
CHAINTECH COMPUTER COMPANY, LTD.

4SPM5.2

Processor  80486SX/ODP486/UMCU5S/CX486DX/AM486DX/80486DX/
           CX486DX2/CX486DX2V/AM486DX2/80846DX2/CX486DX4/AM486DX4/80486DX4/P24D/P24T/CX5X86/AMK5
Processor  25/33/40/50(internal)/50/63(internal)/66(internal)/75(internal)/
Speed      80(internal)/83(internal)/100(internal)/120(internal)/133(internal)MHz
Chip Set   Unidentified
Video Chip None
Set
Maximum    128MB (EDO supported)
Onboard
Memory
Maximum    None
Video
Memory
Cache      128/256/512/1024KB
BIOS       Award
Dimensions 250mm x 220mm
I/O        32-bit PCI slots (3), floppy drive interface, green PC connector, IDE interfaces (2),
Options    parallel port, serial ports (2)
NPU        None
Options

[Image]

                                CONNECTIONS

  Purpose                  Location    Purpose                  Location

  Floppy drive interface     CN1       Green PC LED               JP27

  Serial port 1              CN2       Green PC connector         JP29

  Serial port 2              CN3       Turbo switch               JP35

  Parallel port              CN4       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

  IDE interface LED 2        JP15

                        USER CONFIGURABLE SETTINGS

                Function                     Label           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

     Factory configured - do not alter       JP31          Pins 1 & 2
                                                              closed

     Factory configured - do not alter       JP39          Pins 1 & 2
                                                              closed

     Factory configured - do not alter       JP40          Pins 1 & 2
                                                              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

                        DRAM CONFIGURATION (CONT)

     Size         Bank 0        Bank 1         Bank 2          Bank 3

     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

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

     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

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

     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) 2M x 36       None            None

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

     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

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

     52MB       (1) 1M 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       None           None            None
                    36

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

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

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

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

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

                        DRAM CONFIGURATION (CONT)

     Size          Bank 0         Bank 1         Bank 2         Bank 3

     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) 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) 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

     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) 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 accepts x 32 SIMMs. Banks are interchangeable.

                      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 SPEED SELECTION

        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

       63iMHz          Pins 1 & 2 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

       120iMHz         Pins 1 & 2 closed   Pins 2 & 3 closed

       133iMHz         Pins 1 & 2 closed   Pins 1 & 2 closed

                            CPU TYPE SELECTION

       Type             J2            J3            J4            J5

      80486SX         Closed         Open          Open          Open

      ODP486           Open         Closed         Open          Open

      UMCU5S          Closed         Open          Open          Open

      CX486DX          Open         Closed         Open         Closed

      AM486DX          Open         Closed         Open          Open

      80486DX          Open         Closed         Open          Open

     CX486DX2          Open         Closed         Open         Closed

     CX486DX2V         Open         Closed         Open         Closed

     AM486DX2          Open         Closed         Open          Open

    AM486DX2-80        Open         Closed         Open          Open

     80486DX2          Open         Closed         Open          Open

     CX486DX4          Open         Closed         Open         Closed

  CX486DX4 (P/O)       Open          Open          Open          Open

  AM486DX4 (NV8T)      Open         Closed         Open          Open

  AM486DX4 (SV8B)      Open          Open         Closed         Open

     80486DX4          Open         Closed         Open          Open

   80486DX4 (WB)       Open          Open         Closed         Open

       P24D            Open          Open         Closed         Open

       P24T            Open          Open         Closed         Open

      CX5X86           Open          Open          Open          Open

       AM X5           Open          Open         Closed         Open

                            CPU TYPE SELECTION

       Type             J6           J7           JP42           JP43

     80486SX          Closed        Open        Pins 1 & 2    Pins 1 & 2
                                                 closed         closed

      ODP486          Closed        Open        Pins 1 & 2    Pins 2 & 3
                                                 closed         closed

      UMCU5S          Closed        Open        Pins 1 & 2    Pins 1 & 2
                                                 closed         closed

     CX486DX           Open         Open        Pins 1 & 2    Pins 1 & 2
                                                 closed         closed

     AM486DX          Closed        Open        Pins 1 & 2    Pins 1 & 2
                                                 closed         closed

     80486DX          Closed        Open        Pins 1 & 2    Pins 1 & 2
                                                 closed         closed

     CX486DX2          Open         Open        Pins 1 & 2    Pins 1 & 2
                                                 closed         closed

    CX486DX2V          Open         Open        Pins 1 & 2    Pins 1 & 2
                                                 closed         closed

     AM486DX2         Closed        Open        Pins 1 & 2    Pins 1 & 2
                                                 closed         closed

   AM486DX2-80        Closed        Open        Pins 2 & 3    Pins 1 & 2
                                                 closed         closed

     80486DX2         Closed        Open        Pins 1 & 2    Pins 1 & 2
                                                 closed         closed

     CX486DX4          Open         Open        Pins 1 & 2    Pins 1 & 2
                                                 closed         closed

  CX486DX4 (P/O)       Open        Closed       Pins 1 & 2    Pins 1 & 2
                                                 closed         closed

  AM486DX4 (NV8T)     Closed        Open        Pins 1 & 2    Pins 1 & 2
                                                 closed         closed

  AM486DX4 (SV8B)      Open        Closed       Pins 1 & 2    Pins 1 & 2
                                                 closed         closed

     80486DX4         Closed        Open        Pins 1 & 2    Pins 1 & 2
                                                 closed         closed

  80486DX4 (WB)        Open        Closed       Pins 1 & 2    Pins 1 & 2
                                                 closed         closed

       P24D            Open        Closed       Pins 1 & 2    Pins 1 & 2
                                                 closed         closed

       P24T            Open        Closed       Pins 1 & 2    Pins 2 & 3
                                                 closed         closed

      CX5X86           Open        Closed       Pins 1 & 2    Pins 1 & 2
                                                 closed         closed

      AM X5            Open        Closed       Pins 1 & 2    Pins 1 & 2
                                                 closed         closed

   CPU MULTIPLIER SELECTION (DX4 ONLY)

     Multiplier              JP41

         2x           Pins 2 & 3 closed

         3x                  Open

         4x           Pins 2 & 3 closed

                           CPU VOLTAGE SELECTION

         Voltage                   JP32                     JP38

          3.3v                     Open              Pins 1 & 2 closed

           4v                      Open              Pins 2 & 3 closed

           5v              Pins 1 & 2, 3 & 4, 5             N/A
                                & 6 closed

                    DMA CHANNEL SELECTION

       Channel               JP1                  JP2

          1            Pins 1 & 2 closed   Pins 1 & 2 closed

          3            Pins 2 & 3 closed   Pins 2 & 3 closed

