NEC TECHNOLOGIES, INC.

POWERMATE 468/25E

Processor              80486DX
Processor Speed        25MHz
Chip Set               Unidentified
Max. Onboard DRAM      64MB
Cache                  8/64KB
BIOS                   Unidentified
Dimensions             330mm x 218mm
I/O Options            32-bit external memory card, floppy drive
                       interface, external cache card,

                       parallel port, PS/2 mouse port, serial ports (2)
NPU Options            4167

[Image]

                                CONNECTIONS

  Purpose             Location     Purpose                     Location

  Speaker                P1        Serial/Parallel/IO port        P10
                                   connector

  External battery       P3        Drive power                    P12

  LED panel              P6        32-bit external memory         SL1
                                   card slot

  Floppy drive           P7        External cache slot            SL2
  interface

                        USER CONFIGURABLE SETTINGS

               Function                   Jumper/Switch       Position

  »   Floppy drive transfer rate               2D1            pins 1 & 2
      500/250/300/150/125 KB/sec                               closed

      Floppy drive transfer rate               2D1            pins 2 & 3
      500/250/150 KB/sec                                       closed

  »   Factory configured - do not              2J1             Closed
      alter

  »   Password enabled                         5J2            pins 2 & 3
                                                               closed

      Password disabled                        5J2            pins 1 & 2
                                                               closed

  »   A20 Gate select PAL                      5J3            pins 1 & 2
                                                               closed

      A20 Gate select keyboard                 5J3            pins 2 & 3
      controller                                               closed

  »   Keyboard controller W/R select           5K3            pins 1 & 2
      PAL                                                      closed

      Keyboard controller W/R select           5K3            pins 2 & 3
      XIOWT                                                    closed

  »   Keyboard controller input select         5K4            pins 1 & 2
      12MHz                                                    closed

      Keyboard controller input select         5K4            pins 2 & 3
      8.33MHz                                                  closed

      STBY signal for RTC select               6K3            pins 1 & 2
      PWREN-0                                                  closed

      STBY signal for RTC select               6K3            pins 2 & 3
      PWREN+0                                                  closed

  »   ROM self test disabled                   8M2              Open

      ROM self test enabled                    8M2             Closed

  »   Factory configured - do not              9E1            pins 2 & 3
      alter                                                    closed

  »   Factory configured - do not              9E2            pins 2 & 3
      alter                                                    closed

  »   RDY signal from MILK select DMY          11B2           pins 1 & 2
      RDY                                                      closed

      RDY signal from MILK select BRDY         11B2           pins 2 & 3
                                                               closed

  »   C6 mode select cache                     18F1             Open

      C6 mode select normal                    18F1            Closed

  »   EISA to host write wait select 1         18F2             Open
      wait state

      EISA to host write wait select 0         18F2            Closed
      wait state

  »   Monitor type select color               SW1/1              On

      Monitor type select monochrome          SW1/1              Off

  »   Floppy drive interface address          SW1/2              Off
      select primary (3F0 - 3F7h)

      Floppy drive interface address          SW1/2              On
      select secondary (370 - 377h)

  »   Internal floppy drive interface         SW1/3              On
      enabled

      Internal floppy drive interface         SW1/3              Off
      disabled

  »   COM2 enabled                            SW1/4              On

      COM2 disabled                           SW1/4              Off

  »   COM1 enabled                            SW1/5              On

      COM1 disabled                           SW1/5              Off

  »   Parallel port enabled                   SW1/6              On

      Parallel port disabled                  SW1/6              Off

  »   NPU enabled                             SW1/7              On

      NPU disabled                            SW1/7              Off

  »   IRQ 12 select mouse                     SW1/8              On

      IRQ 12 select other                     SW1/8              Off

  »   Base memory select 640KB                SW1/9              Off

      Base memory select 512KB                SW1/9              On

  »   Factory configured - do not             SW1/10             On
      alter

  TEST MODE CONFIGURATION

  Test Mode        TEST

     Off           Out

      On            In

                 CPU SELF TEST CONFIGURATION

     CPU testing             4D1                  21D1

      Disabled         pins 2 & 3 closed   pins 1 & 2 closed

       Enabled         pins 1 & 2 closed   pins 2 & 3 closed

          EISA TO HOST READ WAIT STATE CONFIGURATION

  Total Wait States      18F3 (bit 0)         19F1 (bit 1)

          0                 Closed               Closed

          1                  Open                Closed

          2                 Closed                Open

          3                  Open                 Open