AST RESEARCH, INC.
==================

   ADVANTAGE! 610/611 486 (202728-101)

Processor  80486SX/80487SX/ODP486/ODPR486/80486DX/80486DX2/P24T/CX5X86 
Processor  33/66(internal)/100(internal)MHz                            
Speed      
Chip Set   Unidentified                                                
Max.       32MB                                                        
Onboard    
DRAM       
Cache      None                                                        
BIOS       AST                                                         
Dimensions 220mm x 220mm                                               
I/O        Floppy drive interface, IDE interface, parallel port, PS/2  
Options    mouse port, serial port, 8514 video pass through, VGA port, 
           riser slot, CD audio connector, MIDI/joystick port header,  
           line out connector, microphone connector, line in           
           connector, speaker out connector                            
NPU        None                                                        
Options    

<gopher://bitreich.org/I/th99/m/A-B/33250-1.png>
   

   +------------------------------------------------------------+
   |                        CONNECTIONS                         |
   |------------------------------------------------------------|
   | Purpose         | Location | Purpose            | Location |
   |-----------------+----------+--------------------+----------|
   | Line out        |   CN1    | Power LED          |   E12    |
   | connector       |          |                    |          |
   |-----------------+----------+--------------------+----------|
   | Microphone      |   CN2    | IDE interface LED  |   E13    |
   | connector       |          |                    |          |
   |-----------------+----------+--------------------+----------|
   | Line in         |   CN3    | CD audio connector |    J2    |
   | connector       |          |                    |          |
   |-----------------+----------+--------------------+----------|
   | Speaker out     |   CN4    | MIDI/joystick port |    J4    |
   | connector       |          | header             |          |
   |-----------------+----------+--------------------+----------|
   | PS/2 mouse port |   CN5    | 8514 video pass    |   J19    |
   |                 |          | through connector  |          |
   |-----------------+----------+--------------------+----------|
   | Serial port     |   CN6    | IDE interface      |   J22    |
   |-----------------+----------+--------------------+----------|
   | Parallel port   |   CN7    | Floppy drive       |   J24    |
   |                 |          | interface          |          |
   |-----------------+----------+--------------------+----------|
   | VGA port        |   CN8    | Chassis fan power  |   J28    |
   |-----------------+----------+--------------------+----------|
   | Reset switch    |   E11    | Riser slot         |   SL1    |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 USER CONFIGURABLE SETTINGS                 |
   |------------------------------------------------------------|
   |               Function               | Jumper |  Position  |
   |--------------------------------------+--------+------------|
   |>> | Factory configured - do not      |   E1   |    Open    |
   |   | alter                            |        |            |
   |---+----------------------------------+--------+------------|
   |>> | Factory configured - do not      |   E2   |    Open    |
   |   | alter                            |        |            |
   |---+----------------------------------+--------+------------|
   |>> | On board video enabled           |   E3   |   Closed   |
   |---+----------------------------------+--------+------------|
   |   | On board video disabled          |   E3   |    Open    |
   |---+----------------------------------+--------+------------|
   |>> | Monitor type select color        |   E4   |    Open    |
   |---+----------------------------------+--------+------------|
   |   | Monitor type select monochrome   |   E4   |   Closed   |
   |---+----------------------------------+--------+------------|
   |>> | Password enabled                 |   E5   |    Open    |
   |---+----------------------------------+--------+------------|
   |   | Password disabled                |   E5   |   Closed   |
   |---+----------------------------------+--------+------------|
   |>> | Factory configured - do not      |   E8   |    Open    |
   |   | alter                            |        |            |
   |---+----------------------------------+--------+------------|
   |>> | Flash BIOS normal operation      |  E14   |    Open    |
   |---+----------------------------------+--------+------------|
   |   | Flash BIOS force update at boot  |  E14   |   Closed   |
   |---+----------------------------------+--------+------------|
   |>> | Factory configured - do not      |  E17   | Pins 2 & 3 |
   |   | alter                            |        |   closed   |
   |---+----------------------------------+--------+------------|
   |>> | Factory configured - do not      |  E18   |    Open    |
   |   | alter                            |        |            |
   |------------------------------------------------------------|
   | Note: The location of jumpers E1, E8 are unidentified.     |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                     DRAM CONFIGURATION                     |
   |------------------------------------------------------------|
   |       Size       |       Bank 0       |       Bank 1       |
   |------------------+--------------------+--------------------|
   |       4MB        |    (1) 1M x 32     |        None        |
   |------------------+--------------------+--------------------|
   |       5MB        |    (1) 1M x 32     |   (1) 256K x 32    |
   |------------------+--------------------+--------------------|
   |       8MB        |    (1) 4M x 32     |        None        |
   |------------------+--------------------+--------------------|
   |       16MB       |    (1) 4M x 32     |    (1) 4M x 32     |
   |------------------+--------------------+--------------------|
   |       17MB       |    (1) 4M x 32     |   (1) 256K x 32    |
   |------------------+--------------------+--------------------|
   |       20MB       |    (1) 4M x 32     |    (1) 1M x 32     |
   |------------------+--------------------+--------------------|
   |       32MB       |    (1) 4M x 32     |    (1) 4M x 32     |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                   CPU TYPE CONFIGURATION                   |
   |------------------------------------------------------------|
   |   Type   |      E6      |   E7   |     E9     |    E10     |
   |----------+--------------+--------+------------+------------|
   | 80486SX  |  Pins 1 & 2  |  Open  | Pins 2 & 3 | Pins 1 & 2 |
   |          |    closed    |        |   closed   |   closed   |
   |----------+--------------+--------+------------+------------|
   | 80487SX  |  Pins 1 & 2  | Closed | Pins 1 & 2 | Pins 2 & 3 |
   |          |    closed    |        |   closed   |   closed   |
   |----------+--------------+--------+------------+------------|
   |  ODP486  |  Pins 1 & 2  | Closed | Pins 1 & 2 | Pins 2 & 3 |
   |          |    closed    |        |   closed   |   closed   |
   |----------+--------------+--------+------------+------------|
   | ODPR486  |  Pins 1 & 2  | Closed | Pins 2 & 3 | Pins 2 & 3 |
   |          |    closed    |        |   closed   |   closed   |
   |----------+--------------+--------+------------+------------|
   | 80486DX  |  Pins 1 & 2  | Closed | Pins 2 & 3 | Pins 2 & 3 |
   |          |    closed    |        |   closed   |   closed   |
   |----------+--------------+--------+------------+------------|
   | 80486DX2 |  Pins 1 & 2  | Closed | Pins 2 & 3 | Pins 2 & 3 |
   |          |    closed    |        |   closed   |   closed   |
   |----------+--------------+--------+------------+------------|
   |   P24T   |  Pins 2 & 3  | Closed | Pins 2 & 3 | Pins 2 & 3 |
   |          |    closed    |        |   closed   |   closed   |
   |------------------------------------------------------------|
   | Note: Board will only accept 3.345v CPU's.                 |
   +------------------------------------------------------------+