MYLEX CORPORATION

MSL486 SLIMLINE

Processor        80486SX/80487SX/80486DX/ODP486SX/80486DX2
Processor Speed  16/20/25/33/50 (Internal)/66 (Internal)
Chip Set         Headland
Max. onboard DRAM32MB
Cache            None
BIOS             Mylex
Dimensions       330mm x 218mm
I/O Options      Floppy drive interface, IDE interface, parallel port,

                 serial ports (2), VGA port
NPU Options      None

[Image]

                                CONNECTIONS

  Purpose                   Location   Purpose                   Location

  Turbo LED                   P1       Parallel port               P7

  Power LED & keylock         P2       Serial port (COM2)          P8

  Speaker                     P3       Serial port (COM1)          P9

  IDE interface LED           P4       IDE interface               P12

  Reset switch                P5       Floppy drive interface      P13

  VGA port                    P6

                        USER CONFIGURABLE SETTINGS

               Function                   Jumper/Switch       Position

  »   Factory configured - do not              J5                N/A
      alter

  »   Factory configured - do not              J11               N/A
      alter

  »   Parallel port select                  J12 & J13          Closed
      unidirectional (printer)

      Parallel port select                  J12 & J13           Open
      bi-directional

              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

      5MB         (4) 256K x 9    (4) 1M x 9

      8MB         (4) 1M x 9      (4) 1M x 9

      16MB        (4) 4M x 9         NONE

      17MB        (4) 256K x 9    (4) 4M x 9

      20MB        (4) 1M x 9      (4) 4M x 9

      32MB        (4) 4M x 9      (4) 4M x 9

                            VRAM CONFIGURATION

       Size         VRAM (U5,U6,U9,U10)         J6               J7

       512KB                None                On              Off

        1MB             (4) 256K x 4            Off              On

                          CPU SPEED CONFIGURATION

      Size               J8                 J9                 J10

      16MHz           pins 2 & 3        pins 1 & 2      pins 2 & 3 closed
                       closed             closed

      20MHz           pins 1 & 2        pins 1 & 2      pins 2 & 3 closed
                       closed             closed

      25MHz           pins 2 & 3        pins 2 & 3      pins 1 & 2 closed
                       closed             closed

      33MHz           pins 1 & 2        pins 2 & 3      pins 1 & 2 closed
                       closed             closed

     50i MHz          pins 2 & 3        pins 2 & 3      pins 1 & 2 closed
                       closed             closed

     66i MHz          pins 1 & 2        pins 2 & 3      pins 1 & 2 closed
                       closed             closed

                          CPU TYPE CONFIGURATION

    CPU Type         J1            J2             J3             J4

    80486SX         Open          Open        pins 2 & 3        Open
                                                closed

    80487SX         Open       pins 1 & 2     pins 1 & 2      pins 2 & 3
                                 closed         closed         closed

    80486DX         Open       pins 1 & 2     pins 1 & 2      pins 1 & 2
                                 closed         closed         closed

    ODP486SX        Open       pins 1 & 2     pins 1 & 2      pins 2 & 3
                                 closed         closed         closed

    80486DX2        Open       pins 1 & 2     pins 1 & 2      pins 1 & 2
                                 closed         closed         closed