
CHAINTECH COMPUTER COMPANY, LTD.

4SPM.3/4SPM5.1

Processor  80486SX/ODP486SX/CX486DX/AM486DX/80486DX/UMCU5S/CX486DX2/
           CX486DX2V/AM486DX2/(SL)AM486DX2/80486DX2/P24D/AM486DX4/ 80486DX4/Pentium
           Overdrive
Processor  25/33/40/50(internal)/50/66(internal)/75(internal)/80(internal)/83(internal)/
Speed      100(internal)MHz
Chip Set   UMC
Max.       128MB
Onboard
DRAM
Cache      128/256/512/1024KB
BIOS       Award
Dimensions 250mm x 220mm
I/O        32-bit PCI slots (3), floppy drive interface, game port, green PC connector,
Options    IDE interfaces (2), parallel port, serial ports (2)
NPU        None
Options

[Image]

                                CONNECTIONS

  Purpose                  Location    Purpose                  Location

  Floppy drive interface     CN1       IDE interface LED 2        JP15

  Serial port 1              CN2       Green PC LED               JP27

  Serial port 2              CN3       Green PC connector         JP29

  Parallel port              CN4       Turbo switch               JP35

  Game port                  CN5       Turbo LED                  JP36

  IDE interface 2            CN6       Speaker                    JP37

  IDE interface 1            CN7       Reset switch               JP44

  External battery           JP12      Power LED & keylock        JP45

  IDE interface LED 1        JP14      32-bit PCI slots         PC1 - PC3

                        USER CONFIGURABLE SETTINGS

                Function                    Jumper           Position

     CMOS memory normal operation           JP13           pins 1 & 2
                                                              closed

      CMOS memory clear                      JP13           pins 2 & 3
                                                              closed

     PCI bus clock select CPU clock         JP21           pins 1 & 2
      speed                                                   closed

      PCI bus clock select 1/2 CPU           JP21           pins 2 & 3
      clock speed                                             closed

                            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

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

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

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

     4MB        (1) 256K x     (1) 256K x     (1) 256K x    (1) 256K x 36
                    36             36             36

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

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

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

     5MB        (1) 512K x     (1) 256K x     (1) 256K x    (1) 256K x 36
                    36             36             36

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

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

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

     7MB       (1) 1M x 36     (1) 256K x     (1) 256K x    (1) 256K x 36
                                   36             36

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

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

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

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

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

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

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

     11MB      (1) 2M x 36     (1) 256K x     (1) 256K x    (1) 256K x 36
                                   36             36

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

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

                        DRAM CONFIGURATION (CONT)

     Size         Bank 0         Bank 1         Bank 2         Bank 3

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

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

     16MB      (1) 2M 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) 4M x 36     (1) 256K x        NONE           NONE
                                   36

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

     18MB       (1) 512K x    (1) 2M x 36    (1) 2M x 36        NONE
                    36

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

     19MB      (1) 4M x 36     (1) 256K x     (1) 256K x    (1) 256K x 36
                                   36             36

     20MB      (1) 1M x 36    (1) 2M x 36    (1) 2M x 36        NONE

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

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

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

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

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

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

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

     26MB       (1) 512K x    (1) 2M x 36    (1) 2M x 36     (1) 2M x 36
                    36

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

     28MB      (1) 4M x 36    (1) 1M x 36    (1) 1M x 36     (1) 1M x 36

     32MB      (1) 4M 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

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

     34MB      (1) 8M x 36     (1) 256K x     (1) 256K x        NONE
                                   36             36

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

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

     35MB      (1) 8M x 36     (1) 256K x     (1) 256K x    (1) 256K 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

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

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

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

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

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

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

     44MB      (1) 8M x 36    (1) 1M x 36    (1) 1M x 36     (1) 1M x 36

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

     48MB      (1) 8M x 36    (1) 2M x 36    (1) 2M x 36        NONE

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

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

                        DRAM CONFIGURATION (CONT)

     Size          Bank 0        Bank 1         Bank 2         Bank 3

     50MB        (1) 512K x    (1) 4M x 36    (1) 4M x 36    (1) 4M x 36
                     36

     52MB       (1) 1M x 36    (1) 4M x 36    (1) 4M x 36    (1) 4M x 36

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

     56MB       (1) 8M x 36    (1) 2M x 36    (1) 2M x 36    (1) 2M x 36

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

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

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

     66MB       (1) 16M x 36    (1) 256K x     (1) 256K x       NONE
                                   36             36

     66MB        (1) 512K x    (1) 8M x 36    (1) 8M x 36       NONE
                     36

     66MB        (1) 512K x    (1) 16M x 36      NONE           NONE
                     36

     67MB       (1) 16M x 36    (1) 256K x     (1) 256K x   (1) 256K x 36
                                   36             36

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

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

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

     72MB       (1) 2M x 36    (1) 8M x 36    (1) 8M x 36       NONE

     72MB       (1) 2M x 36    (1) 16M x 36      NONE           NONE

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

     72MB       (1) 16M x 36   (1) 2M x 36       NONE           NONE

     76MB       (1) 16M x 36   (1) 1M x 36    (1) 1M x 36    (1) 1M x 36

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

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

     80MB       (1) 8M x 36    (1) 4M x 36    (1) 4M x 36    (1) 4M x 36

     80MB       (1) 16M x 36   (1) 2M x 36    (1) 2M x 36       NONE

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

     88MB       (1) 16M x 36   (1) 2M x 36    (1) 2M x 36    (1) 2M x 36

     96MB       (1) 8M x 36    (1) 16M x 36      NONE           NONE

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

     96MB       (1) 16M x 36   (1) 8M x 36       NONE           NONE

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

     98MB        (1) 512K x    (1) 8M x 36    (1) 8M x 36    (1) 8M x 36
                     36

    100MB       (1) 1M x 36    (1) 8M x 36    (1) 8M x 36    (1) 8M x 36

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

    112MB       (1) 4M x 36    (1) 8M x 36    (1) 8M x 36    (1) 8M x 36

    112MB       (1) 16M x 36   (1) 4M x 36    (1) 4M x 36    (1) 4M x 36

    128MB       (1) 16M x 36   (1) 8M x 36    (1) 8M x 36       NONE

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

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

  Note: Board also accepts x 32 SIMMs.

                      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) 32K x 8

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

   512KB (A)      (4) 64K x 8     (4) 64K x 8    (1) 32K x 8

   512KB (B)     (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       JP17       JP18      JP19      JP20       JP25       JP26

   128KB      1 & 2     2 & 3      2 & 3     1 & 2     1 & 2      1 & 2

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

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

   512KB      2 & 3     2 & 3      2 & 3     2 & 3     2 & 3      2 & 3
    (A)

   512KB      1 & 2     1 & 2      2 & 3     1 & 2     2 & 3      2 & 3
    (B)

    1MB       2 & 3     2 & 3      2 & 3     2 & 3     2 & 3      2 & 3

  Note: Pins designated should be in the closed position.

                          CPU TYPE CONFIGURATION

       Type             JP31         JP32          JP38          JP39

      80486SX        pins 1 & 2     Closed         N/A         pins 1 & 2
                       closed                                   closed

     ODP486SX        pins 1 & 2     Closed         N/A         pins 1 & 2
                       closed                                   closed

      CX486DX        pins 1 & 2     Closed         N/A         pins 1 & 2
                       closed                                   closed

      AM486DX        pins 1 & 2     Closed         N/A         pins 1 & 2
                       closed                                   closed

      80486DX        pins 1 & 2     Closed         N/A         pins 1 & 2
                       closed                                   closed

      UMCU5S         pins 2 & 3     Closed         N/A         pins 2 & 3
                       closed                                   closed

     CX486DX2        pins 1 & 2     Closed         N/A         pins 1 & 2
                       closed                                   closed

     CX486DX2V       pins 1 & 2      Open       pins 2 & 3     pins 1 & 2
                       closed                     closed        closed

     AM486DX2        pins 1 & 2     Closed         N/A         pins 1 & 2
                       closed                                   closed

   (SL)AM486DX2      pins 1 & 2      Open       pins 1 & 2     pins 1 & 2
                       closed                     closed        closed

     80486DX2        pins 1 & 2     Closed         N/A         pins 1 & 2
                       closed                                   closed

       P24D          pins 1 & 2     Closed         N/A         pins 1 & 2
                       closed                                   closed

     AM486DX4        pins 1 & 2      Open       pins 1 & 2     pins 1 & 2
                       closed                     closed        closed

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

       P24T          pins 1 & 2     Closed         N/A         pins 1 & 2
                       closed                                   closed

                      CPU TYPE CONFIGURATION (CONT)

       Type             JP40         JP41          JP42          JP43

      80486SX        pins 1 & 2       N/A       pins 1 & 2     pins 1 & 2
                       closed                     closed        closed

     ODP486SX        pins 1 & 2       N/A       pins 1 & 2     pins 2 & 3
                       closed                     closed        closed

      CX486DX        pins 1 & 2       N/A       pins 1 & 2     pins 1 & 2
                       closed                     closed        closed

      AM486DX        pins 1 & 2       N/A       pins 1 & 2     pins 1 & 2
                       closed                     closed        closed

      80486DX        pins 1 & 2       N/A       pins 1 & 2     pins 1 & 2
                       closed                     closed        closed

      UMCU5S         pins 2 & 3       N/A       pins 1 & 2     pins 1 & 2
                       closed                     closed        closed

     CX486DX2        pins 1 & 2       N/A       pins 1 & 2     pins 1 & 2
                       closed                     closed        closed

     CX486DX2V       pins 1 & 2       N/A       pins 1 & 2     pins 1 & 2
                       closed                     closed        closed

     AM486DX2        pins 1 & 2       N/A       pins 1 & 2     pins 1 & 2
                       closed                     closed        closed

   (SL)AM486DX2      pins 1 & 2     Closed      pins 2 & 3     pins 1 & 2
                       closed                     closed        closed

     80486DX2        pins 1 & 2       N/A       pins 1 & 2     pins 1 & 2
                       closed                     closed        closed

       P24D          pins 1 & 2       N/A       pins 1 & 2     pins 1 & 2
                       closed                     closed        closed

     AM486DX4        pins 1 & 2      Open       pins 1 & 2     pins 1 & 2
                       closed                     closed        closed

     80486DX4        pins 1 & 2       N/A       pins 1 & 2     pins 1 & 2
                       closed                     closed        closed

       P24T          pins 1 & 2       N/A       pins 1 & 2     pins 2 & 3
                       closed                     closed        closed

                      CPU TYPE CONFIGURATION (CONT)

      Type         J2        J3        J4        J5       J6        J7

    80486SX      Closed     Open      Open      Open    Closed     Open

    ODP486SX      Open     Closed     Open      Open    Closed     Open

    CX486DX       Open     Closed     Open     Closed    Open      Open

    AM486DX       Open     Closed     Open      Open    Closed     Open

    80486DX       Open     Closed     Open      Open    Closed     Open

     UMCU5S      Closed     Open      Open      Open    Closed     Open

    CX486DX2      Open     Closed     Open     Closed    Open      Open

   CX486DX2V      Open     Closed     Open     Closed    Open      Open

    AM486DX2      Open     Closed     Open      Open    Closed     Open

  (SL)AM486DX2    Open     Closed     Open      Open    Closed     Open

    80486DX2      Open     Closed     Open      Open    Closed     Open

      P24D        Open      Open     Closed     Open     Open     Closed

    AM486DX4      Open     Closed     Open      Open    Closed     Open

    80486DX4      Open     Closed     Open      Open    Closed     Open

      P24T        Open      Open     Closed     Open     Open     Closed

                   CPU SPEED CONFIGURATION

        Speed                JP22                 JP23

        25MHz          pins 2 & 3 closed   pins 2 & 3 closed

        33MHz          pins 1 & 2 closed   pins 1 & 2 closed

        40MHz          pins 1 & 2 closed   pins 2 & 3 closed

       50iMHz          pins 2 & 3 closed   pins 2 & 3 closed

        50MHz          pins 2 & 3 closed   pins 1 & 2 closed

       66iMHz          pins 1 & 2 closed   pins 1 & 2 closed

       75iMHz          pins 2 & 3 closed   pins 2 & 3 closed

       80iMHz          pins 1 & 2 closed   pins 2 & 3 closed

       83iMHz          pins 1 & 2 closed   pins 1 & 2 closed

       100iMHz         pins 1 & 2 closed   pins 1 & 2 closed

                      DMA CONFIGURATION

         DMA                 JP1                  JP2

        DMA 1          pins 1 & 2 closed   pins 1 & 2 closed

        DMA 3          pins 2 & 3 closed   pins 2 & 3 closed

