hz        |         On         |        On         |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |           1024 X 768 REFRESH RATE CONFIGURATION            |
   |------------------------------------------------------------|
   |    Rate     |      Mode      |    SW1/1     |    SW1/2     |
   |-------------+----------------+--------------+--------------|
   |    60Hz     | Non-interlaced |     Off      |     Off      |
   |-------------+----------------+--------------+--------------|
   |    70Hz     | Non-Interlaced |      On      |     Off      |
   |-------------+----------------+--------------+--------------|
   |    43Hz     |   Interlaced   |     Off      |      On      |
   |-------------+----------------+--------------+--------------|
   |    60HZ     | Non-Interlaced |      On      |      On      |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |     1280 X 960/1280 X 1024 REFRESH RATE CONFIGURATION      |
   |------------------------------------------------------------|
   |    Rate     |      Mode      |    SW1/1     |    SW1/2     |
   |-------------+----------------+--------------+--------------|
   |    43Hz     |   Interlaced   |     Off      |     Off      |
   |-------------+----------------+--------------+--------------|
   |    48Hz     |   Interlaced   |      On      |     Off      |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                   SPEAKER TYPE SELECTION                   |
   |------------------------------------------------------------|
   |              Type               |          SW1/4           |
   |---------------------------------+--------------------------|
   |>>   |           Mono            |           Off            |
   |-----+---------------------------+--------------------------|
   |     |          Stereo           |            On            |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |             FACTORY CONFIGURED - DO NOT ALTER              |
   |------------------------------------------------------------|
   |           Switch            |           Position           |
   |-----------------------------+------------------------------|
   |            SW1/3            |             Off              |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                     DRAM CONFIGURATION                     |
   |------------------------------------------------------------|
   |   Size    |   Bank 0   |   Bank 1   |    JP6    |   JP8    |
   |-----------+------------+------------+-----------+----------|
   |  1024KB   | (8) 44256  |    NONE    |   Open    |   Open   |
   |-----------+------------+------------+-----------+----------|
   |  2048KB   | (8) 44256  | (8) 44256  |  Closed   |  Closed  |
   +------------------------------------------------------------+