
CHAINTECH COMPUTER COMPANY, LTD.

4ULD.1

Processor  80486SX/SL80486SX/UMCU5S/CX486M7/AM486DXL/80486DX/SL80486DX/
           AM486DXL2/80486DX2/SL80486DX/80486DX4/P24D/Pentium Overdrive
Processor  25/33/40/50(internal)/50/66(internal)/75(internal)/80(internal)/
Speed      100(internal)MHz
Chip Set   UMC
Max.       64MB
Onboard
DRAM
Cache      128/256KB
BIOS       Award
Dimensions 250mm x 220mm
I/O        32-bit VESA local bus slots (3), green PC connector
Options
NPU        None
Options

[Image]

                                CONNECTIONS

  Purpose                  Location    Purpose                  Location

  Power LED & keylock        JP1       Green PC connector         JP20

  Green PC connector         JP2       Reset switch               JP21

  Green PC connector         JP3       Speaker                    JP23

  Green PC connector         JP4       Turbo LED                  JP26

  Green PC connector         JP5       Green PC LED               JP33

  External battery           JP8       32-bit VESA local bus   SL1 - SL3
                                       slots

  Turbo switch               JP16

                        USER CONFIGURABLE SETTINGS

                Function                    Jumper           Position

     Battery type select internal            JP8           pins 2 & 3
                                                              closed

      CMOS memory clear                       JP8           pins 3 & 4
                                                              closed

                        DRAM CONFIGURATION

      Size            Bank 0           Bank 1          Bank 2

       1MB         (4) 256K x 9         NONE            NONE

       1MB             NONE        (1) 256K x 36        NONE

       2MB         (4) 256K x 9    (1) 256K x 36        NONE

       2MB             NONE        (1) 512K x 36        NONE

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

       3MB         (4) 256K x 9    (1) 512K x 36        NONE

       3MB             NONE        (1) 512K x 36    (1) 256K x 36

       3MB             NONE        (1) 256K x 36    (1) 512K x 36

       4MB          (4) 1M x 9          NONE            NONE

       4MB             NONE         (1) 1M x 36         NONE

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

       5MB          (4) 1M x 9     (1) 256K x 36        NONE

       5MB         (4) 256K x 9     (1) 1M x 36         NONE

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

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

       6MB          (4) 1M x 9     (1) 512K x 36        NONE

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

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

       8MB          (4) 1M x 9      (1) 1M x 36         NONE

       8MB             NONE         (1) 2M x 36         NONE

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

       9MB         (4) 256K x 9     (1) 2M x 36         NONE

       9MB             NONE         (1) 2M x 36     (1) 256K x 36

       9MB             NONE        (1) 256K x 36     (1) 2M x 36

      10MB             NONE         (1) 2M x 36     (1) 512K x 36

      10MB             NONE        (1) 512K x 36     (1) 2M x 36

      12MB          (4) 1M x 9      (1) 2M x 36         NONE

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

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

      16MB          (4) 4M x 9          NONE            NONE

      16MB             NONE         (1) 4M x 36         NONE

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

      17MB          (4) 4M x 9     (1) 256K x 36        NONE

      17MB         (4) 256K x 9     (1) 4M x 36         NONE

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

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

      18MB          (4) 4M x 9     (1) 512K x 36        NONE

                    DRAM CONFIGURATION (CONT)

      Size            Bank 0           Bank 1          Bank 2

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

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

      20MB          (4) 4M x 9      (1) 1M x 36         NONE

      20MB          (4) 1M x 9      (1) 4M x 36         NONE

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

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

      24MB          (4) 4M x 9      (1) 2M x 36         NONE

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

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

      32MB          (4) 8M x 9          NONE            NONE

      32MB          (4) 4M x 9      (1) 4M x 36         NONE

      32MB             NONE         (1) 8M x 36         NONE

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

      33MB          (4) 8M x 9     (1) 256K x 36        NONE

      33MB         (4) 256K x 9     (1) 8M x 36         NONE

      33MB             NONE         (1) 8M x 36     (1) 256K x 36

      33MB             NONE        (1) 256K x 36     (1) 8M x 36

      34MB          (4) 8M x 9     (1) 512K x 36        NONE

      34MB             NONE         (1) 8M x 36     (1) 512K x 36

      34MB             NONE        (1) 512K x 36     (1) 8M x 36

      36MB          (4) 8M x 9      (1) 1M x 36         NONE

      36MB          (4) 1M x 9      (1) 8M x 36         NONE

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

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

      40MB          (4) 8M x 9      (1) 2M x 36         NONE

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

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

      48MB          (4) 8M x 9      (1) 4M x 36         NONE

      48MB          (4) 4M x 9      (1) 8M x 36         NONE

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

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

      64MB         (4) 16M x 9          NONE            NONE

      64MB          (4) 8M x 9      (1) 8M x 36         NONE

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

                            CACHE CONFIGURATION

       Size              Bank 0            Bank 1              TAG

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

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

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

                        CACHE JUMPER CONFIGURATION

      Size              JP13               JP14               JP15

      128KB           pins 2 & 3        pins 2 & 3      pins 2 & 3 closed
                       closed             closed

    256KB (A)         pins 1 & 2        pins 1 & 2      pins 1 & 2 closed
                       closed             closed

    256KB (B)         pins 2 & 3        pins 2 & 3      pins 1 & 2 closed
                       closed             closed

                          CPU TYPE CONFIGURATION

       Type            JS1        JS2        JS3       JS4         JS5

      80486SX         2 & 3      2 & 3      1 & 2     1 & 2       1 & 2

     SL80486SX        2 & 3      2 & 3      1 & 2     1 & 2       1 & 2

      UMCU5S          2 & 3      2 & 3      2 & 3     1 & 2       1 & 2

      CX486M7         1 & 2      1 & 2      1 & 2     2 & 3       2 & 3

     AM486DXL         1 & 2      1 & 2      2 & 3     1 & 2       1 & 2

      80486DX         1 & 2      1 & 2      1 & 2     1 & 2       1 & 2

     SL80486DX        1 & 2      1 & 2      1 & 2     1 & 2       1 & 2

     AM486DXL2        1 & 2      1 & 2      2 & 3     1 & 2       1 & 2

     80486DX2         1 & 2      1 & 2      1 & 2     1 & 2       1 & 2

    SL80486DX2        1 & 2      1 & 2      1 & 2     1 & 2       1 & 2

       P24D           1 & 2      1 & 2      1 & 2     1 & 2       1 & 2

     80486DX4         1 & 2      1 & 2      1 & 2     1 & 2       1 & 2

      Pentium         1 & 2      1 & 2      1 & 2     1 & 2       1 & 2
     Overdrive

  Note: Pins designated should be in the closed position.

                      CPU TYPE CONFIGURATION (CONT)

       Type            JS6       JS7        JS8        JS9        JS10

      80486SX         1 & 2     1 & 2      3 & 4      1 & 2       2 & 3

     SL80486SX        1 & 2     1 & 2      3 & 4      1 & 2       1 & 2

      UMCU5S          1 & 2     1 & 2      1 & 2      1 & 2       2 & 3

      CX486M7         3 & 4     3 & 4      1 & 2      3 & 4       1 & 2

     AM486DXL         1 & 2     1 & 2      1 & 2      1 & 2       2 & 3

      80486DX         1 & 2     1 & 2      1 & 2      1 & 2       2 & 3

     SL80486DX        1 & 2     1 & 2      1 & 2      1 & 2       1 & 2

     AM486DXL2        1 & 2     1 & 2      1 & 2      1 & 2       2 & 3

     80486DX2         1 & 2     1 & 2      1 & 2      1 & 2       2 & 3

    SL80486DX2        1 & 2     1 & 2      1 & 2      1 & 2       1 & 2

       P24D           2 & 3     2 & 3      1 & 2      2 & 3       1 & 2

     80486DX4         1 & 2     1 & 2      1 & 2      1 & 2       1 & 2

      Pentium         1 & 2     1 & 2      2 & 3      1 & 2       1 & 2
     Overdrive

  Note: Pins designated should be in the closed position.

                      CPU TYPE CONFIGURATION (CONT)

      Type            JS11          JS12          JS13           JS14

     80486SX       pins 3 & 4     pins 3 & 4    pins 3 & 4    pins 3 & 4
                     closed        closed        closed         closed

    SL80486SX      pins 1 & 2     pins 1 & 2    pins 1 & 2    pins 1 & 2
                     closed        closed        closed         closed

     UMCU5S        pins 3 & 4     pins 2 & 3    pins 3 & 4    pins 2 & 3
                     closed        closed        closed         closed

     CX486M7       pins 2 & 3     pins 1 & 2    pins 2 & 3    pins 3 & 4
                     closed        closed        closed         closed

    AM486DXL       pins 3 & 4     pins 2 & 3    pins 3 & 4    pins 2 & 3
                     closed        closed        closed         closed

     80486DX       pins 3 & 4     pins 3 & 4    pins 3 & 4    pins 3 & 4
                     closed        closed        closed         closed

    SL80486DX      pins 1 & 2     pins 1 & 2    pins 1 & 2    pins 1 & 2
                     closed        closed        closed         closed

    AM486DXL2      pins 3 & 4     pins 2 & 3    pins 3 & 4    pins 2 & 3
                     closed        closed        closed         closed

    80486DX2       pins 3 & 4     pins 3 & 4    pins 3 & 4    pins 3 & 4
                     closed        closed        closed         closed

   SL80486DX2      pins 1 & 2     pins 1 & 2    pins 1 & 2    pins 1 & 2
                     closed        closed        closed         closed

      P24D         pins 1 & 2     pins 1 & 2    pins 1 & 2    pins 1 & 2
                     closed        closed        closed         closed

    80486DX4       pins 1 & 2     pins 1 & 2    pins 1 & 2    pins 1 & 2
                     closed        closed        closed         closed

     Pentium       pins 1 & 2     pins 1 & 2    pins 1 & 2    pins 1 & 2
    Overdrive        closed        closed        closed         closed

  CPU SPEED CONFIGURATION (MX8315/UM9515)

   Speed      JP17       JP18       JP19

   25MHz      Open       Open      Closed

   33MHz     Closed     Closed     Closed

   40MHz     Closed      Open      Closed

  50iMHz      Open       Open      Closed

   50MHz      Open      Closed      Open

  66iMHz     Closed     Closed     Closed

  75iMHz      Open       Open      Closed

  80iMHz     Closed      Open      Closed

  100iMHz    Closed     Closed     Closed

     CPU SPEED CONFIGURATION (IMIS466)

   Speed      JP17       JP18      JP19

   25MHz      Open       Open      Open

   33MHz     Closed     Closed     Open

   40MHz     Closed      Open      Open

  50iMHz      Open       Open      Open

   50MHz      Open      Closed     Open

  66iMHz     Closed     Closed     Open

  75iMHz      Open       Open      Open

  80iMHz     Closed      Open      Open

  100iMHz    Closed     Closed     Open

  CPU SPEED CONFIGURATION (80486DX4 ONLY)

        Speed                  JP25

          2x            pins 2 & 3 closed

          3x                   Open

                         CPU VOLTAGE CONFIGURATION

     Voltage             JP10               JP11               JP12

       3.3v            pins 1 & 2        pins 1 & 2         pins 1 & 2
                        closed             closed             closed

        5v             pins 2 & 3        pins 2 & 3         pins 2 & 3
                        closed             closed             closed

  VESA WAIT STATE CONFIGURATION

   Wait states         JP24

  0 wait states        Open

  1 wait state        Closed

  VL BUS SPEED CONFIGURATION

   CPU speed         JP22

   <= 33MHz          Open

    > 33MHz         Closed

