COMPAQ COMPUTER CORPORATION

PRESARIO 500 SERIES

Processor         80487SX/80486DX/80486DX2
Processor Speed   25/33/50(internal)/66(internal)MHz
Chip Set          Compaq
Max. Onboard DRAM 64MB
Cache             None
BIOS              Unidentifed
Dimensions        330mm x 218mm
I/O Options       Game port, parallel port, PS/2 mouse port, serial port,
                  microphone port, headphone port, line in port, line out
                  port, modem port, telephone port, VESA feature connector
NPU Options       None

[Image]

                                CONNECTIONS

  Purpose                   Location   Purpose                   Location

  PS/2 mouse port             CN1      Line in port                CN8

  Game port                   CN2      Modem port                  CN9

  Parallel port               CN3      Telephone port             CN10

  Serial port                 CN4      VESA feature connector      J8

  Microphone port             CN5      External battery            J11

  Headphone port              CN6      Riser Card                  SL1

  Line out port               CN7

                        USER CONFIGURABLE SETTINGS

                Function                    Jumper           Position

  »   TV board I/O address select             J16           pins 1 & 2
      B18/B19                                                 closed

      TV board I/O address select             J16           pins 2 & 3
      B28/B29                                                 closed

  »   CMOS memory clear                       P5              Closed

      CMOS memory normal operation            P5               Open

             DRAM CONFIGURATION

     Size          Bank 0        Bank 1

      4MB        (1) 1M x 36      NONE

      8MB        (1) 2M x 36      NONE

     12MB        (1) 1M x 36   (1) 2M x 36

     16MB        (1) 2M x 36   (1) 2M x 36

     16MB        (1) 4M x 36      NONE

     20MB        (1) 1M x 36   (1) 4M x 36

     24MB        (1) 2M x 36   (1) 4M x 36

     24MB        (1) 4M x 36   (1) 2M x 36

     32MB        (1) 4M x 36   (1) 4M x 36

     32MB        (1) 8M x 36      NONE

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

     40MB        (1) 2M x 36   (1) 8M x 36

     40MB        (1) 8M x 36   (1) 2M x 36

     48MB        (1) 4M x 36   (1) 8M x 36

     48MB        (1) 8M x 36   (1) 4M x 36

     64MB        (1) 8M x 36   (1) 8M x 36

          CPU TYPE CONFIGURATION

        Type                  P2

       80486SX        pins 1 & 2 closed

       80486DX        pins 2 & 3 closed

       80487SX        pins 2 & 3 closed

      80486DX2        pins 2 & 3 closed

         CPU SPEED CONFIGURATION

        Speed                 P1

        25MHz         pins 1 & 2 closed

        33MHz         pins 2 & 3 closed

       50iMHz         pins 1 & 2 closed

       66iMHz         pins 2 & 3 closed