
CSS LABORATORIES, INC.

MAXSYS 486MTE/VL

Processor       80486SX/80487SX/80486DX/80486DX2/Pentium Overdrive
Processor Speed 25/33/50(internal)/50/66(internal)MHz
Chip Set        OPTI
Max. Onboard    256MB (128MB on CPU module)
DRAM
Cache           64/128/256/512KB
BIOS            AMI
Dimensions      330mm x 218mm
I/O Options     CPU module slot, 32-bit VESA local bus slot (1), floppy
                drive interface, IDE interface, parallel port, serial
                ports (2)
NPU Options     4167

[Image]

                                CONNECTIONS

  Purpose                Location     Purpose                  Location

  Speaker                   J4        Serial port 2              PJ4

  Power LED &               J5        IDE interface              PJ5
  keylock

  IDE interface LED        J38        Parallel port              PJ2A
                                      (alternate)

  Equipment panel          J39        Serial port 1              PJ3A
  connector                           (alternate)

  IDE interface LED        J40        Serial port 2              PJ4A
                                      (alternate)

  Turbo LED/reset          J41        Keyboard connector         J11A
  switch                              (alternate)

  Floppy drive             PJ1        Keyboard connector         J11B
  interface                           (alternate)

  Parallel port            PJ2        CPU module slot            SL1

  Serial port 1            PJ3        32-bit VESA Local          SL2
                                      bus slot

  Note: The keyboard, parallel and serial connections marked "alternate"
  are used for easier placement of cables. Do not use a primary and an
  alternate connection jointly.

                        USER CONFIGURABLE SETTINGS

                Function                     Jumper          Position

     On board floppy controller               J1            pins 2 & 3
      enabled                                                 closed

      On board floppy controller               J1            pins 1 & 2
      disabled                                                closed

     On board IDE controller enabled          J2            pins 2 & 3
                                                              closed

      On board IDE controller disabled         J2            pins 1 & 2
                                                              closed

     CPU bus clock select synchronous         JP1           pins 1 & 2
                                                              closed

      CPU bus clock 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

                         SERIAL PORT CONFIGURATION

      Port 1              PJ6                S0                 S1

     Disabled             N/A             pins 1 & 2        pins 1 & 2
                                           closed             closed

     COM1 IRQ4         pins 1 & 2         pins 2 & 3        pins 2 & 3
                         closed            closed             closed

     COM2 IRQ3         pins 1 & 3         pins 1 & 2        pins 2 & 3
                         closed            closed             closed

                         SERIAL PORT CONFIGURATION

      Port 2              PJ6                S2                 S3

     Disabled             N/A             pins 1 & 2        pins 1 & 2
                                           closed             closed

     COM1 IRQ4         pins 2 & 4         pins 1 & 2        pins 2 & 3
                         closed            closed             closed

     COM2 IRQ3         pins 3 & 4         pins 2 & 3        pins 2 & 3
                         closed            closed             closed

                        PARALLEL PORT CONFIGURATION

       Port                P0                P1                PRT

     Disabled          pins 1 & 2         pins 1 & 2           N/A
                         closed            closed

    LPT 1 IRQ7         pins 2 & 3         pins 1 & 2        pins 2 & 3
                         closed            closed             closed

    LPT 2 IRQ5         pins 2 & 3         pins 2 & 3        pins 1 & 2
                         closed            closed             closed

    LPT 3 IRQ 7        pins 1 & 2         pins 2 & 3        pins 2 & 3
                         closed            closed             closed

                            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

     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

     196MB      (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 module board.

   CPU SPEED CONFIGURATION

  Speed      JP6       JP7

  25MHz      Open      Open

  33MHz      Open     Closed

  50iMHz     Open      Open

  50MHz     Closed    Closed

  66iMHz     Open     Closed

[Image]

                        USER CONFIGURABLE SETTINGS

                Function                     Jumper          Position

     Factory configured - do not             JP8              Open
      alter

     Factory configured - do not             JP77             Open
      alter

                  BASE MEMORY CONFIGURATION

       Memory                JP20                JP21

        384KB          pins 2 & 3 closed         Open

        512KB          pins 2 & 3 closed        Closed

        640KB          pins 1 & 2 closed          N/A

            CACHE CONFIGURATION

     Size          Bank 0        Bank 1

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

     128KB       (4) 16K x 8   (4) 16K x 8

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

     512KB       (4) 64K x 8   (4) 64K x 8

                         CACHE CONFIGURATION (TAG)

       Size               U55               U56                U72

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

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

       256KB           (1) 8K x 8        (1) 8K x 8       (1) 16K x 1 or
                                                           (1) 64K x 1

       512KB          (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 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

                          CPU TYPE CONFIGURATION

           Type                      JP10                   JP11

          80486SX             pins 2 & 3 closed             Open

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

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

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

