
CSS LABORATORIES, INC.

MAXSYS 462, 4/100 VL

Processor       80486SX/80487SX/80486DX/80486DX2/Pentium Overdrive
Processor Speed 25/33/50(internal)/50/66(internal)MHz
Chip Set        OPTI
Max. Onboard    256MB
DRAM
Cache           64/128/256/512KB
BIOS            Unidentified
Dimensions      355mm x 305mm
I/O Options     32-bit VESA local bus slot, CPU slot, floppy drive
                interface, IDE interface, parallel port, auxiliary
                parallel port, serial ports (2), auxiliary serial ports
                (2), auxiliary keyboard connectors (2)
NPU Options     4167

[Image]

                                CONNECTIONS

  Purpose                Location      Purpose                 Location

  Speaker                   J4         Parallel port             PJ2

  Power LED & keylock       J5         Serial port 1             PJ3

  Front panel               J39        Serial port 2             PJ4
  connector

  External IDE              J40        IDE interface             PJ5
  interface LED

  Reset switch          J41 pins 1 &   Auxiliary parallel        PJ2A
                             2         port

  Turbo switch          J41 pins 3 &   Auxiliary serial          PJ3A
                             4         port 1

  Auxiliary keyboard       J11B        Auxiliary serial          PJ4A
  connector                            port 2

  Auxiliary keyboard       J11A        CPU slot                  SL1
  connector

  IDE interface LED         LED        32-bit VESA local         SL2
                                       bus slot

  Floppy drive              PJ1
  interface

                        USER CONFIGURABLE SETTINGS

                Function                     Jumper          Position

      Floppy drive interface enabled           FDD           pins 2 & 3
                                                              closed

      Floppy drive interface disabled          FDD           pins 1 & 2
                                                              closed

      IDE interface enabled                    IDE           pins 2 & 3
                                                              closed

      IDE interface disabled                   IDE           pins 1 & 2
                                                              closed

     CPU type select synchronous              JP1           pins 1 & 2
                                                              closed

      CPU type select asynchronous             JP1           pins 2 & 3
                                                              closed

      Monitor type select color                JP9           pins 2 & 3
                                                              closed

      Monitor type select monochrome           JP9           pins 1 & 2
                                                              closed

     Factory configured - do not alter       JP20             Open

                         DRAM CONFIGURATION

    Size         Bank 0       Bank 1        Bank 2        Bank 3

     4MB       (4) 1M x 9      NONE          NONE          NONE

     8MB       (4) 1M x 9   (4) 1M x 9       NONE          NONE

    12MB       (4) 1M x 9   (4) 1M x 9    (4) 1M x 9       NONE

    16MB       (4) 1M x 9   (4) 1M x 9    (4) 1M x 9    (4) 1M x 9

    16MB       (4) 4M x 9      NONE          NONE          NONE

    20MB       (4) 1M x 9   (4) 4M x 9       NONE          NONE

    24MB       (4) 1M x 9   (4) 1M x 9    (4) 4M x 9       NONE

    24MB       (4) 1M x 9   (4) 4M x 9    (4) 1M x 9       NONE

    28MB       (4) 1M x 9   (4) 1M x 9    (4) 4M x 9    (4) 1M x 9

    28MB       (4) 1M x 9   (4) 4M x 9    (4) 1M x 9    (4) 1M x 9

    32MB       (4) 4M x 9   (4) 4M x 9       NONE          NONE

    36MB       (4) 1M x 9   (4) 4M x 9    (4) 4M x 9       NONE

    36MB       (4) 4M x 9   (4) 4M x 9    (4) 1M x 9       NONE

    40MB       (4) 1M x 9   (4) 1M x 9    (4) 4M x 9    (4) 4M x 9

    40MB       (4) 1M x 9   (4) 4M x 9    (4) 4M x 9    (4) 1M x 9

    40MB       (4) 4M x 9   (4) 4M x 9    (4) 1M x 9    (4) 1M x 9

    48MB       (4) 4M x 9   (4) 4M x 9    (4) 4M x 9       NONE

    52MB       (4) 1M x 9   (4) 4M x 9    (4) 4M x 9    (4) 4M x 9

  Note: Banks 2 & 3 are located on the CPU card.

                       DRAM CONFIGURATION (CONT)

     Size         Bank 0         Bank 1         Bank 2        Bank 3

     52MB       (4) 4M x 9     (4) 4M x 9     (4) 4M x 9    (4) 1M x 9

     64MB       (4) 4M x 9     (4) 4M x 9     (4) 4M x 9    (4) 4M x 9

     64MB       (4) 16M x 9       NONE           NONE          NONE

    128MB       (4) 16M x 9   (4) 16M x 9        NONE          NONE

    192MB       (4) 16M x 9   (4) 16M x 9    (4) 16M x 9       NONE

    256MB       (4) 16M x 9   (4) 16M x 9    (4) 16M x 9    (4) 16M x 9

  Note: Banks 2 & 3 are located on the CPU card.

               CPU SPEED CONFIGURATION

      Speed              JP6               JP7

      25MHz             Open              Open

      33MHz             Open             Closed

      50iMHz            Open              Open

      50MHz            Closed            Closed

      66iMHz            Open             Closed

  Note: See also JP1 in User Configurable Settings.

                        PARALLEL PORT CONFIGURATION

     LPT          IRQ       I/O address      PRT         P0         P1

     N/A          N/A        Disabled        N/A       1 & 2      1 & 2

    LPT1         IRQ7          3BCh         2 & 3      2 & 3      1 & 2

    LPT2         IRQ5          278h         1 & 2      2 & 3      2 & 3

    LPT3         IRQ7          378h         2 & 3      1 & 2      2 & 3

  Note: Pins designated should be in the closed position

                        SERIAL PORT 1 CONFIGURATION

    COM          IRQ        I/O address      PJ6         S0         S1

    N/A          N/A         Disabled        N/A       1 & 2      1 & 2

   COM 1         IRQ4          3F8h         1 & 2      2 & 3      2 & 3

   COM 2         IRQ3          2F8h         1 & 3      1 & 2      2 & 3

  Note: Pins designated should be in the closed position

                        SERIAL PORT 2 CONFIGURATION

    COM          IRQ        I/O address      PJ6         S2         S3

    N/A          N/A         Disabled        N/A       1 & 2      1 & 2

   COM 1         IRQ4          3F8h         2 & 4      1 & 2      2 & 3

   COM 2         IRQ3          2F8h         3 & 4      2 & 3      2 & 3

  Note: Pins designated should be in the closed position

[Image]

                        USER CONFIGURABLE SETTINGS

                Function                     Jumper          Position

     Factory configured - do not             JP8              N/A
      alter

     Factory configured - do not             JP77             N/A
      alter

              CACHE CONFIGURATION

      Size          Bank 0          Bank 1

      64KB        (4) 8K x 8      (4) 8K x 8

     128KB        (4) 32K x 8        NONE

     256KB        (4) 32K x 8    (4) 32K x 8

     512KB        (4) 128K x 8       NONE

                          CACHE TAG CONFIGURATION

     Size       TAG (U54)      TAG (U55)     TAG (U56)       TAG (U72)

     64KB          NONE       (1) 8K x 8        NONE        (1) 16K/64K x
                                                                 1

    128KB          NONE       (1) 8K x 8        NONE        (1) 16K/64K x
                                                                 1

    256KB          NONE       (1) 8K x 8     (1) 8K x 8     (1) 16K/64K x
                                                                 8

    512KB          NONE       (1) 32K x 8       NONE        (1) 64K x 1

                        CACHE JUMPER CONFIGURATION

  Size     JP2     JP3       JP4       JP5      JP16      JP17     JP18

  64KB      2 &    Open      Open     Open      Open      Open     Open
            3

  128KB     1 &   Closed     Open     Open     Closed     Open     Open
            2

  256KB     2 &   Closed    Closed    Open     Closed    Closed    Open
            3

  512KB     1 &   Closed    Closed   Closed    Closed    Closed    Closed
            2

  Note: Pins designated should be in the closed position.

                          CPU TYPE CONFIGURATION

           Type                     JP10                    JP11

          80486SX             pins 2 & 3 closed             Open

          80487SX             pins 1 & 2, 3 & 4       pins 1 & 2 closed
                                   closed

          80486DX             pins 1 & 2, 3 & 4       pins 2 & 3 closed
                                   closed

         80486DX2             pins 1 & 2, 3 & 4       pins 2 & 3 closed
                                   closed

     Pentium Overdrive        pins 1 & 2, 3 & 4       pins 1 & 2 closed
                                   closed

         CPU SPEED CONFIGURATION

        Speed                JP12

        25MHz         pins 2 & 3 closed

        33MHz         pins 2 & 3 closed

       50iMHz         pins 2 & 3 closed

        50MHz         pins 1 & 2 closed

       66iMHz         pins 2 & 3 closed

                  BASE MEMORY CONFIGURATION

        Size                 JP20                 JP21

        384KB          pins 2 & 3 closed          Open

        512KB          pins 2 & 3 closed         Closed

        640KB          pins 1 & 2 closed      Any setting

