
REPLY CORPORATION

POWERBOARD 55SX

Processor     80486SX2/80486DX2/80486DX4
Processor     25/33/50(internal)/66(internal)/100(internal)MHz
Speed
Chip Set      IBM
Max. Onboard  64MB
DRAM
Cache         None
BIOS          Reply
Dimensions    330mm x 218mm
I/O Options   Floppy drive interface, IDE interface, 32-bit MCA riser
              card,

              parallel port, PS/2 mouse port, serial port, VGA port
NPU Options   Unidentified

[Image]

                                CONNECTIONS

  Purpose                  Location   Purpose                    Location

  Drive power              CN1, CN2   IDE interface connector      J16

  PS/2 mouse port            J2       Floppy drive interface       J18

  Parallel port              J3       Speaker                      J23

  Serial port                J4       32-bit MCA riser card        S1

  VGA port                   J5

                        USER CONFIGURABLE SETTINGS

                Function                    Jumper           Position

     CMOS memory normal operation            J7            pins 2 & 3
                                                              closed

      CMOS memory clear                       J7            pins 1 & 2
                                                              closed

                           DRAM CONFIGURATION

     Size         Bank 0         Bank 1         Bank 2        Bank 3

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

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

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

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

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

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

     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) 4M x 36       NONE           NONE          NONE

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

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

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

     24MB       (1) 2M x 36   (1) 2M x 36    (1) 1M x 36    (1) 1M x 36

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

     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

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

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

     28MB       (1) 4M x 36   (1) 2M x 36    (1) 1M 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) 2M 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) 4M x 36   (1) 4M x 36        NONE          NONE

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

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

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

     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) 4M x 36   (1) 4M x 36    (1) 1M x 36    (1) 1M x 36

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

     44MB       (1) 4M x 36   (1) 4M x 36    (1) 2M x 36    (1) 1M x 36

     44MB       (1) 8M x 36   (1) 1M x 36    (1) 1M x 36    (1) 1M x 36

     44MB       (1) 8M x 36   (1) 2M x 36    (1) 1M x 36       NONE

     48MB       (1) 4M x 36   (1) 4M x 36    (1) 2M x 36    (1) 2M x 36

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

     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

                       DRAM CONFIGURATION (CONT.)

     Size         Bank 0         Bank 1         Bank 2        Bank 3

     52MB       (1) 4M x 36   (1) 4M x 36    (1) 4M x 36    (1) 1M x 36

     52MB       (1) 8M x 36   (1) 2M x 36    (1) 2M x 36    (1) 1M x 36

     52MB       (1) 8M x 36   (1) 4M x 36    (1) 1M x 36       NONE

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

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

     56MB       (1) 8M x 36   (1) 4M x 36    (1) 1M x 36    (1) 1M x 36

     56MB       (1) 8M x 36   (1) 4M x 36    (1) 2M x 36       NONE

     60MB       (1) 8M x 36   (1) 4M x 36    (1) 2M x 36    (1) 1M x 36

     64MB       (1) 4M x 36   (1) 4M x 36    (1) 4M x 36    (1) 4M x 36

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

                       MISCELLANEOUS TECHNICAL NOTE

  Note: J19 switches CPU frequency, exact configuration information is
  unidentified.

