JETPRO INFOTECH COMPANY, LTD.

MB-60 EISA486/33/50

Processor         80486DX/80486DX2
Processor Speed   33/50(internal)/50/66(internal)MHz
Chip Set          OPTI
Max. Onboard DRAM 128MB
SRAM Cache        64/128/256
BIOS              AMI
Dimensions        330.2mm x 218.4mm
I/O Options       None
NPU Options       4167

[Image]

                             CONNECTIONS

  Purpose               Location    Purpose                Location

  Power LED & keylock      J1       Turbo LED                 J4

  Speaker                  J2       Reset switch              J5

  Turbo switch             J3

                        USER CONFIGURABLE SETTINGS

                Function                    Jumper           Position

  »   Power good signal detect from           JP2           pins 1 & 2
      board                                                   closed

      Power good signal detect from           JP2           pins 2 & 3
      power supply                                            closed

  »   Monitor type select color               JP3             closed

      Monitor type select monochrome          JP3              open

      ATCLK select iOSC/1                     JP6           pins 1 & 2
                                                              closed

      ATCLK select iOSC/2                     JP6           pins 2 & 3
                                                              closed

            DRAM CONFIGURATION

     Size         Bank 0         Bank 1

     4MB        (4) 1M x 9        NONE

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

     16MB       (4) 4M x 9        NONE

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

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

     64MB       (4) 16M x 9       NONE

    128MB       (4) 16M x 9    (4) 16M x 9

                         SRAM JUMPER CONFIGURATION

      Jumper             64KB              128KB              256KB

       JP7               open              open              closed

       JP8               open              open              closed

       JP9               open             closed             closed

       JP10              open             closed             closed

       JP11           pins 2 & 3         pins 1 & 2         pins 2 & 3
                        closed            closed             closed

                         SRAM CONFIGURATION

         Size               Cache SRAM              Location

         64KB               (8) 8K x 8            Banks 0 & 1

        128KB               (4) 32K x 8              Bank 0

        256KB               (8) 32K x 8           Banks 0 & 1

  Note:The TAG memory does not need to be changed when upgrading.

          CPU JUMPER CONFIGURATION

      CPU           JP4            JP5

  80486DX2/66      closed         open

  80486DX/50       closed        closed

  80486DX2/50       open          open

  80486DX/40        open         closed

  80486DX/33       closed         open