
HAUPPAUGE COMPUTER WORKS, INC.

4860 MOTHERBOARD

Processor         80486DX/i860
Processor Speed   25/33MHz
Chip Set          Intel
Max. onboard DRAM 32MB
Cache             None
BIOS              Unidentified
Dimensions        330mm x 218mm
I/O Options       Parallel port, serial ports (2)
NPU Options       None

[Image]

                                CONNECTIONS

  Purpose                   Location    Purpose                  Location

  Reset switch                 J9       Speaker                    J19

  Turbo LED/switch            J11       Keylock & power LED        J20

  Serial port 1               J13       External battery           J21

  Serial port 2               J14       PS/2 mouse interface       J23

  Parallel port               J15

                        USER CONFIGURABLE SETTINGS

                 Function                     Jumper         Position

     I860 interrupt select 61.7911msec        JP1           Pins 2 & 3
                                                              closed

      I860 timer interrupt select              JP1           Pins 1 & 2
      30.8955msec                                             closed

     Turbocache not installed                 JP2            Closed

      Turbocache installed                     JP2             Open

     IRQ12 disabled                           JP3           Pins 1 & 2
                                                              closed

      IRQ12 enabled                            JP3           Pins 2 & 3
                                                              closed

     Serial port 1 address COM1 select        JP4           Pins 1 & 2
                                                              closed

      Serial port 1 address COM3 select        JP4           Pins 2 & 3
                                                              closed

     IRQ4 enabled                             JP5            Closed

      IRQ4 disabled                            JP5             Open

     Serial port 2 address COM2 select        JP6           Pins 1 & 2
                                                              closed

      Serial port 2 address COM4 select        JP6           Pins 2 & 3
                                                              closed

     IRQ3 enabled                             JP7            Closed

      IRQ3 disabled                            JP7             Open

     Parallel port address LPT2 select        JP8           Pins 2 & 3
                                                              closed

      Parallel port address LPT1 select        JP8           Pins 1 & 2
                                                              closed

     IRQ7 enabled                             JP9            Closed

      IRQ7 disabled                            JP9             Open

     Factory configured-do not alter          JP12           Closed

     Factory configured-do not alter          JP13          Pins 2 & 3
                                                              closed

     25MHz CPU speed select                   JP14           Closed

      33MHZ CPU speed select                   JP14            Open

     Write-protected caching by 486 &         JP15            Open
      Turbocache

      Write protected caching by               JP15           Closed
      Turbocache only

     Factory configured-do not alter          JP17            Open

     64-bit slot write select CPUWR#          JP18          Pins 2 & 3
                                                              closed

      64-bit slot write select BCPUWR#         JP18          Pins 1 & 2
                                                              closed

     Monitor type select monochrome           SW1             Open

      Monitor type select color                SW1           Pins 2 & 3
                                                              closed

      Burn-in test enable                      SW1           Pins 1 & 2
                                                              closed

                     MOUSE/KEYBOARD BIOS CONFIGURATION

     Setting        JP11A      JP11B       JP11C      JP11D       JP11E

   XT keyboard      Open        Open      Closed     Closed      Closed

    Mouse, AT      Closed      Closed      Open       Open        Open
    keyboard

     No mouse       Open        Open      Closed     Closed      Closed
    installed

                            DRAM CONFIGURATION

     Size         Bank 0         Bank 1         Bank 2         Bank 3

     4MB         (2) 512K x    (2) 512K x     (2) 512K x    (2) 512K x 36
                    36             36             36

     4MB        (2) 1MB x 36  (2) 1MB x 36       NONE           NONE

     4MB        (2) 2MB x 36      NONE           NONE           NONE

     6MB        (2) 1MB x 36  (2) 1MB x 36   (2) 1MB x 36       NONE

     8MB        (2) 1MB x 36  (2) 1MB x 36   (2) 1MB x 36   (2) 1MB x 36

     8MB        (2) 2MB x 36  (2) 2MB x 36       NONE           NONE

     8MB        (2) 4MB x 36      NONE           NONE           NONE

     12MB       (2) 2MB x 36  (2) 2MB x 36   (2) 2MB x 36       NONE

     16MB       (2) 4MB x 36  (2) 4MB x 36       NONE           NONE

     16MB       (2) 2MB x 36  (2) 2MB x 36   (2) 2MB x 36   (2) 2MB x 36

     16MB       (2) 8M x 36       NONE           NONE           NONE

     32MB       (2) 8M x 36   (2) 8M x 36        NONE           NONE

