
SIEMENS NIXDORF INFORMATIONSSYSTEME AG

S26361-D800

Processor  80486SX/80486SX2/80486DX/80486DX2/80486DX4/Pentium Overdrive
Processor  25/33/50(internal)/66(internal)/75(internal)/100(internal)MHz
Speed
Chip Set   Unidentified
Max.       128MB
Onboard
DRAM
Cache      128/256KB
BIOS       Unidentified
Dimensions 330mm x 218mm
I/O        32-bit PCI slots (1), floppy drive interface, IDE interfaces
Options    (2), parallel port, PS/2 mouse port, serial ports (2), VGA
           feature connector, VGA port
NPU        None
Options

[Image]

                                CONNECTIONS

  Purpose                  Location    Purpose                  Location

  VGA port                    CN1      IDE interface 1             CN8

  Parallel port               CN2      IDE interface 2             CN9

  Serial port 2               CN3      Imageport connector        CN10

  Serial port 1               CN4      VGA feature connector      CN11

  PS/2 mouse port             CN5      Speaker                     JP1

  Optional power              CN6      LED connector               JP2
  connector

  Floppy drive interface      CN7      32-bit PCI slot             SL1

                        USER CONFIGURABLE SETTINGS

                Function                     Jumper          Position

     L2 cache installed                      J5D           pins 1 & 2
                                                              closed

      L2 cache not installed                  J5D           pins 2 & 3
                                                              closed

     Cache type select HIT                   J5E           pins 1 & 2
                                                              closed

      Cache type select L2WB                  J5E           pins 2 & 3
                                                              closed

     Cache type select write through         J5F           pins 1 & 2
                                                              closed

      Cache type select write back            J5F           pins 2 & 3
      (Pentium Overdrive)                                     closed

     Factory configured - do not             J6A             Closed
      alter

     Flash BIOS mode select normal           J6B              Open

      Flash BIOS mode select recovery         J6B             Closed

     Floppy drive interface enabled          J6C             Closed

      Floppy drive interface disabled         J6C              Open

     Flash BIOS write protect enabled        J6D              Open

      Flash BIOS write protect                J6D             Closed
      disabled

     CMOS memory normal operation            J6E              Open

      CMOS memory clear                       J6E             Closed

     Factory configured - do not              J7           pins 2 & 3
      alter                                                   closed

                           DRAM CONFIGURATION

     Size         Bank 0         Bank 1         Bank 2        Bank 3

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

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

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

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

                           CACHE CONFIGURATION

     Size          Bank 0         Bank 1          TAG            MD1

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

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

                  CACHE JUMPER CONFIGURATION

        Size                 J5B                  J5C

        128KB          pins 1 & 2 closed   pins 1 & 2 closed

        256KB          pins 2 & 3 closed   pins 2 & 3 closed

          CPU TYPE CONFIGURATION

        Type                   J3

       80486SX         pins 1 & 2 closed

      80486SX2         pins 1 & 2 closed

       80486DX         pins 2 & 3 closed

      80486DX2         pins 2 & 3 closed

      80486DX4         pins 2 & 3 closed

  Pentium Overdrive    pins 2 & 3 closed

                          CPU TYPE CONFIGURATION

           Type                      J2                     J5A

   Non SL enhanced CPU        pins 2 & 3, 5 & 6      pins 2 & 3 closed
                                   closed

     SL enhanced CPU          pins 1 & 2, 4 & 5      pins 1 & 2 closed
                                   closed

  CPU SPEED CONFIGURATION

    Speed          J6F

    25MHz          Open

    33MHz         Closed

    50iMHz         Open

    66iMHz        Closed

    75iMHz         Open

   100iMHz        Closed

        CPU VOLTAGE CONFIGURATION

       Voltage                J4

        3.3v          pins 1 & 2 closed

         5v           pins 2 & 3 closed

               DMA CHANNEL CONFIGURATION

            DMA                         J1

           DMA 1             pins 1 & 2, 4 & 5 closed

           DMA 3             pins 2 & 3, 5 & 6 closed

