NOVACOR, INC.

OPTimum 486DXBB - 4A4B1

Processor         80486SX/80486DX
Processor Speed   25/33/50MHz
Chip Set          OPTI
Max. Onboard DRAM 32MB
SRAM Cache        None
BIOS              AMI
Dimensions        254mm x 218mm
I/O Options       None
NPU Options       None

[Image]

                                CONNECTIONS

  Purpose                   Location    Purpose                  Location

  Turbo LED                   CR1       Speaker                    J20

  External battery             J1       Turbo switch               JP6

  Power LED & keylock         J19       Reset switch               SW1

                        USER CONFIGURABLE SETTINGS

                Function                     Jumper          Position

  »   CMOS memory normal operation            JP1           pins 2 & 3
                                                              closed

      CMOS memory clear                       JP1           pins 1 & 2
                                                              closed

  »   Password select enabled                 JP2             closed

      Password select disabled                JP2              open

              DRAM CONFIGURATION

      Size          Bank 0          Bank 1

      1MB         (4) 256K x 9       NONE

      2MB         (4) 256K x 9   (4) 256K x 9

      4MB         (4) 1M x 9         NONE

      5MB         (4) 256K x 9    (4) 1M x 9

      8MB         (4) 1M x 9      (4) 1M x 9

      16MB        (4) 4M x 9         NONE

      32MB        (4) 4M x 9      (4) 4M x 9

                          CPU TYPE CONFIGURATION

       Type               JP3                JP4               JP5

      80486DX          pins 1 & 2         pins 1 & 2          closed
                         closed            closed

      80487SX          pins 2 & 3         pins 1 & 2          closed
                         closed            closed

      80486DX             open            pins 2 & 3           open
                                           closed