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