
COMPUTREND SYSTEMS, INC.

PREMIO PCI 486AL3

Processor  80486SX/SL80486SX/AM486DX/80486DX/SL80486DX/TICXDX2/CX486DX2/
           AM486DX2/(SL)AM486DX2/80486DX2/SL80486DX2/AM486DX4/80486DX4/ P24D/P24T
Processor  25/33/40/50(internal)/66(internal)/75(internal)/80(internal)/100(internal)/
Speed      120(internal)/133(internal)/160(internal)MHz
Chip Set   ALI
Max.       64MB
Onboard
DRAM
Cache      128/256KB
BIOS       AMI
Dimensions 220mm x 220mm
I/O        32-bit PCI slots (3), floppy drive interface, green PC connector, IDE
Options    interfaces (2), parallel port, serial ports (2)
NPU        None
Options

[Image]

                                CONNECTIONS

  Purpose               Location      Purpose                 Location

  Serial port 1            CN1        Power LED &          JFP pins 1 - 5
                                      keylock

  Serial port 2            CN2        Speaker               JFP pins 7 -
                                                                 10

  Floppy drive             CN3        Turbo LED             JFP pins 12 &
  interface                                                      13

  Parallel port            CN4        Turbo switch          JFP pins 15 -
                                                                 17

  IDE interface 2          CN5        Reset switch          JFP pins 19 &
                                                                 20

  IDE interface 1          CN6        IDE interface LED         JFPA

  Chassis fan power        FAN        Green PC connector        JG1

  External battery        JBAT        32-bit PCI slots       PC1 - PC3

                        USER CONFIGURABLE SETTINGS

                Function                     Jumper          Position

     Parallel port IRQ select 378H or        JIRQ          Pins 1 & 2
      3BCH                                                    closed

      Parallel port IRQ select 278H           JIRQ          Pins 2 & 3
                                                              closed

     Factory configured - do not             JS3              N/A
      alter

  Note: JIRQ may not be present on all boards. The location is
  unidentified.

                    DRAM CONFIGURATION

     Size          Bank 0         Bank 1        Bank 2

      4MB       (1) 1M x 36        NONE          NONE

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

      8MB       (1) 2M x 36        NONE          NONE

     12MB       (1) 1M x 36    (1) 1M x 36    (1) 1M x 36

     12MB       (1) 1M x 36    (1) 2M x 36       NONE

     16MB       (1) 4M x 36        NONE          NONE

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

     16MB       (1) 1M x 36    (1) 2M x 36    (1) 1M x 36

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

     24MB       (1) 1M x 36    (1) 1M x 36    (1) 4M x 36

     24MB       (1) 4M x 36    (1) 2M x 36       NONE

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

     32MB       (1) 8M x 36        NONE          NONE

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

     40MB       (1) 2M x 36    (1) 8M x 36       NONE

     40MB       (1) 4M x 36    (1) 2M x 36    (1) 4M x 36

     40MB       (1) 1M x 36    (1) 8M x 36    (1) 1M x 36

     48MB       (1) 4M x 36    (1) 4M x 36    (1) 4M x 36

     48MB       (1) 4M x 36    (1) 8M x 36       NONE

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

     64MB       (1) 4M x 36    (1) 8M x 36    (1) 4M x 36

                            CACHE CONFIGURATION

       Size             Bank 0           Bank 1               TAG

       128KB         (4) 32K x 8          NONE        (1) 8K/16K/32K x 8

     256KB (A)       (4) 32K x 8      (4) 32K x 8     (1) 8K/16K/32K x 8

     256KB (B)       (4) 64K x 8          NONE        (1) 8K/16K/32K x 8

                        CACHE JUMPER CONFIGURATION

      Size               JS1               JS2                 JS4

      128KB           Pins 1 & 2        Pins 1 & 2      Pins 2 & 3 closed
                       closed             closed

    256KB (A)         Pins 2 & 3        Pins 1 & 2      Pins 1 & 2 closed
                       closed             closed

    256KB (B)         Pins 1 & 2        Pins 1 & 2      Pins 1 & 2 closed
                       closed             closed

                          CPU TYPE CONFIGURATION

        Type            JC1         JC2        JC3        JC4       JC5

      80486SX          Open        Open        Open      1 & 2     2 & 3

     SL80486SX         Open        Open        Open      1 & 2     2 & 3

      AM486DX          Open        Open        Open      2 & 3     1 & 2

      80486DX          Open        Open        Open      2 & 3     1 & 2

     SL80486DX         Open        Open        Open      2 & 3     1 & 2

      ticxdx2          Open       Closed       Open      2 & 3     1 & 2

      CX486DX2         Open       Closed       Open      2 & 3     1 & 2

      AM486DX2         Open        Open        Open      2 & 3     1 & 2

    (SL)AM486DX2       Open        Open        Open      2 & 3     1 & 2

  (SL)AM486DX2 (WB)   1 & 2, 3     Open        Open      2 & 3     1 & 2
                        & 4

      80486DX2         Open        Open        Open      2 & 3     1 & 2

     SL80486DX2        Open        Open        Open      2 & 3     1 & 2

      AM486DX4         Open        Open        Open      2 & 3     1 & 2

   AM486DX4 (WB)      1 & 2, 3     Open        Open      2 & 3     1 & 2
                        & 4

      80486DX4         Open        Open        Open      2 & 3     1 & 2

        P24D          1 & 2, 3     Open        Open      2 & 3     1 & 2
                        & 4

        P24T          1 & 2, 3     Open        Open      2 & 3     1 & 2
                        & 4

  Note: Pins designated should be in the closed position.

                      CPU TYPE CONFIGURATION (CONT)

        Type               RN1               RN2                RN3

      80486SX           pins 1 - 10     Not installed      Not installed
                        installed

     SL80486SX          pins 3 - 12     Not installed      Not installed
                        installed

      AM486DX           pins 1 - 10     Not installed      Not installed
                        installed

      80486DX           pins 1 - 10     Not installed      Not installed
                        installed

     SL80486DX          pins 3 - 12     Not installed      Not installed
                        installed

      ticxdx2         Not installed       Installed        Not installed

      CX486DX2        Not installed       Installed        Not installed

      AM486DX2          pins 1 - 10     Not installed      Not installed
                        installed

    (SL)AM486DX2        pins 1 - 10     Not installed      Not installed
                        installed

  (SL)AM486DX2 (WB)     pins 5 - 14     Not installed      Not installed
                        installed

      80486DX2          pins 1 - 10     Not installed      Not installed
                        installed

     SL80486DX2         pins 3 - 12     Not installed      Not installed
                        installed

      AM486DX4          pins 1 - 10     Not installed      Not installed
                        installed

   AM486DX4 (WB)        pins 5 - 14     Not installed      Not installed
                        installed

      80486DX4          pins 3 - 12     Not installed      Not installed
                        installed

        P24D            pins 5 - 14     Not installed      Not installed
                        installed

        P24T            pins 5 - 14     Not installed      Not installed
                        installed

                          CPU SPEED CONFIGURATION

          Speed                    JK1                      JK2

          25MHz                    Open              Pins 1 & 2 closed

          33MHz              Pins 1 & 2, 3 & 4       Pins 1 & 2 closed
                                  closed

          40MHz             Pins 1 & 2 closed         Pins 2 & 3, 4 & 5
                                                           closed

         50iMHz                    Open              Pins 1 & 2 closed

         66iMHz              Pins 1 & 2, 3 & 4       Pins 1 & 2 closed
                                  closed

         75iMHz                    Open              Pins 1 & 2 closed

         80iMHz             Pins 1 & 2 closed         Pins 2 & 3, 4 & 5
                                                           closed

         100iMHz             Pins 1 & 2, 3 & 4       Pins 1 & 2 closed
                                  closed

         120iMHz            Pins 1 & 2 closed         Pins 2 & 3, 4 & 5
                                                           closed

         133iMHz             Pins 1 & 2, 3 & 4       Pins 1 & 2 closed
                                  closed

         160iMHz            Pins 1 & 2 closed         Pins 2 & 3, 4 & 5
                                                           closed

                         CPU VOLTAGE CONFIGURATION

         Voltage                    JP1                     JV1

             3v                   Open                     Open

              4v                  Closed                    Open

              5v                   Open            Pins 1 & 2, 3 & 4, 5 &
                                                          6 closed

                      DMA CONFIGURATION

         DMA                 JP3                  JP4

        DMA 1          Pins 2 & 3 closed   Pins 2 & 3 closed

        DMA 3          Pins 1 & 2 closed   Pins 1 & 2 closed

