
COMPUTREND SYSTEMS, INC.

PCI PENTIUM AL1 (586ALI)

Processor         Pentium
Processor Speed   60/66MHz
Chip Set          ALI
Max. Onboard DRAM 160MB
Cache             256/512/1024KB
BIOS              AMI
Dimensions        330mm x 220mm
I/O Options       32-bit PCI slots (4), green PC connector
NPU Options       None

[Image]

                                CONNECTIONS

  Purpose              Location      Purpose                  Location

  External battery        JB         Reset switch           JFP pins 19 &
                                                                 20

  Chassis fan            JFAN        Green PC connector         JG1
  power                              (monitor)

  Power LED &         JFP pins 1 -   Green PC LED               JG2
  keylock                  5

  Speaker             JFP pins 7 -   Green PC connector         JG3
                          10

  Turbo LED          JFP pins 12 &   32-bit PCI slots        PC1 - PC4
                          13

  Turbo switch       JFP pins 15 -
                          17

                        USER CONFIGURABLE SETTINGS

                Function                    Jumper           Position

     Power good signal detect from           JP1           Pins 2 & 3
      board                                                   closed

      Power good signal detect from           JP1           Pins 1 & 2
      power supply                                            closed

     Flash BIOS voltage select 12v           JP2           Pins 1 & 2
                                                              closed

      Flash BIOS voltage select 5v            JP2           Pins 2 & 3
                                                              closed

     ADS normal operation                    JP5           Pins 1 & 2
                                                              closed

      ADS delay                               JP5           Pins 2 & 3
                                                              closed

                        DRAM CONFIGURATION

      Size            Bank 0           Bank 1          Bank 2

       2MB        (2) 256K x 36         NONE            NONE

       4MB        (2) 256K x 36    (2) 256K x 36        NONE

       4MB        (2) 512K x 36         NONE            NONE

       6MB        (2) 256K x 36    (2) 512K x 36        NONE

       8MB        (2) 512K x 36    (2) 512K x 36        NONE

      10MB         (2) 1M x 36     (2) 256K x 36        NONE

      12MB        (2) 512K x 36     (2) 1M x 36         NONE

      14MB        (2) 256K x 36    (2) 512K x 36     (2) 1M x 36

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

      16MB         (2) 2M x 36          NONE            NONE

      18MB         (2) 2M x 36     (2) 256K x 36        NONE

      18MB         (2) 1M x 36      (2) 1M x 36     (2) 256K x 36

      20MB         (2) 1M x 36      (2) 1M x 36     (2) 512K x 36

      20MB         (2) 2M x 36     (2) 512K x 36        NONE

      22MB         (2) 2M x 36     (2) 512K x 36    (2) 256K x 36

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

      24MB         (2) 1M x 36      (2) 1M x 36      (2) 1M x 36

      26MB         (2) 2M x 36      (2) 1M x 36     (2) 256K x 36

      28MB         (2) 2M x 36      (2) 1M x 36     (2) 512K x 36

      32MB         (2) 4M x 36          NONE            NONE

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

      34MB         (2) 4M x 36     (2) 256K x 36        NONE

      38MB         (2) 4M x 36     (2) 256K x 36    (2) 512K x 36

      40MB         (2) 4M x 36      (2) 1M x 36         NONE

      40MB         (2) 4M x 36     (2) 512K x 36    (2) 512K x 36

      42MB         (2) 4M x 36      (2) 1M x 36     (2) 256K x 36

      44MB         (2) 4M x 36      (2) 1M x 36     (2) 512K x 36

      48MB         (2) 4M x 36      (2) 2M x 36         NONE

      48MB         (2) 4M x 36      (2) 1M x 36      (2) 1M x 36

      50MB         (2) 4M x 36      (2) 2M x 36     (2) 256K x 36

      52MB         (2) 4M x 36      (2) 2M x 36     (2) 512K x 36

      56MB         (2) 4M x 36      (2) 2M x 36      (2) 1M x 36

      64MB         (2) 8M x 36          NONE            NONE

      64MB         (2) 4M x 36      (2) 4M x 36         NONE

                    DRAM CONFIGURATION (CONT)

      Size            Bank 0           Bank 1          Bank 2

      66MB         (2) 8M x 36     (2) 256K x 36        NONE

      66MB         (2) 4M x 36      (2) 4M x 36     (2) 256K x 36

      68MB         (2) 8M x 36     (2) 512K x 36        NONE

      68MB         (2) 4M x 36      (2) 4M x 36     (2) 512K x 36

      70MB         (2) 8M x 36     (2) 256K x 36    (2) 512K x 36

      72MB         (2) 8M x 36     (2) 512K x 36    (2) 512K x 36

      74MB         (2) 8M x 36      (2) 1M x 36     (2) 256K x 36

      76MB         (2) 8M x 36     (2) 512K x 36     (2) 1M x 36

      80MB         (2) 8M x 36      (2) 2M x 36         NONE

      80MB         (2) 8M x 36      (2) 1M x 36      (2) 1M x 36

      82MB         (2) 8M x 36      (2) 2M x 36     (2) 256K x 36

      84MB         (2) 8M x 36      (2) 2M x 36     (2) 512K x 36

      88MB         (2) 8M x 36      (2) 2M x 36      (2) 1M x 36

      96MB         (2) 8M x 36      (2) 4M x 36         NONE

      96MB         (2) 4M x 36      (2) 4M x 36      (2) 4M x 36

      96MB         (2) 8M x 36      (2) 2M x 36      (2) 2M x 36

      98MB         (2) 8M x 36      (2) 4M x 36     (2) 256K x 36

      100MB        (2) 8M x 36      (2) 4M x 36     (2) 512K x 36

      104MB        (2) 8M x 36      (2) 4M x 36      (2) 1M x 36

      112MB        (2) 8M x 36      (2) 4M x 36      (2) 2M x 36

      128MB        (2) 8M x 36      (2) 4M x 36      (2) 4M x 36

      128MB        (2) 8M x 36      (2) 8M x 36         NONE

      130MB        (2) 8M x 36      (2) 8M x 36     (2) 256K x 36

      130MB        (2) 16M x 36    (2) 256K x 36        NONE

      132MB        (2) 8M x 36      (2) 8M x 36     (2) 512K x 36

      136MB        (2) 8M x 36      (2) 8M x 36      (2) 1M x 36

      160MB        (2) 8M x 36      (2) 8M x 36      (2) 8M x 36

                       CACHE CONFIGURATION

         Size                Bank 0                  TAG

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

        512KB              (8) 64K x 8         (1) 16K/32K x 8

         1MB              (8) 128K x 8           (1) 32K x 8

                  CACHE JUMPER CONFIGURATION

        Size                 JS1                  JS2

        256KB          Pins 1 & 2 closed   Pins 1 & 2 closed

        512KB          Pins 2 & 3 closed   Pins 1 & 2 closed

         1MB           Pins 2 & 3 closed   Pins 2 & 3 closed

                  CACHE JUMPER CONFIGURATION

        Size                 JS1                  JS2

        256KB          Pins 1 & 2 closed   Pins 1 & 2 closed

        512KB          Pins 2 & 3 closed   Pins 1 & 2 closed

         1MB           Pins 2 & 3 closed   Pins 2 & 3 closed

  CPU SPEED CONFIGURATION

    Speed          JK1

    60MHz          Open

    66MHz         Closed

