HEWLETT-PACKARD COMPANY

HP VECTRA 486N PC Series

Processor        80486SX/80487SX/80486DX/80486DX2
Processor Speed  16/20/25/33/50(internal)/66(internal)MHz
Chip Set         HP
Max. Onboard     48MB
DRAM
Cache            None
BIOS             HP
Dimensions       330mm x 218mm
I/O Options      Bus mouse port, floppy interface, IDE interface, parallel
                 port, riser card slot, serial ports (2), VGA port
NPU Options      None

[Image]

                                CONNECTIONS

  Purpose                  Location    Purpose                   Location

  VGA port                   CN1       Parallel port               CN4

  Serial port 2              CN2       Bus mouse                   CN5

  Serial port 1              CN3       Riser card                  S1

                        USER CONFIGURABLE SETTINGS

                 Function                      Switch         Position

  »   I/O controller index select 0388h        SWA/3            Off
      and data address select 0398h

      I/O controller index select 026Fh        SWA/3             On
      and data address select 026Eh

  »   ROM setup write enabled                  SWA/4            Off

      ROM setup write disabled                 SWA/4             On

  »   IRQ12 select mouse port (CN5)            SWB/1            Off

      IRQ12 disabled                           SWB/1             On

  »   IRQ9 disabled                            SWB/2            Off

      IRQ9 select VGA port                     SWB/2             On

  »   VGA port enabled                         SWB/3            Off

      VGA port disabled                        SWB/3             On

  »   Password check enabled                   SWB/4            Off

      Password check disabled (password        SWB/4             On
      clear)

  »   CMOS memory normal operation             SWB/5            Off

      CMOS memory clear                        SWB/5             On

  »   Security mode disabled (CMOS setup       SWB/6            Off
      may be changed)

      Security mode enabled (CMOS setup        SWB/6             On
      may not be changed)

  »   CPU upgrade socket disabled (CPU         SWB/8            Off
      upgrade not installed)

      CPU upgrade socket enabled (CPU          SWB/8             On
      upgrade installed)

                        DRAM CONFIGURATION

      Size            Bank 0           Bank 1          Bank 2

       4MB         (1) 1M x 36          NONE            NONE

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

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

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

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

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

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

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

      22MB         (1) 1M x 36      (1) 4M x 36     (1) 512K x 36

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

      28MB         (1) 1M x 36      (1) 4M x 36      (1) 2M x 36

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

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

   CPU SPEED CONFIGURATION

  Speed     SWA/1    SWA/2

  16MHz      Off      Off

  20MHz      On       Off

  25MHz      On        On

  33MHz      On        On

  50iMHz     On        On

  66iMHz     On        On

  VIDEO MEMORY CONFIGURATION

     Size           Bank 0

     512KB           NONE

    1024KB        (4) 44256

  VIDEO SWITCH CONFIGURATION

     Size           SWB/7

     512KB            Of

    1024KB           Off