
ADDTECH RESEARCH, INC.

GALAXY II 486 VER. 1.0

Processor  CX486S2/80486SX/CX486DX/AMD486DX/80486DX/80486DX2/80486DX4/ Pentium
           Overdrive
Processor  25/33/40I/40/50(internal)/66(internal)/75(internal)/100(internal)MHz
Speed
Chip Set   Cypress
Max.       128MB
Onboard
DRAM
Cache      128/256/512/1024KB
BIOS       AMI/Award
Dimensions 330mm x 218mm
I/O        32-bit PCI bus slots (4), 32-bit VESA local bus slots (2)
Options
NPU        None
Options

[Image]

                                CONNECTIONS

  Purpose                  Location     Purpose                 Location

  External battery            JP1       Reset switch              JP59

  Turbo switch               JP49       Speaker                   JP60

  Turbo LED                  JP50       32-bit PCI bus slots    P0 - P3

  Power LED & keylock        JP57       32-bit VESA Local      SL1 & SL2
                                        bus slots

                        USER CONFIGURABLE SETTINGS

                Function                     Jumper          Position

     CMOS memory normal operation            JP2           pins 1 & 2
                                                              closed

      CMOS memory clear                       JP2           pins 2 & 3
                                                              closed

     Flash memory disabled                   JP3              Open

      Flash memory voltage select 5v          JP3           pins 1 & 2
                                                              closed

      Flash memory voltage select 12v         JP3           pins 2 & 3
                                                              closed

     SIMM type select single bank            JP4           pins 1 & 2
                                                              closed

      SIMM type select double bank            JP4           pins 2 & 3
                                                              closed

     Factory configured - do not             JP9              N/A
      alter

     Factory configured - do not             JP10             Open
      alter

     CPU type select Intel/AMD               JP27          pins 1 & 2
                                                              closed

      CPU type select Cyrix                   JP27          pins 2 & 3
                                                              closed

     Factory configured - do not             JP32          pins 2 & 3
      alter                                                   closed

     Factory configured - do not             JP34             N/A
      alter

     Factory configured - do not             JP35          pins 2 & 3
      alter                                                   closed

     CPU clock delay select 1 delay          JP36          pins 2 & 3
                                                              closed

      CPU clock delay select 0 delay          JP36          pins 1 & 2
                                                              closed

     Factory configured - do not             JP42             N/A
      alter

     Factory configured - do not             JP51             N/A
      alter

     Monitor type select color               JP55             Open

      Monitor type select monochrome          JP55            Closed

     Factory configured - do not             JP58             N/A
      alter

                            DRAM CONFIGURATION

     Size         Bank 0         Bank 1         Bank 2         Bank 3

     1MB        (1) 256K x        NONE           NONE           NONE
                    36

     2MB        (1) 256K x     (1) 256K x        NONE           NONE
                    36             36

     3MB        (1) 256K x     (1) 256K x     (1) 256K x        NONE
                    36             36             36

     4MB        (1) 256K x     (1) 256K x     (1) 256K x    (1) 256K x 36
                    36             36             36

     2MB        (1) 512K x        NONE           NONE           NONE
                    36

     4MB        (1) 512K x     (1) 512K x        NONE           NONE
                    36             36

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

     8MB       (1) 1M x 36    (1) 1M x 36        NONE           NONE

     8MB       (1) 2M x 36        NONE           NONE           NONE

     12MB      (1) 1M x 36    (1) 1M x 36    (1) 1M x 36        NONE

     16MB      (1) 1M x 36    (1) 1M x 36    (1) 1M x 36     (1) 1M x 36

     16MB      (1) 2M x 36    (1) 2M x 36        NONE           NONE

     16MB      (1) 4M x 36        NONE           NONE           NONE

     17MB       (1) 256K x    (1) 4M x 36        NONE           NONE
                    36

     20MB      (1) 1M x 36    (1) 4M x 36        NONE           NONE

     24MB      (1) 1M x 36    (1) 1M x 36    (1) 4M x 36        NONE

     24MB      (1) 2M x 36    (1) 2M x 36    (1) 2M x 36        NONE

     32MB      (1) 2M x 36    (1) 2M x 36    (1) 2M x 36     (1) 2M x 36

     32MB      (1) 4M x 36    (1) 4M x 36        NONE           NONE

     32MB      (1) 8M x 36        NONE           NONE           NONE

                        DRAM CONFIGURATION (CONT)

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

     40MB        (1) 1M x 36    (1) 1M x 36    (1) 4M x 36   (1) 4M x 36

     48MB        (1) 4M x 36    (1) 4M x 36    (1) 4M x 36       NONE

     52MB        (1) 1M x 36    (1) 4M x 36    (1) 4M x 36   (1) 4M x 36

     64MB        (1) 4M x 36    (1) 4M x 36    (1) 4M x 36   (1) 4M x 36

     64MB        (1) 8M x 36    (1) 8M x 36       NONE           NONE

     64MB         (1) 16MB x       NONE           NONE           NONE
                     36

     96MB        (1) 8M x 36    (1) 8M x 36    (1) 8M x 36       NONE

     128MB       (1) 8M x 36    (1) 8M x 36    (1) 8M x 36   (1) 8M x 36

     128MB        (1) 16MB x     (1) 16MB x       NONE           NONE
                     36             36

                      CACHE CONFIGURATION

      Size          Bank 0          Bank 1           TAG

     128KB        (4) 32K x 8        NONE         (1) 8K x 8

     256KB        (4) 32K x 8     (4) 32K x 8    (1) 32K x 8

     256KB        (4) 64K x 8        NONE        (1) 32K x 8

     512KB        (4) 64K x 8     (4) 64K x 8    (1) 32K x 8

     512KB       (4) 128K x 8        NONE        (1) 32K x 8

      1MB        (4) 128K x 8    (4) 128K x 8    (1) 128K x 8

                        CACHE JUMPER CONFIGURATION

      Size              JP18               JP19               JP20

      128KB             Open            pins 2 & 3      pins 1 & 2 closed
                                          closed

      256KB             Open            pins 1 & 2      pins 1 & 2 closed
                                          closed

      256KB             Open            pins 2 & 3      pins 1 & 2 closed
                                          closed

      512KB             Open            pins 2 & 3      pins 2 & 3 closed
                                          closed

      512KB           pins 1 & 2           Open         pins 2 & 3 closed
                       closed

       1MB            pins 2 & 3           Open         pins 2 & 3 closed
                       closed

                          CPU TYPE CONFIGURATION

       Type            JP26       JP40       JP41       JP43       JP44

      80486SX          Open      1 & 3,      Open       Open      1 & 2
                                 2 & 4

      CX486S2          Open      1 & 3,     Closed      2 & 3     2 & 3
                                 2 & 4

      CX486DX          Open      1 & 3,      Open       Open      1 & 2
                                 2 & 4

    80486DX/DX2        Open      1 & 3,      Open       Open      1 & 2
                                 2 & 4

     80486DX4         Closed     3 & 5,      Open       Open      1 & 2
                                 4 & 6

      Pentium          Open      1 & 3,      Open       1 & 2     2 & 3
     Overdrive                   2 & 4

  Note: Pins designated should be in the closed position.

                          CPU TYPE CONFIGURATION

       Type          JP45       JP46       JP47      JP48        JP54

     80486SX         Open       Open       Open      2 & 3       Open

     CX486S2         3 & 4      4 & 5      Open      2 & 3      Closed

     CX486DX         Open       Open      2 & 3      1 & 2,      Open
                                                     3 & 4

   80486DX/DX2       Open       Open      2 & 3      1 & 2,      Open
                                                     3 & 4

     80486DX4        Open       Open      2 & 3      1 & 2,      Open
                                                     3 & 4

      Pentium        1 & 2,     1 & 2     2 & 3      1 & 2,      Open
    Overdrive        3 & 4                           3 & 4

  Note: Pins designated should be in the closed position.

                          CPU SPEED CONFIGURATION

     Speed          JP15          JP25           JP28           JP29

     25MHz         Closed         Open        pins 1 & 2      pins 2 & 3
                                                closed         closed

     33MHz          Open          Open        pins 2 & 3      pins 1 & 2
                                                closed         closed

     40MHz          Open         Closed       pins 1 & 2      pins 2 & 3
                                                closed         closed

    50iMHz         Closed         Open        pins 1 & 2      pins 2 & 3
                                                closed         closed

    66iMHz          Open          Open        pins 2 & 3      pins 1 & 2
                                                closed         closed

    75iMHz         Closed         Open        pins 1 & 2      pins 2 & 3
                                                closed         closed

    100iMHz         Open          Open        pins 2 & 3      pins 1 & 2
                                                closed         closed

                       VESA BUS SPEED CONFIGURATION

      Speed             JP52               JP53               JP56

      25MHz             Open               Open         pins 2 & 3 closed

      33MHz             Open               Open         pins 2 & 3 closed

      40MHz            Closed             Closed        pins 1 & 2 closed

                          PCI MODE CONFIGURATION

       Mode            JP11          JP30          JP31          JP33

    Synchronous        Open       pins 2 & 3    pins 2 & 3     pins 2 & 3
                                    closed        closed        closed

   Asynchronous       Closed      pins 2 & 3    pins 1 & 2     pins 2 & 3
                                    closed        closed        closed

                           PCI IRQ CONFIGURATION

   PCI     JP21A(IRQ9)      JP21B        JP21C       JP21D        JP21E
  slot                     (IRQ10)     (IRQ11)      (IRQ12)     (IRQ15)

   P0 &       1 & 2         1 & 2       1 & 2        1 & 2       1 & 2
   P1

   P2         2 & 3         2 & 3       2 & 3        2 & 3       2 & 3

  Note: Pins designated should be in the closed position. Slots P0 & P1
  are PCI compliant and slot P2 is non PCI compliant.

                           PCI IRQ CONFIGURATION

               PCI slot                           JP21F (IRQ14)

          P3 (PCI compliant)                         Closed

        P3 (non PCI compliant)                        Open

  Note: This setting is used only for cards that require the use of
  IRQ14.

