
DATAEXPERT CORPORATION

EXP8449

Device     Mainboard
Type
Processor  80486SX/SL80486SX/UMC U5/CX 486DX/AM486DX/80486DX/
           SL80486DX/TI486DX2/AMD Plus/AM486DX2/AM 486DXL/80486DX2/
           AM486DX4/80486DX4/P24D/P24T/CX 5X86
Processor  25/33/40/50(internal)/50/66(internal)/75(internal)/100(internal)MHz
Speed
Chip Set   ALI
Video Chip None
Set
Maximum    128MB
Onboard
Memory
Maximum    None
Video
Memory
Cache      128/256/512KB
BIOS       AMI
Dimensions 220mm x 220mm
I/O        32-bit PCI slots (3), floppy drive interface, green PC connector,
Options    IDE interfaces (2), parallel port, PS/2 mouse port, serial ports
           (2)

[Image]

                                CONNECTIONS

  Purpose                  Location    Purpose                  Location

  Serial port 2              CN1       IDE interface LED           J2

  Serial port 1              CN2       Reset switch                J3

  Floppy drive interface     CN3       Turbo switch                J4

  Parallel port              CN4       Turbo LED                   J5

  IDE interface 1            CN5       Power LED & keylock         J6

  IDE interface 2            CN6       Speaker                     J7

  PS/2 mouse port            CN7       Green PC connector         JP15

  External battery            J1       32-bit PCI slots         PC1  PC3

                        USER CONFIGURABLE SETTINGS

               Function                    Label           Position

      Battery type select external          J1              Closed

      CMOS memory clear                     J1         Pins 1 & 2 closed

     Factory configured - do not           JP4          Unidentified
      alter

      Parallel port IRQ select IRQ7         JP9        Pins 2 & 3 closed

      Parallel port IRQ select IRQ5         JP9        Pins 1 & 2 closed

     Factory configured - do not          JP14          Unidentified
      alter

     Factory configured - do not          JP18          Unidentified
      alter

      Flash BIOS voltage select 12v        JP21        Pins 2 & 3 closed

      Flash BIOS voltage select 5v         JP21        Pins 1 & 2 closed

     Factory configured - do not          JP22          Unidentified
      alter

     Factory configured - do not          JP41          Unidentified
      alter

                            SIMM CONFIGURATION

     Size          Bank 0         Bank 1        Bank 2         Bank 3

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

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

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

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

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

     16MB       (1) 4M x 36        None          None           None

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

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

                      DIMM/SIMM CONFIGURATION (CONT)

     Size          Bank 0        Bank 1         Bank 2         Bank 3

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

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

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

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

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

     22MB       (1) 4M x 36     (1) 512K x     (1) 512K x   (1) 512K x 36
                                   36             36

     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

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

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

     32MB       (1) 4M x 36    (1) 2M x 36    (1) 2M x 36       None

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

     32MB       (1) 2M x 36    (1) 2M x 36    (1) 2M x 36    (1) 2M x 36

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

     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

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

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

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

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

     64MB       (1) 8M 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

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

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

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

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

                            CACHE CONFIGURATION

     Size         Bank 0        Bank 1        Bank 2            TAG

   128KB (A)       None          None       (4) 32K x 8     (1) 8K x 8

   128KB (B)     (1) 32K x       None          None         (1) 8K x 8
                    32

   256KB (A)       None          None       (4) 64K x 8   (1) 16K/32K x 8

   256KB (B)     (1) 32K x       None       (4) 32K x 8   (1) 16K/32K x 8
                    32

   256KB (C)     (1) 32K x     (1) 32K x       None       (1) 16K/32K x 8
                    32            32

     512KB         None          None       (4) 128K x      (1) 32K x 8
                                                8

                        CACHE JUMPER CONFIGURATION

     Size          JP17          JP20           JP37            JP42

  128KB (A)        Open          Open         Pins 1 & 2      Pins 1 & 2
                                               closed          closed

  128KB (B)        Open          Open         Pins 1 & 2      Pins 1 & 2
                                               closed          closed

  256KB (A)        Open         Closed        Pins 1 & 2      Pins 2 & 3
                                               closed          closed

  256KB (B)        Open         Closed        Pins 2 & 3      Pins 2 & 3
                                               closed          closed

  256KB (C)        Open         Closed        Pins 2 & 3      Pins 2 & 3
                                               closed          closed

    512KB         Closed        Closed        Pins 1 & 2      Pins 2 & 3
                                               closed          closed

                            CPU SPEED SELECTION

     Speed          JP11           JP12           JP13           JP16

     25MHz          Open           Open        Pins 2 & 3        Open
                                                 closed

     33MHz         Closed         Closed       Pins 2 & 3        Open
                                                 closed

     40MHz          Open          Closed       Pins 2 & 3        Open
                                                 closed

     40MHz          Open          Closed       Pins 1 & 2       Closed
                                                 closed

    50iMHz          Open           Open        Pins 2 & 3        Open
                                                 closed

     50MHz         Closed          Open        Pins 1 & 2       Closed
                                                 closed

    66iMHz         Closed         Closed       Pins 2 & 3        Open
                                                 closed

    75iMHz          Open           Open        Pins 2 & 3        Open
                                                 closed

    100iMHz        Closed         Closed       Pins 2 & 3        Open
                                                 closed

  Note: Either setting may be used for 40MHz.

                       CPU TYPE SELECTION

    Type         JP23         JP24        JP25         JP26

   80486SX       Open         Open        1 & 2        1 & 2

  SL80486SX      Open        Closed       1 & 2        1 & 2

   UMC U5        Open         Open        1 & 2        1 & 2

  CX 486DX       Open        Closed       1 & 2        2 & 3

   AM486DX       Open         Open        1 & 2        2 & 3

   80486DX       Open         Open        1 & 2        2 & 3

  SL80486DX      Open        Closed       1 & 2        2 & 3

  TI486DX2       Open        Closed       1 & 2        2 & 3

  AMD Plus      1 & 2        Closed       2 & 3        2 & 3

  AM486DX2      2 & 3         Open        1 & 2        2 & 3

  AM 486DXL      Open         Open        1 & 2        2 & 3

  80486DX2       Open         Open        1 & 2        2 & 3

  AM486DX4       Open         Open        1 & 2        2 & 3

  80486DX4       Open        Closed       1 & 2        2 & 3

    P24D        1 & 2        Closed       2 & 3        2 & 3

    P24T         Open        Closed       2 & 3        2 & 3

   CX 5X86      1 & 2        Closed       2 & 3        2 & 3

  Note: Pins designated should be in the closed position.

                   CPU TYPE SELECTION (CONT)

    Type         JP27         JP30        JP31         JP32

   80486SX      1 & 2         Open        Open         Open

  SL80486SX     3 & 4        3 & 4        Open         Open

   UMC U5       1 & 2         Open        Open         Open

  CX 486DX      5 & 6        5 & 6        2 & 3        1 & 2

   AM486DX      1 & 2         Open        2 & 3        Open

   80486DX      1 & 2         Open        2 & 3        Open

  SL80486DX     3 & 4        3 & 4        2 & 3        Open

  TI486DX2      5 & 6        5 & 6        2 & 3        1 & 2

  AMD Plus      3 & 4        3 & 4        2 & 3        2 & 3

  AM486DX2      1 & 2         Open        2 & 3        Open

  AM 486DXL     1 & 2        1 & 2        2 & 3        Open

  80486DX2      1 & 2         Open        2 & 3        Open

  AM486DX4      1 & 2         Open        2 & 3        Open

  80486DX4      3 & 4        3 & 4        2 & 3        Open

    P24D        3 & 4        3 & 4        2 & 3        2 & 3

    P24T        3 & 4        3 & 4        1 & 2        Open

   CX 5X86      3 & 4        3 & 4        2 & 3        2 & 3

  Note: Pins designated should be in the closed position.

                 CPU TYPE SELECTION (CONT)

     Type           JP33           JP35           JP36

    80486SX         Open           Open           Open

   SL80486SX        3 & 4          Open           Open

    UMC U5          Open           Open           Open

   CX 486DX         5 & 6          Open           Open

    AM486DX         Open           Open           Open

    80486DX         Open           Open           Open

   SL80486DX        3 & 4          Open           Open

   TI486DX2         5 & 6          Open           Open

   AMD Plus         3 & 4          Open           Open

   AM486DX2         Open           Open           Open

   AM 486DXL        1 & 2          Open           Open

   80486DX2         Open           Open           Open

   AM486DX4         Open           Open           Open

   80486DX4         3 & 4          Open           Open

     P24D           3 & 4          Open           Open

     P24T           3 & 4          Open           Open

    CX 5X86         3 & 4          1 & 2          Open

  Note: Pins designated should be in the closed position.

                           CPU VOLTAGE SELECTION

     Voltage             JP28               JP29               JP34

      3.45v            Pins 2 & 3        Pins 3 & 4         Pins 2 & 3
                        closed             closed             closed

       3.6v            Pins 2 & 3        Pins 5 & 6         Pins 2 & 3
                        closed             closed             closed

        4v             Pins 2 & 3        Pins 1 & 2         Pins 2 & 3
                        closed             closed             closed

        5v             Pins 1 & 2           Open            Pins 1 & 2
                        closed                                closed

                    DMA CHANNEL SELECTION

       Channel               JP5                  JP6

          1            Pins 1 & 2 closed   Pins 1 & 2 closed

          3            Pins 2 & 3 closed   Pins 2 & 3 closed

                        INTERNAL KEYBOARD SELECTION

        Setting               JP19            JP39              JP40

         Enabled             Open           Closed            Closed

          Disabled           Closed           Open              Open

