PEACOCK AG

80486SX/DX/DX2 (SYMPHONY)

Processor        80486SX/80486DX/80486DX2
Processor Speed  25/33/50(internal)/50/66(internal)MHz
Chip Set         Symphony
Max. Onboard     32MB
DRAM
Cache            64/128/256/1024KB
BIOS             AMI
Dimensions       330mm x 218mm
I/O Options      Floppy drive interface, IDE interface, parallel port,
                 serial ports (2)
NPU Options      4167 (not present on all boards)

[Image]

                                CONNECTIONS

  Purpose                   Location   Purpose                   Location

  IDE interface               CN1      Turbo LED                   JP5

  Floppy drive interface      CN2      Speaker                     JP7

  Parallel port               CN3      Power LED & keylock         JP9

  Serial port 2               CN4      Reset switch               JP11

  Serial port 1               CN5      IDE interface LED          JP12

                        USER CONFIGURABLE SETTINGS

                Function                     Jumper          Position

  »   I/O bus speed select CPUCLK=CCLK2        JP2           pins 1 & 2
                                                              closed

      I/O bus speed select CPUCLK=PCLK         JP2           pins 2 & 3
                                                              closed

  »   Cache support enabled                    JP6             Open

      Cache support disabled                   JP6            Closed

  »   Monitor type select color               JP10            Closed

      Monitor type select monochrome          JP10             Open

  »   On board I/O enabled                    JP18           pins 2 & 3
                                                              closed

      On board I/O disabled                   JP18           pins 1 & 2
                                                              closed

  »   Parallel port IRQ sleect IRQ7           JP19           pins 2 & 3
                                                              closed

      Parallel port IRQ sleect IRQ5           JP19           pins 1 & 2
                                                              closed

  »   Cache controller timing select 1        JP30           pins 1 & 2
                                                              closed

      Cache controller timing select 2        JP30           pins 2 & 3
                                                              closed

  »   CPU oscillator matches CPU speed        JP36            Closed

      CPU oscillator matches 2x CPU           JP36             Open
      speed

  »   CPU algorithm select 3-2-2-2            JP37            Closed

      CPU algorithm select 2-1-1-1            JP37             Open

  »   Cache wait state select 0 wait          JP38             Open
      states

      Cache wait state select 1 wait          JP38            Closed
      state

              DRAM CONFIGURATION

      Size          Bank 0          Bank 1

      1MB         (4) 256K x 9       NONE

      2MB         (4) 256K x 9   (4) 256K x 9

      4MB         (4) 1M x 9         NONE

      5MB         (4) 256K x 9    (4) 1M x 9

      5MB         (4) 1M x 9     (4) 256K x 9

      8MB         (4) 1M x 9      (4) 1M x 9

      16MB        (4) 4M x 9         NONE

      17MB        (4) 256K x 9    (4) 4M x 9

      17MB        (4) 4M x 9     (4) 256K x 9

      20MB        (4) 1M x 9      (4) 4M x 9

      20MB        (4) 4M x 9      (4) 1M x 9

      32MB        (4) 4M x 9      (4) 4M x 9

                      CACHE CONFIGURATION

      Size          Bank 0          Bank 1           TAG

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

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

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

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

                     CACHE JUMPER CONFIGURATION

   Size     JP20      JP21     JP22      JP23      JP24      JP25

   64KB     2 & 3    2 & 3     2 & 3     Open     2 & 3     2 & 3

  128KB     1 & 2     Open     1 & 2     Closed   1 & 2     1 & 2

  256KB     2 & 3    1 & 2     2 & 3     Open     2 & 3     2 & 3

   1MB      2 & 3    1 & 2     2 & 3     Open     2 & 3     2 & 3

  Note: Pins designated should be in the closed positon.

                    CACHE JUMPER CONFIGURATION (CON’T)

   Size      JP26     JP27     JP31     JP32     JP33     JP34     JP35

   64KB      2 & 3    2 & 3   1 & 2    1 & 2    1 & 2    1 & 2    Closed

   128KB     1 & 2    1 & 2   1 & 2    1 & 2    2 & 3    1 & 2    Closed

   256KB     2 & 3    2 & 3   1 & 2    2 & 3    2 & 3    1 & 2    Closed

    1MB      2 & 3    2 & 3   2 & 3    2 & 3    2 & 3    2 & 3    Closed

  Note: Pins designated should be in the closed positon.

                          CPU TYPE CONFIGURATION

        Type               JP1               JP3               JP4

      80486SX           pins 2 & 3           Open              Open
                          closed

      80486DX           pins 1 & 2          Closed            Closed
                          closed

      80486DX2          pins 1 & 2          Closed            Closed
                          closed