UNIDENTIFIED

XT-12

Processor         8088/V-20
Processor Speed   12MHz
Chip Set          None
Max. Onboard DRAM 1MB
Cache             None
BIOS              Unidentified
Dimensions        330mm x 218mm
I/O Options       Floppy drive interface
NPU Options       8087

[Image]

                                CONNECTIONS

  Purpose                    Location   Purpose                  Location

  Floppy drive interface       FP1      Speaker                    JP4

  Turbo LED                    JP1      Turbo switch               JP5

  Keylock                      JP2      Power LED                  JP6

  Reset switch                 JP3

                        USER CONFIGURABLE SETTINGS

                Function                     Jumper          Position

  »   Factory configured - do not alter        JP7              N/A

  »   Factory configured - do not alter        JP8              N/A

  »   CPU type select Intel 8088              JP11            Closed

      CPU type select NEC V20                 JP11             Open

                           DRAM CONFIGURATION

                Size                             Location

               256KB                   (2) 44256 chips in U4 and U5

               512KB                 (4) 44256 chips in U3 through U6

               768KB                 (6) 44256 chips in U2 through U7

                1MB                  (8) 44256 chips in U1 through U8

      BIOS CONFIGURATION

   Size      JP9A      JP9B

  8/16KB     Open      Open

   32KB     Closed     Open

   64KB     Closed    Closed

        FLOPPY DRIVE 0 CONFIGURATION

     Size          JP10A          JP10B

  360KB 5.25"      Closed        Closed

   720KB 3.5        Open         Closed

  1.2MB 5.25       Closed         Open

  1.44MB 3.5"       Open          Open

        FLOPPY DRIVE 1 CONFIGURATION

     Size          JP10C          JP10D

  360KB 5.25"      Closed        Closed

   720KB 3.5        Open         Closed

  1.2MB 5.25       Closed         Open

  1.44MB 3.5"       Open          Open