
NEC TECHNOLOGIES, INC.

IMAGE 425/433/466

Processor       80486SX/80487DX/80486DX/ODP486SX/80486DX2
Processor Speed 25/33/50(internal)/66(internal)MHz
Chip Set        C & T
Max. Onboard    64MB
DRAM
Cache           256KB expandable
BIOS            Intel
Dimensions      220mm x 220mm
I/O Options     Cache expansion slot, floppy drive interface, IDE
                interface, multifunction connector

                (PS/2 mouse, PS/2 keyboard, power LED), parallel port,
                proprietary ethernet slot

                SCSI interface, serial port (2, 1 optional), VGA port, VGA
                feature connector
NPU Options     None

[Image]

                                CONNECTIONS

  Purpose                Location     Purpose                  Location

  IDE interface             J7        Cache expansion slot        J18

  Floppy drive              J8        Speaker (not used)          JP1
  interface

  VGA feature               J9        Reset switch                JP3
  connector

  Optional disk power       J12       Serial port 1               P1
  supply

  External battery          J13       Serial port 2               P2
                                      (optional)

  IDE interface LED         J14       VGA port                    P3
  (not used)

  Proprietary               J15       Parallel port               P4
  Ethernet slot

  Proprietary riser         J16       Multifunction               P5
  card slot                           connector

  SCSI interface            J17

                        USER CONFIGURABLE SETTINGS

              Function                  Jumper/Switch         Position

     Factory configured do not              JP2                Open
      alter

     ROM emulation enabled                  JP4                Open

      ROM emulation disabled                 JP4               Closed

     Onboard video enabled             SW1/switch 1            Off

      Onboard video disabled            SW1/switch 1             On

     Floppy interface enabled          SW1/switch 2            Off

      Floppy interface disabled         SW1/switch 2             On

     System password enabled           SW1/switch 3            Off

      System password disabled          SW1/switch 3             On

     Flash BIOS write protect          SW1/switch 4            Off
      enabled

      Flash BIOS write protect          SW1/switch 4             On
      disabled

     BIOS programming via network      SW1/switch 5            Off
      enabled

      BIOS programming via network      SW1/switch 5             On
      disabled

     CPU speed select 25/50iMHz        SW1/switch 6             On

      CPU speed select 33/66iMHz        SW1/switch 6            Off

                            DRAM CONFIGURATION

     Size         Bank 0        Bank 1         Bank 2          Bank 3

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

      5M        (1) 1M x 36    (1) 256K x       NONE            NONE
                                  36

      6M        (1) 1M x 36    (1) 256K x     (1) 256K x        NONE
                                  36             36

      7M        (1) 1M x 36    (1) 256K x     (1) 256K x    (1) 256K x 36
                                  36             36

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

      9M        (1) 1M x 36   (1) 1M x 36     (1) 256K x        NONE
                                                 36

     10M        (1) 1M x 36   (1) 1M x 36     (1) 256K x    (1) 256K x 36
                                                 36

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

     13M        (1) 1M x 36   (1) 1M x 36    (1) 1M x 36    (1) 256K x 36

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

     16M        (1) 4M x 36      NONE           NONE            NONE

     17M        (1) 4M x 36    (1) 256K x       NONE            NONE
                                  36

     18M        (1) 4M x 36    (1) 256K x     (1) 256K x        NONE
                                  36             36

     19M        (1) 4M x 36    (1) 256K x     (1) 256K x    (1) 256K x 36
                                  36             36

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

     21M        (1) 4M x 36   (1) 1M x 36     (1) 256K x        NONE
                                                 36

     22M        (1) 4M x 36   (1) 1M x 36     (1) 256K x    (1) 256K x 36
                                                 36

     24M        (1) 4M x 36   (1) 1M x 36    (1) 1M x 36        NONE

     25M        (1) 4M x 36   (1) 1M x 36    (1) 1M x 36    (1) 256K x 36

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

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

     33M        (1) 4M x 36   (1) 4M x 36     (1) 256K x        NONE
                                                 36

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

     37M        (1) 4M x 36   (1) 4M x 36    (1) 1M x 36    (1) 256K x 36

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

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

     49M        (1) 4M x 36   (1) 4M x 36    (1) 4M x 36    (1) 256K x 36

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

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

