APRICOT COMPUTERS LIMITED

LS PRO (REV C) MOTHERBOARD

Processor         80486SX/80486DX2/80486DX4
Processor Speed   33/66(internal)/100(internal)MHz
Chip Set          Unidentified
Max. Onboard DRAM 16MB
Cache             None
BIOS              Unidentified
Dimensions        330mm x 200mm
I/O Options       Floppy drive interface, IDE interface, parallel port,
                  PS/2 mouse port, serial port, VGA port, Ethernet
                  connectors (3)
NPU Options       80487SX

[Image]

                                CONNECTIONS

  Purpose                 Location     Purpose                 Location

  Speaker                   CN1        Parallel port              CN9

  Floppy drive              CN2        Headphone port            CN10
  interface

  IDE interface             CN3        Microphone port           CN11

  Ethernet UTP port         CN4        Video memory              CN12
                                       upgrade connector

  Ethernet thin port        CN5        Ethernet thick port       CN13

  VGA port                  CN6        Chassis fan power          PL7

  Serial port               CN7        IDE power                 PL12

  PS/2 mouse port           CN8

                        USER CONFIGURABLE SETTINGS

                Function                    Jumper           Position

  »   CMOS memory normal operation            JP2           pins 2 & 3
                                                              closed

      CMOS memory clear                       JP2           pins 1 & 2
                                                              closed

  »   Ethernet cable type select thick        SW1              Open

      Ethernet cable type select thin         SW1             Closed

                            DRAM CONFIGURATION

       Size              Bank 0             Bank 1            Bank 2

       4MB             (8) 411000            NONE              NONE

       6MB             (8) 411000         (2) 1M x 9           NONE

       8MB             (8) 411000         (2) 1M x 9        (2) 1M x 9

       12MB            (8) 411000         (2) 4M x 9           NONE

       16MB            (8) 411000         (2) 4M x 9        (2) 4M x 9

  Note: Bank 0 is factory installed and is not configurable. When 16MB is
  installed, Bank 0 is automatically disabled.