UNIDENTIFIED

DES-RIS/TB

Processor         8088 (exact location unknown)
Processor Speed   10MHz
Chip Set          Unidentified
Max. Onboard DRAM 640KB
Cache             None
BIOS              Unidentified
Dimensions        254mm x 218mm
I/O Options       None
NPU Options       8087 (exact location unknown)

[Image]

                                CONNECTIONS

  Purpose               Location       Purpose                Location

  Speaker                  JP1         Power LED           JP5 pins 1 & 2

  Keylock                  JP3         Turbo LED           JP5 pins 3 & 4

  Reset switch             JP4         Turbo switch             JP6

                        USER CONFIGURABLE SETTINGS

                Function                     Switch          Position

  »   CMOS memory normal operation           SW1/1             Off

      CMOS memory clear                      SW1/1              On

  »   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 2    Bank 2A   Bank 3    Bank 3A

  256KB        (9)       NONE       NONE      NONE      NONE       NONE
             41256

  512KB        (9)        (9)       NONE      NONE      NONE       NONE
             41256      41256

  576KB        (9)        (9)        (2)       (1)      NONE       NONE
             41256      41256       4464      4164

  640KB        (9)        (9)        (2)       (1)       (2)     (1) 4164
             41256      41256       4464      4164      4464

               VIDEO CONFIGURATION

      Size            SW1/5            SW1/6

   Monochrome          Off              Off

       EGA              On               On

  CGA (40 x 20)        Off               On

  CGA (80 x 25)         On              Off

                FLOPPY DRIVE CONFIGURATION

  Drives installed         SW1/7               SW1/8

         1                  On                  On

         2                  Off                 On

         3                  On                  Off

         4                  Off                 Off