
UNIDENTIFIED

286 TURBO

Processor         80286
Processor Speed   10/12MHz
Chip Set          VLSI
Max. Onboard DRAM 4MB
Cache             None
BIOS              AMI/Award/Phoenix
Dimensions        330mm x 218mm
I/O Options       None
NPU Options       80287

[Image]

                                CONNECTIONS

  Purpose                  Location    Purpose                   Location

  Turbo switch                C1       Power LED & keylock         C4

  Turbo LED                   C2       Speaker                     C5

  Reset switch                C3       External battery            CN1

                        USER CONFIGURABLE SETTINGS

                Function                     Jumper          Location

     BIOS type select 27256                   JP1           pins 1& 2
                                                              closed

      BIOS type select 27512                   JP1           pins 2 & 3
                                                              closed

      Factory configured - do not alter        JP5              N/A

      CPU slow speed select 8MHz               JP6             Open

      CPU slow speed select 6MHz               JP6            Closed

     Monitor type select color                JP7            Closed

      Monitor type select monochrome           JP7             Open

     DRAM speed select 0 wait states          JP8             Open

      DRAM speed select 1 wait state           JP8            Closed

                            DRAM CONFIGURATION

     Size          Bank 0          Bank 1         Bank 2        Bank 3

    512KB        (18) 41256         NONE           NONE          NONE

    512KB           NONE            NONE        (2) 256K x       NONE
                                                    9

    640KB        (18) 41256      (18) 4164         NONE          NONE

    640KB           NONE            NONE        (2) 256K x    (2) 64K x 9
                                                    9

     1MB         (18) 41256      (18) 41256        NONE          NONE

     1MB            NONE            NONE        (2) 256K x     (2) 256K x
                                                    9              9

     2MB        (18) 411000         NONE           NONE          NONE

     2MB            NONE            NONE        (2) 1M x 9       NONE

     4MB        (18) 411000     (18) 411000        NONE          NONE

     4MB            NONE            NONE        (2) 1M x 9    (2) 1M x 9

       DRAM JUMPER CONFIGURATION

   Size      JP2       JP3       JP4

  512KB     Closed   Closed    Closed

  512KB     Closed   Closed    Closed

  640KB     Closed   Closed     Open

  640KB     Closed   Closed     Open

   1MB      Closed    Open     Closed

   1MB      Closed    Open     Closed

   2MB      Closed    Open      Open

   2MB      Closed    Open      Open

   4MB       Open    Closed    Closed

   4MB       Open    Closed    Closed

