NEC TECHNOLOGIES, INC.

POWERMATE 386SXMB

Processor           80386SX
Processor Speed     12/16MHz
Chip Set            ETEQ
Max. Onboard DRAM   32MB
Cache               16/32KB
BIOS                AMI
Dimensions          330mm x 218mm
I/O Options         Proprietary external memory card slot
NPU Options         80287

[Image]

                                CONNECTIONS

  Purpose               Location     Purpose                   Location

  Speaker                 JP8        Proprietary external         S2
                                     memory card

  External battery        JP10       Reset switch                SW1

  Power LED &             JP11
  keylock

                        USER CONFIGURABLE SETTINGS

              Function                  Jumper/Switch         Position

  »   Monitor type select color              JP1               closed

      Monitor type select                    JP1                open
      monochrome

  »   Auxiliary Reference Burst              JP7             pins 1 & 2
      enabled                                                  closed

      Auxiliary Reference Burst              JP7             pins 2 & 3
      disabled                                                 closed

      Battery select internal                JP9             pins 1 & 2
                                                               closed

      Battery select external                JP9             pins 2 & 3
                                                               closed

  »   Proprietary system logic               JP31              closed
      enabled

  »   Proprietary system logic               JP31              closed
      enabled

  »   Main Reference Burst enabled           JP45            pins 1 & 2
                                                               closed

      Main Reference Burst disabled          JP45            pins 3 & 4
                                                               closed

  »   Factory configured - do not            JP48               open
      alter

  »   Factory configured - do not        S1/switch 1            open
      alter

  »   Factory configured - do not        S1/switch 2            open
      alter

  »   Redundancy circuit                 S1/switch 3           closed
      duplication enabled

      Redundancy circuit                 S1/switch 3            open
      duplication disabled

  »   Cache tag bit size select          S1/switch 4            open
      16-bit

      Cache tag bit size select          S1/switch 4           closed
      32-bit

  »   Board power select Direct          S1/switch 5            open
      Current

      Board power select                 S1/switch 5           closed
      Alternating Current (onboard
      converter)

  »   Flash ROM programming              S1/switch 6            open
      disabled

      Flash ROM programming enabled      S1/switch 6           closed

  »   Factory configured - do not             J1                open
      alter

  »   Factory configured - do not             J2                open
      alter

  »   Factory configured - do not             J3                open
      alter

  »   Factory configured - do not             J4                open
      alter

  »   Factory configured - do not             J5                open
      alter

  »   Factory configured - do not             J7                open
      alter

  »   Factory configured - do not            J10                open
      alter

  »   Factory configured - do not            J23                open
      alter

  »   Factory configured - do not            J68                open
      alter

  »   Factory configured - do not            J101               open
      alter

  »   Factory configured - do not            J102               open
      alter

  »   Factory configured - do not            J103               open
      alter

  »   Factory configured - do not            J206               open
      alter

  »   Factory configured - do not            J207               open
      alter

  »   Factory configured - do not            J208               open
      alter

  »   Factory configured - do not            J209               open
      alter

  »   Factory configured - do not            J212               open
      alter

  »   Factory configured - do not            J213               open
      alter

  Note:Locations of jumpers J1 - J213 are unknown.

            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) 1 M 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

           CACHE CONFIGURATION

     Size       Cache SRAM      TAG

     16KB       (4) 8K x 4   (1) 2K x 2

     32KB       (8) 8K x 4   (1) 2K x 2

                        CACHE JUMPER CONFIGURATION

  Jumper       JP4          JP5          JP6         JP20         JP21

   16KB       Closed     pins 1 & 2   pins 2 & 3     Open        Closed
                          closed        closed

   32KB        Open      pins 2 & 3   pins 1 & 2    Closed        Open
                          closed        closed