UNIDENTIFIED

TXM/10-IV

Processor         8088
Processor Speed   4.77/10MHz
Chip Set          Unidentified
Max. Onboard DRAM 1MB
Cache             None
BIOS              Unidentified
Dimensions        330mm x 218mm
I/O Options       None
NPU Options       8087

[Image]

                                CONNECTIONS

  Purpose                   Location   Purpose                   Location

  Speaker                     JP7      Turbo switch               JP10

  Reset switch                JP8      Keylock                    JP11

  Turbo LED                   JP9      Power LED                  JP12

                        USER CONFIGURABLE SETTINGS

              Function                  Jumper/Switch        Position

  »   Parity enabled                         JP6               Open

      Parity disabled                        JP6              Closed

  »   Factory configured - do not           SW1/1               Off
      alter

  »   NPU disabled                          SW1/2               On

      NPU enabled                           SW1/2               Off

  »   Factory configured - do not           SW1/3               Off
      alter

  »   Factory configured - do not           SW1/4               Off
      alter

                                    DRAM CONFIGURATION

  Size    Bank 0     Bank 1    Bank 2A    Bank 3A    Bank 2B   Bank 3B   Bank 2C   Bank 3C

  256KB   (2)44256    NONE       NONE       NONE      NONE      NONE      NONE      NONE

  512KB   (2)44256  (2)44256     NONE       NONE      NONE      NONE      NONE      NONE

  640KB   (2)44256  (2)44256     NONE       NONE     (2)4464   (2)4464    NONE      NONE

  640KB   (2)44256  (2)44256     NONE       NONE     (2)4164   (2)4164   (6)4164   (6)4164

  1MB     (2)44256  (2)44256   (2)44256   (2)44256    NONE      NONE      NONE      NONE

                              DRAM PARITY CONFIGURATION

  Size      P 0       P 1        P 2A       P 3A     P 2B   P 3B    P 2C      P 3C

  256KB   (1)41256    NONE       NONE       NONE     NONE   NONE    NONE      NONE

  512KB   (1)41256  (1)41256     NONE       NONE     NONE   NONE    NONE      NONE

  640KB   (1)41256  (1)41256     NONE       NONE     NONE   NONE   (1)4164   (1)4164

  640KB   (1)41256  (1)41256     NONE       NONE     NONE   NONE   (2)4164   (2)4164

  1MB     (1)41256  (1)41256   (1)41256   (1)41256   NONE   NONE    NONE      NONE

  DRAM SWITCH CONFIGURATION

   Size     SW1/9    SW1/10

  256KB       On       On

  512KB      Off       On

  640KB       On       Off

   1MB       Off       Off

             VIDEO TYPE CONFIGURATION

      Type            SW1/5            SW1/6

  CGA (40 x 25)        Off               On

  CGA (80 x 25)         On              Off

     EGA/VGA            On               On

       MGA             Off              Off

                        FLOPPY DRIVE CONFIGURATION

  Floppy drives installed           SW1/7                   SW1/8

             1                       On                      On

             2                       Off                     On

             3                       On                      Off

             4                       Off                     Off

                            BIOS CONFIGURATION

               Setting                                 CN3

        27128 installed in U80           pins 2 & 17, 3 & 16, 5 & 14, 7 &
                                                    12 closed

     27256 installed in U65 & 2764         pins 1 & 18, 4 & 15, 6 & 13
           installed in U80                          closed