ACER, INC.
==========

   V433S

   Processor         CX486S/80486SX/80486DX/80486DX2              
   Processor Speed   25/33/40/50(internal)/50/66(internal)MHz     
   Chip Set          SIS                                          
   Max. Onboard DRAM 32MB                                         
   Cache             128/256KB                                    
   BIOS              AMI                                          
   Dimensions        254mm x 220mm                                
   I/O Options       32-bit VESA local bus slots (2)              
   NPU Options       None                                         

<gopher://bitreich.org/I/th99/m/A-B/32343-1.png>
   

   +------------------------------------------------------------+
   |                        CONNECTIONS                         |
   |------------------------------------------------------------|
   | Purpose     | Location  | Purpose             |  Location  |
   |-------------+-----------+---------------------+------------|
   | Power LED & | JP2 (pins | Turbo switch        | JP2 (pins  |
   | keylock     |  1 - 5)   |                     |  15 - 17)  |
   |-------------+-----------+---------------------+------------|
   | Speaker     | JP2 (pins | Reset switch        | JP2 (pins  |
   |             |  6 - 10)  |                     |  19 - 20)  |
   |-------------+-----------+---------------------+------------|
   | Turbo LED   | JP2 (pins | 32-bit VESA local   | SL1 & SL2  |
   |             | 12 - 13)  | bus slots           |            |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 USER CONFIGURABLE SETTINGS                 |
   |------------------------------------------------------------|
   |               Function               | Jumper |  Position  |
   |--------------------------------------+--------+------------|
   |>> | CMOS memory normal operation     |   J1   |    Open    |
   |---+----------------------------------+--------+------------|
   |   | CMOS memory clear                |   J1   | pins 2 & 3 |
   |   |                                  |        |   closed   |
   |---+----------------------------------+--------+------------|
   |>> | Fast A20 select CMOS             |  JP20  | pins 2 & 3 |
   |   | configuration                    |        |   closed   |
   |---+----------------------------------+--------+------------|
   |   | Fast A20 select keyboard         |  JP20  | pins 1 & 2 |
   |   |                                  |        |   closed   |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                     DRAM CONFIGURATION                     |
   |------------------------------------------------------------|
   |       Size       |       Bank 0       |       Bank 1       |
   |------------------+--------------------+--------------------|
   |       1MB        |    (4) 256K x 9    |        NONE        |
   |------------------+--------------------+--------------------|
   |       2MB        |    (4) 256K x 9    |    (4) 256K x 9    |
   |------------------+--------------------+--------------------|
   |       4MB        |     (4) 1M x 9     |        NONE        |
   |------------------+--------------------+--------------------|
   |       8MB        |     (4) 1M x 9     |     (4) 1M x 9     |
   |------------------+--------------------+--------------------|
   |       8MB        |     (4) 2M x 9     |        NONE        |
   |------------------+--------------------+--------------------|
   |       16MB       |     (4) 4M x 9     |        NONE        |
   |------------------+--------------------+--------------------|
   |       20MB       |     (4) 1M x 9     |     (4) 4M x 9     |
   |------------------+--------------------+--------------------|
   |       32MB       |     (4) 4M x 9     |     (4) 4M x 9     |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                    CACHE CONFIGURATION                     |
   |------------------------------------------------------------|
   |    Size    |    Bank 0     |    Bank 1     |      TAG      |
   |------------+---------------+---------------+---------------|
   |   128KB    |  (4) 32K x 8  |     NONE      |  (1) 8K x 8   |
   |------------+---------------+---------------+---------------|
   |   256KB    |  (4) 32K x 8  |  (4) 32K x 8  |  (1) 32K x 8  |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 CACHE JUMPER CONFIGURATION                 |
   |------------------------------------------------------------|
   |       Size       |        JP9         |        JP10        |
   |------------------+--------------------+--------------------|
   |      128KB       | pins 1 & 2 closed  | pins 1 & 2 closed  |
   |------------------+--------------------+--------------------|
   |      256KB       | pins 2 & 3 closed  | pins 2 & 3 closed  |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                  CPU SPEED CONFIGURATION                   |
   |------------------------------------------------------------|
   |           Speed            |              JP7              |
   |----------------------------+-------------------------------|
   |           25MHz            |       pins 5 & 6 closed       |
   |----------------------------+-------------------------------|
   |           33MHz            |       pins 1 & 2 closed       |
   |----------------------------+-------------------------------|
   |           40MHz            |   pins 1 & 2, 3 & 4 closed    |
   |----------------------------+-------------------------------|
   |           50iMHz           |       pins 5 & 6 closed       |
   |----------------------------+-------------------------------|
   |           50MHz            |       pins 3 & 4 closed       |
   |----------------------------+-------------------------------|
   |           66iMHz           |       pins 1 & 2 closed       |
   +------------------------------------------------------------+