
ACER, INC.

AP41

Processor  AM486SX/80486SX/SL80486SX/AM486DX/CX486DX/80486DX/SL80486DX/
           AM486DX2/CX486DX2/TI486DX2/80486DX2/80486DX2/SL80486DX2/
           AM486DX4/CX486DX4/80486DX4/P24D/P24T/CX5X86
Processor  25/33/40/50(internal)/66(internal)/75(internal)/100(internal)MHz
Speed
Chip Set   SIS
Max.       128MB
Onboard
DRAM
Cache      128/256/512KB
BIOS       AMI
Dimensions 254mm x 218mm
I/O        Parallel port, serial ports (2), 32-bit PCI slots (3), floppy
Options    drive interface, IDE interfaces (2)
NPU        None
Options

[Image]

                                CONNECTIONS

  Purpose                  Location      Purpose                Location

  Serial port 1               CN1        IDE interface 1          CN6

  Serial port 2               CN2        Floppy drive             CN7
                                         interface

  Parallel port               CN3        IDE interface LED        JP6

  IDE interface 2             CN4        Green PC connector       JP9

  Power LED & keylock     CN5 pins 1 -   External battery         JP35
                               5

  Speaker                 CN5 pins 7 -   Chassis fan power        JP43
                              10

  Turbo LED              CN5 pins 12 -   Chassis fan power        JP46
                              13

  Turbo switch           CN5 pins 15 -   32-bit PCI slots      PC1 - PC3
                              17

  Reset switch           CN5 pins 19 -
                              20

                        USER CONFIGURABLE SETTINGS

                Function                    Jumper           Position

      On board I/O enabled                    JP1           pins 1 & 2
                                                              closed

      On board I/O disabled                   JP1           pins 2 & 3
                                                              closed

      BIOS type select 12v flash ROM          JP4           pins 1 & 2
                                                              closed

      BIOS type select 5v EEPROM or           JP4           pins 2 & 3
      flash ROM                                               closed

      CMOS memory normal operation           JP37           pins 1 & 2
                                                              closed

      CMOS memory clear                      JP37           pins 2 & 3
                                                              closed

                            DRAM CONFIGURATION

     Size         Bank 0         Bank 1         Bank 2         Bank 3

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

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

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

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

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

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

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

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

     5MB        (1) 256K x     (1) 512K x     (1) 512K x        NONE
                    36             36             36

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

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

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

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

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

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

     7MB        (1) 256K x     (1) 512K x     (1) 512K x    (1) 512K x 36
                    36             36             36

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

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

                        DRAM CONFIGURATION (CONT)

     Size         Bank 0         Bank 1         Bank 2         Bank 3

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

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

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

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

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

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

     10MB      (1) 1M x 36     (1) 512K x     (1) 512K x    (1) 512K x 36
                                   36             36

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

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

     12MB      (1) 2M x 36     (1) 512K x     (1) 512K x        NONE
                                   36             36

     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

     13MB       (1) 256K x    (1) 1M x 36    (1) 1M x 36     (1) 1M x 36
                    36

     14MB      (1) 2M x 36     (1) 512K x     (1) 512K x    (1) 512K x 36
                                   36             36

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

     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

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

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

     17MB       (1) 256K x    (1) 2M x 36    (1) 2M x 36        NONE
                    36

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

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

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

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

     20MB      (1) 4M x 36     (1) 512K x     (1) 512K x        NONE
                                   36             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

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

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

     25MB       (1) 256K x    (1) 2M x 36    (1) 2M x 36     (1) 2M x 36
                    36

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

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

                        DRAM CONFIGURATION (CONT)

     Size         Bank 0         Bank 1         Bank 2         Bank 3

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

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

     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

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

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

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

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

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

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

     38MB      (1) 8M x 36     (1) 512K x     (1) 512K x    (1) 512K x 36
                                   36             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

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

     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

     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

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

     49MB       (1) 256K x    (1) 4M x 36    (1) 4M x 36     (1) 4M x 36
                    36

     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) 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

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

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

     65MB       (1) 256K x    (1) 8M x 36    (1) 8M x 36        NONE
                    36

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

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

     66MB      (1) 16M x 36    (1) 512K x        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

                        DRAM CONFIGURATION (CONT)

     Size          Bank 0        Bank 1         Bank 2         Bank 3

     68MB       (1) 16M x 36    (1) 512K x     (1) 512K x       NONE
                                   36             36

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

     70MB       (1) 16M x 36    (1) 512K x     (1) 512K x   (1) 512K x 36
                                   36             36

     72MB       (1) 2M x 36    (1) 8M x 36    (1) 8M x 36       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) 8M x 36    (1) 4M x 36    (1) 4M x 36    (1) 4M x 36

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

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

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

     97MB        (1) 256K x    (1) 8M x 36    (1) 8M x 36    (1) 8M x 36
                     36

     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) 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

                            CACHE CONFIGURATION

       Size              Bank 0            Bank 1              TAG

       128KB           (4) 32K x 8          NONE          (1) 16K x 8 or
                                                           (1) 32K x 8

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

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

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

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

                        CACHE JUMPER CONFIGURATION

    Size         JP24        JP25         JP26        JP27        JP29

    128KB        1 & 2       1 & 2       2 & 3       1 & 2       1 & 2, 3
                                                                   & 4

    256KB        1 & 2       2 & 3       2 & 3       2 & 3       2 & 3, 4
                                                                   & 5

    256KB        1 & 2       2 & 3       1 & 2       1 & 2       1 & 2, 3
                                                                   & 4

    512KB        2 & 3       2 & 3       2 & 3       2 & 3       2 & 3, 4
                                                                   & 5

    512KB        2 & 3       2 & 3       2 & 3       1 & 2       1 & 2, 3
                                                                   & 4

  Note: Pins designated should be in the closed position.

                   CPU TYPE CONFIGURATION (5 VOLT ONLY)

     Type         JP11        JP12        JP13        JP14        JP15

   AM486SX       2 & 3        Open        Open        Open        Open

   80486SX       2 & 3        Open        Open        Open        Open

  SL80486SX      2 & 3       1 & 2        Open        Open        Open

   AM486DX       2 & 3        Open        Open        Open        Open

   CX486DX       2 & 3       1 & 2        Open        Open        Open

   80486DX       2 & 3        Open        Open        Open        Open

  SL80486DX      2 & 3       1 & 2        Open        Open        Open

   AM486DX2      2 & 3        Open        Open        Open        Open

   CX486DX2      2 & 3       1 & 2        Open        Open        Open

   80486DX2      2 & 3        Open        Open        Open        Open

  SL80486DX2     2 & 3       1 & 2        Open        Open        Open

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

     P24T        1 & 2       1 & 2        1 & 2       Open        Open

  Note: Pins designated should be in the closed position.

                CPU TYPE CONFIGURATION (5 VOLT ONLY, CONT)

      Type         JP16        JP17        JP18        JP19        JP20

    AM486SX        Open        Open        2 & 3       Open        Open

    80486SX        Open        Open        2 & 3       Open        Open

   SL80486SX       Open        3 & 4       2 & 3       Open        Open

    AM486DX        Open        Open       1 & 2, 3     Open       3 & 4
                                            & 4

    CX486DX        2 & 3       2 & 3      1 & 2, 3    2 & 3       3 & 4
                                            & 4

    80486DX        Open        Open       1 & 2, 3     Open       3 & 4
                                            & 4

   SL80486DX       Open        3 & 4      1 & 2, 3     Open        Open
                                            & 4

    AM486DX2       Open        Open       1 & 2, 3     Open       3 & 4
                                            & 4

    CX486DX2       2 & 3       2 & 3      1 & 2, 3    2 & 3       3 & 4
                                            & 4

    80486DX2       Open        Open       1 & 2, 3     Open       3 & 4
                                            & 4

   SL80486DX2      Open        3 & 4      1 & 2, 3     Open        Open
                                            & 4

      P24D         1 & 2      1 & 2, 3    1 & 2, 3     Open       3 & 4
                                & 4         & 4

      P24T         1 & 2       3 & 4      1 & 2, 3    1 & 2       2 & 3
                                            & 4

  Note: Pins designated should be in the closed position.

                CPU TYPE CONFIGURATION (5 VOLT ONLY, CONT)

      Type           JP21          JP22          JP23           JP40

    AM486SX          Open          Open          Open       pins 1 & 3, 2
                                                             & 4 closed

    80486SX          Open          Open          Open       pins 1 & 3, 2
                                                             & 4 closed

   SL80486SX       pins 4 & 5    pins 1 & 2    pins 2 & 3   pins 1 & 3, 2
                    closed        closed        closed       & 4 closed

    AM486DX          Open          Open          Open       pins 1 & 3, 2
                                                             & 4 closed

    CX486DX        pins 2 & 3      Open        pins 1 & 2   pins 1 & 3, 2
                    closed                      closed       & 4 closed

    80486DX          Open          Open          Open       pins 1 & 3, 2
                                                             & 4 closed

   SL80486DX       pins 4 & 5    pins 1 & 2    pins 2 & 3   pins 1 & 3, 2
                    closed        closed        closed       & 4 closed

    AM486DX2         Open          Open          Open       pins 1 & 3, 2
                                                             & 4 closed

    CX486DX2       pins 2 & 3      Open        pins 1 & 2   pins 1 & 3, 2
                    closed                      closed       & 4 closed

    80486DX2         Open          Open          Open       pins 1 & 3, 2
                                                             & 4 closed

   SL80486DX2      pins 4 & 5    pins 1 & 2    pins 2 & 3   pins 1 & 3, 2
                    closed        closed        closed       & 4 closed

      P24D         pins 4 & 5    pins 2 & 3    pins 2 & 3   pins 1 & 3, 2
                    closed        closed        closed       & 4 closed

      P24T         pins 1 & 2      Open        pins 2 & 3   pins 1 & 3, 2
                    closed                      closed       & 4 closed

                  CPU TYPE CONFIGURATION (3.45 VOLT ONLY)

      Type          JP11       JP12        JP13       JP14        JP15

    AM486DX2       2 & 3       Open        Open       2 & 3       Open

    CX486DX2       2 & 3       1 & 2       Open       Open        Open

    TI486DX2       2 & 3       1 & 2       Open       Open        Open

    AM486DX4       2 & 3       Open        Open       Open        Open

     AM486DX4      1 & 2       1 & 2       Open       1 & 2       1 & 2
     (SV8B)

     AM486DX4      2 & 3       1 & 2       Open       Open        Open
     (SV8T)

    CX486DX4       2 & 3       1 & 2       Open       1 & 2       1 & 2

  CX486DX4 (M7)    2 & 3       1 & 2       Open       Open        Open

  80486dx4 (wb)    1 & 2       1 & 2       Open       1 & 2       1 & 2

  80486dx4 (wT)    2 & 3       1 & 2       Open       Open        Open

     CX5X86        2 & 3       1 & 2       Open       1 & 2       1 & 2

  Note: Pins designated should be in the closed position.

              CPU TYPE CONFIGURATION (3.45 VOLT ONLY, CONT)

      Type          JP16       JP17        JP18       JP19        JP20

    AM486DX2        Open       Open      1 & 2, 3     Open        3 & 4
                                           & 4

    CX486DX2       2 & 3       2 & 3     1 & 2, 3     2 & 3       3 & 4
                                           & 4

    TI486DX2       2 & 3       2 & 3     1 & 2, 3     2 & 3       3 & 4
                                           & 4

    AM486DX4        Open       Open      1 & 2, 3     Open        3 & 4
                                           & 4

     AM486DX4      1 & 2      1 & 2, 3   1 & 2, 3     Open        3 & 4
     (SV8B)                     & 4        & 4

     AM486DX4       Open       3 & 4     1 & 2, 3     Open        3 & 4
     (SV8T)                                & 4

    CX486DX4       1 & 2      1 & 2, 3   1 & 2, 3     Open        3 & 4
                                & 4        & 4

  CX486DX4 (M7)    2 & 3       2 & 3     1 & 2, 3     2 & 3       3 & 4
                                           & 4

  80486dx4 (wb)    1 & 2      1 & 2, 3   1 & 2, 3     Open        3 & 4
                                & 4        & 4

  80486dx4 (wT)     Open       3 & 4     1 & 2, 3     Open        3 & 4
                                           & 4

     CX5X86        1 & 2      1 & 2, 3   1 & 2, 3     Open        3 & 4
                                & 4        & 4

  Note: Pins designated should be in the closed position.

              CPU TYPE CONFIGURATION (3.45 VOLT ONLY, CONT)

       Type            JP21         JP22          JP23           JP40

     AM486DX2          Open         Open          Open       3 & 5, 4 & 6

     CX486DX2         2 & 3         Open          1 & 2      3 & 5, 4 & 6

     TI486DX2         2 & 3         Open          1 & 2      3 & 5, 4 & 6

     AM486DX4          Open         Open          Open       3 & 5, 4 & 6

  AM486DX4 (SV8B)     4 & 5         2 & 3         2 & 3      3 & 5, 4 & 6

  AM486DX4 (SV8T)     4 & 5         1 & 2         2 & 3      3 & 5, 4 & 6

     CX486DX4         4 & 5         2 & 3         2 & 3      3 & 5, 4 & 6

  CX486DX4 (M7)       2 & 3         Open          1 & 2      3 & 5, 4 & 6

  80486dx4 (wb)       4 & 5         2 & 3         2 & 3      3 & 5, 4 & 6

  80486dx4 (wT)       4 & 5         1 & 2         2 & 3      3 & 5, 4 & 6

      CX5X86          4 & 5         2 & 3         2 & 3      3 & 5, 4 & 6

  Note: Pins designated should be in the closed position.

                          CPU SPEED CONFIGURATION

      Speed              JP30               JP31               JP32

      25MHz            pins 1 & 2        pins 2 & 3         pins 2 & 3
                        closed             closed             closed

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

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

      50iMHz           pins 1 & 2        pins 2 & 3         pins 2 & 3
                        closed             closed             closed

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

      75iMHz           pins 1 & 2        pins 2 & 3         pins 2 & 3
                        closed             closed             closed

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

                      DMA CONFIGURATION

         DMA                 JP2                  JP3

        DMA 1          pins 2 & 3 closed   pins 2 & 3 closed

        DMA 3          pins 1 & 2 closed   pins 1 & 2 closed

