
ACHME COMPUTER, INC.

MS-4144

Processor  CX476S/SL80486SX/80486SX/CX486DX/SLAMD486DX/AM486DX/SL80486DX80486DX/AM486DX2/SL80486DX2/80486DX4
Processor  25/33/40/50(internal)/50/66(internal)/75(internal)/100(internal)MHz
Speed
Chip Set   SIS
Max.       128MB
Onboard
DRAM
Cache      128/256/512/1024KB
BIOS       AMI
Dimensions 254mm x 218mm
I/O        32-bit PCI slots (3), floppy drive interface, green PC connector, IDE interfaces (2), parallel
Options    port, serial ports (2)
NPU        None
Options

[Image]

                                CONNECTIONS

  Purpose                 Location     Purpose                Location

  Serial port 1             CN1        Turbo LED             JFB1 pins 12
                                                                - 13

  Serial port 2             CN2        Turbo switch          JFB1 pins 15
                                                                - 17

  Parallel port             CN3        Reset switch          JFB1 pins 19
                                                                - 20

  Floppy drive              CN4        IDE interface LED     JFB1 pins 21
  interface                                                     & 22

  IDE interface             CN5        Green PC LED          JG1 pins 1 &
  (secondary)                                                     2

  IDE interface             CN6        Green PC              JG1 pins 3 &
  (primary)                            connector                  4

  External battery         JBAT1       Green PC                  JG2
                                       connector
                                       (monitor)

  Power LED & keylock    JFB1 pins 1   Chassis fan power        JFAN1
                            - 5

  Speaker                JFB1 pins 6   32-bit PCI slots       PC1 - PC3
                            - 10

  Note: The location of JFAN1 is unidentified.

                        USER CONFIGURABLE SETTINGS

                Function                     Jumper          Position

     Battery type select internal           JBAT1          pins 2 & 3
                                                              closed

      Battery type select external           JBAT1            Closed

     Factory configured - do not             JM1              N/A
      alter

     Factory configured - do not             JV1              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

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

     4MB         (1) 256K x     (1) 256K x     (1) 512K x        NONE
                    36             36             36

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

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

     5MB         (1) 256K x    (1) 1M x 36       NONE            NONE
                    36

     6MB         (1) 256K x     (1) 256K x    (1) 1M x 36        NONE
                    36             36

     6MB         (1) 512K x    (1) 1M x 36       NONE            NONE
                    36

     8MB         (1) 256K x     (1) 256K x     (1) 512K x    (1) 1M x 36
                    36             36             36

     8MB         (1) 512K x     (1) 512K x    (1) 1M x 36        NONE
                    36             36

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

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

     10MB        (1) 256K x     (1) 256K x    (1) 1M x 36    (1) 1M x 36
                    36             36

     12MB        (1) 512K x     (1) 512K x    (1) 1M x 36    (1) 1M x 36
                    36             36

     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

     18MB        (1) 256K x     (1) 256K x    (1) 4M x 36        NONE
                    36             36

     18MB        (1) 512K x    (1) 4M x 36       NONE            NONE
                    36

     20MB        (1) 512K x     (1) 512K x    (1) 4M x 36        NONE
                    36             36

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

                        DRAM CONFIGURATION (CONT)

     Size          Bank 0         Bank 1         Bank 2         Bank 3

     24MB         (1) 512K x     (1) 512K x    (1) 1M x 36   (1) 4M x 36
                     36             36

     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

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

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

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

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

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

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

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

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

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

     64MB        (1) 4M x 36    (1) 4M x 36    (1) 8M x 36       NONE

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

     65MB         (1) 256K x    (1) 16M x 36      NONE           NONE
                     36

     68MB        (1) 1M x 36    (1) 16M x 36      NONE           NONE

     68MB        (1) 1M x 36    (1) 8M x 36    (1) 8M x 36       NONE

     72MB        (1) 1M x 36    (1) 1M x 36     (1) 16M x        NONE
                                                   36

     72MB        (1) 1M x 36    (1) 1M x 36    (1) 8M x 36   (1) 8M x 36

     80MB        (1) 4M x 36    (1) 16M x 36      NONE           NONE

     80MB        (1) 4M x 36    (1) 8M x 36    (1) 8M x 36       NONE

     96MB        (1) 4M x 36    (1) 4M x 36     (1) 16M x        NONE
                                                   36

     96MB        (1) 4M x 36    (1) 4M x 36    (1) 8M x 36   (1) 8M x 36

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

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

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

                            CACHE CONFIGURATION

      Size             Bank 0           Bank 1                TAG

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

      256KB         (4) 32K x 8       (4) 32K x 8      (1) 16K or (1) 32K
                                                              x 8

      256KB         (4) 64K x 8          NONE          (1) 16K or (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) 64K x 8

                        CACHE JUMPER CONFIGURATION

   Size          JS1            JS2             JS3             JS4

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

   256KB      pins 2 & 3     pins 1 & 2        Open          pins 3 & 4
                closed         closed                          closed

   256KB      pins 2 & 3     pins 1 & 2        Open         pins 1 & 2, 3
                closed         closed                        & 4 closed

   512KB      pins 2 & 3     pins 2 & 3      pins 1 & 2      pins 3 & 4
                closed         closed         closed           closed

   512KB      pins 2 & 3     pins 2 & 3      pins 1 & 2     pins 1 & 2, 3
                closed         closed         closed         & 4 closed

    1MB       pins 2 & 3     pins 2 & 3      pins 2 & 3      pins 3 & 4
                closed         closed         closed           closed

                          CPU TYPE CONFIGURATION

       Type              JC5              JC6           JC7        JC8

      CX486S        pins 3 & 4, 5    pins 4 & 5, 6     Open        Open
                     & 6 closed       & 7 closed

    SL80486SX         pins 4 & 5       pins 6 & 7      Open        Open
                       closed           closed

     80486SX          pins 4 & 5       pins 6 & 7      Open        Open
                       closed           closed

     CX486DX        pins 3 & 4, 5    pins 4 & 5, 6     Open        Open
                     & 6 closed       & 7 closed

   SL AMD486DX      pins 3 & 4, 5    pins 4 & 5, 6     Open        Open
                     & 6 closed       & 7 closed

     AM486DX        pins 3 & 4, 5    pins 4 & 5, 6     Open        Open
                     & 6 closed       & 7 closed

    SL80486DX       pins 3 & 4, 5    pins 4 & 5, 6     Open        Open
                     & 6 closed       & 7 closed

     80486DX        pins 3 & 4, 5    pins 4 & 5, 6     Open        Open
                     & 6 closed       & 7 closed

     AM486DX2       pins 3 & 4, 5    pins 4 & 5, 6     Open        Open
                     & 6 closed       & 7 closed

    SL80486DX2      pins 3 & 4, 5    pins 4 & 5, 6     Open        Open
                     & 6 closed       & 7 closed

     80486DX2       pins 3 & 4, 5    pins 4 & 5, 6     Open        Open
                     & 6 closed       & 7 closed

  80486DX2 (WB)     pins 3 & 4, 5    pins 4 & 5, 6     Open        Open
                     & 6 closed       & 7 closed

     80486DX4       pins 3 & 4, 5    pins 4 & 5, 6     Open        Open
                     & 6 closed       & 7 closed

                          CPU TYPE CONFIGURATION

     Type           JC1            JC2            JC3            JC4

    CX486S           Not        Installed         Not             Not
                 installed                     installed      installed

   SL80486SX     Installed          Not           Not             Not
                                installed      installed      installed

    80486SX          Not            Not           Not             Not
                 installed      installed      installed      installed

    CX486DX          Not        Installed         Not             Not
                 installed                     installed      installed

  SL AMD486DX        Not            Not           Not             Not
                 installed      installed      installed      installed

    AM486DX          Not            Not           Not             Not
                 installed      installed      installed      installed

   SL80486DX     Installed          Not           Not             Not
                                installed      installed      installed

    80486DX          Not            Not           Not             Not
                 installed      installed      installed      installed

   AM486DX2          Not            Not           Not             Not
                 installed      installed      installed      installed

  SL80486DX2     Installed          Not           Not             Not
                                installed      installed      installed

   80486DX2          Not            Not           Not             Not
                 installed      installed      installed      installed

    80486DX2     Installed          Not        Installed          Not
     (WB)                       installed                     installed

   80486DX4      Installed          Not           Not             Not
                                installed      installed      installed

                        CPU SPEED CONFIGURATION

               Speed                                JK1

               25MHz                         pins 7 & 8 closed

               33MHz                  pins 1 & 2, 3 & 4, 7 & 8 closed

               40MHz                     pins 3 & 4, 9 & 10 closed

               50iMHz                        pins 7 & 8 closed

               50MHz                 pins 1 & 2, 5 & 6, 9 & 10 closed

               66iMHz                 pins 1 & 2, 3 & 4, 7 & 8 closed

               75iMHz                        pins 7 & 8 closed

              100iMHz                 pins 1 & 2, 3 & 4, 7 & 8 closed

                         CPU VOLTAGE CONFIGURATION

        Voltage                   jcv3                      jcv4

         3.45v           pins 1 & 2, 3 & 4, 5 & 6           Open
                                 closed

         3.8v            pins 1 & 2, 3 & 4, 5 & 6          Closed
                                 closed

          5v             pins 7 & 8, 9 & 10, 11 &           Open
                                12 closed

                 DACK/DRQ CONFIGURATION

          DACK/DRQ                     JDRQ1

         DACK1/DRQ1          pins 1 & 2, 4 & 5 closed

         DACK3/DRQ3          pins 2 & 3, 5 & 6 closed

