
CHAINTECH COMPUTER COMPANY, LTD.

4SLD.3

Processor  80486SX/SL80486SX/80486SX2/CX486DX/UMCU5/80486DX/SL80486DX/
           CX486DX2/80486DX2/SL80486DX2/P24D/80486DX4
Processor  25/33/40/50(internal)/50/66(internal)/75(internal)/80(internal)/100(internal)MHz
Speed
Chip Set   SIS
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

  Green PC LED               D1       Turbo switch                 J5

  Speaker                    J1       Green PC connector           J6

  Power LED & keylock        J2       External battery             J7

  Reset switch               J3       Green PC connector          JP17

  Turbo LED                  J4       32-bit VESA local bus    SL1 - SL3
                                      slots

                        USER CONFIGURABLE SETTINGS

                Function                    Jumper           Position

     CMOS memory normal operation           JP22           pins 1 & 2
                                                              closed

      CMOS memory clear                      JP22           pins 2 & 3
                                                              closed

     CPU type select Cyrix                  JP25              Open

      CPU type select AM486DX2               JP25             Closed

      CPU type select AM486DX4               JP25              Open

                            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) 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        NONE        (1) 1M x 36       NONE
                    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

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

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

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

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

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

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

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

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

     32MB       (1) 8M x 36        NONE           NONE           NONE

     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

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

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

     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) 8M x 36       NONE

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

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

                            CACHE CONFIGURATION

       Size              Bank 0            Bank 1              TAG

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

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

           CACHE RESISTOR CONFIGURATION

      Size             RP12             RP13

      128KB         Installed      Not installed

      256KB       Not installed      Installed

                          CPU TYPE CONFIGURATION

     Type         JP9        JP10         JP16        JP20        JP21

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

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

   80486SX2      1 & 2       1 & 2       1 & 2       2 & 3        2 & 3

  SL80486SX2     1 & 2       1 & 2       1 & 2       2 & 3        2 & 3

   ODP486SX      1 & 2       1 & 2       2 & 3       2 & 3        2 & 3

    UMC U5       1 & 2       1 & 2       1 & 2       2 & 3        2 & 3

   CX486DX       1 & 2       1 & 2       1 & 2       1 & 2        1 & 2

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

  SL80486DX      1 & 2       1 & 2       1 & 2       2 & 3        2 & 3

   CX486DX2      1 & 2       1 & 2       1 & 2       1 & 2        1 & 2

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

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

  SL80486DX2     1 & 2       1 & 2       1 & 2       2 & 3        2 & 3

   80486DX4      1 & 2       1 & 2       1 & 2       2 & 3        2 & 3

  Note: Pins designated should be in the closed position.

                              CPU TYPE CONFIGURATION (CONT)

    Type          RP5         RP6          RP7          RP8          RP9         RP10

   80486SX     Installed       Not          Not      Installed        Not         Not
                           installed    installed                 installed    installed

  SL80486SX    Installed       Not          Not      Installed        Not         Not
                           installed    installed                 installed    installed

  80486SX2     Installed       Not          Not      Installed        Not         Not
                           installed    installed                 installed    installed

  SL80486SX2   Installed       Not          Not      Installed        Not         Not
                           installed    installed                 installed    installed

  ODP486SX        Not      Installed        Not      Installed        Not         Not
               installed                installed                 installed    installed

   UMC U5      Installed       Not          Not      Installed        Not         Not
                           installed    installed                 installed    installed

   CX486DX        Not      Installed        Not          Not      Installed       Not
               installed                installed    installed                 installed

   80486DX        Not      Installed        Not      Installed        Not         Not
               installed                installed                 installed    installed

  SL80486DX       Not      Installed        Not      Installed        Not         Not
               installed                installed                 installed    installed

  CX486DX2        Not      Installed        Not          Not      Installed       Not
               installed                installed    installed                 installed

    P24D          Not          Not      Installed        Not          Not      Installed
               installed   installed                 installed    installed

  80486DX2        Not      Installed        Not      Installed        Not         Not
               installed                installed                 installed    installed

  SL80486DX2      Not      Installed        Not      Installed        Not         Not
               installed                installed                 installed    installed

  80486DX4        Not      Installed        Not      Installed        Not         Not
               installed                installed                 installed    installed

     CPU SPEED CONFIGURATION (MX8315)

   Speed      JP11       JP12      JP13

   25MHz      Open      Closed     Open

   33MHz     Closed     Closed    Closed

   40MHz      Open      Closed    Closed

  50iMHz      Open      Closed     Open

   50MHz     Closed      Open      Open

  66iMHz     Closed     Closed    Closed

  75iMHz      Open      Closed     Open

  80iMHz      Open      Closed    Closed

  100iMHz    Closed     Closed    Closed

   CPU SPEED CONFIGURATION (MXIMISC466)

   Speed      JP11       JP12      JP13

   25MHz      Open       Open      Open

   33MHz     Closed      Open     Closed

   40MHz      Open       Open     Closed

  50iMHz      Open       Open      Open

   50MHz     Closed      Open      Open

  66iMHz     Closed      Open     Closed

  75iMHz      Open       Open      Open

  100iMHz    Closed      Open     Closed

  CPU SPEED CONFIGURATION (80486DX4 ONLY)

        Speed                  JP15

        Cyrix           pins 1 & 2 closed

          2x            pins 2 & 3 closed

          3x                   Open

                         CPU VOLTAGE CONFIGURATION

    Voltage          JP1           JP2            JP3            JP6

      3v            Open           Open          Open         pins 1 & 2
                                                               closed

      4v           Closed          Open          Open         pins 2 & 3
                                                               closed

      5v           Closed         Closed        Closed          Open

      VESA WAIT STATE CONFIGURATION

     Wait states             JP4

    0 wait states     pins 1 & 2 closed

    1 wait state      pins 2 & 3 closed

         BUS SPEED CONFIGURATION

      CPU speed              JP5

      <= 33MHz        pins 1 & 2 closed

       > 33MHz        pins 2 & 3 closed

